Performance improvement of a coal gasification and combined cogeneration plant by multi-pressure steam generation

De, S. K.; Biswal, S.K.

doi:10.1016/j.applthermaleng.2003.08.010

Cited by 7 publications

(2 citation statements)

References 6 publications

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“…Reddy et al (2002) applied second law analysis for a waste HRSG which consists of an economizer, an evaporator and a super heater. Introducing multi pressure steam generation in the HRSG of a combined power plant improves the performance of the plant than that of a corresponding single pressure system (De & Biswal 2004). Pelster et al (2001) compared the results of a reference CC with the dual and triple pressure HRSGs and also with and without steam reheating models.…”

Section: Introductionmentioning

confidence: 98%

Thermodynamic modelling and optimization of a dual pressure reheat combined power cycle

Srinivas

2010

Sadhana

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Heat recovery steam generator (HRSG) plays a key role on performance of combined cycle (CC). In this work, attention was focused on a dual pressure reheat (DPRH) HRSG to maximize the heat recovery and hence performance of CC. Deaerator, an essential open feed water heater in steam bottoming cycle was located to enhance the efficiency and remove the dissolved gasses in feedwater. Each of the heating section in HRSG is solved from the local flue gas condition with an aim of getting minimum possible temperature difference. For high performance, better conditions for compressor, HRSG sections, steam reheater and deaerator are developed. The CC system is optimized at a gas turbine inlet temperature of 1400 • C due to the present available technology of modern gas turbine blade cooling systems. The exergetic losses in CC system are compared with each other. The present DPRH HRSG model has been compared and validated with the plant and published data.

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Section: Introductionmentioning

confidence: 98%

Thermodynamic modelling and optimization of a dual pressure reheat combined power cycle

Srinivas

2010

Sadhana

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“…Thus far, optimization of combined cycle power plants has been done based on changing design and performance parameters of power plants [1][2][3][4][5][6][7]. In the performed optimizations, attempts have been made to make the preformed optimizations and the resulting optimal parameters more comprehensive and more general for the system power Table I for each power plant.…”

Section: Introductionmentioning

confidence: 99%

Interaction of combined cycle power plant (CCPP) and power system at two levels of performance optimization

Mokhtari

Sarajian

2014

2014 5th Conference on Thermal Power Plants (CTPP)

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in this paper, considering two different scenarios, combined cycle power plant was optimized to reduce total system costs. In the first scenario, parameters of combined cycle power plant were optimized based on power system constraints. But, in the second scenario, they were optimized considering constraints of the power plant. Cost function of power plants includes consumable fuel price (natural gas), maintenance and repair cost and exergy destruction cost, which was fitted with a quadratic equation in this investigation. In both scenarios, combined cycle power plants were optimized by genetic algorithm based on two objective functions of total exergy efficiency of power plant and price function of generated power. The results obtained from these two scenarios showed that the second scenario introduced more optimized cost function than the first one. As a result, calculating cost function of power plant apart from the power system reduced costs of combined cycle power plant and total system and applying constraints of the power system to power plants discharged them from their optimized function and increased the costs.

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Exergetic and economic evaluation of the effect of HRSG configurations on the performance of combined cycle power plants

Mansouri

Ahmadi²,

Kaviri

et al. 2012

Energy Conversion and Management

122

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Performance improvement of a coal gasification and combined cogeneration plant by multi-pressure steam generation

Cited by 7 publications

References 6 publications

Thermodynamic modelling and optimization of a dual pressure reheat combined power cycle

Thermodynamic modelling and optimization of a dual pressure reheat combined power cycle

Interaction of combined cycle power plant (CCPP) and power system at two levels of performance optimization

Exergetic and economic evaluation of the effect of HRSG configurations on the performance of combined cycle power plants

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