The Impact of Placement-Related Effects in Air-Cooled Cooling Chillers on Energy Efficiency

被引:0
|
作者
Ozel, Burak [1 ]
Kavas, Suleyman [1 ]
机构
[1] Untes Air Conditioning Syst, TR-06520 Ankara, Turkiye
关键词
D O I
10.1051/e3sconf/202452301002
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
In air-cooled chillers, it is recommended to leave specific distances between elements such as walls surrounding the air-cooled chillers to advance heat transfer. Additionally, the positioning is an effective parameter based on the incidence of the sun, as condenser waste heat dissipation becomes more challenging due to solar radiation. Therefore, efficient-based analyses of parameters related to integrated effects need to be conducted. In this study, the flow of the chiller in a baseline geometry is examined, and the temperature of the air passing over the condenser is determined using computational fluid dynamics (CFD) analysis in the first place. Initially, the effect of the solar radiation direction is examined. Then, the wall distances and wall height around the cooling unit are parametrically defined. Different design points are identified, and a design of experiment (DOE) analysis is performed to study the integrated effect between each factor. The results are graphically visualized using the response surface method (RSM). Based on the analysis, a three-parameter layout optimization study is conducted, including the chiller-to-wall width, chiller-to-wall depth, and wall height. This way, the appropriate layout for air-cooled chiller is determined. Consequently, the impact of these parameters on efficiency and capacity is determined through flow analysis. The analyses are repeated for high-capacity chillers with condenser fans placed on top and low-capacity unit with side fans.
引用
收藏
页数:13
相关论文
共 50 条
  • [1] Optimum placement for air-cooled chillers
    Khankari, Kishor, 1600, ASHRAE (58):
  • [2] Optimum Placement For Air-Cooled Chillers
    Khankari, Kishor
    ASHRAE JOURNAL, 2016, 58 (01) : 18 - 29
  • [3] An analysis on the energy efficiency of air-cooled chillers with water mist system
    Yang, Jia
    Chan, K. T.
    Wu, Xiangsheng
    Yu, F. W.
    Yang, Xiaofeng
    ENERGY AND BUILDINGS, 2012, 55 : 273 - 284
  • [4] Evaporative cooling technologies for air-cooled chillers for building energy performance improvement
    Yu, F. W.
    Chan, K. T.
    Yang, J.
    Sit, R. K. Y.
    ADVANCES IN BUILDING ENERGY RESEARCH, 2016, 10 (01) : 10 - 19
  • [5] Improved energy performance of air-cooled chiller system with mist pre-cooling Mist improvement on air-cooled chillers
    Yu, F. W.
    Chan, K. T.
    APPLIED THERMAL ENGINEERING, 2011, 31 (04) : 537 - 544
  • [6] Parameterization study on the operating efficiency of air-cooled chillers
    Chan, KT
    Yu, FW
    ADVANCES IN BUILDING TECHNOLOGY, VOLS I AND II, PROCEEDINGS, 2002, : 1157 - 1164
  • [7] Application of direct evaporative coolers for improving the energy efficiency of air-cooled chillers
    Yu, FW
    Chan, KT
    JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME, 2005, 127 (03): : 430 - 433
  • [8] Tactics to optimize the energy efficiency of a chiller system with multiple air-cooled chillers
    Chan, K
    Yu, FW
    ENERGY AND ENVIRONMENT, VOLS 1 AND 2, 2003, : 1419 - 1424
  • [9] Enhanced performance of air-cooled chillers using evaporative cooling
    Huan, Z.
    Shijun, Y.
    Hongxing, Y.
    Jianlei, N.
    Building Services Engineering Research and Technology, 2000, 21 (04) : 213 - 217
  • [10] Modelling of improved energy performance of air-cooled chillers with mist pre-cooling
    Yu, F. W.
    Chan, K. T.
    INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2009, 48 (04) : 825 - 836