Open AccessDevelopment of a simple intermittent absorption solar refrigeration system
Author(s) -
Julius Kewir Tangka,
N. E. Kamnang
Publication year - 2006
Publication title -
international journal of low-carbon technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.458
H-Index - 26
eISSN - 1748-1325
pISSN - 1748-1317
DOI - 10.1093/ijlct/1.2.127
Subject(s) - refrigeration , solar energy , condenser (optics) , thermocouple , evaporator , materials science , nuclear engineering , coefficient of performance , solar air conditioning , photovoltaic thermal hybrid solar collector , generator (circuit theory) , absorption (acoustics) , refrigerant , environmental science , thermodynamics , optics , electrical engineering , heat exchanger , physics , engineering , composite material , light source , power (physics)
A simple solar energy powered intermittent absorption refrigeration system was designed, fabricated and tested. The system uses a generator charged with ammonia and water. The heat source is a solar radiation collector that collects and radiates solar thermal energy onto a black body generator. The generator drives the refrigerant around the system through a condenser and an evaporator. The system was evaluated by leaving it outside under solar radiation and monitoring temperatures at various points inside the collector, the generator, and the evaporator through the use of thermocouple sensors. The average highest and lowest temperatures inside the solar collector were 100°C and 40°C respectively. The average lowest refrigeration temperature was 4°C. The coefficient of performance (COP) of the system was estimated at 0.487. Copyright , Manchester University Press.
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