Follow food-processing cooling stages before combining energy and refrigerant records
A food plant’s dashboard adds four readings labelled MWh and calls the result cooling energy. Its maintenance export adds three lines labelled coolant. Both summaries conceal what the underlying records measure. Follow the cooling service through the process before choosing which quantities belong together.
This fictional exercise is for food-processing reporting coordinators, utilities owners and maintenance-record custodians. It repairs an energy-type join and a fluid-identity join. It does not prescribe operating conditions, select a refrigerant, assess food safety, calculate emissions or allocate energy to products.
Start with the service map supplied by the technical owner
The selected window is 1 June 2026 at 00:00 inclusive to 1 July at 00:00 exclusive, Indian Standard Time, UTC+05:30. The plant owns and operates the selected cooling installation throughout. All quantities, records and technical confirmations below are invented teaching inputs, assumed accurate for this exercise.
Technical note N35 identifies chiller CH35 and refrigerant circuit R35 in the machine room. A separate secondary-fluid network L35 supplies three named process services: ingredient chilling A, post-process chilling B and finished-chilled-product holding C. The note supplies these relationships; the coordinator has not inferred them from equipment names or inspected the installation.
EPA’s secondary-loop explanation distinguishes a primary refrigerant from a secondary heat-transfer fluid, which can be water or glycol. It describes retail equipment, so it is used only for this distinction. The fictional plant arrangement remains an explicit case assumption, not a design copied from that source.
The production owner confirms that A and B refer to different completed process stages, while C can hold goods made before June. Preserve the batch and stock links needed to explain those services. No production masses, temperatures or residence times are supplied here. The stages are not three additional quantities of food, and the cooling records do not establish unique output.
Restore the meaning beside each MWh reading
E35 records 24 MWh of purchased electricity consumed by the complete selected installation during June. Its confirmed coverage includes CH35 and the associated pumps, fans and controls. There is no other electricity supply or external cooling purchase within this selected installation. E35 is a source-data record, not the whole factory’s electricity return.
QA records 30 MWh of thermal cooling delivered at A; QB records 20 at B; QC records 10 at C. The technical owner confirms that these three non-overlapping service measurements cover the same June window. They are cooling-duty quantities derived from their own approved metering arrangements, not electricity readings or customer allocations.
Keep 30 + 20 + 10 = 60 MWh as the combined thermal cooling recorded at those three service points. Keep E35’s 24 MWh as the selected installation’s electricity input. The imported dashboard’s 24 + 30 + 20 + 10 = 84 is arithmetically reproducible but has no valid meaning as purchased cooling-installation electricity.
GHG Protocol’s Scope 2 Guidance distinguishes acquired electricity, heat, steam and cooling; its cooling discussion separates electric-chiller input from cooling output. An internally produced cooling-duty reading is not another purchased electricity quantity. Preserve the energy type and measurement boundary even when both records use MWh.
Correct the reporting extract’s quantity-type field while retaining all four original readings and source references. The 60 MWh is useful information; it has not become an extra supply or an error to delete. Neither the corrected extract nor the shared unit establishes a product footprint or a complete corporate inventory.
The stage split is 30/60, 20/60 and 10/60 of the measured service-point thermal total. That alone does not measure each stage’s share of E35. For example, multiplying 24 by those fractions gives 12, 8 and 4 MWh, but these are calculated allocations under an added assumption. No such method has been approved in this case; do not present them as meter readings.
Keep the unexplained thermal difference visible
A further checked record, Q0, reports 64 MWh of thermal cooling at L35’s upstream measurement point over the same June window. Q0 is not another service stage to add to QA, QB and QC. N35 confirms that the three stage points are downstream of it, but supplies no complete reconciliation between the two measurement boundaries.
The numerical difference is 64 − 60 = 4 MWh of thermal cooling. Label it an unreconciled difference between Q0 and the three service-point readings. The file does not establish whether other loads, interval treatment, measurement uncertainty or another technical explanation accounts for it. It is not a measured electricity loss, refrigerant loss or validated cooling loss.
Ask the utilities owner for the existing measurement-boundary description and reconciliation covering Q0, QA, QB and QC. If the owner cannot establish compatible coverage or explain the difference, keep both supported records and the question open. Do not divide the 4 among A, B and C simply to make a dashboard close.
Read each fluid line against its confirmed receiving system
Service record SR6 identifies R35 and records 6 kg of R-134a added during June. The technical owner confirms the substance and receiving circuit. Retain it as a refrigerant addition record associated with R35, with the contractor’s original wording and reference. It is not a separate addition to each of A, B and C.
Service record SL50 identifies L35 and records 50 kg of a premixed propylene-glycol/water secondary fluid added. N35 and the service custodian confirm that it went into L35, not R35. Its 50 kg describes the supplied mixture; no glycol concentration or pure-glycol mass is established by this record.
Invoice U12 says only coolant, 12 kg. The receiving equipment and substance are absent, and no linked service ticket has been supplied. Keep U12 unresolved. Neither the common word coolant nor the matching month permits assigning it to R35 or L35. Request the existing item description, receiving-system reference and underlying job record from the custodian.
The imported total 6 + 50 + 12 = 68 kg must not be labelled R-134a additions. Only SR6’s 6 kg has that supported identity. Keep SL50’s 50 kg with its named mixture and U12’s 12 kg in a separate unresolved position. This classification leaves the original invoice visible without pretending its quantity is zero.
EPA’s fugitive-emissions guidance provides different calculation methods with different data needs, including material-balance approaches. A list of additions alone does not establish which method applies or a complete emissions result. The inventory-method owner must determine the necessary records and treatment; no default leak rate or emissions factor is supplied here.
Identifying the secondary fluid does not establish that its production, use or disposal has no environmental impact. It establishes only that SL50 is not supported as an R-134a addition to R35. The example neither clears a discharge nor permits reporting staff to handle, sample, drain or change any fluid.
Release a corrected extract with two open questions
The utilities handover retains E35 at 24 MWh electricity, QA/QB/QC at 60 MWh thermal in total, Q0 at 64 MWh thermal, and the unresolved 4 MWh reconciliation. The maintenance handover retains SR6, SL50 and U12 as three separately identified evidence positions. One common cooling label no longer decides their accounting treatment.
Ask a reviewer to reproduce the rejected 84 and 68 totals, then explain exactly why those labels fail. They should also find Q0’s open reconciliation and U12’s missing identity without opening the original dashboard. A correct total in one column does not excuse a wrong quantity type or an unsupported substance name in another.
For dated service-event joins after equipment changes, use the retail refrigeration records guide. For stock timing within a cold room, use the warehouse occupancy guide. To discuss a scoped records review, contact Nitium Advisory with a non-confidential outline.
Sources and limits
GHG Protocol, Scope 2 Guidance (2015), chapter 5, printed pages 34–35; Appendix A, printed page 94.
US EPA, Advanced Refrigeration Technologies, Secondary Loop System section; page updated 13 March 2026.
US EPA, Direct Fugitive Emissions from Refrigeration, Air Conditioning, Fire Suppression, and Industrial Gases (December 2023), section 2, printed pages 3 and 6–9.
Primary sources checked 14 October 2026. All plant arrangements and records are fictional. The US references supply technical accounting context, not Indian legal duties. No real equipment, process, food-safety condition, saving, emissions result or independent assurance has been assessed. Use authorised record extracts; operating decisions remain with qualified owners.
Comments