Design, realization and testing of an adsorption refrigerator based on activated carbon/ethanol working pair. (15th July 2016)

• Record Type: Journal Article
• Authors: Frazzica, A.; Palomba, V.; Dawoud, B.; Gullì, G.; Brancato, V.; Sapienza, A.; Vasta, S.; Freni, A.; Costa, F.; Restuccia, G.
• Is Part Of: Applied energy. Volume 174(2016)
• Page Start: 15
• Page End: 24
• Publication Date: 2016-07-15
• Subjects: Adsorption -- Refrigeration -- Ethanol -- Activated carbon; Power (Mechanics) -- Periodicals; Energy conservation -- Periodicals; Energy conversion -- Periodicals; 621.042
• DOI: 10.1016/j.apenergy.2016.04.080
• Languages: English
• ISSNs: 0306-2619

Abstract

Highlights: Development of a lab-scale adsorption refrigerator. Optimization of working pair and adsorber configuration through experimental activity. Experimental testing of the prototype under real working boundary conditions. Abstract: In the present paper design, realization and testing of a novel small scale adsorption refrigerator prototype based on activated carbon/ethanol working pair is described. Firstly, experimental activity has been carried out for identification of the best performing activated carbon available on the market, through the evaluation of the achievable thermodynamic performance both under air conditioning and refrigeration conditions. Once identified the best performing activated carbon, the design of the adsorber was developed by experimental dynamic performance analysis, carried out by means of the Gravimetric-Large Temperature Jump (G-LTJ) apparatus available at CNR ITAE lab. Finally, the whole 0.5 kW refrigerator prototype was designed and built. First experimental results both under reference air conditioning and refrigeration cycles have been reported, to check the achievable performance. High Specific Cooling Powers (SCPs), 95 W/kg and 50 W/kg, for air conditioning and refrigeration respectively, were obtained, while the COP ranged between 0.09 and 0.11, thus showing an improvement of the current state of the art.