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DEVELOPMENT OF A SYSTEM FOR COOLING INLET AIR FOR GAS TURBINE USING CHILLED WATER

RAZALI, MOHD SAIFUL IZW AN (2011) DEVELOPMENT OF A SYSTEM FOR COOLING INLET AIR FOR GAS TURBINE USING CHILLED WATER. Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

The strong influence of climate on gas turbine behavior is well known. The output of gas turbine falls to a value that is less than the rated output under high temperature conditions that often occur during the daylight. In Malaysia, during daylight ambient temperature varies from 23°C to 38°C. This temperature is relatively high. Cooling of the turbine air intake can increase output power substantially. This is because cooled air is denser, giving the turbine higher mass flow rate and resulting in decreasing compressor specific work and specific fuel consumption. In order to maintain inlet air at constant low temperature, an air cooling system is required to be developed at the air intake of gas turbine. A lot of researches have been done proved that by cooling the air at inlet gas turbine will increase the efficiency of gas turbine. The gas turbine engine at Gas District Cooling Plant (GOC) plant in Universiti Teknologi PETRONAS (UTP) has an advantage due to availability of a chilled water system that is produced by cogeneration plant. Heat from gas turbine exhaust is recovered to produce chilled water by the steam absorption chiller (SAC). The chilled water is then distributed to the academic building at a temperature of 6°C by pipeline into the air handling unit (AHU) in every building at UTP for air conditioning purpose and return back to GDC at a temperature of l3°C. This study analyzed the power requirement by the cooling system, the material used, sizing and feasibility of new cooling system. Mathematical equations have been developed. The air cooling system consist of 83 units of copper tubes 19.05 mm outer diameter and 77.26 m length for each tube. A 0.35 kW pumping power is required to circulate 11.72 kgls mass flowrate of chilled water through the system to cool 19 kgls mass flowrate of air from variable high temperature to 20°C.

Item Type: Final Year Project
Academic Subject : Academic Department - Mechanical Engineering - Materials - Engineering materials - Polymers - Processing
Subject: T Technology > TJ Mechanical engineering and machinery
Divisions: Engineering > Mechanical
Depositing User: Users 2053 not found.
Date Deposited: 07 Nov 2013 12:21
Last Modified: 25 Jan 2017 09:42
URI: http://utpedia.utp.edu.my/id/eprint/10255

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