Impact of district heat source on primary energy savings of a desiccant-enhanced evaporative cooling system
- Authors
- Dong, Hye-Won; Lee, Sung-Joon; Yoon, Dong-Seob; Park, Joon-Young; Jeong, Jae-Weon
- Issue Date
- Mar-2017
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- District heating; Energy simulation; Regenerator; Liquid desiccant; Evaporative cooling
- Citation
- ENERGY, v.123, pp.432 - 444
- Indexed
- SCIE
SCOPUS
- Journal Title
- ENERGY
- Volume
- 123
- Start Page
- 432
- End Page
- 444
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/152832
- DOI
- 10.1016/j.energy.2017.02.005
- ISSN
- 0360-5442
- Abstract
- The purpose of this research is to evaluate the primary energy savings of a desiccant-enhanced evaporative (DEVap) cooling system with a district heat source. The DEVap system consists of an internally cooled liquid desiccant dehumidifier and dew point evaporative cooler connected in series. The liquid desiccant unit requires a heat source for regenerating the weak desiccant solution, which means that the DEVap cooler is a thermally driven cooling system. It can provide energy benefits when the supplied heat comes from waste heat or renewable heat sources. In this research, district heat obtained from a combined heat and power (CHP) system was used as the heat source for the DEVap system. The primary energy consumption and CO2 emission rate of the proposed system with a district heat source were estimated using a detailed energy simulation and compared with those powered by a conventional gas boiler. The results showed that the DEVap system with district heat source consumed 46.2% less primary energy and produced 40.5% less CO2 compared with the system using the conventional gas boiler.
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