Energy-saving Design Of The Heat Pump Air Conditioning System, Heating And Energy Saving Operation

The Dalian Youhao mansion is.a high office-building which is located in the south of the Dalian Youhao square and its total building area is 46553 square meters. Because of its geography location, new boiler house can't be placed. There are difficulties if central heating system is used. So a new heating method which can not only satisfy the heating temperature demands of Dalian winter but also satisfy the requests of energy saving and environmental protection should be chosed to replace the central heating system.In this paper, aimed at Dalian Youhao mansion, theoretic analysis and spot testing studing about the adopt possibility .system energy-saving design and operating energy- using of VRV heat pump air condition system are discussed. The main studing contents include:(1)The VRV heat pump air condition system's system structure, temperature-control characters, operating way and operating range of compressor and system efficiency of low temperature woking condition are analyzed and demonstrated. The results note that the adoption of VRV heat pump air condition system in Dalian region is completely viable in technique.(2)According to the national request of northern winter heating design, heating load is calculated in this paper. Based on the load calculating worth, the VRV unit technique parameter and the influencing factors of system efficiency, a energy-saving design project is put forward.(3)By way of the spot testing for the unit actual operating condition, the emphases of this paper are the actual heating work condition and effecting factors of the VRV heat pump air condition system. The check of the operating and enery-saving possibility of the VRV heat pump air condition system in winter heating are also the emphasis. Testing results indicate that this heating system is feasible and energy-saving.(4) The paper compares the economical efficiency of the VRV heat pump air condition system to the traditional heating systems. Form the results , nearly 740, 000 yuan can be saved when this system is be used to maintain 18癈 indoors every year. At the same time, by the use of electricity, this system can also produce great social benefits to the enviorment protection and energy conservation.