Optimizatio Study On Integral Heating Device Of Trough Solar Collectors In The North Barracks Building

In the military construction in north China, Some units are located in the area of the natural environment, such as the cold, the plateau, the desert and so on, at the same time, logistical support for these places, far away from the central city, is relatively difficult. Meeting either the suddenly drop in air temperature or traffic congestion will result in an external supply disruption and can not even guarantee the modernization of military security needs In recent years, the solar energy as a viable alternative energy sources has been vigorously promoted, so in the areas with abundant solar resource in the North barracks, the introduction of solar energy heating technology provides an important direction for solving the problem of heating in winter in these areas.Aiming at winter heating problems in the North barracks buildings, through the field investigation on more than 100 camps, this paper optimizes an integrated solar energy heating device, solves the winter heating problems in troops, and achieves the harmonious coexistence and sustainable development of officers and men, the camp and the environment, which is essential to improve the energy security of the army.First of all, this paper analyzes the characteristics of North barracks building heating and heating status, and optimize the solar heating integrated device, with the combination of energy storage type heat exchanger forming the solar energy heating system to supply heat for buildings. In order to solve the winter heating problems in troop of Shenyang Military Region inspection repair factory, this paper applies the trough type solar energy heating system to an energy-saving transformation project in a troop of inspection repair factory, and calculated the type selecting for various equipments in system. By designing different operation modes, a proper trade-off between solar heating and heat storage is achieved, and improve the stability of solar heating.Secondly, in order to test the actual heating effect of system, in this paper, the inspection repair factory project is tested and analyzed from several aspects, such as solar heat collection of collector, solar fraction, collector efficiency, indoor temperature and so on. The test results showed that compared with the traditional heating mode of coal-fired boiler, trough solar energy heating system has higher energy efficiency, can also reduce the dependence on fossil fuels and improve the capacity of alternative fuel sources.Finally, the solar heating system is optimized according to tube pass in energy storage type heat exchanger, fluid velocity of shell and heating terminal form respectively, after optimization, with higher energy saving and economic benefits, the heat transfer coefficient of energy storage type heat exchanger and the collector thermal efficiency are improved obviously.