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http://dx.doi.org/10.6110/KJACR.2015.27.5.233

Operating Number Control of Compressors Based on Cooperative Logic for a High Efficiency Centrifugal Water Chiller  

Jeong, Seok-Kwon (Dept. of Refrigeration and Air-Conditioning Engineering, Pukyong National University)
Lim, Seung-Kwan (Graduate School of Refrigeration and Air-Conditioning Eng. Pukyong National University)
Ryu, Keon-Su (Hi Air Korea R&D Center)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.27, no.5, 2015 , pp. 233-240 More about this Journal
Abstract
This paper discusses compressors operating number control strategy using cooperative logic to cope with variable partial load for high efficiency of a centrifugal water chiller. The cooperative logic is composed of a speed-up and speed-down controller, enabling smooth operation of compressors and equivalent distribution of thermal load in each compressor. This centrifugal water chiller design can be operated with high efficiency without incurring excessive energy waste and large transient phenomena at partial load states. Simulations in MATLAB and experiments in a real chiller system were conducted and verified the high efficiency control of a centrifugal water chiller achieved by the suggested strategy.
Keywords
Centrifugal water chiller; Operating number control; Cooperative logic; Speed-up and speed-down controller;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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