信息报道(二)

浙江瑞安四中300m2太阳能热水器工程通过验收浙江省瑞安市第四中学位于温州瑞安市率隆镇，占地9hm2，全校共有师生2500多人。1998年5月，该校先在食堂楼顶安装了100m2太阳能热水器，1998年11月的第二期工程又分别在男、女生宿舍各安装100m2，于1998年12月4日通过验收。至此，该校共安装了300m2太阳能热水器，均已投入正常使用。该工程由瑞安市农村能源办公室负责安装调试，采用浙江美大太阳能工业有限公司生产的18管真空管太阳能热水器150台，共投资33．6万元。据统计，该工程是目前我省最大的太阳能热水器使用点。据该校校长叶耀国反映，该…     

分休式太阳能热水器

1分体式太阳能热水器简介 分体式太阳能热水器系统集热部分在室外，其它部分（如水箱、控制器、电加热等部件）在室内，控制直观，使用方便。室外集热器占地面积小，可以安装在屋顶或南阳台，方便高层住宅使用。     

专利信息

太阳能热利用一种分体式太阳能热水器内胆装置专利申请号:CN200920128006.1公开号:CN201522120U申请人:重庆欧凯电器有限公司本实用新型为一种节能型太阳能热水器内胆装置。它包括储水箱和电辅加热装置。储水箱是两个既独立又可以部分连通的分体式储水箱,电辅加热装置安装在其中一个储水箱内;控制水箱断     

太阳能产品标准化图集简述

在太阳能热水器建筑一体化进程中,传统的太阳热水器角色发生了根本变化,由相对独立、与建筑开发商毫无关联、可任意安装的一个装置,变换为与建筑密不可分的建筑构件。因此,太阳能热水系统的设计、营销、安装验收、售后服务等环节需要太阳能设备生产及安装厂家、建筑规划设计部门、建筑开发商等共同参与、探索及完善。住宅建设管理等职能部门将对太阳热水器的安装制定相关的法规,以引导太阳能热水器行业的健康发展。     

太阳能热水器水箱先放出高温水的装置

一装置的构造单纯的太阳能热水器(指不与电能及其他能源结合的热水器)的进水方式有手动、电动和机械等,机械式自动进水装置带有副水箱。因进出水管的数量和安装位置各不相同,太阳能热水器水箱先放出高温水的装置对手动和自动都适用。本文选择在最简单的手动型进出水的水箱上来表示本装置。太阳能热水器水箱先放出高温水的装置主要由出水管1和7、浮球2、可转动管接头8等部件构成,结构示意图如图1所示。图中水箱进、出水管合二为一,安装于水箱底部。若采用机械式自动进水装置,则无需溢流管5,其副水箱的接口9为备用。     

一种机械式半自动太阳能热水器上水装置

针对现有太阳能热水器上水装置难以满足低能耗、低故障率的需求,对太阳能热水器上水装置及上水过程进行了研究,设计了一种机械式半自动太阳能热水器上水装置,内部采用卷曲弹簧触动控制装置,实现自动关闭上水阀门,解决了其他上水装置故障率高、能耗大、结构复杂等问题。实验结果表明:该机械式半自动太阳能热水器上水装置在上水过程中具有较强的可靠性和适应性,可运用于不同领域。     

太阳能热水器安装方法介绍

近年来，我国太阳能热水器产品日趋成熟，并因其具有节能、安全、方便、卫生等诸多优点而逐渐为广大群众所接受。在热水器市场上，太阳能热水器已占有相当重要的一席，尤其是在气候条件较好的地区，大有与燃气（电）热水器争雄之势，发展前景看好。然而，由于我国太阳能热水器推广的历史不长，发展中受到许多因素的制约。其中太阳能热水器安装方法便是重要的制约因素之一，因而有必要进行专门的研究和改进。太阳能热水器安装方法，看似一个简单的问题，但也具备一定的技术性；更重要的是，安装方法这一环节，直接关系着太阳能热水器自身结构…     

全球太阳能热水器强制安装政策的先锋——巴塞罗那市

太阳能热水器是一种技术成熟、应用广泛的可再生能源产品和建筑节能产品。强制要求在建筑上安装太阳能热水器是近期各国政府较为推崇的一项激励政策,也得到了建筑行业和可再生能源行业的共同认可。目前实施太阳能热水器强制安装政策有以色列、西班牙、爱尔兰和意大利等国家和众多的欧洲城市,我国海南省、深圳市、济南市、邢台市等也开始实施强制安装政策。太阳能热水器强制安装政策的推动和实施经历了从城市到国家、从地方到中央的过程。西班牙巴塞罗那市是欧洲第一个实施太阳能热水器强制安装政策的城市,也是全球太阳能热水器强制安装政策的先锋,本文介绍了巴塞罗那市太阳能城市法令的制定和修订过程、强制安装政策的具体要求、政策实施过程中的经验和教训,希望对推动各地太阳能热水器强制安装政策的制定和实施有所帮助。     

启东出现太阳能热水器安装热

启东出现太阳能热水器安装热［据南通市能源办公室报道〕１９９３年以来，启东城乡出现一股太阳能利用热潮，仅八、九两个月这个市共推广闷晒式、平板式太阳能热水器达１３８０台。目前，居民购买欲望不减，有关部门仍在积极调运，满足市场需要。这个市的居民为什么时兴太...     

分体式太阳能热水器

1 分体式太阳能热水器简介 分体式太阳能热水器系统集热部分在室外,其它部分(如水箱、控制器、电加热等部件)在室内,控制直观,使用方便.室外集热器占地面积小,可以安装在屋顶或南阳台,方便高层住宅使用.     

Performance and testing of large-size solar water heater cum solar cooker

The performance of a novel device has been tested. The device can be used as a collector cum storage type solar water heater during the winter, and, with minor adjustments, it can be used as a hot-box solar cooker. The device can provide hot water at 50–60°C in the evening, which can be maintained at 40–45°C until the following morning. It can also be used for cooking food for about 40 people. The efficiencies of the device as a solar water heater and as a solar cooker have been found to be 67.7% and 29.8%, respectively. The payback period varies between 1.64 to 5.90 years depending on the fuel it replaces. The payback periods are of increasing length with respect to the fuels firewood, coal, electricity, LPG and kerosene.     

Design,development and testing of an improved multipurpose solar energy device

This paper reports the design, development and testing of an improved multipurpose solar energy device. The novel feature of the device is that it can be used as a solar water heater and solar still simultaneously and, when required, as a solar cabinet dryer by incorporating minor changes.     

Collector efficiency improvement of recyclic double-pass sheet-and-tube solar water heaters with internal fins attached

The sheet-and-tube solar water heater is a convenient and common heater to be used as domestic hot water heating. This paper investigates the effects on collector efficiency of a double-pass sheet-and-tube solar water heater with fins attached under various arrayed density. In addition, the number of pair ducts and total mass flow rate are taken into account during the calculation procedure. The theoretical prediction shows that the higher collector efficiency is obtained under the suitable designing and operating parameters. Considerable improvement in collector performance is obtained by employing a recyclic operation with fins attached and under various arrayed density, instead of employing a single-pass flat-plate device. The effect of the recycle ratio, arrayed density and number of fins attached on the collector efficiency enhancement as well as the power consumption increment has also delineated.     

太阳跟踪装置的双模式控制系统

介绍了用于太阳跟踪装置控制系统中的两种控制模式结构、组成和工作原理。对该模式进行适当设置,即可用于太阳能热水器、太阳能屋顶发电、太阳能干燥器、太阳能电池、太阳灶、太阳能空调、太阳能路灯等各种太阳跟踪装置中,实现双模式控制。双模式控制系统具有较强的通用性和适应性。     

Solar water heaters in China: A new day dawning

Solar thermal utilization, especially the application of solar water heater technology, has developed rapidly in China in recent decades. Manufacturing and marketing developments have been especially strong in provinces such as Zhejiang, Shandong and Jiangsu. This paper takes Zhejiang, a relatively affluent province, as a case study area to assess the performance of solar water heater utilization in China. The study will focus on institutional setting, economic and technological performance, energy performance, and environmental and social impact. Results show that China has greatly increased solar water heater utilization, which has brought China great economic, environmental and social benefits. However, China is confronted with malfeasant market competition, technical flaws in solar water heater products and social conflict concerning solar water heater installation. For further development of the solar water heater, China should clarify the compulsory installation policy and include solar water heaters into the current “Home Appliances Going to the Countryside” project; most of the widely used vacuum tube products should be replaced by flat plate products, and the technology improvement should focus on anti-freezing and water saving; the resources of solar water heater market should be consolidated and most of the OEM manufacturers should evolve to ODM and OBM enterprises.     

Simulation of a solar domestic water heating system using a time marching model

This paper presents the modelling and simulation of a solar water heating system using a time marching model. The results of simulations performed on an annual basis for a solar system, constructed and operated in Yugoslavia, which provides domestic hot water for a four-person family are presented. The solar water heater consists of a flat-plate solar collector, a water-storage tank, an electric heater, and a water-mixing device. The mathematical model is used to evaluate the annual variation of the solar fraction with respect to the volume of the storage tank, demand hot water temperature required, difference of this temperature and preset storage tank water temperature, and consumption profile of the domestic hot water demand. The results of this investigation may be used to design a solar collector system, and to operate already designed systems, effectively. The results for a number of designs with different storage tank volumes indicate that the systems with greater volume yield higher solar fraction values. The results additionally indicate that the solar fraction of the system increases with lower hot water demand temperature and higher differences between the mean storage water and the demand temperatures. However, when a larger storage tank volume is used, the solar fraction is less sensitive to a variation of these operation parameters.     

Performance study of thermosyphonic circulation solar water heaters using packed bed collectors

In the present investigation the performance behaviour of thermosyphonic circulation solar water heaters using packed bed collectors has been analysed. Iron chips, gravels and stones have been used as packing materials. Average tank water temperature, collector as well as system efficiency and mony pay-back for these packed bed solar water heaters are compared with those for solar water heater using a plane collector. Experimental results reveal that the performance of solar water heater improves appreciably by packing its collector with packing material. Among the packed-bed solar water heaters tested the iron chips packed-bed solar water heater gives the overall best performance.     

带有内插棒的全玻璃真空管太阳热水器的实验研究

对一种带有内插棒的全真空集热管和由其构成的热水器进行了实验研究。结果表明，该管热容小、启动快、传热和流动性好，热水器的热效率和水利用率较高，防冻抗冻性能优良。     

基于能量梯级利用的太阳能冷热联供系统

从能量梯级利用的角度出发，提出了一种新型太阳能冷热联供复合系统。该复合系统可根据太阳辐射强度在不同的季节分别用作单一的太阳能热水器、热泵热水器或太阳能吸附式冷热联供复合系统。建立了相应的数学模型，计算了该系统在不同季节各种典型工况下的性能指标。计算结果表明，该系统不仅可实现冷热联供的双重功能，而且具有较大的节能潜力。     

光控非承压分体式太阳能热水器设计及应用

光控非承压分体式太阳能热水器利用光照强弱及持续时间自动控制水流的无压力循环、回流,采用集热管底部进水,集热管与水直接进行热交换,较好地克服了一体式太阳能热水器的集热管易结垢、水箱保温性能差、使用范围窄及承压分体机易泄漏、价格昂贵等缺点,采用微压传感器实时控制各种用水需要,避免了承压分体机所采用的冷水顶热水方法的局限性。通过对整机的结构、工作原理、控制程序及应用实例的详细论述,阐明了该机不仅具有承压分体机的广泛适应性,而且具有非常高的性价比和极低的自身能耗。