Performance of a Compression-absorption Heat pump System Driven by Low-temperature Geothermal Water

DOI

10.2991/meic-15.2015.253How to use a DOI?

Keywords

CAHP; COP; vertical out-tube falling film; generator; ammonia-water

Abstract

This paper analyzes the performance of a compression-absorption heat pump (CAHP) system driven by low-temperature geothermal water. Two models, respectively, for the generator and whole system using ammonia-water as the working fluid are proposed. The results show that there is an optimum concentration around 65% for the system. The maximum of overall heat transfer coefficient can be obtained with optimum spray density between 0.13 and 0.19 kg•m-1•s-1 of ammonia water solution. Operating with a high heat sink temperature between 70 and 85 , and a low heat source temperature from 25 to 40 , the COP of the system is above 4.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Zezheng Qiu
AU  - Wenjun Leng
AU  - Jun Wang
AU  - Liping Pang
PY  - 2015/04
DA  - 2015/04
TI  - Performance of a Compression-absorption Heat pump System Driven by Low-temperature Geothermal Water
BT  - Proceedings of the 2015 International Conference on Mechatronics, Electronic, Industrial and Control Engineering
PB  - Atlantis Press
SP  - 1113
EP  - 1116
SN  - 2352-5401
UR  - https://doi.org/10.2991/meic-15.2015.253
DO  - 10.2991/meic-15.2015.253
ID  - Qiu2015/04
ER  -