An air heat exchanger is a device that is used to transfer heat between two air streams. It is commonly used in heating, ventilation, and air conditioning (HVAC) systems. The heat exchanger can be designed to allow the two air streams to be either separately or together.
Generally, we classify the air heat exchanger into Finned Tube Heat Exchanger, Plate Type Air Heat Exchanger, Seamless Pipe Air Heat Exchanger, Twisted Heat Exchanger, etc. according to its structure.
Air heat exchangers are commonly used for a variety of applications in the HVAC system, such as space heating, cooling, humidification and air circulation. In space heating applications, air heat exchangers are used to transfer heat from outside air to indoor air, in order to provide heat for the building. In cooling and air circulation applications, air heat exchangers are used to transfer heat from an indoor space to the outside. in order to keep the building cool.
The main advantage of using an air heat exchanger is that it is very efficient in transferring heat energy between the two streams without any loss. It is also relatively inexpensive, compared to other types of heat exchangers. Additionally, air heat exchangers are small and compact, making them ideal for applications in tight spaces.
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Zhang Taolin, deputy director of the Ministry of Agriculture, said that the agricultural subsidies and other strong agricultural policies greatly mobilized farmers' enthusiasm for purchasing and using agricultural machinery. As of the end of 2010, the total power of agricultural machinery in the country reached 928 million kilowatts, an increase of 35.2% over 2005, and the level of agricultural machinery and equipment has rapidly increased. The level of farmland, sowing and harvest mechanization in agricultural production in China has reached 52.28%, an increase of 16.38 percentage points from 2005, and the comprehensive agricultural production capacity has been significantly enhanced.
According to reports, during the “Twelfth Five-Year Plan†period, the promotion of agricultural machinery technology in China will focus on promoting the integration of agricultural machinery and agronomy, integration of agricultural machinery, and informationization, in order to promote the increase in production, efficiency, resource conservation, and environment-friendly agricultural machinery. Focus on technology, strengthen promotion system construction, talent team construction, facility condition construction, improve agricultural machinery science and technology innovation capability, technology integration capability, and extension service capability, accelerate results transformation, accelerate the popularization of new agricultural technology, and provide powerful force for agricultural modernization. Technology support.
China's agricultural comprehensive mechanization wants to exceed 65% within 5 years
The National Conference on Agricultural Mechanization Technology Promotion held recently by the Ministry of Agriculture has established the goal of the development of the comprehensive mechanization level for agricultural production, cultivation, and harvesting in China: by 2015, the country’s main crop harvesting and comprehensive mechanization level will strive to reach over 65%, providing a powerful force for agricultural modernization. Technological support.