Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/191385
Title: Hybrid operating method to improve the part-load performance of gas turbine based combined cooling and power system
Authors: HUANG ZHIFENG
WAN YANGDA 
SOH KANG YANG ALEXANDER 
CHUA KIAN JON,ERNEST 
Keywords: Gas turbine
combined cooling and power (CCP) system
Operating strategy
Part-load performance
Issue Date: 15-Dec-2020
Publisher: Elsevier
Citation: HUANG ZHIFENG, WAN YANGDA, SOH KANG YANG ALEXANDER, CHUA KIAN JON,ERNEST (2020-12-15). Hybrid operating method to improve the part-load performance of gas turbine based combined cooling and power system. Energy Conversion And Management 226 : 113506. ScholarBank@NUS Repository.
Related Dataset(s): 10.1016/j.enconman.2020.113506
Abstract: Frequent partial load operation caused by fluctuating users’ demands is one of the main factors suppressing energy-saving performance of combined cooling and power systems. In order to address this lingering problem, three different operating strategies, namely, inlet guide vanes, inlet air throttling and turbine inlet temperature, are compared and adopted to alter gas turbine characteristic in order to promote the energy-saving performance of the combined cooling and power system under partial loads. The combined cooling and power system consists of a gas turbine coupled to a double-effect absorption chiller. Two insufficient cooling energy compensation modes including self-compensation and grid-compensation are also introduced to further potentially enhance the system’s performance. Key results have revealed that the inlet guide vanes operating strategy is the best option for the system and the self-compensation mode can reap more energy savings for high cooling to power ratio demands under partial load conditions. From the system side perspective, the inlet guide vanes operating strategy is able to improve 4.06% and 4.97% primary energy saving rate respectively compared to the existed inlet air throttling and turbine inlet temperature operating strategies at 50% gas turbine load. Considering the users’ demands, the inlet guide vanes operating strategy incorporating self-compensation mode improves the average primary energy saving rate of 5.81% in the typical summer day and 7.20% in typical winter day in comparison to other existed operating methods.
Source Title: Energy Conversion And Management
URI: https://scholarbank.nus.edu.sg/handle/10635/191385
ISSN: 01968904
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