Simulation of solar-powered absorption cooling system

Atmaca, İbrahim; Yiğit, Abdulvahap

doi:10.1016/s0960-1481(02)00252-5

Cited by 87 publications

(32 citation statements)

References 5 publications

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“…With machines using a complex cycles system than those with a simple effect Ziegler et al [1], one defines the extensions of temperatures characteristic for seven different cycles.…”

Section: Modeling the Absorption Machine -The Methods Of Kühn And Zieglermentioning

confidence: 99%

“…This temperature could increase by 1.4 to 4.5 °C by 2100 [1][2][3]. The signs of this warming are becoming more numerous and are manifested by melting glaciers, rising sea levels and extreme heat waves, etc.…”

Section: Introductionmentioning

confidence: 99%

“…The study of solar cooling systems can go through a purely fundamental approach with the development of numerical models to predict the behavior of the various system components [1][2][3][4]. Indeed, numerical simulation allows virtually investigate physical systems and effectively test the validity of the proposed solutions [5][6].…”

Section: Introductionmentioning

confidence: 99%

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A field study of indicators of the performance of four absorption chillers in the Sudano-Sahelian region of Cameroon

Chedop

Djongyang

Tchinda

et al. 2016

J. Fundam and Appl Sci.

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This paper presents a field study of indicators of the performance of absorption refrigerating systems in the Sudano-Sahelian region of Cameroon. A modeling of various components of the system is performed in order to choose the technology best adapted for the region. Based on the characteristics from the manufacturers, four absorption chillers were studied; namely: EAW Schüco LB 15 and 30; Rotartica Solar 045 and Sonnenklima Suninverse. The model of Kühn and Ziegler and meteorological data of the city of Maroua ((14.33 °E, 10.58 °N) were used to assess the coefficient of the performance (COP) of these machines. Results showed that the Sonnenklima Suninverse technology is best suited for the climatic conditions of the Sudano-Sahelian region with COP values between 1.5 and 3.5.

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“…With machines using a complex cycles system than those with a simple effect Ziegler et al [1], one defines the extensions of temperatures characteristic for seven different cycles.…”

Section: Modeling the Absorption Machine -The Methods Of Kühn And Zieglermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A field study of indicators of the performance of four absorption chillers in the Sudano-Sahelian region of Cameroon

Chedop

Djongyang

Tchinda

et al. 2016

J. Fundam and Appl Sci.

View full text Add to dashboard Cite

show abstract

“…There are a lot of researches referred to theoretical studies [4][5][6][7], but the information about experimental studies in this kind of installations is scarce [8]. New absorbents [9,10] and temperature-entropy diagrams [11] have been analyzed and numerous simulations have been carried out with TRNSYS [12][13][14]. While the theoretical and simulation studies work with only arbitrary parameters (fixed by the researcher), an experimental study works with the real variation of these parameters.…”

Section: Introductionmentioning

confidence: 99%

Analysis of a New Dissipation System for a Solar Cooling Installation

Bailo

Garcés

Arizón

2010

Journal of Thermodynamics

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This paper describes a solar absorption cooling installation located at the University of Zaragoza (Spain). The installation is based on the performance of an absorption chiller. The solar cooling system consists of 37,5 m 2 of flat plate collector, a 4.5 kW, singleeffect LiBr-H 2 O absorption chiller, and a dry cooling tower. The installation provides cooling to a gymnasium belonging to the sports center of the university. To carry out the installation analysis, the system was continuously monitored. In 2007, 2008 and 2009, several studies have been performed in order to analyze the full system operation. The measured data showed the strong influence of the cooling water temperature and the generator driving temperature on the COP. Due to the experimental evidence of the influence of the cooling water temperature, a new heat rejection system based on a geothermal heat sink has been installed and studied.

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“…G.C. Tubreoumya, et al [13] developed a mathematical model representing the evolution of heat and mass transfer at each com- [14]. The coefficient of performance (COP) and the exergetic coefficient of performance (ECOP) of the system are also investigated.…”

mentioning

confidence: 99%

Exergy Analysis of a Solar Absorption Refrigeration System in Ngaoundere

Tenkeng¹,

Wouagfack²,

Lissouck³

et al. 2017

JPEE

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In this study, the first and second laws of thermodynamics are used to analyze the performance of a single-stage absorption refrigeration system powered by solar energy. The working pair used in this study is LiBr-H 2 O where water (H 2 O) is the refrigerant and the lithium bromide (LiBr) is the absorbent. A mathematical model based on exergy analysis is applied to analyse the system performance. Temperature, enthalpy, entropy, mass flow rate and exergy loss of each component including evacuated tube solar collector are evaluated. Furthermore, the overall coefficient of performance (COP cooling ) and the overall exergetic coefficient of performance (ECOP cooling ) of the solar absorption system (absorption system coupled to an evacuated tube solar collector) for cooling purpose are calculated from the thermodynamic properties of the working fluids under weather conditions of Ngaoundere city, Cameroon. The calculations were done on the basis of a half hourly analysis from 6:30 AM to 6:30 PM. The results were compared and they show that the exergy destruction highly occurs in the generator and the solar collector. The simulation results can be used for the thermodynamics optimization of solar absorption refrigeration systems.

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Simulation of solar-powered absorption cooling system

Cited by 87 publications

References 5 publications

A field study of indicators of the performance of four absorption chillers in the Sudano-Sahelian region of Cameroon

A field study of indicators of the performance of four absorption chillers in the Sudano-Sahelian region of Cameroon

Analysis of a New Dissipation System for a Solar Cooling Installation

Exergy Analysis of a Solar Absorption Refrigeration System in Ngaoundere

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