Influence Ingredient Analysis Of Air-conditioning System Heat Recovery And Assessment Method

Presently, the energy question is becoming one of various countries matter of concern, along with the our country economy high speed development, our country air conditioning popular rate the enhancement, its energy consumption unceasingly increases year by year. In our country construction energy consumption heating, ventilates, and the air conditioning energy consumption occupies the national total energy consumption about 20%, but one of air-conditioning system energy consumption characteristics is the massive afterheat waste. In order to reduce the air-conditioning system the energy consumption, full excavation preheating with waste-heat recovery potential, considered a row of wind the energy loss and the new atmosphere energy investment, uses the energy recycling installment in the air-conditioning system, the energy processing new atmosphere which a use row of wind carries, may reduce the energy which the processing new atmosphere needs, reduces the unit load, enhances the system the economy, simultaneously, reduces the total energy consumption.However, in the air conditioning unit the short-term air current circulation as well as the air-conditioning system wind tube leakages, reduced the air-conditioning system well ventilated efficiency and the heat recovery efficiency. The wind tube system as well as the building maintenance structure was not close, the seal is not good, creates partially has processed the wind not to pass through the air conditioning room once in a while heat recovery equipment direct platoon to outside, the energy which the nature it carried also directly wastes. At the same time, wind tube leakages, in order to maintain the system amount of wind, must enlarge the new amount of wind, the new amount of wind will increase causes the air blower shaft power increase. Causes the air blower the energy consumption to enlarge.This article according to this kind of situation,qualitative analysis air-conditioning system heat recovery installment influence factor. And redefines the air-conditioning system heat recovery the efficiency. emphatically analyze wind tube leakages as well as factor and so on short-term air current circulation to the air-conditioning system influence. Through the equation development, finally indicated as a result of air current short-term circulation and leakages the influence, causes the air conditioning heat recovery system heat recovery efficiency greatly to reduce, the heat recovery installment recycling effect is not obvious.Appraises a heat recovery to install whether reasonably, the list did say from the energy aspect, must think this system recycling energy whether is bigger than the energy which the supporting facility consumes. We introduce a new heat recovery appraisal method - pure energy income law in this foundation. This method not only had considered the air conditioning heat recovery system recycling energy, simultaneously considered the air-conditioning system the equipment energy consumption which attaches for the heat recovery. Through the project example confirmation analysis, this appraisal method is reasonable feasible. Meanwhile the heat recovery installment will select to the later actual engineering project in has the very good instruction significance.At the same time, in the economic analysis aspect, the article uses the new economic analysis method, calculates entire heat interchanger price which the Wuhan area the different function building air-conditioning system unit amount of wind may accept, this will call the roll of officers and assign them tasks to the Wuhan area later actual engineering project in the heat recovery installment selects has provided one directly, more convenient, more practical more and feasible method.