太阳能固体吸附式制冷循环的热力分析与计算

本文阐述了太阳能作为驱动热源的固体吸附式制冷系统循环过程的工作原理，并对在一定太阳辐射条件下太阳能固体吸附式制冷系统内循环参数之间的影响，系统的ＣＯＰ做了热力分析计算。     

小型吸附式太阳能制冷系统的结构设计

本文结合作者的研制实践，讨论了小型吸附式太阳能制冷系统无阀结构设计中常见的几个问题，提出了应注意的事项和相应的解决办法。结论认为，小型吸附式太阳能制冷系统最好采用无阀结构全封闭自动阀结构设计，中、大型系统则宜采用有阀结构。     

太阳能固体吸附式制冷的研究与进展

本文阐述子利用太阳能作为驱动热源的固体吸附式制冷系统的工作原理及循环过程。     

太阳能驱动的吸附式制冷研究进展

太阳能驱动的吸附式制冷技术是一种能有效利用太阳能，且对环境友好的新型制冷技术。文章对太阳能驱动的吸附式制冷技术的研究现状进行了总结，并对进一步开展太阳能驱动的吸附式制冷系统的研究作了展望。     

新型太阳能吸附式制冷系统研究

提出用玻璃材料（玻璃管）代替金属材料做太阳能吸附式制冷系统的太阳能集热器和吸附床，建立了一套该种系统的试验样机，并在实验里对样机进行了试验研究。试验数据和结果表明，该系统的运行可靠，证明以玻璃管（真空管）做太阳能吸附式制冷系统的集热器和吸咐床是可行的。     

太阳能固体吸附式制冷吸附床的设计

描述了固体吸附式制冷系统中吸附床的作用和功能,比较分析了现有太阳能固体吸附式制冷装置的吸附床。通过两种吸附床装置的具体分析,提出了合理设计太阳能吸附床装置的途径。     

改善吸附式制冷系统的方法研究

从吸附式制冷系统的各部件及热力关系着手，初步分析了一些造成实际循环与理论循环偏离的原因，指出了设计和完善吸附式制冷系统的基本思路和一些关键因素，对吸附式制冷系统的设计和运行调节有一定的指导意义。     

太阳能吸附式制冷技术进展综述

介绍了太阳能吸附式制冷技术的原理与特点，从吸附剂一制冷剂工质对、系统循环方式以及吸附床三个方面详细说明了吸附式制冷技术的进展。通过综合分析指出，优化系统的设计，尤其是对系统关键部件，如吸附床、冷凝器、蒸发器的优化设计，对太阳能吸附式制冷系统的性能非常重要；其次，应加强对性能稳定、操作简便的无阀系统的研究，同时加大对太阳能吸附式制冷与建筑一体化的研究力度，使之符合建筑一体化的要求。最后分析了太阳能吸附式制冷技术的发展前景。     

冷管型太阳能制冷系统

太阳能吸附式制冷作为一种绿色环保型的制冷技术具有良好的应用前景。本文分析了一种吸附床可直接吸收太阳能的、自身完成集热与制冷的玻璃管型太阳能吸附式制冷管,并介绍了以该冷管为基础的太阳能制冷系统。     

降低吸附式制冷系统驱动热源温度的研究进展

吸附式制冷是一种环境友好的制冷方式,可以利用低品位热能提供冷量,因此具有重要的节能意义。目前,吸附式制冷技术在太阳能热利用、工业余热利用等中低温余热领域已有应用,但对低于60℃热源的利用实例较少。降低吸附式制冷系统所需的驱动热源温度是扩大吸附式制冷系统使用范围的重要手段。吸附式制冷系统所需驱动热源温度与系统循环方式、吸附剂性能等因素密切相关。从二级/多级吸附式制冷循环、表面酸性强度与孔结构等影响吸附剂再生温度方面阐述了降低吸附式制冷系统驱动热源温度技术的国内外研究现状。分析结果显示,多级循环吸附式制冷系统可以降低装置的驱动热源温度,但装置结构较为复杂;低再生温度吸附剂能够拓宽吸附式制冷装置的驱动热源温度范围,吸附剂的脱附温度与表面极性、酸性、孔结构等参数有关,对吸附剂进行改性,吸附剂极性弱、酸性低的表面特性有利于降低脱附温度。另外,还介绍了数据中心余热驱动的吸附式制冷技术。开展降低吸附式制冷系统驱动热源温度的研究为低温余热高效利用提供了技术参考。     

小型固体吸附式太阳能空调装置的实验研究

根据小型太阳能空调装置的要求和特点,对固体吸附式太阳能空调系统进行了实验研究。通过对装置运行工况的具体分析,选择硅胶水作为吸附剂与制冷工质,介绍了集热／再生器、空冷冷凝器和蒸发器的结构设计。在此基础上,建立了小型固体吸附式太阳能空调实验装置,并对整个系统的运行性能进行了一系列的实验研究。结果表明,采用硅胶水工质的小型吸附式太阳能空调装置进行间歇式空调,在技术上是可行的,为进一步研究性能的优化提供了依据。     

A review for absorbtion and adsorbtion solar cooling systems in China

In the past decades, solar water collectors were installed for the main purpose of preheating domestic hot water or to cover a fraction of the space heating demand in China. However, solar cooling systems were constructed just for demonstration purposes. Since the building of the first solar-powered absorption cooling system in Shenzhen in 1987, there have been over 10 additional solar cooling demonstration projects constructed. In this paper, the most representative five projects including both absorption and adsorption cooling systems are introduced and summarized. From the demonstrations, solar absorption cooling systems have been shown to be more suitable for large building air-conditioning systems. Comparatively, solar adsorption cooling systems are more promising for small size air-conditioning systems. In order to attain high utilization ratio, it is highly recommended to design solar-powered integrated energy systems in public buildings. In addition, highly efficient heat pumps are considered as the most appropriate auxiliary heat sources for solar cooling systems, for the purpose of all-weather operation. In the 11th Five year research project (duration 2006–2010), solar cooling technologies will be further investigated to achieve a breaking through in the integration of solar cooling systems with buildings.     

Performance of a solar-powered air conditioning system in Hong Kong

To study the feasibility of utilizing solar power for comfort cooling in Hong Kong, a solar-powered absorption air-conditioning system was designed and successfully constructed on the campus of the University of Hong Kong (HKU). The system consisted of a flat-plate collector array with a surface area of 38.2 m², a 4.7-kW nominal cooling capacity LiBr---H₂O absorption chiller, a 2.75-m³ hot-water storage tank, a cooling tower, a fan-coil unit, an electrical auxiliary heater, a data-acquisition system and the associated control systems. In the present paper, the design of the HKU solar-powered air-conditioning system is described in detail and its performance over an entire cooling season is also discussed and compared with similar systems in Italy and Singapore. It was found that the HKU solar air-conditioning system had an annual system efficiency of 7.8% and an average solar fraction of 55%.     

A solar-powered LiBr dual cycle

The absorption system is one of the most suitable techniques for utilising solar energy for air-conditioning purposes. Although it uses solar energy directly with minimum conversion, it consumes considerable quantities of water for the cooling tower. This is a serious disadvantage where solar energy is available whilst water is scarce.The main purpose of this paper is to introduce the lithium bromide (LiBr) absorption cycle which avoids the use of a wet cooling tower. The characteristics of this dual cycle will be examined and new selection criteria for such solar-powered dual absorption systems will be introduced.     

太阳能固体吸收式制冰机的动态模拟——(Ⅰ)反应前锋模型

发展了两个太阳能固体吸收式制冰机的动态模拟程序,差别在于对反应器内的传热过程采用了不同的计算方法,其一采用反应前锋假设,其二采用有限差分方法求解非稳态的热传导方程。本文介绍反应前锋模型。     

A review of solar-powered Stirling engines and low temperature differential Stirling engines

This article provides a literature review on solar-powered Stirling engines and low temperature differential Stirling engines technology. A number of research works on the development of Stirling engines, solar-powered Stirling engines, and low temperature differential Stirling engines is discussed. The aim of this review is to find a feasible solution which may lead to a preliminary conceptual design of a workable solar-powered low temperature differential Stirling engine.Results from the study indicate that Stirling engines working with relatively low temperature air are potentially attractive engines of the future, especially solar-powered low temperature differential Stirling engines with vertical, double-acting, gamma-configuration.     

太阳能空调技术开发利用的评价

介绍了太阳能空调技术的发展历史和现状，着重论述了利用太阳能空调技术进行开发利用的优势和前景。     

平板型与真空管型太阳能热水器发展状况分析

分析了平板型太阳能热水器和真空管太阳能热水器的发展状况,对两种热水器的性能进行了比较,同时对它们的发展趋势做出了展望。