Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

In-Situ Performance Analysis of Centrifugal Chiller According to Varying Conditions of Chilled and Cooling Water

현장에서 운전중인 터보냉동기의 냉수와 냉각수 조건 변화에 따른 성능 해석

  • Published : 2002.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper presents modelling and analyzing method of centrifugal chiller which has a rated capacity of 200 RT(703 kW) through on-site performance test. Field performance data of a chiller installed in a research building of KIST have been collected. Simple models were developed for predicting the heat exchanger and system performances by regression of chiller operation data during 5 days in August. The models proposed here account for the effect of variations of cooling capacity, temperatures and flew rates of secondary fluids. The proposed models can predict the actual performance data from June to September within $\pm$ 5% error. The COP of centrifugal chiller are estimated under the standard rating conditions and reduced mass flow rates of chilled and cooling water.

Keywords

References

  1. 한국공업규격, 1985, KS B 6270-85 원심냉동기, 공업진흥청 기계금속표준과
  2. Air-Conditioning and Refrigeration Institute, 1998, Standard 550(590: Water Chilling Packages Using the Vapor Compression Cycle, Arlington, VA
  3. Browne, M. W. and Bansal, P. K., 1998, 'Steady-State Model of Centrifugal Liquid Chillers,' Int. J. Refrig, Vol. 21, No. 5, pp. 343-358 https://doi.org/10.1016/S0140-7007(98)00003-6
  4. Gordon, J. M., Ng K. C., and Chua, H. T., 1995, 'Centrifugal Chilers: Thermodynamic Modelling and a Diagnostic Case Study,' Int. J. Refrig., Vol. 18, No. 4, pp. 253-257 https://doi.org/10.1016/0140-7007(95)96863-2
  5. Ng, K. C., Bong, T. Y., and Chua, H. T., 1994, 'Performance Evaluation of Centrifugal Chillers in an Air-Conditioning Plant with the Building Automation System(BAS),' Proc. Instn. Mech. Engrs., Vol. 208, pp. 249-255 https://doi.org/10.1243/PIME_PROC_1994_208_045_02
  6. 장영수, 신영기, 김영일, 백영진, 2001, '현장에서 운전중이 터보냉동기의 성능 측정과 전력 소비량 예측,' 대한기계학회논문집 B, Vol. 25, No. 12, pp. 1730-1738
  7. Beyene A., Guven, H., Jawdat Z., and Lowrey, P., 1994, 'Conventional Chiller Performances Simulation and Field Data,' Int. J. Energy Research, Vol. 18, pp. 391-399
  8. Klein, S. J. and McClintock, F. A., 1953, 'Describing Uncertainties in Single Sample Experiments,' Mech. Eng., Vol. 75, pp. 3-8
  9. Alefeld, G., 1987, 'Efficiency of Compressor Heat Pumps and Refrigerator Derived from the Second Law of Thermodynamics,' Int. J. Refrig., Vol. 10, pp. 331-341 https://doi.org/10.1016/0140-7007(87)90119-8
  10. Liang, H., Kurhn, T. H., 1991, 'Irreversibility Analysis of a Water-to-Water Mechanical-Compression Heat Pump,' Energy, Vol. 16, No. 6, pp. 883-896 https://doi.org/10.1016/0360-5442(91)90039-O
  11. Wang, S., 1998, 'Dynamic Simulation of a Building Central Chilling System and Evaluation of EMCS On-Line Control Strategies,' Building and Environment, Vol. 33, No. 1, pp. 1-20 https://doi.org/10.1016/S0360-1323(97)00019-X