摘要我国建筑能耗约占总能耗的25%,开发和使用可再生能源,是解决能源危机的有 效途径。我国大多数采暖地区太阳能资源丰富,而利用太阳能采暖是一项符合可持续 发展战略的技术。
本文为银川市某别墅太阳能空调、采暖系统设计。银川市某别墅属小型住宅建筑,总建筑面积946。08�2,地上两层带阁楼,无地下室,建筑高度9。600m。全楼冬季 热负荷18。76kW,夏季总冷负荷为13。53kW,采用太阳能热水系统为制冷、采暖热源,采暖系统为低温热水地板辐射采暖系统;空调系统为溴化锂吸收式空调系统。系统主 要由8大部分组成:太阳能集热器、蓄热水箱、空调水箱、辅助热源、溴化锂吸收式 制冷机、室内末端装置、地板辐射采暖装置。以冬季作为设计工况,在冬季热负荷计 算的基础上完成地板辐射采暖的设计,并通过计算南向坡屋面的采暖季日平均太阳辐 射强度计算出所需集热器面积,选定辅助热源为燃气壁挂炉。在夏季冷负荷的基础上 完成风机盘管空调系统的设计。83988
毕业论文关键词:太阳能空调系统;溴化锂吸收式空调;地板辐射采暖;集热器
Abstract China's building energy consumption accounts for 25% of the total energy consumption, in the cold area。 The development and use of renewable energy, is an effective way to solve the energy crisis。 China's most abundant solar energy resources the heating area, and the use of solar heating is a strategy of sustainable development。
The design of Yinchuan City, a villa solar air conditioning, heating system design。 To a villa in Yinchuan city belongs to small residential buildings, a total construction area of the building 946。08m^2, ground floor, basement, building height 9。600m。 winter the whole building heat load 18759。43W, summer cooling load for 13530W。 The whole building using solar hot water system for refrigeration, heat source heating, heating system for low temperature hot water floor radiation heating system; air conditioning system for the lithium bromide absorption type air conditioning system。 Solar air conditioning, heating system mainly consists of eight major components: solar heat collector, heat storage water tank, air conditioning water tank, auxiliary heat source, lithium bromide absorption type refrigerating machine, the indoor terminal device, embedded in the floor geothermal coils and a control device。 In the design of the winter heating load calculation based on completed laying geothermal coils, and the south slope of the roof of the heating season, the average solar radiation intensity calculations calculated required collector area, auxiliary heat source is selected for wall mounted gas boiler。 On the basis of cooling load in summer to complete fan coil air conditioning system design。
Keywords:Solar air conditioning; lithium bromide absorption type air conditioning;
fancradiant floor heating; heat collector
目录
第一章 绪论 1
研究背景和意义 1
发展趋势 2
主要研究内容 2
第二章 工程概况及负荷计算 3
工程概况 3
设计依据 3。。。。。。。。。。。。。。 3
室外气象参数 3
室内计算参数 3
围护结构热工性质 4
负荷计算