| With the development of production and living standards improve,the rapid growth of energy consumption,the development and utilization of new energy sources has been a hot issue in today's society is an urgent need to solve.Currently,natural gas is the world's most numerous energy and clean energy,because of its rich reserves,the development and utilization of natural gas has been more attention around the world.Solar energy as a clean energy,is not only a primary energy,but also renewable energy,abundant solar energy resources,without any pollution to the environment.Based on the existing solar energy-a complementary basis GHP heating system,we study the problem of solar collectors and thermal storage heat storage tank.Collectors and collectors effect in different locations on the collector and the water tank and matching pitch affected by the construction collector and tank matches,as well as different buildings spacing when solar-gas heat pump heating system required complem entary consumption of natural gas to be analyzed and studied.Use the winter solstice sunshine analysis software to simulate the benchmark buildingsr drawn in the winter solstice when the building is less than the minimum spacing of sunshine spacing,spacing each additional building for more than 4h 10m cumulative sunshine of the south wall area share increased 10%;when construction pitch spacing greater than sunshine,the cumulative duration of sunshine over the brick wall 7h changes do not occur in the area.Dest and TRNSYS Recall use data to calculate roof collector installation angle of 54°when the amount of solar radiation available to the largest unit for 2578.26MJ/m2;availability of a brick wall collector installation angle of 66° when The maximum amount of solar radiation units for 2854.26MJ/m2.TRNSYS software utilizing solar collector heat storage system was simulated,draw water tank and collector volume area ratio in 62.5L/m2?75L/m2,the collector heat effectively sets the maximum growth rate;stratified tank the number of layers N=5,the roof heat collector effectively set 3.1%increase,the south wall of the collector heat effectively set a 2.2 percent increase.TRNSYS software using MATLAB software and the combination of solar energy-gas heat pump heating system complementary to simulate collectors complementary heating system installed in the heating season in the average COP of 4.24 at the time of the roof,while the complementary collectors mounted on the south wall when heating system heating season at an average COP of 4.35.When the building when the pitch is 56.8m?66.8m.COP is very close,a difference of about 0.02 per month,and when the building spacing decreases 46.8m to the collector by building spacing greater impact,the average monthly difference of about 0.15 COP.Unlike solar auxiliary energy consumption were calculated results show that the solar heating system GHP higher energy efficiency,better performance,compared with other systems,with significant energy savings and economic benefits.Solar-GHP complementary heating system,although there are economic and other factors,it is now can not be the main way of heating,but continues to mature as solar and gas heat pump heating technology,complementary heating mode will be very competitive this article entary and natural gas for energy research,renewable heating provides some theoretical basis and reference value. |
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