Journal
ENERGY
Volume 123, Issue -, Pages 432-444Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.energy.2017.02.005
Keywords
District heating; Energy simulation; Regenerator; Liquid desiccant; Evaporative cooling
Categories
Funding
- National Research Foundation (NRF) [2015R1A2A1A05001726]
- Korea Agency for Infrastructure Technology Advancement (KAIA) [16CTAPC116268-01]
- Korea Institute of Energy Technology Evaluation and Planning (KETEP) of the Republic of Korea [20164010200860]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20164010200860] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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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. (C) 2017 Elsevier Ltd. All rights reserved.
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