Indirect evaporative combined inlet air cooling with gas turbines for green power technology |
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| Affiliation: | 1. Department of Mechanical Engineering, Pardis Branch, Islamic Azad University, Pardis New City, Iran;2. Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran;3. Fuel Cell Research Lab (FCReL), School of Mechatronic System Engineering, Simon Fraser University, Vancouver, British Columbia, Canada;4. Department of Mechanical Engineering, Islamic Azad University, Borujerd Science and Research Branch, Borujerd, Lorestan, Iran;1. Harcourt Butler Technological Institute, Kanpur, U.P., India;2. Madan Mohan Malaviya University of Technology Gorakhpur, U.P., India;1. Department of Mechanical Engineering, Nalanda Institute of Technology, Bhubaneswar, India;2. Department of Mechanical Engineering, National Institute of Technology, Jamshedpur, India |
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| Abstract: | Different inlet air cooling systems are usually used with gas turbines. A new form of inlet air cooling called the indirect evaporative cooling system (IECS) has been investigated in this work. This system is a combination of a humidifier with a vapor compression or absorption cooling system for part of the total air i.e. the secondary air stream. The net power produced from the gas turbine on a hot day (45 °C) by using combined (IECS) with absorption chillers showed an increase in power and efficiency by 15% and 9%, respectively; its recovery period is suitable for all environmental conditions. For IECS combined with vapor compression mechanical chillers showed an increase in power and efficiency by about 7.81% and 2.24%, respectively, but its recovery period made it suitable only for hot and humid conditions. The IECS has lower chiller's capital cost by about 25% (mechanical chiller) and 40% (absorption chiller). |
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