Innovative inlet air cooling technology for gas turbine power plants using integrated solid desiccant and Maisotsenko cooler

Saghafifar, Mohammad; Gadalla, Mohamed

doi:10.1016/j.energy.2015.05.035

Cited by 80 publications

(26 citation statements)

References 40 publications

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“…In order to conduct the LCOE analysis, annual evaluation of the plants must be carried out. Annual analysis provides an interesting set of information since gas turbine performances are strongly dependent on the ambient air temperature . Additionally, humid air turbine cycles, which include HABC and MBC configurations presented in this paper, are affected by the variation in the ambient air relative humidity .…”

Section: Resultsmentioning

confidence: 99%

“…Annual analysis provides an interesting set of information since gas turbine performances are strongly dependent on the ambient air temperature. 73 Additionally, humid air turbine cycles, which include HABC and MBC configurations presented in this paper, are affected by the variation in the ambient air relative humidity. 2 Therefore, annual analysis can give us valuable information, in particular, for a hot and humid climate such as UAE.…”

Section: Levelized Cost Of Electricity (Lcoe)mentioning

confidence: 99%

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A critical assessment of thermo‐economic analyses of different air bottoming cycles for waste heat recovery

Saghafifar

Gadalla

2018

Int J Energy Res

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Summary Steam turbine cycle's low operating temperature makes it suitable for waste heat recovery applications. Even though conventional combined cycles, ie, topping gas turbine and bottoming steam turbine cycles, are thermodynamically efficient, they are not the most economical alternatives for power generation with capacities less than 50 MWe. A recently proposed alternative is to utilize a bottoming gas turbine cycle in form of an air bottoming cycle. In this study, an overview of air bottoming cycle is presented. Based on the discussed studies, it is decided to further evaluate the merits of water injection in the bottoming cycle air stream by using either a humidifier or an air saturator. Thermo‐economic analysis and optimization are performed to evaluate simple and water injected air bottoming cycles against steam bottoming cycles. Results indicate that conventional combined cycles can achieve the highest thermal efficiency of about 48%. While water injected air bottoming cycle with air saturator is the most cost effective combined cycle configuration and most efficient air bottoming cycle with levelized cost of electricity and energy efficiency of 64.41 US$/MWh and 39%–40%, respectively, followed by the water injected air bottoming cycle with humidifier and simple air bottoming cycle with reported levelized cost of electricity of 65.75 US$/MWh, 66.36 US$/MWh, respectively. Steam bottoming cycle has the highest levelized cost of electricity of 68.88 US$/MWh.

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Section: Resultsmentioning

confidence: 99%

Section: Levelized Cost Of Electricity (Lcoe)mentioning

confidence: 99%

A critical assessment of thermo‐economic analyses of different air bottoming cycles for waste heat recovery

Saghafifar

Gadalla

2018

Int J Energy Res

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“…• Data center AC [11,13,35] • Turbine inlet air cooling [25,36,37] • Museum AC [15,16,38,39] • Ships and marine AC [40,41] • Storage of machinery, pharmacy, artifact, and electronic devices [42] Lots of research have been conducted worldwide in order to establish low-cost energy-efficient AC system for above-mentioned AC applications. Therefore, many systems have been resulted suitable depending upon the nature of AC application, availability of low-cost energy type, economics, efficiency, and sustainability.…”

Section: Miscellaneous Applicationsmentioning

confidence: 99%

“…In the twenty-first century, lots of energy-efficient and low-cost AC systems have been studied, designed, developed and are under practice for various AC applications, for example, data center [11][12][13], museums [14][15][16], hospitals [17], automobiles [18,19], wet markets [20], marine ships [21], greenhouses [22], agricultural products storage [7], animals' thermal comfort [6], industrial processes [23], electronic cooling [24], turbine inlet air cooling [25], and so on. Most of these systems are either thermally driven or based on evaporative cooling conception.…”

Section: Introductionmentioning

confidence: 99%

Energy-Efficient Air-Conditioning Systems for Nonhuman Applications

Sultan¹,

Miyazaki²

2017

Refrigeration

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In addition to humans' thermal comfort, air-conditioning (AC) could be required for various nonhuman applications, for example, animals' AC, greenhouse AC, food storage and transportation, industrial processes, and so on. In this regard, optimum conditions of air temperature and humidity are explored and compared on psychrometric charts. Thermodynamic limitations of existing AC systems are discussed from the subject point of view. Consequently, four kinds of low-cost energy-efficient AC systems, namely: (i) direct evaporative cooling (DEC), (ii) indirect evaporative cooling (IEC), (iii) Maisotsenko cycle (M-Cycle) evaporative cooling (MEC), and (iv) desiccant AC (DAC), are investigated for climatic conditions of two cities, that is, Multan (Pakistan) and Fukuoka (Japan). In addition, systems' fundamentals and principles are explained by means of schematic diagrams and basic heat/mass transfer relationships. According to the results, performance of all systems is influenced by ambient air conditions; therefore, a particular AC system cannot provide optimum AC for all nonhuman applications. However, one or other AC system can successfully provide desired conditions of temperature and relative humidity. It has been concluded that evaporative cooling systems provide low-cost AC for dry climates, whereas DAC system is found energy efficient and viable for humid climates.

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“…Solid desiccants are compact and less corrosive. On the other hand, liquid desiccant offer several benefits, including, lower regeneration temperature, lower pressure drop of air across the desiccant material, suitability for dust removal by filtration, and flexibility in utilisation especially when handling large volumes of air [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Solar pond powered liquid desiccant evaporative cooling

Elsarrag

Igobo

Alhorr

et al. 2016

Renewable and Sustainable Energy Reviews

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Liquid desiccant cooling systems (LDCS) are energy efficient means of providing cooling, especially when powered by low-grade thermal sources. In this paper, the underlying principles of operation of desiccant cooling systems are examined, and the main components (dehumidifier, evaporative cooler and regenerator) of the LDCS are reviewed. The evaporative cooler can take the form of direct, indirect or semi-indirect. Relative to the direct type, the indirect type is generally less effective. Nonetheless, a certain variant of the indirect type -namely dew-point evaporative cooler -is found to be the most effective amongst all. The dehumidifier and the regenerator can be of the same type of equipment: packed tower and falling film are popular choices, especially when fitted with an internal heat exchanger. The energy requirement of the regenerator can be supplied from solar thermal collectors, of which a solar pond is an interesting option especially when a large scale or storage capability is desired.

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Innovative inlet air cooling technology for gas turbine power plants using integrated solid desiccant and Maisotsenko cooler

Cited by 80 publications

References 40 publications

A critical assessment of thermo‐economic analyses of different air bottoming cycles for waste heat recovery

A critical assessment of thermo‐economic analyses of different air bottoming cycles for waste heat recovery

Energy-Efficient Air-Conditioning Systems for Nonhuman Applications

Solar pond powered liquid desiccant evaporative cooling

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