Welcome to visit Scientia Silvae Sinicae,Today is

Scientia Silvae Sinicae ›› 2018, Vol. 54 ›› Issue (11): 66-72.doi: 10.11707/j.1001-7488.20181110

Previous Articles     Next Articles

Design and Theoretical Analysis of Solar Energy Heating and Well Water Cooling Wall Apron Energy Storage System

Zhou Yucheng1, Du Binglin2, Jiang Xinbo2, Yang Chunmei2, Ma Yan2, Sun Jinhao2   

  1. 1. School of Information and Electrical Engineering, Shandong Jianzhu University Jinan 250101;
    2. College of Mechanical and Electrical Engineering, Northeast Forestry University Harbin 150040
  • Received:2018-04-02 Revised:2018-06-12 Online:2018-11-25 Published:2018-12-04

Abstract: [Objective] This paper proposes the design idea of solar heating and well water refrigerating wall skirting board, and designs a heat dissipater as the medium for solar water heater or water well and wall skirt for cold and heat conduction, and develops a kind of efficient heat transfer in order to provide a theoretical basis for the development of energy slorage system.[Method] The specific structure of each component of the energy storage system was determined, and the 3D software was used to build the model, to simulate the work flow of solar heating and well water refrigeration wall skirt, to design the control system of energy storage system, and to realize temperature detection, auxiliary heating and automatic water circulation and other functions. Through comparative analysis, insulation materials and thermally conductive metal materials are selected. The heat transfer principle is used to calculate the total heat absorbed by the house and the solar water heater in the heating mode, and compared with the total heat absorbed by the indoor air and the wall skirt plate. The heat flux of the hot water and the heat conductive aluminum plate in the energy storage system and the heat flux of the heat conductive aluminum plate and the air are separately calculated and compared. From the theoretical analysis of the total heat transfer and heat flow, the feasibility of solar heating and the heating mode of the well water refrigerating wall skirt is verified. In the same way, the feasibility of the cooling mode is verified.[Result] After comparative analysis, because the thermal conductivity of the rigid polyurethane composite material is lower and the working temperature is higher, the rigid polyurethane composite material is selected as the thermal insulation material for the energy storage water tank. The copper, which has a high thermal conductivity and a relatively low cost,is selected as a material of thermally conductive metal rod, and is formed into a spiral structure to increase the transmission contact area. In the heating mode, the solar water heater can provide the heat required to raise the temperature inside the house. In the cooling mode, the heat flow rate of the well water and the heat conductive aluminum plate in the energy storage system is 1.1 kW, being greater than that of the heat conductive aluminum plate and the air of 0.8 kW. Through the thermodynamic calculations of the above two modes, the feasibility of solar heating and the cooling mode of the well water refrigerating wall skirt is verified.[Conclusion] The simulation workflow and theoretical analysis prove that the design of solar energy heating and well water refrigeration wall skirt energy storage system has a certain feasibility, which provides a new idea for the research and design of energy storage system in the future. The development and utilization of energy storage systems has a very positive impact.

Key words: solar heating, well water cooling, wall apron, energy storage system, heat conduction

CLC Number: