Heat transfer fluids production methodology

[/business/processes/production/electronics/heattransferfluids/production]

The category at business/processes/production/electronics/heattransferfluids/production provides a methodology for calculating the emissions associated with the use of heat transfer fluids during semiconductor manufacturing. Such emissions arise from evaporative losses during use. This methodology represents the Tier 1 approach described by the IPCC Guidelines for National Greenhouse Gas Inventories (NGGIP).

The methodology is based on a default emissions factor which represents the aggregate emissions per unit of silicon consumed. This factor is derived from a weighted average across all liquid fluorinated compounds typically used, expressed in terms of a C₆F₁₄. Emissions are calculated from the quantity of semiconductor substrate produced.

How to use this category

Selecting an emissions scenario

To use this category, simply create a profile item - there are no alternative drill choices.

Specifying activity data

Next, the user must specify the annual manufacturing design capacity of substrate processes, and the annual capacity utilisation using the capacity and fractionCapacityUtilised profile item values.

Results and calculation

The quantity returned represents the emissions assocaited with the specified quantities. Two quantities are returned, as follows:

C6F14: C₆F₁₄ emissions
CO2e: CO₂e emissions (C₆F₁₄ emissions converted using the appropriate global warming potential)

	UID	Label
	645C5ZFUSMFP	semiconductor

Name: Heat_transfer_fluids_production_methodology

Full path: /business/processes/production/electronics/heattransferfluids/production

Parent Category: Heat transfer fluids

Provenance: IPCC-NGGIP

calculation direct electronics emission_factor EPA EPA_mandatory EPA_mandatory_electronics fluorinated global heat_transfer_fluids IPCC IPCC_industry_electronics IPCC_tier1