Thermodynamic analysis of a combined gas turbine, ORC cycle and absorption refrigeration for a CCHP system. (25th January 2017)

• Record Type: Journal Article
• Authors: Mohammadi, Amin; Kasaeian, Alibakhsh; Pourfayaz, Fathollah; Ahmadi, Mohammad Hossein
• Is Part Of: Applied thermal engineering. Volume 111(2017:Jan.)
• Page Start: 397
• Page End: 406
• Publication Date: 2017-01-25
• Subjects: Gas turbine -- ORC cycle -- Ammonia-water refrigeration -- Energy analysis; Heat engineering -- Periodicals; Heating -- Equipment and supplies -- Periodicals; Periodicals; 621.40205
• DOI: 10.1016/j.applthermaleng.2016.09.098
• Languages: English
• ISSNs: 1359-4311

Abstract

Highlights: Thermodynamic analysis of a hybrid CCHP system. Sensitivity analysis is performed on the most important parameters of the system. Pressure ratio and gas turbine inlet temperature are the most effective parameters. Abstract: Hybrid power systems are gained more attention due to their better performance and higher efficiency. Widespread use of these systems improves environmental situation as they reduce the amount of fossil fuel consumption. In this paper a hybrid system composed of a gas turbine, an ORC cycle and an absorption refrigeration cycle is proposed as a combined cooling, heating and power system for residential usage. Thermodynamic analysis is applied on the system. Also a parametric analysis is carried out to investigate the effect of different parameters on the system performance and output cooling, heating and power. The results show that under design conditions, the proposed plant can produce 30 kW power, 8 kW cooling and almost 7.2 ton hot water with an efficiency of 67.6%. Moreover, parametric analysis shows that pressure ratio and gas turbine inlet temperature are the most important and influential parameters. After these two, ORC turbine inlet temperature is the most effective parameter as it can change both net output power and energy efficiency of the system.