Two-Stage Evaporative Inlet Air Gas Turbine Cooling

Gas turbine inlet air-cooling (TIAC) is an established technology for augmenting gas turbine output and efficiency, especially in hot regions. TIAC using evaporative cooling is suitable for hot, dry regions; however, the cooling is limited by the ambient wet-bulb temperature. This study investigates...

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Main Author: Obida Zeitoun
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/14/5/1382
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author Obida Zeitoun
author_facet Obida Zeitoun
author_sort Obida Zeitoun
collection DOAJ
description Gas turbine inlet air-cooling (TIAC) is an established technology for augmenting gas turbine output and efficiency, especially in hot regions. TIAC using evaporative cooling is suitable for hot, dry regions; however, the cooling is limited by the ambient wet-bulb temperature. This study investigates two-stage evaporative TIAC under the harsh weather of Riyadh city. The two-stage evaporative TIAC system consists of indirect and direct evaporative stages. In the indirect stage, air is precooled using water cooled in a cooling tower. In the direct stage, adiabatic saturation cools the air. This investigation was conducted for the GE 7001EA gas turbine model. Thermoflex software was used to simulate the GE 7001EA gas turbine using different TIAC systems including evaporative, two-stage evaporative, hybrid absorption refrigeration evaporative and hybrid vapor-compression refrigeration evaporative cooling systems. Comparisons of different performance parameters of gas turbines were conducted. The added annual profit and payback period were estimated for different TIAC systems.
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spelling doaj.art-ff12b5e646b24ae2a11744a00f1aba372023-12-03T12:20:02ZengMDPI AGEnergies1996-10732021-03-01145138210.3390/en14051382Two-Stage Evaporative Inlet Air Gas Turbine CoolingObida Zeitoun0Mechanical Engineering Department, College of Engineering, King Saud University, Riyadh 11421, Saudi ArabiaGas turbine inlet air-cooling (TIAC) is an established technology for augmenting gas turbine output and efficiency, especially in hot regions. TIAC using evaporative cooling is suitable for hot, dry regions; however, the cooling is limited by the ambient wet-bulb temperature. This study investigates two-stage evaporative TIAC under the harsh weather of Riyadh city. The two-stage evaporative TIAC system consists of indirect and direct evaporative stages. In the indirect stage, air is precooled using water cooled in a cooling tower. In the direct stage, adiabatic saturation cools the air. This investigation was conducted for the GE 7001EA gas turbine model. Thermoflex software was used to simulate the GE 7001EA gas turbine using different TIAC systems including evaporative, two-stage evaporative, hybrid absorption refrigeration evaporative and hybrid vapor-compression refrigeration evaporative cooling systems. Comparisons of different performance parameters of gas turbines were conducted. The added annual profit and payback period were estimated for different TIAC systems.https://www.mdpi.com/1996-1073/14/5/1382gas turbineinlet coolingtwo-stageevaporative cooling
spellingShingle Obida Zeitoun
Two-Stage Evaporative Inlet Air Gas Turbine Cooling
Energies
gas turbine
inlet cooling
two-stage
evaporative cooling
title Two-Stage Evaporative Inlet Air Gas Turbine Cooling
title_full Two-Stage Evaporative Inlet Air Gas Turbine Cooling
title_fullStr Two-Stage Evaporative Inlet Air Gas Turbine Cooling
title_full_unstemmed Two-Stage Evaporative Inlet Air Gas Turbine Cooling
title_short Two-Stage Evaporative Inlet Air Gas Turbine Cooling
title_sort two stage evaporative inlet air gas turbine cooling
topic gas turbine
inlet cooling
two-stage
evaporative cooling
url https://www.mdpi.com/1996-1073/14/5/1382
work_keys_str_mv AT obidazeitoun twostageevaporativeinletairgasturbinecooling