Performance Enhancement of PV Cooling System –using Thermal Mass
- February 26, 2018
- Posted by: RSIS
- Categories: Engineering, Mechanical Engineering
International Journal of Research and Innovation in Applied Science (IJRIAS) | Volume II, Issue IX, November 2017 | ISSN 2454-6194
Performance Enhancement of PV Cooling System –using Thermal Mass
Bachchu Lal Gupta
Department of Mechanical Engineering, Govt. Engineering College Bharatpur 321001 India.
Abstract: In the solar photovoltaic cooling system the performance of system can be increase either enhances the power generation from the solar photovoltaic panel or decrease the power consumption of air conditioner. The power generation can be increase by using tracking mechanism while the cooling load on air conditioner can be reduced by using thermal mass in the building. In this paper analysis is carried out using thermal masses with respect to base case. The size of air conditioning system is same as in the base case because the peak cooling load is reduced only 0.9 kW in the moderate climates. The peak cooling is reduced to 0.3-0.5 kW in other climates. It is not feasible to reduce the size of the air conditioning system because the reduction in size negligible as per market conditions. Results show that effect on solar fraction is within 1-2% by using additionally thermal masses.
Keywords: Solar Fraction, PV System, Thermal mass.
I. INTRODUCTION
Building construction material plays a vital role in sizing of air conditioner. The peak cooling load of the building is depending on thermal mass of the building. In this paper an attempt is made to analyses the performance of the solar photovoltaic cooling system using different thermal masses. The building construction was done layer by layer. The properties of each material used in construction are shown in the table 1 and 2. The material is defined with the specific heat capacities and density that incorporate the thermal mass. In order to enhance the solar fraction for PV cooling technologies it is reasonable to see the effect of the thermal mass. The present case is called the base case and further improvement in the thermal mass is denoted as thermal mass-1, 2, and 3.
Building geometry was updated by incorporating the thermal masses and annual cooling energy demand and peak cooling energy demand was calculated by the building cooling load simulation using different type of building having the different thermal masses.
