Narrow search
Showing 71 - 80 of 101
Cover Image
A review on solar-powered closed physisorption cooling systems
Hassan, H.Z.; Mohamad, A.A. - In: Renewable and Sustainable Energy Reviews 16 (2012) 5, pp. 2516-2538
Cooling, refrigeration, and air conditioning processes are considered essential needs and major requirements for all … problems. Adsorption refrigeration systems that are driven by solar energy are mature technologies. They are proven to be … suitable and applicable for refrigeration as well as air-conditioning applications. Solar adsorption cooling technology is …
Persistent link: https://www.econbiz.de/10010573445
Cover Image
Effectiveness–NTU correlation for low temperature PCM encapsulated in spheres
Amin, N.A.M.; Bruno, F.; Belusko, M. - In: Applied Energy 93 (2012) C, pp. 549-555
The applicability of the effectiveness–NTU method for characterising a PCM thermal energy storage system was experimentally investigated. The system consisted of PCM encapsulated in spheres with a liquid heat transfer fluid. Freezing and melting tests have been carried out for a variety of...
Persistent link: https://www.econbiz.de/10010576235
Cover Image
Development of adsorption air-conditioning technology using modified activated carbon – A review
Yeo, T.H.C.; Tan, I.A.W.; Abdullah, M.O. - In: Renewable and Sustainable Energy Reviews 16 (2012) 5, pp. 3355-3363
paper presents an overview of the researches which had been carried out on adsorption refrigeration system with the commonly … used adsorbent and adsorbate working pairs, solar adsorption refrigeration and adsorption technologies in automobile …. Activated carbon has been widely used as the adsorbent in adsorption refrigeration system. However, one of the bottlenecks which …
Persistent link: https://www.econbiz.de/10010577198
Cover Image
Suitability of coupling a solar powered ejection cycle with a vapour compression refrigerating machine
Chesi, Andrea; Ferrara, Giovanni; Ferrari, Lorenzo; … - In: Applied Energy 97 (2012) C, pp. 374-383
The most commonly employed technology for cold production is vapour compression, mainly due to the high efficiency of such devices. However, a major operating issue is the strong dependency of system efficiency and capacity on ambient temperature, which in turn leads to low yearly performance...
Persistent link: https://www.econbiz.de/10010702401
Cover Image
Options for solar-assisted refrigeration—Trough collectors and double-effect chillers
Tierney, M.J. - In: Renewable Energy 32 (2007) 2, pp. 183-199
“break-even” point at a daily average of 50kW refrigeration demand; here the gas consumption was no more favourable than that …
Persistent link: https://www.econbiz.de/10011043820
Cover Image
Experimental and theoretical investigation of an innovative evaporative condenser for residential refrigerator
Nasr, M.M.; Hassan, M. Salah - In: Renewable Energy 34 (2009) 11, pp. 2447-2454
thermal properties at the different points of the refrigeration cycle were measured for typical operating conditions. The …
Persistent link: https://www.econbiz.de/10011044018
Cover Image
Development and testing of a prototype of low-power water–ammonia absorption equipment for solar energy applications
De Francisco, A.; Illanes, R.; Torres, J.L.; Castillo, M.; … - In: Renewable Energy 25 (2002) 4, pp. 537-544
solar-powered refrigeration in small rural operations. The objective is to design a 2 kW refrigeration equipment for … isolated areas with a high level of solar radiation to meet refrigeration requirements. The equipment has been designed to …
Persistent link: https://www.econbiz.de/10011044062
Cover Image
A dynamic multi-level model for adsorptive solar cooling
Santori, Giulio; Sapienza, Alessio; Freni, Angelo - In: Renewable Energy 43 (2012) C, pp. 301-312
This paper focuses on the development of a dynamic multi-level model for simulating of a solar cooling system adopting an adsorption chiller. The model integrates detailed simulation of the adsorption cycle (component level) into the transient simulation of the solar cooling system (system...
Persistent link: https://www.econbiz.de/10011044411
Cover Image
Study of an adsorption refrigeration system powered by parabolic trough collector and coupled with a heat pipe
El Fadar, A.; Mimet, A.; Pérez-García, M. - In: Renewable Energy 34 (2009) 10, pp. 2271-2279
The aim of the current paper is to propose a study of a novel solar adsorptive cooling system, using activated carbon–ammonia pair, coupled with a parabolic trough collector (PTC) and a water-stainless steel heat pipe. A theoretical model, based on the thermodynamics of the adsorption process,...
Persistent link: https://www.econbiz.de/10011044463
Cover Image
Effect of ambient conditions on the first and second law performance of an open desiccant cooling process
Kanoğlu, Mehmet; Bolattürk, Ali; Altuntop, Necdet - In: Renewable Energy 32 (2007) 6, pp. 931-946
An open desiccant cooling process is presented and applied to ventilation and recirculation modes of the system operation. The cooling system consists of a desiccant wheel, a rotary regenerator, two evaporative coolers, and a heating unit. Certain ideal operating characteristics based primarily...
Persistent link: https://www.econbiz.de/10011046298