Browse > Article
http://dx.doi.org/10.9726/kspse.2014.18.2.025

Heat Transfer and Pump Consumption Power of Indirect Refrigeration System Using CO2 as a Secondary Refrigerant  

Yoon, Jung-In (Department of Refrigeration and Air-conditioning Engineering, PuKyung National University)
Choi, Kwang-Hwan (Department of Refrigeration and Air-conditioning Engineering, PuKyung National University)
Son, Chang-Hyo (Department of Refrigeration and Air-conditioning Engineering, PuKyung National University)
Yi, Wen-Bin (Department of Refrigeration and Air-conditioning Engineering, PuKyung National University, Graduate student)
Publication Information
Journal of Power System Engineering / v.18, no.2, 2014 , pp. 25-30 More about this Journal
Abstract
In this paper, the heat transfer coefficient and pump consumption power of indirect refrigeration system using $CO_2$ as a secondary refrigerant were investigated experimentally. First, from the comparison of pump consumption powers of existing brines(EG, PG, EA etc.) and $CO_2$ as secondary refrigerants at the same experimental conditions, PG and $CO_2$ show the highest and lowest power, respectively. Second, the heat transfer coefficient of $CaCl_2$ is the highest, but PG is the lowest among other secondary refrigerants. From the above results, it is confirmed that $CO_2$ as the secondary refrigerant has excellent characteristics when comparing to existing brines. Thus, it is concluded that $CO_2$ is applicable as the secondary refrigerant of indirect refrigeration system.
Keywords
$CO_2$; Secondary Refrigerant; Pump Consumption Power; Heat Transfer Coefficient;
Citations & Related Records
연도 인용수 순위
  • Reference
1 D. Hinde, S. Zha, L. Lan, 2008, "$CO_2$ Experiences in North American Supermarkets", In: Proceedings of the Eighth IIR-Gustav Lorentzen Conference on Natural Working Fluids, Copenhagen, Denmark, pp. 1098-1104.
2 S. F. Pearson, 1995, "Cooling Method and Apparatus", British Patent Number 2258298.
3 A. C. Pachai, 2004, "Experience with $CO_2$ as Refrigerant in Supermarkets", In: Proceedings of the Sixth IIR-Gustav Lorentzen Conference on Natural Working Fluids, Glasgow, United Kingdom, August 29-September 1.
4 H. Kruse, 2000, "Refrigerant Use in Europe", ASHRAE J., Vol. 42, pp. 16-25.
5 EES: Engineering Equation Solver, 2006. fChart Software Inc.
6 E. N. Sieder and G. E. Tate, 1936, "Heat Transfer and Pressure Drop of Liquids in Tubes", Industrial Engineering Chemistry, Vol. 28, pp. 1429-1435.   DOI
7 V. Gnielinski, 1976, "New Equations for Heat and Mass Transfer in Turbulent Pipe and Channel Flows", Int. Chem. Engineering, Vol. 16, pp. 359-368.
8 S. G. Kandlikar, 1990, "A General Correlation for Saturated Two Phase Flow Boiling Heat Transfer Inside Horizontal and Vertical Tubes", Journal of Heat Transfer, Vol. 112, pp. 219-228.   DOI
9 H. K. Froster and N. Zuber, 1955, Dynamics of Vapor Bullles and Boiling Heat Transfer, AICHE J., Vol. 1, pp. 531-535.   DOI
10 F. W. Dittus and L. M.. K. Boelter, 1930, University of California, Berkeley, Publications on Engineering, Vol. 2, pp. 443-448.