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Analysis of Optimal Thermal Process of Building Integrated with the Solar Air Collector

Author: LiuLei
Tutor: ChenBin
School: Dalian University of Technology
Course: Heating,Gas Supply, Ventilation and Air Conditioning Engineering
Keywords: Flat-plate solar air collector Year-round operation Building Integrated Thermal performance
CLC: TK513
Type: Master's thesis
Year: 2009
Downloads: 312
Quote: 0
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Abstract

Solar air collector is a cost-effective use of solar energy for heating utilization of solar energy equipment, and building integrated solar air collector is usually referred to as the building blocks of solar air heater (hereinafter referred to as the collector module). Solar air heater module thermal efficiency is low, not high overheating in summer, with the integration of the building, the impact of the construction of the installed collector in the winter and summer indoor thermal comfort and its building facade effect, restricting its In practical engineering applications. The literature survey found that most scholars at home and abroad are studying focus on the monomer collector thermal performance optimization, and collectors in working conditions throughout the year operating results and collector and building integration technology R \u0026 D has little studied. This study stems from the research and development of the \internal air circulation features, integration mode conducted in-depth research, after nearly a year and more experimental and theoretical analysis, innovative research results obtained are as follows: 1) Based on the basic form of the air collector module, taking into account the increase in winter heating performance and reduce overheating in summer ideas, development layer applied to the full-year operating conditions with air separator plate hole plate type (5mm aperture hole spacing 15mm) collector module. optimized collector the module through a comparative analysis of the solid plate, different pore openings tablet and different flow path the collector module thermal efficiency impact, the more traditional solid plate solar collector module, optimization module form, collection efficiency increased by 50% in summer The cooling: outdoor air through the upper end of the glass cover of the fan by the lower end of the border opening introduction of the inter-layer, take away collector module heat and hot air to the outside row, reducing the collector module superheat developed through this research collector module thermal efficiency of up to 75% more than the summer to install solar collector area of ??the south wall of the cooling load for nausea drying 12.5% ??of the working conditions. 2) thermal performance optimization on an experimental basis, the hole plate solar collector modules form theoretical calculation model for the material of the collector module, and the thickness of the interlayer for further analysis and optimization program winter heating effect is predicted. calculation results show that the aspect ratio of 6, the inner and outer collector module when optimizing air space thickness ratio of 3, the solar irradiance> 230W / m 2, the heat supply to meet the 65% energy saving to the building heat load of the room to the south, which is equivalent in an the Dalian outdoor climatic conditions 6 layer 4 units, each household with two South can standard coal 3032.64kg savings room residential building a heating period of the study for the research and design of solar air heater module to provide reference for the promotion of solar thermal technology has an important the meaning and application value.

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CLC: > Industrial Technology > Energy and Power Engineering > Special heat and its mechanical > Solar Energy Technology > Solar energy conversion devices and equipment
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