Development of desiccant and evaporative cooling based 100% outdoor system
- Authors
- Kim, Min-Hwi; Jeong, Jae Weon
- Issue Date
- Apr-2013
- Publisher
- ASCE
- Keywords
- 100% outdoor air system; Evaporative cooling; Liquid desiccant
- Citation
- AEI 2013: Building Solutions for Architectural Engineering - Proceedings of the 2013 Architectural Engineering National Conference, pp.505 - 515
- Indexed
- SCOPUS
- Journal Title
- AEI 2013: Building Solutions for Architectural Engineering - Proceedings of the 2013 Architectural Engineering National Conference
- Start Page
- 505
- End Page
- 515
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/163047
- DOI
- 10.1061/9780784412909.049
- Abstract
- The purpose of this paper was to introduce and investigate the energy and thermal performance of a desiccant and evaporative cooling based 100% outdoor air system. The concept of proposed system is decoupled system with dividing the sensible and latent cooling load in order to restrict the usage of vapor compression cooling system. In this point of view, sensible cooling load of process air is treated by indirect and direct evaporative cooler and latent cooling load is eliminated by liquid desiccant system. Control strategies and energy saving potentials of proposed system was also modeled and estimated using the TRNSYS 16 energy simulation program. It was assumed that 7500m office room is served by proposed system. The annual performance of proposed system was simulated. As a result, the energy reduction effect of 87~89% was shown in the heating season compared to conventional VAV system. Energy reduction of 49~53% and 53~63% was shown in the intermediate and cooling seasons, respectively. It was conclude that the proposed system can be saved 74~77% of annual total operating energy with respect to the conventional VAV system.
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