The Verification of the Payback Time for a Solar Driven Absorption Cooling System Depending on Technological Development and Design Data

Abstract

In this study a solar driven absorption cooling system is offered for a hotel. Solar energy is only used in absorption chiller. The payback time of the offered system with different scenarios are investigated. Solar collectors and absorption chiller price are the main contributors to the total system price. The effects of the unit prices of the absorption chiller and solar collectors depend on the technology development. However, electricity prices increases day by day due to the increased fuel prices. Also, storage option is taken into account to increase the load factor of the offered system. The effect of the carbon prices are also investigated for the offered system for different ton prices of the carbon. The best and worst scenarios are given with respect to the variation of the prices and load factor. The results show that, the payback time changes 2.18 to 20.3 years. With 2010 prices with 10 $ per ton carbon credit the payback time is calculated 10.1 years. However, the cost of electricity and carbon increases and the offered system payback time could be logical in less than ten years.

 

 

 

                Key Words:  Absorption chiller, solar energy, carbon credit,

                payback time.                                 

Keywords

• Absorption chiller, solar energy, carbon credit, payback time