The Economic Analysis Of Ice Storage Air Conditioning System

Ice-storage air-conditioning system will improve the energy coefficient of utilization and optimize energy resource disposition, which is an important measure to realize the "shift peak load to low period" of electrical wire and is also a main orientation for modem air-conditioning development .So, it is of realistic significance to make a technical analysis about ice-storage air-conditioning system. Experimental research and the technical and economic analysis of thermal storage air-conditioning have an important theoretical value and practical signification.But the investment cost of ice-storage air-conditioning system is higher than that of conventional air-conditioning system, the key point whether we use ice-storage air-conditioning system is its economic, there are many factors which affect its economic, this article introduce some factors such as the cold load distribution of air-conditioning, electric power policy and peak valley electrovalence, ice-storage strategy of ice-storage air-conditioning system, the controlling strategy of ice-storage air-conditioning system, the arrangement way of ice-storage air-conditioning system, the rate of ice-storage, the type of ice-storage equipment and the refrigeration equipment, whether uses the low temperature blast system which affect the economic. This article introduces the static and dynamic economy analysis model of ice-storage air-conditioning system and work out the economic analysis of practical examples by using the static economy analysis model, the conclusions are:(1)Whether the ice-storage air-conditioning system is applicable or not depends on whether the increased investment can be called back in a short time, it is economic if the recovery period is generally within five years. If the recovery period is longer, we do not use even if operating cost is relatively lower.(2)In fact, there are different factors which affect the economic in different application. The engineering application of ice-storage air-conditioning system will achieve favorable economical benefit if the design model and operating tactic are properly chosen.