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Research on Design Optimization on Strengthening Building Natural Ventilation and Heating by Using Solar Energy

Author: ZhangNing
Tutor: ZhaoLei
School: Xi'an University of Architecture and Technology
Course: Architecture and Civil Engineering
Keywords: solar energy heating strengthen ventilation solar house heat storagematerial energy conservation
CLC: TU83
Type: Master's thesis
Year: 2013
Downloads: 24
Quote: 0
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Abstract


Solar technology can be used for buildings in winter for heating, ventilation andcooling in summer and in transition seasons strengthens the natural ventilation. Solarheating ventilation system with auxiliary heat source, a set of equipment can meet theyear of the heating, ventilation and cooling demands, making indoor environmentcomfort requirements. For specific projects, how to design reasonably and controlproperly, can not only save investment, but also produce a significant building heatingand air conditioning energy saving effect.Therefore, the article carry out research based on the principle of solar heating andventilation, combined with specific engineering----ruins of han chang ’an city gatestraight museum project, using "passive" and the "active" solar energy utilization of thedesign thought of the natural environment, on how to use space combination ofarchitectural modeling design and use of the sun room to solve the problem of coolingin summer and heating in winter. Calculation in the design of the sun room in the firstplace, and so in the summer can use indoor air natural convection, as much as possibleto avoid the use of mechanical ventilation system, and the winter under the condition ofthe door tightness good, can make full use of solar energy to realize indoor heatingagain. At the same time, in order to ensure the continuity and stability of the solarenergy application, after calculating that the project is proposed to add heat storagematerial in the sun room to the problem of how to store solar energy, to saving theirexcess sun radiate in the day, and used for heating at night or rainy days.This article adopts the numerical simulation software Fluent to simulate room ventilation of the museum under the action of the hot in the sun; The results show thatthe hot pressing role of the sun really has strengthened natural ventilation within themuseum. And in the sun room and not the sun room both cases, analyze Indoortemperature using the Energyplus software. Results show that adding the sun room,indoor temperature is significantly larger than without the sun room. But because of thediscontinuity and instability of solar energy, this give mass of solar energy applicationmore difficulties. Due to the heat storage performance of heat storage materials, indoorbased on room temperature time than the outdoor temperature in maximum andminimum value of the maximum and minimum values of a time is a little delay. Afterthe design and optimization of solar heating and ventilation systems in the constructionof the comprehensive utilization scheme can achieve indoor ventilation and cooling insummer and transition seasons of ventilation requirements.

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CLC: > Industrial Technology > Building Science > Housing construction equipment > Air-conditioning, heating, ventilation,and its equipment
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