Abstract
Absorption cooling cycles are promising renewable/waste energy technologies for building energy efficiency. To overcome the two major shortcomings (working fluid and driving temperature) of conventional absorption cooling technologies, various ionic-liquid-based low-global-warming-potential working fluids were investigated for different hybrid low-temperature absorption cooling cycles. Results showed that the hybrid cycle not only greatly enhanced the coefficient of performance (COP) but also lowered the driving temperature from 60~70 ºC to below 45 ºC. R32 performed the best, with a maximum COP of 0.670, while R1234yf performed the worst, with a maximum COP of 0.430. The optimal compression ratio of the hybrid cycle is 1.9~3.4 for maximum COP and 1.3~2.2 for maximum exergy COP. The low-side hybrid absorption cycle is a better choice in terms of high cycle efficiency and low discharge temperature. This work can facilitate better utilization of lower-temperature renewable/waste energy.
| Original language | English |
|---|---|
| Pages (from-to) | 1620-1625 |
| Journal | Energy Procedia |
| Volume | 158 |
| DOIs | |
| Publication status | Published - Feb 2019 |
| Event | 10th International Conference on Applied Energy (ICAE 2018): “Innovative Solutions for Energy Transitions” - Hong Kong, China Duration: 22 Aug 2018 → 25 Aug 2018 https://www.journals.elsevier.com/applied-energy/news/call-for-papers-icae2018-the-10th-international-conference-o (For reference) |
Research Keywords
- Hybrid absorption cooling
- Ionic liquid
- Low GWP
- Renewable and waste energy
Publisher's Copyright Statement
- This full text is made available under CC-BY-NC-ND 4.0. https://creativecommons.org/licenses/by-nc-nd/4.0/
