Thermoeconomic optimization of an ice thermal storage system for gas turbine inlet cooling

Sanaye, Sepehr; Fardad, Abbasali; Mostakhdemi, Masoud

doi:10.1016/j.energy.2010.12.002

Cited by 59 publications

(29 citation statements)

References 14 publications

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“…Expressions for specific physical and chemical exergy can be written, considering a gas-like flow behavior, are as follows [6,7,28,29]: (22) Here, eph denotes specific physical exergy (kJ/kg), ech specific chemical exergy (kJ/kg), ech,i specific chemical exergy of component i of fuel (kJ/kg), To the reference environment temperature (taken here to be 298.15 K), and Po the reference environment pressure (taken here to be 101.3 kPa).…”

Section: Exergy Analysis Of Gas Turbinementioning

confidence: 99%

“…In a study of gas turbine cycle performance, Bassily demonstrated that reducing the compressor inlet temperature by evaporative chilling elevated the cycle efficiency by 3.5%, and that evaporative cooling and heat recovery in the compressor outlet (after-cooling) as well as input air cooling by evaporative chilling increased the cycle output by 16% and the power by 110 kW [21]. Sanaye et al investigated several methods for input air cooling in gas turbines with capacities of 25-100 MW and found that using thermal energy storage increased plant output power by 3.9%-25.7% and efficiency by 2.1%-5.2% [22]. Farzaneh-Gord and Deymi-Dashtebayaz showed for gas turbines at Khangiran power plant located in the south of Iran that reducing the compressor inlet temperature from 25 to 4 °C can increase gas cycle efficiency by 1.5% to 5% for about 10 months of the year [23].…”

Section: Introductionmentioning

confidence: 99%

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Exergy, Economic and Environmental Analyses of Gas Turbine Inlet Air Cooling with a Heat Pump Using a Novel System Configuration

2015

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Gas turbines incur a loss of output power during hot seasons due to high ambient air temperatures, and input air cooling systems are often used to partly offset this problem. Here, results are reported for an investigation of the utilization of a heat pump to cool the inlet air of a gas turbine compressor. The analyses are carried out for two climates: the city of Yazd, Iran, which has a hot, arid climate, and Tehran, Iran, which has a temperate climate. The heat pump input power is obtained from the gas turbine. The following parameters are determined, with and without the heat pump: net output power, first and second law efficiencies, quantities and costs of environmental pollutants, entropy generation and power generation. The results suggest that, by using the air-inlet cooling system, the mean output power increases during hot seasons by 11.5% and 10% for Yazd and Tehran, respectively, and that the costs of power generation (including pollution costs) decrease by 11% and 10% for Yazd and Tehran, respectively. Also, the rate of generation of pollutants such as NOx and CO decrease by about 10% for Yazd and 35% for Tehran, while the average annual entropy generation rate increases by 9% for Yazd and 7% for Tehran, through air-inlet cooling. The average increase of the system first law efficiency is 2% and of the system second law efficiency is 1.5% with the inlet-air cooling system. OPEN ACCESSSustainability 2015, 7 14260

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Section: Exergy Analysis Of Gas Turbinementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Exergy, Economic and Environmental Analyses of Gas Turbine Inlet Air Cooling with a Heat Pump Using a Novel System Configuration

2015

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“…The unit cost of generated electricity (c elec ) as well as the fuel unit cost (c f ) is considered to be 0.06 US$ kWh À1 and 0.004 US$ MJ À1 (0.12 US$ m À3 ), respectively [48,49]. Furthermore, the unit damage cost of carbon monoxide ðc CO Þ, nitrogen monoxide ðc NOx Þ, and carbon dioxide emissions ðc CO2 Þ are assumed to be 0.02086 US$ kg À1 CO, 6.853 US$ kg À1 NO x , and 0.0224 US$ kg À1 CO 2 , respectively [50,51].…”

Section: Case Studymentioning

confidence: 99%

Thermal–economic–environmental analysis and multi-objective optimization of an internal-reforming solid oxide fuel cell–gas turbine hybrid system

Shirazi

Aminyavari

Najafi

et al. 2012

International Journal of Hydrogen Energy

168

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“…In discharging cycle, the pump sends the chilled water passing through pipes located inside the ice storage tank toward AHU unit to provide the required cooling load for the building. In this state, the total heat transfer coefficient, heat transfer surface area and the air pressure drop inside AHU can be computed using relations presented by (Sanaye et al, 2011).…”

Section: -1-3-discharging Cycle Of Ites Full and Partial Operating Mmentioning

confidence: 99%

Ice thermal energy storage (ITES) for air-conditioning application in full and partial load operating modes

Sanaye

Hekmatian

2016

International Journal of Refrigeration

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One method for reducing electricity consumption in an air-conditioning (AC) system is using ice thermal energy storage (ITES) system. ITES systems are divided into two categories, full and partial operating modes (FOM and POM). In this study, an AC with ITES system is first modeled and analyzed in energy, exergy, economic and environmental (4E) aspects in two full and partial load operating modes. Multi-objective optimization technique and Genetic Algorithm were used for computing the optimum values of design parameters. Exergy efficiency and total annual cost were considered as two objective functions in multi-objective optimization. The comparison of ITES system in full and partial operating modes with that for traditional system showed reduction in electricity consumption (11.83% for FOM and 10.23% for POM) due to the fact that ITES system produced just as much as cooling load was required. Additionally switching electricity consumption from on-peak to off-peak hours caused a reduction in electricity consumption cost (32.65% for FOM and 13.45% for POM).Absolute humidity (kg water vapor dry air)

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Thermoeconomic optimization of an ice thermal storage system for gas turbine inlet cooling

Cited by 59 publications

References 14 publications

Exergy, Economic and Environmental Analyses of Gas Turbine Inlet Air Cooling with a Heat Pump Using a Novel System Configuration

Exergy, Economic and Environmental Analyses of Gas Turbine Inlet Air Cooling with a Heat Pump Using a Novel System Configuration

Thermal–economic–environmental analysis and multi-objective optimization of an internal-reforming solid oxide fuel cell–gas turbine hybrid system

Ice thermal energy storage (ITES) for air-conditioning application in full and partial load operating modes

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