Thermal performance and economic analysis of gas turbines operating in a hot climate-Kuwait
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Gas turbines are the main source of generating power in Kuwait. There are various cycles in which they operate. Open cycle gas turbines, located in the LM6000 and Frame Seven units of the Kuwait Power Plant in Subiya, Kuwait, generate a considerable amount of power for the city of Kuwait. One of the main concerns about these turbines is their overall efficiency during hot and humid weather. This paper investigates an economic method of improving the output efficiency of gas turbines in this type of climate. The efficiency of gas turbines in the Frame Seven unit at the peak air temperature and humidity was determined as 34%. Subsequently, a conceptual gas cycle was analyzed by adding a cooling system to air intake of the turbine and this increased the efficiency by of 2%. Moreover, an economic analysis supported the feasibility and cost efficiency of installing a centrifuged chiller. A thermal analysis of the suggested gas cycle was performed to study the increase in the thermal efficiency by modifying the cycle and adding a chiller to cool down the hot inlet air during the summer. The results showed that power generation improved and the cost of maintenance was reduced due to the possible damages caused by hot and humid air to the compressor blades.
Abstract
Gas turbines are the main source of generating power in Kuwait. There are various cycles in which they operate. Open cycle gas turbines, located in the LM6000 and Frame Seven units of the Kuwait Power Plant in Subiya, Kuwait, generate a considerable amount of power for the city of Kuwait. One of the main concerns about these turbines is their overall efficiency during hot and humid weather. This paper investigates an economic method of improving the output efficiency of gas turbines in this type of climate. The efficiency of gas turbines in the Frame Seven unit at the peak air temperature and humidity was determined as 34%. Subsequently, a conceptual gas cycle was analyzed by adding a cooling system to air intake of the turbine and this increased the efficiency by of 2%. Moreover, an economic analysis supported the feasibility and cost efficiency of installing a centrifuged chiller. A thermal analysis of the suggested gas cycle was performed to study the increase in the thermal efficiency by modifying the cycle and adding a chiller to cool down the hot inlet air during the summer. The results showed that power generation improved and the cost of maintenance was reduced due to the possible damages caused by hot and humid air to the compressor blades.
참고문헌 (6)
- A. Ghanim, "LM6000 Gas Turbine-Generator Package Familiarization Training Course,. GE Energy" (2008)
- G. P. Systems, "GE Frame 7 EA Gas Turbine Training" (2008)
- Y. A. Cengel, "Thermodynamics: An Engineering Approach" (2004), McGraw-Hill Education
- J. R. Simoes-Moreira, "Fundamentals of thermodynamics applied to thermal power plants" (2012), Escola Politecnica da USP
- Design Guide: Combustion Turbine Inlet Air Cooling Systems (Final Report, RP-902), "J. W. Stewart", American Society of Heating, Refrigerating and Air-Conditioning Engineers, ~ (1997)
- J. A. Ebeling, "Combustion turbine inlet air cooling alternatives and case histories", Proceedings of the 27th Annual Frontiers of Power Conference, pp.X~ (1994)