Research libraryWater, Dye and Energy per Unit
Chapter 11 of 14 · Part III · Draft web edition
A recovery or electrification project earns its place only when a measured source can serve a measured sink at the required time, temperature and emissions factor.
The cloth is woven from this chapter's 4 exhibits: each weft is one exhibit's own data, normalised; each warp group is a section. The probe reads the exhibit's own value where it crosses. Procedural visualisation, not a measurement.
Read-out
DOE Third Edition, Table 5: compressor cooling water 100 to 180 F; engine jacket water 190 to 200 F; condensate 150 to 500 F. Conversion C=(F-32)*5/9, rounded to one decimal. General industrial categories, not measurements at a textile plant. Temperature does not establish available duty or permissible cooling.
Unit: degrees Celsius. Status: derived. Sources: S17.
Overture · 1 min
Heat recovery should be selected from a timed map of sources and demands, then tested against the heat actually delivered to accepted production. A hot stream alone does not establish an opportunity. The receiving duty must accept its temperature, flow, availability and contamination controls. GFT recommends reducing avoidable demand, pairing compatible streams, and only then selecting exchangers, storage, heat pumps or replacement supply. This chapter provides a proposed engineering decision method, not a record of installations or achieved GFT savings. Its starting principle follows the Department of Energy's systems approach, which examines interactions before individual equipment.[S17]
11.1
The Department of Energy recommends mapping material and energy movements before prioritising component improvements. Its industrial waste-heat tables describe broad source classes, rather than measured conditions at a textile factory. They are useful prompts for investigation, but neither prove that a particular stream exists nor establish recoverable power.[S17] GFT's proposed register should therefore attach an evidence status to each stream: measured, estimated, supplier-declared or unavailable. An engineering team should be able to trace every candidate match back to the observations that justify it.
For a source, record its identity, physical medium, mass flow, inlet temperature, permissible outlet temperature and operating window. Add batch identity, solids, corrosive constituents, pressure, location and access for cleaning. For a sink, record incoming conditions, required delivery temperature, acceptable temperature variation, demand profile and production consequences if delivery fails. These are proposed design fields. A source described merely as hot wastewater and a sink described merely as hot water cannot support procurement, because neither entry defines what heat can cross the boundary.
The register should separate sensible heat from phase-change duties. A liquid cooling without boiling can be screened through mass flow, heat capacity and temperature change. Steam and condensing vapours require an enthalpy balance at the relevant pressure. GFT recommends documenting the property basis and whether a reading represents bulk fluid, a pipe surface or an inferred temperature. Those distinctions should remain visible when the preliminary register becomes a supplier specification. A convenient sensor location should not silently redefine the thermal boundary.
For preliminary screening, Exhibit 48 converts selected published industrial ranges into Celsius. The selection deliberately includes utility streams that could be investigated around an industrial site. It is not a textile-process temperature specification. The conversion is arithmetic from the Department of Energy table, and the ranges retain its broad scope.[S17]
A high temperature range should not automatically win the ranking. GFT proposes ranking compatible matches by the useful duty available during production, after access, cleanliness and control constraints. A nearby moderate-temperature source may serve water preheating directly, while a distant hotter source may require pipework and operating arrangements that defeat its apparent advantage. This is a proposed selection rule, not a quantified comparison. The technical team should preserve the reason for rejecting a match so later equipment proposals do not revive an already disproved assumption.
Timing requires a shared clock. GFT recommends logging source discharge and sink filling against the same batch events, including cleaning, idle periods and recipe changes. An illustrative source delivering heat during a drain event cannot be paired automatically with a machine that filled before that event. The analyst should compare overlap intervals, not multiply unrelated annual totals. Where a buffer is proposed, its usable temperature range, losses and dispatch rule become explicit assumptions. Storage can shift delivery within its design envelope; it cannot create a missing thermal source.
GFT recommends carrying uncertainty through the screening calculation. A temperature difference calculated from instruments with uncertain offsets may have a much larger relative uncertainty than either temperature reading suggests. Flow, heat-capacity assumptions and incomplete event capture should each receive a stated basis. The reviewer should identify which uncertainty could reverse the choice between candidates, then commission that measurement first. A longer list of precise-looking outputs is less useful than resolving the input that determines whether a match works. The register should preserve missing intervals and rejected readings, together with the rule for excluding them. An inferred stream should remain an estimate until a suitable measurement replaces it; its apparent precision should not change because it appears in a chart.
11.2
Exhibit 498 paragraphs step it
Read-out
Assume baseline fuel 1000 MWh/year, useful duty 800 MWh/year and constant marginal boiler efficiency 0.80. Assume recovery of 10 kW for 4000 coincident hours, giving 40 MWh useful heat. Displaced fuel=40/0.80=50 MWh; remaining fuel=(800-40)/0.80=950 MWh. Pump electricity 4 MWh/year is a separate ledger item, not a fuel deduction. No measured GFT performance is represented.
Unit: illustrative MWh of fuel per year. Status: illustrative. Illustrative figures are teaching examples, not measured factory results.
The Department of Energy's economiser tip sheet reports that fuel requirements can often fall by 5 to 10 percent, with payback below two years. It also requires assessment after boiler tuning, with clean heat-transfer surfaces and appropriate excess air, and warns that cooling limits depend on corrosion and condensation conditions. These are screening statements in a dated guide, not a Cameroon quotation, a warranty or a GFT result.[S27]
GFT recommends separating restoration of the existing boiler from incremental recovery. Record operating load, fuel basis, feedwater condition, steam pressure, flue-gas temperature and combustion settings before and after routine corrective work. If the baseline includes avoidable malfunction and the project includes its repair, the resulting improvement should be attributed transparently. An economiser should not receive credit for tuning that would have happened anyway. Conversely, the project should not be evaluated against a nominal catalogue efficiency when the operating boiler behaves differently.
The proposed review should extend beyond the stack. Utilities staff should inspect steam leaks, insulation condition, condensate collection, return temperature and operating schedules, then identify which actions alter the economiser's receiving duty. GFT's purpose is to prevent separate teams from claiming the same heat. For example, a proposed condensate-return improvement should update the feedwater conditions used in the economiser model. Equipment sizing should follow the revised balance. This is a coordination requirement for the engineering study, rather than a claim about a measured plant.
The fuel bridge in Exhibit 49 is an illustrative annual account. It shows only boiler fuel, so an auxiliary electricity penalty cannot disappear inside a mixed-energy total. Every value is an assumed modelling input or arithmetic from those inputs. The separate worked example explains the boundary and makes the illustration reproducible.
The illustration holds efficiency constant to expose the calculation. GFT recommends replacing that assumption with a load-dependent assessment before approval. Recovered preheat can change burner operation, so a trial should include conditions where the boiler operates lightly as well as conditions where demand is high. The sign-off should explain whether measured fuel reductions came from recovery, changed output, altered operating hours or other interventions. Heat delivered by an exchanger is evidence of transfer; fuel reduction under comparable conditions is evidence of displacement.
Commissioning should include an explicit counterfactual. GFT recommends agreeing what the existing plant would consume at the same useful duty, product mix and operating state without recovery. Where a controlled bypass comparison is feasible, the trial plan should define how to avoid confusing transient reheating with steady operation. Where it is infeasible, explain the model and its uncertainty. Keep control changes and maintenance interventions in the event log, including those that are unrelated to the new equipment. The owner should be able to reproduce the reported displacement from retained readings and assumptions. This proposed verification contract should be agreed before installation, because a baseline cannot always be reconstructed after the flow arrangement has changed.
For verification, GFT proposes recording exchanger inlet and outlet conditions alongside fuel use, boiler load, availability and accepted output. The comparison should include cleaning and bypass periods. Where direct fuel attribution is uncertain, report the heat-transfer measurement and the modelled displacement separately. A model should not be promoted to measured saving merely because an instrument appears on the drawing. The investment assessment elsewhere in this paper can then value a technically qualified saving without having to reconstruct its boundary.
11.3
Related · chapter 058 paragraphs step it
Read-out
Illustrative single-unit thermal ledger for a 100 kg cotton woven lot, showing how mercerisation hot-wash and alkali-recovery heat duties offset downstream dyeing and reprocessing heat changes. Process relationships follow S16, S03 and S0502; water (L/kg) and caustic soda (kg/kg) are tracked in separate physical ledgers, not subtracted from MJ.
Unit: MJ thermal energy per 100 kg accepted fabric (illustrative). Status: illustrative. Sources: S16, S03, S0502. Illustrative figures are teaching examples, not measured factory results.
Read this exhibit in its chapter ↗IFC's textile guidance explicitly recommends recovering heat from continuous dyeing or bleaching and from hot batch effluents to preheat incoming water. It also connects water use with wastewater, sludge and heating demand. These recommendations support examining the water and thermal systems together; they do not establish a universal recovery fraction.[S01] GFT recommends distinguishing heat exchange across a barrier from direct reuse of the liquid. A scheme may recover heat while keeping contaminated liquid entirely outside the receiving process.
The proposed stream review should preserve recipe identity through the drain event. Combine streams only after establishing that mixing is necessary and compatible with the intended recovery route. The study should ask whether segregation preserves a higher-temperature source, simplifies cleaning or protects a downstream treatment requirement. It should also ask whether the proposed segregation is operable during production. A theoretical match that requires staff to recognise an unmarked pipe or change valves without a clear instruction should remain a design problem, not an assumed operating benefit.
GFT recommends specifying a contamination barrier and a response to barrier failure. The design review should identify which side contains process water, which side supplies the receiving duty, where leakage would travel and how the failure would be detected. Pressure arrangements, isolation and suitable inspection provisions belong in the engineering specification. This chapter does not prescribe an exchanger construction or approve a sanitary design. Its recommendation is that the receiving process must have a defined protection argument before recovered heat is credited.
Fouling should be treated as a changing operating condition, rather than a constant correction attached to a clean calculation. GFT proposes recording delivered duty, approach temperatures, pressure drop and cleaning events together. The maintenance plan should explain how the exchanger is isolated, drained and returned to service, and where cleaning residues go. The acceptance trial should include the condition near the planned cleaning point. Otherwise, a brief test could demonstrate what freshly cleaned equipment can transfer while leaving sustained production performance unresolved.
GFT recommends a treatment review before fixing the source outlet target. The treatment operator should define permissible inlet conditions and how they will be monitored during the pilot. Recovery must also preserve the established discharge and production controls. A lower discharge temperature should not be claimed as permission to change any other parameter. The handover should specify a safe bypass route and what happens to production if the recovery equipment fails. Heat recovery should add a controlled option, rather than make wastewater handling dependent on an unproved device.
The recovery layout should also survive ordinary production changes. GFT recommends walking through shade changes, machine cleaning, unplanned stoppage and a receiving tank already at its permitted temperature. Each state needs a destination for the source stream and a clear indication of whether recovery is active. A control system should not retain an assumed demand after that demand has ended. The pilot record should show heat rejected during these states rather than deleting the states from the annual denominator. This gives the scheduler a realistic account of recoverable duty and prevents an operating instruction from asking staff to create unnecessary hot-water demand merely to maintain a favourable recovery ratio.
The proposed ledger should enter freshwater volume, effluent volume and thermal exchange as distinct quantities. An exchanger that preheats incoming water has not necessarily reduced water withdrawal. The heat removed from the effluent and the heat delivered to the incoming stream are opposite sides of the same transfer, not additive savings. GFT recommends assigning the transfer a common identifier, reconciling discrepancies and reporting auxiliaries separately. This prevents the reuse and energy teams from counting the same benefit in incompatible accounts.
Interlude · the cloth half-woven
Woven: sections 11.0 to 11.3Still to weave: 11.4 to 11.6
Read-out
Inherited sector context, not GFT output. Original publication dates were not recorded. The 2030 figure is a national target, not achieved production; the baseline is not a current verification.
Unit: percent of cotton fibre. Status: sourced. Sources: R06, R07.
Read this exhibit in its chapter ↗11.4
20 K
20 K: Carnot limit 17.2, Assumed 0.45 factor 7.7 (illustrative heating COP, thermal kWh per electrical kWh) · illustrative
The textile electrification study defines heating coefficient of performance as useful thermal output divided by external energy input.
30 K
30 K: Carnot limit 11.8, Assumed 0.45 factor 5.3 (illustrative heating COP, thermal kWh per electrical kWh) · illustrative
40 K
40 K: Carnot limit 9.1, Assumed 0.45 factor 4.1 (illustrative heating COP, thermal kWh per electrical kWh) · illustrative
50 K
50 K: Carnot limit 7.5, Assumed 0.45 factor 3.4 (illustrative heating COP, thermal kWh per electrical kWh) · illustrative
Article heating-mode Carnot relationship: COP=T_sink/(T_sink-T_source), temperatures in kelvin. Assume reservoir source 50 C (323.15 K) and sinks 70,80,90,100 C. Horizontal labels show temperature lift in kelvin. Second curve assumes 0.45 times Carnot solely for sensitivity; it is not measured real COP and excludes auxiliaries. Values rounded to two decimals.
Unit: illustrative heating COP, thermal kWh per electrical kWh. Status: illustrative. Sources: S1101. Illustrative figures are teaching examples, not measured factory results.
11.4 · the bodyExhibit 50 above; its figures are illustrative where marked.
The textile electrification study defines heating coefficient of performance as useful thermal output divided by external energy input. Its theoretical treatment relates performance to source and sink temperatures and qualifies integration as plant-specific, requiring pinch analysis for an optimum arrangement.[S1101] The practical consequence is a proposed selection sequence: use direct compatible transfer where justified, identify the residual temperature requirement, then investigate whether a heat pump can serve it. A source suitable for direct preheating should not automatically be assigned to powered upgrading.
The conceptual curve in Exhibit 50 uses the article's thermodynamic relationship with invented operating temperatures. Absolute temperature enters the ratio. The second curve is an assumed fraction of the theoretical limit, chosen only to demonstrate sensitivity. It is not a real-machine performance curve, a product comparison or a sizing basis. External heat-exchanger approaches and system auxiliaries would need their own treatment before a supplier performance guarantee could be assessed.[S1101]
For procurement, GFT recommends defining performance at the receiving process boundary. The specification should state which electrical loads are included, which temperatures are guaranteed, what source flow is available and which operating states are excluded. A compressor-only ratio and a system ratio should have different labels. Useful heat should be measured where it serves the production duty, while the electrical account should include the declared system boundary. The supplier should provide the test method and the conditions under which the guarantee ceases to apply.
GFT proposes calculating a period coefficient from total useful heat divided by total system electricity over that same period. Do not average isolated operating ratios without considering their energy weights. The record should include standby electricity, source interruptions, cycling and cleaning whenever those states are inside the declared boundary. An unavailable source cannot remain a full-capacity input in an annual model. An apparent gain caused by excluding difficult periods should be reported as a boundary change, not improved equipment performance.
Source allocation also needs conservation. In an illustrative heat pump delivering 300 kW at a heating COP of 3, compressor electricity is 100 kW and extracted source heat is 200 kW, ignoring other losses and auxiliaries for the example. A direct-recovery scheme cannot simultaneously consume that same source heat in a separate fully additive saving. GFT recommends drawing the residual source profile after each proposed intervention. This is especially important when direct exchange, recovery storage and heat pumping are offered as independent projects by different suppliers.
In an illustrative heat pump delivering 300 kW at a heating COP of 3
illustrative
A supplier comparison should use an agreed operating envelope rather than a single favourable point. GFT recommends asking bidders to declare performance across the measured source and sink conditions, including the lowest expected source availability and the required final delivery temperature. Record restrictions on turndown, refrigerant handling, maintenance competence and service response as procurement inputs. These fields are proposed requirements, not claims that any selected supplier can meet them. A bid with a strong nominal coefficient but an unresolved integration duty should remain technically incomplete. The evaluation should retain the original response and the accepted assumptions so later design changes can trigger a deliberate reassessment rather than silently inheriting an obsolete performance claim.
The trial plan should test the proposed control hierarchy. GFT recommends documenting when direct transfer takes priority, when the heat pump starts, how a buffer is charged and how the existing heat supply fills any shortfall. The production operator should receive a simple indication of whether the required temperature has been achieved. Thermal optimisation should not create an incentive to accept a nonconforming process condition. A pilot passes only when the equipment and the operating instruction work together under the site's intended product and schedule variation.
11.5
The textile electrification study shows that lower final energy does not invariably produce an immediate emissions reduction when grid electricity is carbon intensive. Its scenarios concern specified Asian economies and are not forecasts for Cameroon.[S1101] GHG Protocol treats purchased electricity, steam, heat and cooling within its purchased-energy accounting guidance. Its published guidance also addresses contractual instruments.[S19] GFT therefore recommends showing the physical energy comparison separately from the inventory method, with the reporting period and factor basis visible.
A proposed screening calculation compares emissions for the same useful duty. Let the fuel factor apply per unit of fuel input, boiler efficiency convert fuel to useful heat, and the electricity factor apply per unit of purchased electricity. A heat pump's operating emissions per useful thermal unit then equal the electricity factor divided by system COP. Boiler operating emissions equal the fuel factor divided by efficiency. This is a simplified GFT comparison method. It excludes upstream, refrigerant and embodied burdens unless they are explicitly added with consistent evidence.
The emissions threshold follows from that boundary. Heat pumping has lower modelled operating emissions when the electricity factor is below COP multiplied by the fuel factor divided by boiler efficiency. For a direct electric boiler, substitute its delivered-heat efficiency for COP. A good technical ratio does not supply an electricity factor. GFT recommends retaining an unresolved result where current site electricity evidence is missing, rather than inserting a convenient national or regional value. The same discipline applies to a fuel factor whose calorific-value basis has not been established.
The matrix in Exhibit 51 applies invented factors to an equal useful duty. Its coordinates are calculated quantities, not qualitative attractiveness scores. It shows why electrical capacity and emissions should be assessed independently. The combustion point excludes auxiliaries solely to keep the illustrative boundary explicit; an actual comparison must include them consistently.
Read-out
Assume fuel factor 0.20 kg CO2e/kWh fuel and electricity factor 0.50 kg CO2e/kWh electricity. These are invented sensitivity inputs, not Cameroon factors. Boiler efficiency 0.80 gives fuel 375 kW and emissions 0.25 kg/kWh useful; electric boiler efficiency 0.95 gives power 315.79 kW and emissions 0.5263; heat-pump COP 3 gives power 100 kW and emissions 0.1667. Auxiliaries, upstream burdens, refrigerants and embodied impacts excluded throughout. X-axis measures incremental heating electricity only, not whole-site load.
Unit: illustrative operating comparison at 300 kW useful heat. Status: illustrative. Illustrative figures are teaching examples, not measured factory results.
In this illustrative case, the heat-pump threshold is 3 multiplied by 0.20 divided by 0.80, or 0.75 kg CO2e per kWh of electricity. The direct electric boiler threshold is 0.95 multiplied by 0.20 divided by 0.80, or 0.2375. The assumed electricity factor of 0.50 lies between them, so the model gives opposite emissions verdicts for the electrical options. Neither threshold is a Cameroon benchmark. The example demonstrates a decision rule whose result changes when its assumed factors change.
the heat-pump threshold is 3 multiplied by 0.20 divided by 0.80
illustrative
Capacity requires a different evidence packet. GFT recommends obtaining the site's measured coincident peak, connection limits, transformer assessment, protection review and proposed starting behaviour before assigning additional heating demand. The equipment nameplate alone does not establish electrical headroom. The operator should test recovery after interruption, because restarting production and reheating process fluids may coincide. Where backup supply is proposed, its actual capability and operating emissions must enter the same comparison. A design should preserve safe shutdown and process control even when heat delivery cannot continue.
11.6
Read-out · sourced
Cameroon national water stress (1.56 percent in 2015 and 2021) and global water stress (18.6 percent in 2021) are transcribed from the 2024 FAO and UN-Water SDG Indicator 6.4.2 report and its Annex 1 (S12). Douala household reliable potable-water access (42 percent within 500 m of a tap) and constructed drainage (50 km of 250 km needed) are from the 2025 WHO account (S15). Neither indicator establishes industrial supply security at a factory site.
Unit: as labelled. Status: sourced. Sources: S12, S15.
Read this exhibit in chapter 03 ↗The IEA's renewable-heat account published in 2022 attributes 53 percent of final energy consumed for heat to industrial processes. This is global context from that edition, not a current Cameroon mix or a textile-site share.[S26] GFT recommends using it to recognise the importance of the thermal boundary, then returning to the measured site duty. Supply should be sized after avoidable demand and qualified recovery are accounted for. Otherwise, capacity and cost could be assigned to a load that the process redesign subsequently removes.
For Cameroon, the World Bank's report dated 25 June 2025 records the power-sector reform programme and its implementation status.[S25] That programme is evidence of sector activity. It does not establish this factory's connection capacity, interruption history or electricity emissions factor. GFT recommends obtaining those inputs from site observations and appropriate current records. Neither a national generation project nor a reform objective should be used as a substitute for the operating evidence needed to electrify a specific production duty.
the World Bank’s report dated 25 June 2025 records the power-sector reform programme and…
S25
The proposed supply comparison should retain the time profile of the residual heat load. For solar electricity, test how generation coincides with the electrical heating duty, other factory loads and planned operating hours. For solar thermal supply, test the receiving temperature and useful heat delivered through the proposed circuit. Storage should be assessed using its actual delivery boundary and usable operating range. GFT recommends keeping these pathways separate until they have been converted into comparable useful duty, availability, cost and emissions accounts.
A buffer should be specified by the service it must provide. GFT proposes defining the protected process, required delivery condition, duration, allowable interruption and recharge opportunity before selecting a storage medium. The study should account for standing loss, circulation electricity and temperature limits. If storage is needed only to align a batch drain with the next fill, that is a different service from maintaining heat through an extended supply interruption. Combining those requirements in one unexplained capacity figure makes the engineering decision difficult to inspect.
Renewable electricity procurement and physical reliability should also receive separate decisions. GFT recommends checking the inventory treatment and documentary quality of any contractual instrument under the applicable guidance, while independently testing how the plant receives power during production.[S19] A documentary emissions attribute does not demonstrate that a machine can complete its cycle during an interruption. Conversely, a reliable connection does not establish a low-carbon factor. The project brief should name both questions and record the evidence that closes each one.
For any proposed fuel substitution, GFT recommends specifying fuel quality, supply continuity, storage, emissions controls and operator competence before assuming availability. Residue-based options should have their own material account and competing-use assessment. The study should avoid treating a renewable label as sufficient evidence of low whole-system burden. This is a proposed diligence requirement, not a statement that any such fuel is available to GFT's programme. Site-specific environmental requirements and detailed plant design remain work for the responsible specialists.
GFT recommends a failure drill before routine operation. The team should simulate a source interruption, unavailable storage, recovery equipment isolation and a loss of the preferred power supply using an approved safe test method. Record which loads stop, which controls remain powered and how a batch is recovered or rejected. The purpose is to verify the operating response, not to demonstrate endurance beyond the design envelope. Any extra reheating, reprocessing or disposal caused by the drill should remain identifiable in the trial account. A recovery project that works only when every connected utility is available has a conditional operating envelope; the handover should state that condition plainly rather than treating it as an exceptional footnote.
The thermal handover should leave a ranked set of qualified matches, rejected alternatives with reasons, measured operating envelopes and unresolved inputs. GFT recommends assigning each accepted match a production owner and a utilities owner, with a defined fallback, cleaning instruction and verification boundary. The resulting packet should feed the solar-storage and footprint tools with labelled inputs rather than prefilled benefits. Detailed valuation belongs in the investment chapter; the present chapter supplies the technical conditions that a credible valuation must preserve.
The recommendation is therefore operational: capture temperatures and timing, reduce the residual demand, prove transfer and displacement separately, then compare supply options at the same receiving boundary. Report absolute energy and energy per accepted output together, retaining quality and treatment constraints. If the evidence supports only a screening case, call it a screening case. This chapter is an engineering decision framework, not investment, legal or tax advice, and it provides no assurance of site performance or return.
Check the record
Every knot is a source this chapter cites; select one to read its record, or filter the register by grade. Publication dates and inherited-source limits stay explicit. Read the paper's full evidence summary.
7 sources · 19 citation marks on this pageMost cited: S17, 4 times
Grade AGrade BGrade CKnot size: citations on this page
All 7 records shown
c11-S01 · Grade A
Environmental, Health, and Safety Guidelines for Textile Manufacturing
Contaminated streams should be routed to the treatment system for industrial process wastewater.
2007-04-30. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c11-S17 · Grade A
Improving Process Heating System Performance: A Sourcebook for Industry, Third Edition
A systems approach provides a tops-down review of the entire process and how the individual components perform and interact with each other.
2015. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c11-S19 · Grade A
Scope 2 Guidance
It offers much needed clarity on how corporations measure emissions from electricity and other types of energy purchases.
2015. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c11-S25 · Grade A
Cameroon Power Sector Reform Program (P178136): Implementation Status and Results Report
The Cameroon Power Sector Reform Program was approved by the World Bank in August 2023.
2025-06-25. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c11-S26 · Grade A
Renewable heat: Renewables 2022
Heating is the world’s largest energy end use, accounting for almost half of global final energy consumption.
2022-12-06. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c11-S27 · Grade A
Use Feedwater Economizers for Waste Heat Recovery, Steam Tip Sheet 3
A feedwater economizer reduces steam boiler fuel requirements by transferring heat from the flue gas to incoming feedwater.
2012. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗c11-S1101 · Grade B
Electrified Process Heating in Textile Wet-Processing Industry: A Techno-Economic Analysis for China, Japan, and Taiwan
Heat pumps are very efficient because they only transfer heat, instead of burning fuels to generate it.
2022-11-25. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.
Open the recorded source ↗S17 United States Department of Energy and Industrial Heating Equipment Association. 2015.
S27 United States Department of Energy, Advanced Manufacturing Office. 2012.
S01 International Finance Corporation, World Bank Group. 2007-04-30.
S1101 MDPI, Energies (author article accessed through PSE Community repository). 2022-11-25.
S19 GHG Protocol. 2015.
S26 International Energy Agency. 2022-12-06.
S25 World Bank. 2025-06-25.
Keep the thread · chapter 11 of 14
Move the shuttle along the rack to preview any chapter: its sections, exhibits and reading time. Draft web edition. This research is not investment, legal or tax advice; illustrative models are not measured factory results.
The paper's rack · 14 boltsBolt length: reading time
01Part I: Define the unit before reducing it
Adding value inside Cameroon requires an explicit account of the water, chemistry and energy associated with accepted production, including the work bought from suppliers.
02Part I: Define the unit before reducing it
A per-unit ratio is meaningful only when output, quality release, product mix and allocation rules remain visible beside it.
03Part I: Define the unit before reducing it
Volumetric accounting becomes decision-ready only when source, catchment, season, quality and discharge are attached to each litre.
04Part I: Define the unit before reducing it
A shade is resource-efficient only when its accepted result includes the chemistry, washing, corrections and discharge needed to produce it.
05Part II: The process sets the floor
Uneven or incomplete preparation propagates extra water, heat and correction through every later stage.
06Part II: The process sets the floor
A smaller nominal bath is an engineering opportunity whose real value depends on levelness, fixation, rinsing, throughput and reprocessing.
07Part II: The process sets the floor
The correct rinse is the minimum flow that reaches the specified residual-chemistry endpoint with acceptable colour and fabric quality.
08Part II: The process sets the floor
Removing liquid before evaporation can reduce the drying duty, provided that fabric quality, finish chemistry and accepted output remain inside the test.
09Part II: The process sets the floor
A garment plant may avoid a dyehouse on site, but it still needs a per-piece account for machines, utilities, washing and every unit that fails first time.
10Part III: Reduction is a system
A reuse system is a production process with its own energy, chemistry, losses and quality release, not a free source of water.
11Part III: Reduction is a system
A recovery or electrification project earns its place only when a measured source can serve a measured sink at the required time, temperature and emissions factor.
12Part III: Reduction is a system
A resource project is ready for capital only when its baseline, production effect and whole-cycle savings are measured with enough confidence to survive operating variance.
13Part IV: GFT's measurement and reduction system
Resource data becomes useful when it carries the identity of the fabric, recipe, machine and quality decision that produced it.
14Part IV: GFT’s measurement and reduction system
GFT recommends a sequence of evidence gates, from a signed measurement contract to repeated operating proof, with scale conditional on resource, quality and environmental performance.