With the rapid development of science and technology, new technologies are emerging in the field of HVAC.
First, starting with the design, the HVAC system is selected and designed to make it run in the high efficiency and economic condition.
Design is the head of the project, and the design of the system directly affects its performance. The building load calculation is an important part of the design, the common phenomenon is the design of short duration, many designers in order to save time, the wrong use of the design manual for the design or preliminary design to estimate the load load per unit building area index directconstruction design stage as hot and cold load to determine the basis that often makes the larger the total load, resulting in air conditioning and heating equipment is too large, the initial investment increases, increased operating costs, energy consumption increased.
Two is a new type of energy saving, comfortable and healthy air conditioning and heating mode. There are many environmental parameters that affect human thermal comfort. Different environmental parameters can get the same thermal comfort effect, but the energy consumption of air conditioning system is quite different for different combinations of thermal and humidity parameters.
The three is to combine the actual situation, reasonable choice of air conditioning cold and heat sources, and strive to achieve the diversification of the cold and heat sources. The wide application of HVAC system has greatly increased the consumption of non renewable energy, while the ecological environment is becoming more and more serious. How to choose cold and heat sources reasonably has aroused wide attention of all parties. At the same time, the system should also strengthen the research and utilization of cold and heat recovery and utilization to achieve the maximum utilization of energy.
Improving the energy utilization rate of HVAC system is also one of the ways to realize the energy saving of air conditioning. Heat recovery is mainly through the installation of energy recovery device installed in the system, using the energy in the exhaust to deal with fresh air, which can reduce the energy needed to deal with the fresh air, reduce the load of the unit and achieve the purpose of energy saving. When selecting the heat recovery unit, we should consider the factors such as the local climate, the economic status, the engineering practice and the harmful gas in the exhaust. We should choose the appropriate heat recovery device to achieve the purpose of less investment and more heat (cold).
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