ANNEX54 Workshop: Heat Pumps with Low GWP Refrigerants

This workshop is our series of the biannual workshop organized by the IEA HPT’s ANNEX54: Heat Pumps with Low GWP Refrigerants. Our workshop goal is to disseminate our latest progress in ANNEX54 activities.  This workshop will provide an update on the LC150 project for R290 heat pump development, market data, and safety topics; the low-GWP heat pump research and development activities in Austria; a comparison of four ecologic assessment criteria for heat pump systems; and analysis results on the influence of refrigerant choice and application of shape-optimized air-to-refrigerant heat exchangers on low-GWP refrigerants including propane, R454B, and R32.

Background:

IEA Annex 54 aims to promote the low-GWP refrigerant application to accelerate the phase-down of high-GWP HFCs through in-depth case studies of component optimization, providing design guidelines and real-world experiences.

About the workshop, purpose, and objective:

This workshop is our series of the biannual workshop organized by the IEA HPT’s ANNEX54: Heat Pumps with Low GWP Refrigerants. Our workshop goal is to disseminate our latest progress in ANNEX54 activities. This workshop will provide an update on the LC150 project for R290 heat pump development, market data, and safety topics; the low-GWP heat pump research and development activities in Austria; a comparison of four ecologic assessment criteria for heat pump systems; and analysis results on the influence of refrigerant choice and application of shape-optimized air-to-refrigerant heat exchangers on low-GWP refrigerants including propane, R454B, and R32.

Agenda:

1. Introduction: Annex54 Heat Pumps with Low GWP Refrigerants, Yunho Hwang

2. 150 Project – Update on final results about heat pump development, market data, and safety topics, Thore Oltersdorf.

3. Austria’s activities in IEA HPT Annex 54, Christian Köfinger

4. Ecologic Assessment of Heat Pump Systems: Evaluation of the Refrigerant’s Impact, Christoph Höges

5. Shape Optimized Air-to-Refrigerant Heat Exchangers for Low-GWP Refrigerants: Dehumidification & Acoustics Considerations, Vikrant Aute

ANNEX54 Business Meeting (30 minutes)

1. Overall schedule (2019-2023) and final report deadlines

2. ANNEX54 final report preparation by each participating country

3. Future workshops/meetings plan a. 11th Workshop/meeting, August 21-25, 2023 (ICR, Paris, France)

b. Future meetings during the next Exco meetings