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Optimization of Cogeneration Power Plant Operation Coupled with Heat Storage Tank Used for District Heating of Zagreb Area, Croatia (CROSBI ID 599007)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Katulić, Stjepko ; Čehil, Mislav ; Bogdan, Željko Optimization of Cogeneration Power Plant Operation Coupled with Heat Storage Tank Used for District Heating of Zagreb Area, Croatia // CD proceedings of 7th Conference on Sustainable Development of Energy, Water and Environment Systems – SDEWES Conference. Ohrid, Macedonia, 2012.. 2012

Podaci o odgovornosti

Katulić, Stjepko ; Čehil, Mislav ; Bogdan, Željko

engleski

Optimization of Cogeneration Power Plant Operation Coupled with Heat Storage Tank Used for District Heating of Zagreb Area, Croatia

Cogeneration power plant is used for simultaneous production of thermal and electrical energy which, when compared with separate production of thermal and electrical energy where large amount of waste heat is lost into the environment, results in high level of power plant efficiency and therefore helps reduce fuel consumption and greenhouse gas emissions. Implementation of the thermal storage tank to the cogeneration power plant allows separate production of thermal and electrical energy, greater thermal production capacity of the plant and increased production of electrical energy during its higher price. In this paper, using MATLAB software package, a mathematical model and optimization of a real power plant performance was made. Power plant consists of three production blocks which two of them work with gas and one with heavy oil as a fuel. The main goal of optimization was to satisfy the hourly-based variable heat demand and to maximize electricity sale profit. Calculation was made for a period of 72 hours. Performance of the power plant with a thermal storage tank capacities from 200 MWh to 800 MWh is discussed in this paper. Presented results show that the optimum capacity of the thermal storage tank, from the power plant guidance aspect, is 670 MW and in that case the thermal storage tank is loaded mostly during the period when the electricity price is low and is discharged when the electricity price is high. For an installed thermal storage tank capacity which is less than optimal, profit from electricity sale declines.

Energy Efficiency; Energy Storage; Heat Storage Tank; Optimization

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Podaci o prilogu

2012.

objavljeno

Podaci o matičnoj publikaciji

CD proceedings of 7th Conference on Sustainable Development of Energy, Water and Environment Systems – SDEWES Conference. Ohrid, Macedonia, 2012.

Podaci o skupu

7th Conference on Sustainable Development of Energy, Water and Environment Systems - SDEWES

predavanje

01.07.2012-07.07.2012

Ohrid, Sjeverna Makedonija

Povezanost rada

Strojarstvo