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thermodynamic and thermoeconomic optimization of an absorption refrigeration system integrated with refinery crude oil furnace
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نویسنده
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tavakoli mehdi ,shakib ehsan ,amidpour majid ,ghafurian mohammad mustafa
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منبع
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gas processing journal - 2019 - دوره : 7 - شماره : 1 - صفحه:1 -14
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چکیده
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In the present study, exhaust gases from tehran refinery crude oil furnace are used in a heat recovery steam generator (hrsg)for generating steam. then, the steam is directed to a double effect absorption refrigeration cycle to produce cooling. to meet the object, mass and energy balance equations of the coupling is carried out for both the hrsg and the absorption chiller and unknown thermodynamic parameters of the system are evaluated. afterward, by conducting exergy analysis and using the thermoeconomic method, the cost of the product (refrigeration here) is calculated. finally, optimization is accomplished simultaneously on both hrsg and absorption chiller in order to minimize the cooling cost by the means of a genetic algorithm. the outcomes indicate that by using the optimized integrated system 5627 tons of refrigeration is obtainable at the price of 0.0104 (usd per second). since the flue gas was wasting to environment pricelessly, it should be noted that by implementing the proposed coupling 1.186×10^7cubic meter of natural gas with the price of 1.508×10^6(usd) will be saved annually.
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کلیدواژه
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heat recovery steam generator (hrsg) ,double effect absorption chiller exergy analysis ,thermoeconomic optimization ,genetic algorithm
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آدرس
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islamic azad university, sciences and research branch, iran, bozorgmehr university of qaenat, department of mechanical engineering, iran, k.n. toosi university of technology, faculty of mechanical engineering, iran, ferdowsi university of mashhad, iran
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پست الکترونیکی
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m.m.ghafoorian@mail.um.ac.ir
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Authors
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