异曲面芯平板热水器

异曲面芯即热平板热水器在宁波晟唐基业科能电器有限公司研制成功（产品专利号：200620103570．4）。独特的异曲面芯技术加大了太阳热水器的集热、换热面积，热效率比普通热水器提高了35％以上，集热温度可达到100℃。     

专利信息

太阳热水器防护罩本实用新型为一种太阳热水器防护罩,它的特征为:由U形底框、不锈钢网、压条和加强筋组成,其大小和太阳热水器相匹配,U形底框上加焊加强筋,在底框和加强筋上用自攻螺丝固定。不锈钢网由0.8～1.5mm的不锈钢丝编织而成,其网眼孔径为20～25mm。底框两侧底边通过固定螺栓固定在太阳热水器的支架上。本专利结构简单、制造容易,可有效防止大块冰雹及其他异物砸坏玻璃集热管,起到保护太阳热水器的作用。(专利权人铜陵市宏安汽车工业有限责任公司授权公告号CN2525437Y)全天候集热装置本实用新型为一种全天候集热装置,它包括内部…     

专利信息——太阳能热利用

太阳热水器集热管尾架,太阳能集热取暖装置,太阳能热水器阳光跟踪装置     

活动式集热墙

活动式集热墙巴特尔，李智经太阳房集热邀在设计时应优化计算确定各项技术乡沙，以最佳配比获得理想热效串，通过操作灵活提高使用率，采取技术革新成少故障轧据考察，多年来自下集热槽的下述两个难困一直困扰着人们。１．上下风口相距太近，影响热效率。在同等条件下，冷...     

不同倾角太阳能热水器北京地区热性能试验研究

为确定北京地区不同倾斜角度对紧凑式全玻璃真空管太阳能热水器的影响,本文对不同倾角太阳能热水器集热性能进行试验分析.试验结果表明,相同辐照情况自然循环时,5°～45°倾角太阳能热水器集热性能较为一致,集热性能较好;60°～ 90°倾角太阳能热水器集热性能有所降低,90°倾角热水器集热性能最低.     

集热方式对全玻璃真空管太阳能热水器性能的影响

为对比分析自然循环竖排管、强制循环竖排管和强制循环横排管3种集热方式对全玻璃真空管太阳热水器有效集热量、平均有效集热效率和瞬时有效集热量等的影响,以3组30支Φ58×1800 mm的全玻璃真空管太阳热水器为研究对象,在兰州地区搭建试验平台,在太阳辐射为19.0~25.7 MJ/m²,风速为0.5~1.3 m/s,平均环境温度为8.9~12.0℃的情况下进行连续5 d的试验。试验结果表明:自然循环竖排管热水器有效集热量和平均有效集热效率比强制循环竖排管热水器分别高6.6~8.3 MJ、10.8%~14.8%;强制循环竖排管热水器有效集热量和平均有效集热效率比强制循环横排管热水器分别高0.9~3.4 MJ、1.6%~5.0%。从有效集热面积、真空管内部换热强度、循环管道热损失共3个方面解释不同集热方式产生差异的原因。     

整体式三筒太阳能热水器

整体式三筒太阳能热水器许昌市农村能源管理站杜英杰许昌市太阳能设备厂李国保整体式三筒太阳能热水器是将集热、蓄热和内循环融为一体。各单体之间由肋片连接，这样既增大了热水器的采光面积，又提高了热水器的抗压、承压能力和热水器的集热效率，使热水器的平均热效率达...     

太阳热水器反光板

从理论上讲，太阳热水器反光板，就是将散射的阳光，让它按照人们为它安排的方向聚集作用于真空管的阴影部分而发挥增加真空管的集热面积的作用。目前市场上众多品牌太阳热水器，有用轧花铝板的，有用不锈钢板、铝合金薄板轧纹的等作为反光型聚光板，经过笔者多次试验比较，它们的反光效果均不如人意，有些甚至就是一块无用的挡风板而已。     

圆柱型碟式太阳能接收器聚光集热耦合实验研究

太阳能热发电系统中聚光、集热协同进行,聚光太阳能能流极不均匀,对能量转换效果有较大影响。为避免太阳直射辐照度的变化对实验结果的影响,采用碟式聚光器和圆柱型接收器,搭建了两套结构一致的实验系统,同时开展聚光和集热实验,提高了实验数据的准确度。接收器采光口能流分布是聚光和集热效率研究的基础,利用水冷式能流密度传感器,在接收器集热实验时同步测量了接收器采光口能流密度分布,通过面积剖分,得到接收器入射能流。开展集热实验,分析了太阳能直射辐照度和工质流量变化对系统集热效率的影响。研究结果表明:随直射辐照度增加,系统入射功率、输出功率和接收器采光口截获功率不断增加,但上升趋势逐渐变缓;聚光器聚光效率、接收器热效率、系统总热效率均呈下降趋势,且斜率逐渐变缓;随着传热工质流量增加,接收器腔内壁面温度下降且温度场梯度变小,减少了接收器热损失,系统输出功率不断加大,总热效率不断提高。     

多重温室法在太阳能热利用中的应用

设计了各种"多重温室",使受光面积远超过太阳能热水器的集热面积,大幅度提高了环境温度、减小了太阳热水器与环境的温差,从而使热效率达90%以上.同时降低了对制造材料的性能要求、延长了使用寿命,因而同时降低了成本.     

太阳能空气集热器(Ⅰ型)的数学模型研究

用数学模型化方法研究了太阳能空气集热器的集热传热性能,建立了基于二维假设下的流体流动和热量传递的稳定态数学模型,并用有限差分法进行数值求解,计算得到稳态下太阳能空气集热器的速度、温度分布图以及集热效率与空气流量、入口空气温度、入身太阳辐照度和表面盖板透过率的关系。结果表明,对Ｉ型太阳能空气集热器,集热效率随空气流量和表面盖板透过率的增加而增大,随入口空气温度和入射太阳辐照度的增大而减小。计算结果与     

蜂窝热管平板式太阳能热水器的实验研究

把蜂窝技术和热管技术结合起来应用于平板式太阳能热水器，可以大大减少热损失，提高日平均效率。经多次实验证明，蜂窝热管平板式太阳能热水器的日平均效率可以比真空管式热水器的高，热损系数则要小很多，具有推广应用价值。     

真空玻璃盖板热管平板式太阳能热水器的研制

介绍了研究成功的采用真空玻璃盖板的热管平板式太阳能热水器，测试了其性能，并与全玻璃真空管太阳能热水器和蜂窝热管太阳能热水器进行了比较。实测得到，真空玻璃盖板热管平板式热水器的日平均效率比后两分别大13．3％和6．5％，平均热损系数比后两分别小52．5％和21．5％。真空玻璃盖板平板式太阳能热水器性能优越，有很好的应用前景。     

Experimental investigation on thermal performance of thermosyphon flat-plate solar water heater with a mantle heat exchanger

The thermal performance of thermosyphon flat-plate solar water heater with a mantle heat exchanger was investigated to show its applicability in China. The effect on the performance of the collector of using a heat exchanger between the collector and the tank was analyzed. A “heat exchanger penalty factor” for the system was determined and energy balance equation in the system was presented. Outdoor tests of thermal performance of the thermosyphon flat-plate solar water heater with a mantle heat exchanger were taken in Kunming, China. Experimental results show that mean daily efficiency of the thermosyphon flat plate solar water heater with a mantle heat exchanger with 10 mm gap can reach up to 50%, which is lower than that of a thermosyphon flat-plate solar water heater without heat exchanger, but higher than that of a all-glass evacuated tubular solar water heater.     

太阳能地面采暖系统蓄热水箱容积分析

通过分析太阳能采暖系统所需蓄热鼍与建筑热负荷、太阳能集热量日变化规律之间的关系,得出太阳能采暖系统所需蓄热水箱容积的理论算式.根据拉萨、银川、西宁、西安等地的太阳辐射强度及建筑热负荷的日变化规律,模拟得出系统所需蓄热量变化规律;并对各种蓄热温差下对应的蓄热水箱容积进行了模拟分析,结果表明:太阳能采暖系统所需蓄热量随太阳集热器的集热量与建筑热负荷之间的差值增大而增加;蓄热水箱容积随蓄热温差增大而减小,当蓄热水温达到80℃时,在各种地面采暖系统取水温度下,单位集热器面积所需蓄热水箱容积趋于相等.     

Performance at Colombo, Ceylon, of a pressurised solar water heater of the combined collector and storage type

A solar water heater combining collection and storage has been tested in Ceylon. The heater consists of a square coil of 3 in. diameter pipe, 44·3 ft in length, in a wooden box with heat insulation at the bottom and two glass covers. The glass surface is 20 ft² in area. If water is drawn off whenever the water reaches 120°F, it is possible to obtain 30–50 gal of water a day, the first draw-off being made about noon. The efficiency of collection based on the exposed glass area on the top of the box (which was 1·55 times larger than the horizontally-projected area of the pipe surface) is around 46 per cent.An equation for the performance of the heat collector over the day was devised, and this was applied by means of a computer program to solar radiation data for the whole year. The results showed that no heat could be collected for less than 10 per cent of the year. The total energy collection for the year was about 1250 kWh.Another computer program compared the performance of the heaters made up of 2, , 3, and 4 in. diam pipes respectively. This study indicated that a heater of to in. diam pipe would provide the best performance for most purposes.     

Performance analysis of solar water heater combined with heat pump using refrigerant mixture

In the research presented in this paper the thermal performance of a solar water heater combined with a heat pump is studied. A solar collector was modified from corrugated metal roofing with a copper tube attached beneath. The performance of the solar water heater was tested, and models for the collector efficiency and storage tank were developed and used for the evaluation of their performance when combined with a heat pump system.     

太阳能电池与热泵热水器联合运行系统性能分析

为了降低太阳能光伏电池的温度,同时提升热泵热水器的蒸发温度,利用循环水路冷却太阳能光伏电池,并将热量传递给热泵热水器的蒸发器,构成联合运行系统。针对杭州市的夏季和冬季气象条件,对该联合运行系统的性能进行了计算,分析了对应不同太阳能电池温度下的系统运行参数的变化情况,包括太阳能电池发电效率和所需换热量,热泵热水器的制热量以及热泵效率等。计算结果表明,该联合运行系统能够同时提高太阳能电池光伏转换效率和热泵效率。     

Thermal performance of integrated collector storage solar water heater with corrugated absorber surface

An investigation is reported of the thermal performance of an integrated solar water heater with a corrugated absorber surface. The thermal performance of the rectangular collector/storage solar water heater depends significantly on the heat transfer rate between the absorber surface and the water, and on the amount of solar radiation incident on the absorber surface. In this investigation, the surface of the absorber is considered to be corrugated, with small indentation depths, instead of plane. The modified surface has a higher characteristic length for convective heat transfer from the absorber to the water, in addition to having more surface area exposed to solar radiation. The corrugated surface based solar water heater is determined to have a higher operating temperature for longer time than the plane surface. It means during the operation of water heater, more solar energy is converted into useful heat. However, this modification has reduces the efficiency of the system marginally.