Abstract
Vapour compression systems are widely used in large scale of cooling application in industrial, commercial and institutional buildings. This conventional system did contribute to environmental problem; thus to overcome this issue nowadays, exploitation of solar energy for cooling purpose been studied. This paper presents a hybrid solar air conditioning system through appropriate solution for current problem of vapour compression system. However, solar air conditioning have major issue regarding an intermittence input due to unstable of daily solar radiation. Thus, introduction of thermal energy storage (TES) such as chilled water storage (CWS) foreseen to be the best solution and more economical compared to other types of storage. Through appropriate practicality in design and application, variation on solar collector area was analysed to determine optimum sizing which best suit with environmental factor. Surprisingly, the smallest collector area (150 m2) did shown highest saving on greenhouse gasses emission to environment.
Highlights
In renewable energy field, solar energy becomes popular for last decade and its contribution to world energy efforts
From economical point of view, it’s proven thermal energy storage (TES) can reduce annual cost of operation [11, 12] and give the same result while some research shown that reduction on environmental point of view which is greenhouse gasses emission [13-16]
Since this system was hybridize from current vapour compression system and heat supplied from solar energy, this system could minimize global warming effect by reducing energy consumption and eliminates the generation of greenhouse gasses to environment
Summary
Solar energy becomes popular for last decade and its contribution to world energy efforts. Solar air conditioning is proven more clean and significantly contribute to operational cost saving. Solar cooling has progressed considerably over the past years as a result of efforts toward environmental protection and new developments in components and systems, and significant experience has been gained from previous projects by [2] and its proven have potential of energy saving up to 40-50% as mention by [3]. From economical point of view, it’s proven thermal energy storage (TES) can reduce annual cost of operation [11, 12] and give the same result while some research shown that reduction on environmental point of view which is greenhouse gasses emission [13-16]. Theoretical study of hybrid solar air conditioning is needed to fulfil abstract knowledge of community about solar technology and later on to be a motivation to government as a baseline for any development in future
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