Exergy analysis of a solar assisted absorption cooling system on an hourly basis in villa applications

Onan, Cenk; Özkan, Derya Burcu; Erdem, Serkan

doi:10.1016/j.energy.2010.07.037

Cited by 40 publications

(17 citation statements)

References 19 publications

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“…As an example, Koroneos presented an exergy and environmental analysis for a SHC system, concluding that the exergy efficiency is low, but the environmental impact is low, too [23]. A similar work was performed by Onan et al, concluding that the exergy loss in the solar collector varies between 10% and 70%, whereas the exergy loss in the generator ranges from 5% to 8% [24]. Similarly, several papers are available in which different aspects of the exergy analysis of CPVT systems are investigated.…”

Section: Introductionmentioning

confidence: 82%

Thermoeconomic Optimization of a Renewable Polygeneration System Serving a Small Isolated Community

et al. 2015

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During the last years, special attention has been paid to renewable polygeneration technologies, able of simultaneously producing thermal, cooling, electrical energy and desalinated water from seawater. This paper focuses on an innovative polygeneration system driven by renewable energy sources, including the following technologies: hybrid photovoltaic/thermal collectors, concentrating parabolic trough (CPVT), a biomass heater, a single-stage absorption chiller and a multiple-effect distillation desalination system. The system is designed to cover the base load of an isolated small community. In previous papers, the dynamic simulation model about plant operation is discussed. In this paper, a detailed exergy, economic and environmental analysis of the plant is presented. In addition, the plant was optimized using different objective functions, applying the Design of Experiment (DoE) methodology which evaluates the sensitivity of the different objective functions with respect to the selected design parameters. The results show that an increase of the storage volume is generally negative, whereas increasing the solar field area involves an increase of the exergy destruction rate, but also an improvement of the CPVT exergy output provided; the final result is an increase of both the exergy efficiency and the economic profitability of the polygeneration system. OPEN ACCESSEnergies 2015, 8 996

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Section: Introductionmentioning

confidence: 82%

Thermoeconomic Optimization of a Renewable Polygeneration System Serving a Small Isolated Community

et al. 2015

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“…This stream and the vapor separated from GL (29) are condensed into saturated liquid in condenser. The liquid water (5) passes through V2 and is throttled to an appropriate intermediate pressure (6). Part of the liquid water evaporates into vapor in EAXE (Evaporator-absorber-exchanger evaporator), the cooling capacity supplied by EAXE is used to balance the heat rejected by EAXA.…”

Section: Cycle Descriptionmentioning

confidence: 99%

Simulation research on an EAX (Evaporator-Absorber-Exchange) absorption refrigeration cycle

Hong

Chen

Tang

et al. 2011

Energy

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“…Kuyumcu vd., güneş enerjisi destekli absorpsiyonlu soğutma sistemi ile buz pistinin soğutulmasını ele alarak teorik olarak incelemiş ve sistem parametrelerini değiştirerek gerekli olan optimum kollektör miktarını belirlemişlerdir [4]. Onan vd., güneş enerjisi destekli absorpsiyon soğutma sistemi Mardin şehrinde bulunan bir villa için tasarlamış ve farklı sıcaklıklar altında sistemin performansı MATLAB programı kullanarak analiz etmişlerdir [5]. Cimşit ve Öztürk, buhar sıkıştırmalı-absorpsiyonlu çift kademeli soğutma çevrimi tasarlamış ve çevrimin termodinamik analizini yapmışlardır.…”

Section: Introductionunclassified

Kahramanmaraş Kentinde Güneş Enerjisi Destekli Absorpsiyonlu Soğutma Sistemi Kullanılarak Bir Apartman Dairesinin Soğutulması

Kuyumcu¹,

Şahin²,

Yumrutaş³

et al. 2015

KSU J. Eng. Sci.

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ÖZET: Bu çalışmada, güneş enerjisi destekli tek etkili Su-Lityum Bromür (H2O-LiBr) karışımı kullanan absorpsiyonlu soğutma makinası kullanılarak Kahramanmaraş kentinde inşa edilmiş bir apartman dairesinin soğutulması sağlanmıştır. Çalışmada, TS 825 standartları ve Kahramanmaraş kentinin yaz hava koşulları göz önüne alınmıştır. Odalarda istenilen sabit iç ortam sıcaklığını korumak için hesaplanan soğutma enerjisi ihtiyacı, absorpsiyonlu soğutma sisteminin kolektörleri vasıtasıyla güneş enerjisinden karşılanmıştır. Hesaplamalarda Engineering Equation Solver (EES) ve Matrix Laboratory (MATLAB) programları kullanılmıştır. Apartman dairesinin soğutma enerjisi talebine göre farklı tip kolektörler (düz plakalı ve vakum tüplü kollektör) göz önüne alınarak gerekli olan kolektör yüzey alanı hesaplanmıştır.Anahtar kelimeler: Absorpsiyonlu Soğutma, Güneş Enerjisi, Güneş kolektörü, Etkinlik katsayısı. Cooling of an Apartment by Using Absorption Refrigeration System in the City of Kahramanmaraş ABSTRACT :In this study, cooling of an apartment constructed in the city of Kahramanmaraş by using solar-assisted single effect absorption refrigeration machine, which uses water-lithium bromide (H2O-LiBr) mixture, has been provided. In the study, TS 825 standard and summer weather conditions of the city of Kahramanmaraş have been considered. In order to maintain the desired rooms's constant indoor temperature, the calculated cooling energy requirement has been met from the solar energy by means of collectors of the solar assisted absorption cooling system. In calculations Engineering Equation Solver (EES) and The Matrix Laboratory (MATLAB) programs were used. According to the apartment's cooling energy demand, required collector surface area has been calculated by considering different types of collectors (flat plate and evacuated tube collectors).

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Exergy analysis of a solar assisted absorption cooling system on an hourly basis in villa applications

Cited by 40 publications

References 19 publications

Thermoeconomic Optimization of a Renewable Polygeneration System Serving a Small Isolated Community

Thermoeconomic Optimization of a Renewable Polygeneration System Serving a Small Isolated Community

Simulation research on an EAX (Evaporator-Absorber-Exchange) absorption refrigeration cycle

Kahramanmaraş Kentinde Güneş Enerjisi Destekli Absorpsiyonlu Soğutma Sistemi Kullanılarak Bir Apartman Dairesinin Soğutulması

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