Rational Designing of Gas Turbine Inlet Air Cooling System

Author(s):  
Andrii Radchenko ◽  
Lukasz Bohdal ◽  
Yang Zongming ◽  
Bohdan Portnoi ◽  
Veniamin Tkachenko
Author(s):  
Maurizio De Lucia ◽  
Ennio Carnevale ◽  
Massimo Falchetti ◽  
Alberto Tesei

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.


2017 ◽  
Vol 43 ◽  
pp. 22-32 ◽  
Author(s):  
Mohamed Bin Shams ◽  
E.M. Elkanzi ◽  
Zakareya Ramadhan ◽  
Sadiq Rahma ◽  
Mohamed Khamis

Author(s):  
T. Tanaka ◽  
A. Ishikawa ◽  
K. Aoyama ◽  
K. Kishimoto ◽  
Y. Yoshida ◽  
...  

Gas turbine performance, especially power output and efficiency, is strongly dependent on ambient air temperature. Gas Turbine Inlet Air Cooling (GTIAC) has the effect of enhancing gas turbine capacity during peak hours in summer season. This paper presents an unique GTIAC system with liquid air, which will produce and store liquid air during off peak periods and spray it directly into the compressor inlet during peak hours. In the summer of 1996, an experimental study using a 150MW base load gas turbine was successfully performed on Chita Power Station to prove this new GTIAC performance. Test results show that the new GTIAC has a big advantage of increasing gas turbine capacity flexibly and economically for peak demands or emergencies.


2013 ◽  
Vol 75 ◽  
pp. 214-223 ◽  
Author(s):  
Hany A. Al-Ansary ◽  
Jamel A. Orfi ◽  
Mohamed E. Ali

Author(s):  
John Confurius

The profits that can be gained by use of inlet air cooling on gas turbines has been recognised for quite some time now and the systems installed throughout the world have shown the users in the gas turbine field that cooling indeed can be used to boost power at times when the ambient temperature reaches or exceeds the ISO rating temperature of the gas turbine. Drawback however being that the initial investment asked of the gas turbine user is rather large thus only justifying a cooling system in regions where the outdoor temperatures exceed the ISO rating time and again due to the climate in that region. Lately gas turbine users in colder climates have become interested in power augmentation during their short summer, however there is no justification for an investment like necessary when installing one of the presently available systems on the market. As the question reached us from more and more of our clients it stimulated us to go out and search for a low-investment solution to this problem. This resulted in the world’s first low pressure gas turbine inlet cooling system.


2018 ◽  
Vol 225 ◽  
pp. 01020
Author(s):  
Thamir K. Ibrahim ◽  
Mohammed K. Mohammed ◽  
Omar I. Awad ◽  
Rizalman Mamat ◽  
M. Kh Abdolbaqi

A basic goal of operation management is to successfully complete the life cycle of power systems, with optimum output against minimal input. This document intends calculating both, the performance and the life cycle cost of a gas turbine fitted with an inlet air cooling mechanism. Correspondingly, both a thermodynamic and an economic model are drawn up, to present options towards computing the cooling loads and the life cycle costs. The primary observations indicate that around 120MWh of power is derived from gas turbine power plants incorporating the cooling mechanism, compared to 96.6 MWh for units without the mechanism, while the life cycle cost is lower for units incorporating the cooling process. This indicates benefits in having the mechanism incorporated in the architecture of a gas turbine.


Author(s):  
Motoaki Utamura ◽  
Isao Takehara ◽  
Nobuyuki Horii ◽  
Takaaki Kuwahara

A Moisture Air Turbine (MAT) cycle is proposed for improving the characteristics of land based gas turbine by injecting atomized water at inlet to compressor. The power boosting mechanism of MAT is understood as composits of those of following existing systems: inlet air cooling system, inter-cooling and steam injection. Experiments using a 15MW class axial flow load compressor have been carried out to reveal that water evaporation in compressor could reduce compressor work in an efficient manner. Moreover, this technology has been demonstrated by means of 130MW class simple cycle gas turbine power plant to show that a small amount of water consumption is sufficient to increase power output. Very efficient evaporation could be achieved provided the size of water droplet is controlled properly. The amount of water consumption is much less than that of conventional inlet air cooling system with cooling tower for heat rejection. Incorporating water droplet evaporation profile into consideration, realistic cycle calculation model has been developed to predict power output with water injection. It has been shown that this technology is economically achievable. It should be stressed that contrary to well known evaporative cooler, MAT cycle could provide power output at a desired value within its capability regardless of ambient humidity condition.


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