Hydrofluorocarbon Emissions-Shakti Sustainable Energy Foundation

10
Methodological Approach
Equation 4
L
Refrigerant demand from servicing sector in year ‘t’
[tonnes of HFC]
Reuse efficiency for recovered HFC gas during servicing
[percentage of HFC recovered during servicing]
As defined under Equation 3
[percentage of initial charge]
As defined under Equation 3
[percentage of residual charge at the time of servicing]
As defined under equation 1 [g/kW]
As defined under equation 1 [kW]
As defined under equation 2 [years]
As defined under Equation 3 [million units]
2.2.3 End-of-Life Emissions and Recovery
For most of the equipment, there is no recovery at the end of equipment’s life and all the remaining charge gets
released into the atmosphere. This is the case with no regulation on limiting HFC emissions at end of life. The e-
waste regulations in India address majority of these air-conditioning and refrigeration appliances but implementation
has so far been very poor and there is no incentive for the customers to get the products recycled through an
authorised e-waste handler. The supermarket systems are an exception as the HFC uptake for this application is
very high and there is an economic incentive to recover the refrigerant even in absence of regulation. Recovery rate
for supermarket systems is assumed to be 20% but due to lack of reliable information on fate of recovered gas,
it is assumed that recovered gas does not feed back into the value chain of chemical. In a simple vintage model,
considered for emissions calculations across various equipment types, equipment sales in year ‘t-L’ enter the end
of life in year ‘t’. Equation 5 represents the end of life emissions in a year that result from the retired equipment.