Investigation On Applications Of Solar Heating Water In Shenzhen High-Rise Residential

The shortage of energy has threaten the development of our national economy, so people more and more attach importance to the exploiture and application of new energy and renewable energy. At present during the thermal applications of solar energy, the solar water heating system has fully developed in technology, and has the most competitive power and its application is widespread, at the same time the industrialization of solar water heating system has also developed rapidly. The development of economy and population in Shenzhen is so fast that the demand of hot water for life increased constantly. And Shenzhen situated in the hot summer and Warm winter area and the solar radiation resources in Shenzhen is relatively rich. However, it is difficult to use solar heat in the promotion of Shenzhen due to many existed high-rise residential, so the solar thermal research of high-rise residential in Shenzhen has practical significance.In this paper, for integrated solar water heating system of high-rise residential in Shenzhen, through the summary of features for the solar radiation and high-rise residential in Shenzhen, it is determined the specific type of collector, the location of the installation, the form of system and the way of integration, and it is referred for the integrated solar water heating system of high-rise residential design in Shenzhen.In this paper, it is simulated for different collector angle, azimuth, ratio of water storage capacity and collector area and other major factors with orthogonal methods, and it is summed up the impact of the main related factors for gained year calorific capacity per area of collector, average year efficiency, and average annual temperature rise.With TRNSYS system simulation software ,this article also set up a mandatory cycle of direct and indirect model for circulatory system to simulate the average application of solar water heating in Shenzhen. Through software simulation, it is determined the influenced relationship for ratio of water storage capacity and collector area in typical directions to gained year calorific capacity per area of collector, average year efficiency , average annual temperature rise, water pump year running time of the relationship, And come through the curve fitting function. On principle for system of the largest cost-effective on life-cycle, it is determined the relationship for different price of water tanks in typical direction to ratio of water storage capacity and collector area.Through the analysis of net year energy saving , static payback period , dynamic payback period and environmental benefit corresponding to the optimal VAR ,it is determined the largest energy-saving potential and economic performance in the different price for water tanks ,and it is provided reference for collector installed position on high-rise residential in Shenzhen. At the same time, it is determined heating gained year distribute of system in typical directions in Shenzhen , and it is provided reference for solar hot water system to balance supply and demand design on high-rise residential in typical directions in Shenzhen.At the same time, combined with the high-rise residential roofing integrated solar water heating system engineering design in Shenzhen, it comes out the running actual results in different weather conditions, also analyses and determines the performance characteristics. In addition, it is determined the improved effect for Collector to the high-rise residential roofing insulation performance. Compared with balcony, wall-style facade, the effect is more significant, which is further proved that integrated combination with solar water heating system and high-rise residential roofing is superior.