Chapter 3
3.10 Chillers (Displacement) Chillers can be classified by compressor type, including centrifugal and positive displacement. Positive displacement compressors include reciprocating, screw, and scroll compressors. There is currently no ban on new HFC-based displacement chiller equipment. Industry representatives who took the survey were asked how this lack of a market prohibition has affected the sector in terms of 1) increasing the uptake of climatefriendly alternative technologies; 2) increasing the development of climate-friendly alternative technologies; and 3) increasing the price competitiveness of climatefriendly alternative technologies. Seventy-six percent of survey respondents said the lack of a ban slowed the uptake of climate-friendly alternative technologies, while 73% said it also slowed the development of such technologies. Sixty-eight percent believed that it negatively impacted the price competitiveness of alternative technology.
When asked whether they support a full ban on HFC-based equipment in displacement chillers by 2024, 81% said they did. With regards to refrigerant of choice in displacement chillers, propane took the majority of votes with 42%. Numerous respondents mentioned how they have not experienced problems with the flammability of propane chillers, and have achieved great efficiencies and performance. The improved environmental impact compared to fluorinated refrigerants was also raised.
Figure 3.10.2 What is your preferred refrigerant for use in displacement chiller applications? 41 responses
Respondents were asked if they thought this sector would have fully converted to natural refrigerants by now had a sectoral ban been included for 2020. The majority (66%) were positive that this would have happened by 2020.
Figure 3.10.1 Do you support a full ban on new HFC-based equipment in the chillers (displacement) sector by 2024?
7% Other
15% Ammonia
15% HFOs
2% HFCs
41 responses
20% CO2
20% No
81% Yes
36
Market Readiness Per Sector
42% Propane
