Inderscience Publishers

Technical and economic analysis of a solar–assisted air–conditioning system


This paper presents analysis aiming at assessing the feasibility and economic performance of a solar–assisted air–conditioning system for a middle class house under the climatic conditions of Tunis City. Two alternative cooling modes for the single effect water–lithium bromide absorption machine are considered, a water–cooling in association with a cooling tower and air–cooling. The numerical simulations show that for the water–cooling case, a solar system with 18 m² of evacuated tube collector area and a thermal storage tank of 1.3 m³ maintained at a temperature of 95°C can cover 50% of the energy needs of the machine. The corresponding optimal results for the air–cooled chiller are: energy needs coverage 40%, hot water tank capacity 1 m³ at 110°C, collector area 14 m². The annually total costs for the case of water–cooling and air–cooling are respectively 3.52 €/kWh and 2.51 €/kWh.

Keywords: single effect chiller, water–lithium absorption machine, evacuated tube collectors, solar air conditioning, economic viability, cost, optimisation, TRNSYS, technical analysis, economic analysis, solar energy, solar power, Tunisia, water cooling, numerical simulation

Customer comments

  1. By Falah Mustafa on

    Dear Sir i would like to know the impact factor of IJRET Best regards Dr falah I. Mustafa solar energy research center