Working Characteristic Research Of Solar Floor Radiant Heating System

In the face of the contradiction between the increasingly tense energy consumption with energy supply, energy consumption with environmental pollution,the development and utilization of renewable energy become the most effective way to solve the contradictions.It is of great significance in achieving the goal of building energy conservation and emissions reduction, the improvement of energy structure, the conventional fossil energy saving, protect the natural environment, climate change mitigation, etc. by combining solar heat utilization technology with radiant floor heating technology, to meet the demand of heating and domestic hot water.Through the analysis of research status in this field at home and abroad, knowing there still many areas have not been studied in solar radiant floor heating at present:(1)The light of the regional meteorological conditions of Yinchuan,there had no one studied the feasibility and operation condition of solar energy heating system;(2)There is no report about the research of operating conditions in Solar hot water floor radiant heating system;(3)There is no report about the characteristics of working conditions of the independent working condition of heat storage, the independent working condition of heat release,as well as The operation condition of the reservoir exothermic compound runtime features;(4)There is no exact analysis process and results about the economic analysis and energy saving of solar energy heating system.In this paper, with the study of the system set up in Yinchuan,we draws the following conclusion:(1) In Yinchuan,with auxiliary energy in the solar floor radiant heating system can meet the demand of heating in winter, and the system runs well;(2) Through experiments that the heating system flow for25L/min the working parameters, good operation effect of the whole heating system; through the comparison of the experimental results, water temperature at50℃, the heating system can meet the heating requirements;(3) Solar heating system must adopt the heat storage composite system and radiant floor heating, indoor temperature reached20℃meet the heating requirements;(4) In different month of heating the solar radiation intensity is different, the energy provided to the system is different.The solar assurance rate is43.1%in December,47.9%in January,49.1%in February,51.9%in March;(5) Different operating conditions of solar heating system of environmental benefits are obvious, during operation to reduce carbon dioxide emissions, to slow down global warming;(6) Solar energy and auxiliary electric heating this operating condition, according to the analysis of the system operating conditions of the system can be approximately8.4years to recover the cost of operation.