Utilisation of waste heat from the power plant by use of the ORC aided with bleed steam and extra source of heat

Mikielewicz, Dariusz; Wajs, Jan; Ziółkowski, Paweł; Mikielewicz, Jarosław

doi:10.1016/j.energy.2015.12.106

Cited by 52 publications

(15 citation statements)

References 19 publications

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“…Advanced exergetic analyses have focused on the ORC cycle, taking into account the advantage of adapting this cycle to another thermal system for different applications, such as waste heat recovery [22], thermodynamic optimization [23], and emergy analysis [24]. Also, several works have combined these studies to obtain improvement potentials.…”

Section: Introductionmentioning

confidence: 99%

Advance Exergo-Economic Analysis of a Waste Heat Recovery System Using ORC for a Bottoming Natural Gas Engine

2020

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This manuscript presents an advanced exergo-economic analysis of a waste heat recovery system based on the organic Rankine cycle from the exhaust gases of an internal combustion engine. Different operating conditions were established in order to find the exergy destroyed values in the components and the desegregation of them, as well as the rate of fuel exergy, product exergy, and loss exergy. The component with the highest exergy destroyed values was heat exchanger 1, which is a shell and tube equipment with the highest mean temperature difference in the thermal cycle. However, the values of the fuel cost rate (47.85 USD/GJ) and the product cost rate (197.65 USD/GJ) revealed the organic fluid pump (pump 2) as the device with the main thermo-economic opportunity of improvement, with an exergo-economic factor greater than 91%. In addition, the component with the highest investment costs was the heat exchanger 1 with a value of 2.769 USD/h, which means advanced exergo-economic analysis is a powerful method to identify the correct allocation of the irreversibility and highest cost, and the real potential for improvement is not linked to the interaction between components but to the same component being studied.

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Section: Introductionmentioning

confidence: 99%

Advance Exergo-Economic Analysis of a Waste Heat Recovery System Using ORC for a Bottoming Natural Gas Engine

2020

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“…The heat in the exhaust flue gas can be used to preheat feedwater by a low-pressure economizer [5][6][7] and pre-dry brown coal [8][9][10][11]. The waste heat of exhaust flue gas can also be used to drive an organic Rankine cycle to produce electric power [5,[12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Waste Heat Recovery from Fossil-Fired Power Plants by Organic Rankine Cycles

Liu¹

2020

Organic Rankine Cycles for Waste Heat Recovery - Analysis and Applications

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More than 60% of the world's electricity is still produced from fossil-fired power plants. Recovering heat from flue gas, drained water, and exhaust steam which are discharged in power plants by organic Rankine cycles (ORCs) to generate power is an efficient approach to reduce fossil fuel consumption and greenhouse gas emissions. This chapter proposes conceptual ORC systems for heat recovery of drain from continuous blowdown systems, exhaust flue gas from boilers, and exhaust steam from turbines. The waste heat source temperatures range from 30 to 200°C. Environmentally friendly and nonflammable working fluids including R134a,

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“…In order to limit the consumption of fresh water, it is advantageous to use condensation systems for cooling down the flue gases coming from the combustion of lignite due to high moisture content. As shown in [1,2,3,4], the use of condensing heat exchangers enables recovery of a large flux of waste heat and reduces the emission of the pollutants. In Poland, the first condensing heat exchanger for recovery of waste heat from flue gases was built in the Białystok S.A. combined heat and power plant in 2015.…”

Section: Introductionmentioning

confidence: 99%

The impact of the condensation process on the degree of cleaning of flue gases from acidic compounds

2018

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The paper presents studies on the impact of the process of condensation of water vapour on the process of cleaning of flue gases from acidic compounds. The measurements were carried out on a pilot-scale plant for waste heat recovery from flue gases, taking into account the process of condensation of the water vapour contained in them. The plant was connected to a lignite-fired power unit with a capacity of 360 MW located at PGE GiEK S.A., Bełchatów Power Plant Branch. The impact of the condensation of water vapour on the reduction of sulphur, chlorine and fluorine forming acidic compounds was examined. The studies show that the condensation process is conducive to removal of acidic compounds from flue gases.

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Utilisation of waste heat from the power plant by use of the ORC aided with bleed steam and extra source of heat

Cited by 52 publications

References 19 publications

Advance Exergo-Economic Analysis of a Waste Heat Recovery System Using ORC for a Bottoming Natural Gas Engine

Advance Exergo-Economic Analysis of a Waste Heat Recovery System Using ORC for a Bottoming Natural Gas Engine

Waste Heat Recovery from Fossil-Fired Power Plants by Organic Rankine Cycles

The impact of the condensation process on the degree of cleaning of flue gases from acidic compounds

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