THE MANAGEMENT FOR HOT WATER PRODUCTION SYSTEM : COMBINATION OF PHOTOVOLTAIC SYSTEM AND WASTE HEAT FROM AIR CONDITIONING SYSTEM

Abstract

This paper introduces a study of management for hot water production system, which combination of photovoltaic system and waste heat from air-conditioning system. The objectives were to study a method for developing an electricity-and hot-water producing system, combined with air-conditioning system in order to use with buildings or factories, and to study a method for manage energy consumption for the building, by using a combination of electricity from solar cell, and hot-water production, and also to study a feasibility of the hot water production system that combines solar energy with air-conditioning system, an adsorption chiller, and a heat exchanger.

The results showed that this system has high investment costs, and thus unsuitable for investment by private sector. Calculating from 20 years of equipment lifespan and Internal Rate of Return at 8.05%, will provide a 25 years payback period. However, considering efficiency and environment, this system is worth an investment because it creates no pollution, harmless to atmosphere, and utilizes solar power. This system is suitable for public organizations which have high demands of hot water, electricity, and air-conditioning system such as hospitals.