Performance Improvements of a Natural Gas Injection Station Using Gas Turbine Inlet Air Cooling

Abstract

Gas Turbine (GT) performance seriously deteriorates at increased ambient temperature. This study analyses the possibility of improving GT power output and efficiency by installing a gas turbine inlet air cooling system. Different cooling systems were analyzed and preliminary cost evaluations for each system were carried out. The following three cooling systems were considered in detail: a) Traditional compression cooling system; b) Absorption single-acting cooling system using a solution of lithium bromide; c) Absorption double-acting cooling system using a solution of lithium bromide. Results clearly indicate that there is a great potential for GT performance enhancement by application of an Inlet Air Cooling (IAC). Technical and economical analyses lead to selection of a particular type of IAC for significant savings in capital outlay, operational and maintenance costs and other additional advantages.

Energetic and exergetic performance analyses of a combined heat and power plant with absorption inlet cooling and evaporative aftercooling

“…De Lucia et al [4] reported that evaporative inlet cooling could enhance the power produced by 2e4% per year depending on the weather. Ameri et al [5] applied fog type air cooling system for a gas turbine plant where the climatic conditions; the dew point temperature 31e39 C and relative humidity between 5 and 15% are suitable.…”

Thermodynamic performance assessment of an indirect intercooled reheat regenerative gas turbine cycle with inlet air cooling and evaporative aftercooling of the compressor discharge

“…De Lucia et al (1995) reported that evaporative cooling could enhance the power produced, by 2-4% per year depending on the weather. De Lucia et al (1997) concluded that evaporative cooling is economical and simple, and suitable for only dry hot climates. Bartolini and Salvi (1997) reported an 8% increase in power and 4% increase in thermal efficiency of steam-injected gas turbines when cooling the inlet air using absorption chiller.…”

Simulation of a GEF5 Gas Turbine Power Plant Using Fog Advanced Cycle and a Systematic Approach to Calculate Critical Relative Humidity

“…Evaporative cooling systems, because of its low initial investment costs and simplicity of installation, are the most economical cooling methods in hot and dry regions [17][18]. De Lucia et al [19] presented that atmospheric conditions can promote the generated power by 2-4%. Chaker et al [20] studied the maximum hours that an evaporative cooling system can operate in 122 different locations.…”