Performance of a Compression-absorption Heat pump System Driven by Low-temperature Geothermal Water
Authors
Zezheng Qiu, Wenjun Leng, Jun Wang, Liping Pang
Corresponding Author
Zezheng Qiu
Available Online April 2015.
- 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/).
Cite this article
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 -