TY - GEN
T1 - Comparison of heat pump design and performance for modern refrigerants
AU - Nielsen, Stefan
AU - Christensen, Stefan Wuust
AU - Thorsen, Richard S.
AU - Elmegaard, Brian
N1 - Publisher Copyright:
© 2018 International Institute of Refrigeration. All rights reserved.
PY - 2018
Y1 - 2018
N2 - Due to increasing awareness of global warming, the types of refrigerants used in heat pumps are changing globally. Regulations for HFC refrigerants are being introduced due to their high global warming potential (GWP). This can create a shift in demand for different refrigerants since HFCs are still commonly used in many countries. As a result, the refrigerant charge will play a significant role when determining the most feasible refrigerant. This paper presents a numerical study of the performance of natural, HFC, and HFO refrigerants for a one-stage cycle and focuses on the refrigerant charge influence. The study shows that R717 is the most optimal refrigerant, exhibiting a 51% to 87% smaller charge and 12% to 27% lower cost of heat compared to other refrigerants. In addition, the results show that the refrigerant price should be included when conducting economic evaluations.
AB - Due to increasing awareness of global warming, the types of refrigerants used in heat pumps are changing globally. Regulations for HFC refrigerants are being introduced due to their high global warming potential (GWP). This can create a shift in demand for different refrigerants since HFCs are still commonly used in many countries. As a result, the refrigerant charge will play a significant role when determining the most feasible refrigerant. This paper presents a numerical study of the performance of natural, HFC, and HFO refrigerants for a one-stage cycle and focuses on the refrigerant charge influence. The study shows that R717 is the most optimal refrigerant, exhibiting a 51% to 87% smaller charge and 12% to 27% lower cost of heat compared to other refrigerants. In addition, the results show that the refrigerant price should be included when conducting economic evaluations.
KW - Economic evaluation
KW - Industrial heat pumps
KW - Modern refrigerants
KW - Refrigerant charge
UR - http://www.scopus.com/inward/record.url?scp=85049851730&partnerID=8YFLogxK
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U2 - 10.18462/iir.gl.2018.1149
DO - 10.18462/iir.gl.2018.1149
M3 - Conference contribution
AN - SCOPUS:85049851730
T3 - Refrigeration Science and Technology
SP - 294
EP - 301
BT - 13th IIR Gustav Lorentzen Conference on Natural Refrigerants
PB - International Institute of Refrigeration
T2 - 13th IIR Gustav Lorentzen Conference on Natural Refrigerants: Natural Refrigerant Solutions for Warm Climate Countries
Y2 - 18 June 2018 through 20 June 2018
ER -