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http://dx.doi.org/10.6110/KJACR.2015.27.6.293

A Study of the Indoor Thermal Environment in Apartment Buildings in Freezing Weather Operation of Heat Recovery Ventilator by CFD Simulation  

Kim, Chang-Yeon (GS Engineering and Construction)
Park, Jong-Il (Depattment of Building System, Dongeui University)
Kim, Dong-Gyu (Specialized Graduate School Science and Technology Convergence, Pukyong National University)
Shin, Byong-Hwan (Department of Refrigeration and Air conditioning Engineering, Pukyong National University)
Kum, Jong-Soo (Department of Refrigeration and Air conditioning Engineering, Pukyong National University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.27, no.6, 2015 , pp. 293-299 More about this Journal
Abstract
In Korea, it is the law that an apartment building which consists of over 100 households must have a ventilation system installed, either natural or mechanical. The heat recovery ventilator (HRV) is great way to reduce energy consumption. In this research we confirmed that based on site's construction plan and existing diffuser form, performed purpose CFD which simulates operation in temperatures below $-5^{\circ}C$ to circumstances of installation of an HRV in an apartment. As a result of this research we found that when the diffuser's aperture area was adjusted, the distribution of air temperature and residence time of air was more equally distributed and air temperature was higher, compared to when the diffuser has an identical aperture area. We also found that we are able to increase even more air temperature and air distribution of air temperature and residence time of air was even more equally distributed when run in parallel with a splitter damper.
Keywords
HRV(Heat recovery ventilator); Indoors thermal environment; Freezing weather season; Residence time of air; Splitter Damper;
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  • Reference
1 KS B 6879 : 2007 Heat recovery ventilators.
2 KARSE B 0030-2003 Heat recovery ventilators.
3 Moon, G. B., 2013, Study on airflow distribution improvement of splitter damper in the ventilation system of the apartment building, Pukyong National University, Busan, Korea.
4 Shin, H. J., 2009, Improvement plan for an effectiveness elevation of apartment house ventilation equipment, Korea Journal of Air Conditioning and Refrigeration Engineering, Vol. 38, No. 6, pp. 60-67.