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A Study on Heat Transfer Characteristics and Uncertainty of Heat Recovery Ventilator for Various Outdoor Temperature/Humidity Conditions  

Han, Hwa-Taik (School of Mechaincal and Automotive Engineering, Kookmin University)
Choo, Youn-Bok (Graduate School, Kookim University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.20, no.9, 2008 , pp. 608-613 More about this Journal
Abstract
The purpose of the present paper is to investigate the effect of outdoor weather conditions on the performance of a heat recovery ventilator. Experiments have been performed by varying outdoor temperature/humidity conditions with the indoor conditions fixed at the standard conditions by KARSE. Results indicate humidity efficiency shows larger uncertainties than temperature efficiency in general. With the heat generation by an internal fan removed, the modified temperature efficiency remains almost constant regardless of the indoor-outdoor temperature difference. The enthalpy efficiency can have very large or negative values in case the outdoor conditions are in the vicinity of the indoor enthalpy line. The direction of heat flow, in such a case, can be opposite to that of moisture flow between two air streams. Discussions are included about various interesting features of the psychrometric processes taking place in a heat recovery ventilator.
Keywords
Heat recovery ventilator; Uncertainty analysis; Attestation test; Enthalpy efficiency;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Statute 497, Ministry of Construction Transportation
2 Murphy, D. M. and Koop, T., 2005, Review of the vapour pressures of ice and supercooled water for atmospheric applications, Quart. J. Royal Met. Soc, 608 Part B, pp. 1539-1565
3 Yee, J. J., Ihm, P. C., and Kim, H. J., 2005, Sensitivity analysis in KS and JIS standard for heat recovery ventilator, J. of SAREK, Vol. 17, No. 11, pp. 998-1005   과학기술학회마을
4 KARSE B 0030-2007, Heat-Recovery Ventilators, Korea Association of Air Conditioning Refrigerating and Sanitary Engineers
5 Statute 6911, Ministry of Environment
6 Allan, B. J., Carey, J. S., and Robert, W. B., 1998, Uncertainty analysis in the testing of air-to-air heat/energy exchangers installed in buildings, ASHRAE Transaction Vol. 104, No. 1, Pt. B
7 Yoo, S. Y., Chung, M. H., Choi, J. H., Kwon, H. K., Lee, C. W., and Lee, K. S., 2005, A study on performance of paper heat exchanger for exhaust heat recovery, Proceedings of SAREK 2005 Summer Conference, pp. 438-443
8 Han, H. and Choo, Y. B., 2006, Uncertainty analysis of test method for heat recovery ventilators, Proceedings of SAREK 2006 Summer Conference, pp. 423-428
9 Statute 2006-29, Ministry of Commerce, Industry and Energy
10 KS A 0612, Measurement of fluid flow by means of orifice plates, nozzles and venturi tubes inserted in circular cross-section conduits running full, Korean Industrial Standards