蒸发冷却空调冷水集成系统

介绍风侧蒸发冷却空调技术与水侧蒸发冷却空调技术的异同之处,以蒸发冷却空调冷水集成系统的形式介绍水侧蒸发冷却空调设备类型,并对其在实际工程中的应用进行分析,以期为业内人士对水侧蒸发冷却空调技术的认识提供一些参考。     

蒸发式冷凝在制冷工艺上的应用

分析对比制冷工艺中几种冷凝方式，指出发展蒸发式冷凝技术对制冷系统节能的重要意义；通过分析蒸发式冷凝的换热机理，在试验和实践的基础上讨论了影响蒸发式冷凝器性能的几个重要因素。     

国外直接蒸发冷却空调标准的分析

介绍国外直接蒸发冷却空调标准的发展情况,详细阐述美国直接蒸发冷却空调技术标准和澳大利亚直接蒸发冷却空调产品标准,为国内直接蒸发冷却空调标准的制定提供参考,并提出制定我国直接蒸发冷却空调标准的基本思路。     

蒸发冷却空调技术发展动态

介绍了我国蒸发冷却空调技术的发展简况,以及国内外的研究状况和国内产业化进程,并提出了今后我国蒸发冷却空调技术的发展趋势。     

浅析风侧蒸发冷却空调技术术语

风侧蒸发冷却空调技术作为一种绿色空调方式,以其节能、环保、经济、健康的特点在我国得到了广泛的推广应用,是蒸发冷却空调技术发展的起源形式,在我国具备了成熟的推广条件。本文介绍了利用该技术制备冷风的四种设备形式,即直接蒸发冷却空调机组、间接蒸发冷却空调机组、间接一直接蒸发冷却复合空调机组、蒸发冷却—机械制冷联合空调机组。通过对术语的探讨和设备形式的介绍,希望此技术能更加规范地被大家推广使用。     

蒸发冷却空调技术的诠释（2）

分析蒸发冷却空调技术对室外空气可实现的3种基本热湿处理过程：等焓加湿、等湿冷却和减湿冷却过程,以及对室外空气的净化功能,并详细介绍集中式、半集中式和分散式蒸发冷却空调系统及其相应设备。     

蒸发式冷凝/冷却技术的应用及研究进展

分析蒸发式冷凝/冷却技术的换热机制及优势,介绍该技术在国内外制冷行业中的应用情况,总结蒸发式冷凝/冷却技术在工业物料冷却、闭式冷却等系统中的推广应用,对工程设计中出现的问题进行分析并给出解决方法,同时提出新的发展思路。     

蒸发冷却空调技术标准综述

介绍国内外蒸发冷却空调技术标准现状和特点,分析我国蒸发冷却空调技术领域标准化的工作特点及发展趋势,对近几年我国蒸发冷却空调技术标准化工作进行说明,并提出今后工作的设想。     

蒸发冷却空调技术的诠释(3)

从经济器角度对蒸发冷却空调系统进行阐述,蒸发冷却空调经济器系统可以分为风侧经济器系统和水侧经济器系统,其作用是尽量利用室外的干空气制取冷风或冷水为室内供冷,减少机械制冷系统的运行时间或运行容量,从而降低能耗。     

蒸发冷却与机械制冷相结合的半集中式空调系统的探讨

以西安某多层建筑为实体,进行蒸发冷却与机械制冷相结合的半集中式空调系统设计,系统采用的设备主要包括蒸发冷却冷水机组,风冷热泵,蒸发冷却新风机组,干工况风机盘管,并将设计方案与其他传统空调设计方案进行对比。结果表明,采用蒸发冷却与风冷热泵相结合的半集中式空调系统比传统的半集中式空调系统更节能,降低运行成本,同时这一工程的应用也为蒸发冷却半集中式空调系统在中湿度地区的应用奠定了基础。     

冷水机组和大型空调器的世界发展趋势

值得注意的信息 回顾关于冷水机组和大型空调设备的最近事件，有一连串令人震惊的，包括江森控制器公司（Johnson Controls）出乎意外的收并York公司的信息。同时中国作为巨大市场和生产基地、研发中心的存在也变得愈益引人注目。开利、顿汉一布什、特灵和约克都已经在那边建立了它们的研发中心。     

自然工质在制冷空调领域里的应用分析

本文针对自然工质在制冷空调领域的应用背景进行了分析,并具体分析了氨、碳氢化合物、二氧化碳和水作为制冷工质的特点、应用范围和技术关键;针对不同自然工质应用中的问题,提出了相应的技术措施和具体的循环方式;指出了从对环境的长期影响来看,在制冷空调领域,自然工质将最终取代人工合成类制冷工质。     

氮气循环制冷实现空分设备裸冷

根据生产需要,提供了利用氮气循环制冷实现空分设备裸冷的工艺方法,分析了实施过程中的注意问题;优化裸冷操作,降低能耗,节约成本。     

氮气循环制冷实现空分设备裸冷

根据生产需要，提供了利用氮气循环制冷实现空分设备裸冷的工艺方法，分析了实施过程中的注意问题；优化裸冷操作，降低能耗，节约成本。     

Impact of CFC regulations on the air conditioning and refrigeration industry

I welcome the opportunity to speak about a subject of great importance to our industry. The biennial conferences at Purdue have acquired a justified reputation for substance and excellence, and I'm glad to see the large attendance. Given the recent significant developments pointing toward possible further CFC restrictions and the continuing need for high efficiency compressors, the conferences take on a greater significance than ever. Everyone in our industry, and indeed all people in the world who depend upon the products we provide, face some difficult choices and possibly some disruptions during the next decade or two as we shift away from refrigerants that have been used for more than 50 years. With modern technology, and with ingenuity and determination, we should be able to find alternative ways of refrigerating. But it will take time. It will not be easy. We have an enormous investment in current technology and a vast worldwide inventory of equipment which will continue to need service for years. Will we be given the time needed to accomplish the transition? How do we do it? How long will it take? What are the implications if our governments, responding to public concerns, insist on rapidly terminating production of CFC refrigerants? I don't anticipate that I can answer those questions completely in this presentation, but I will attempt to identify the main concerns as I see them and suggest some actions which we should all be considering in responding to this developing issue.     

Energy and exergy comparison of a cascade air conditioning system using different cooling strategies

A cascade air conditioning system consisting of a compression and an absorption chiller working in a parallel arrangement has been proposed. This system is powered up by a micro-gas turbine. Different cooling strategies are studied in order to recognize the best configuration. The system components have been modeled and analyzed through the energy and exergy approaches. The performance parameters of the systems and the second law efficiency have been calculated in different operating conditions. Water consumption of the systems has also been investigated, considering water as a source of exergy. The results revealed that a system with water-cooled chillers has the highest second law efficiency and water consumption. On the other hand, the water consumption of a system with an air-cooled absorption and a water-cooled compression chiller is about 50% less than that of the system with two water-cooled chillers while its second law efficiency is only about 10% less.     

The nocturnal cooling of water used for refrigeration precooling

The high power demand of refrigerators used to cool milk can be reduced by more than half, if plate heat exchangers and water are used to precool milk. This paper describes the nocturnal cooling of reusable precooling water. The technique has applications in areas where power distribution authorities are unable to supply the electricity to run large refrigeration compressors or recover the cost of high peak load reticulation. Nocturnal cooling also makes precooling possible on farms where water is not abundant during summer months.     

间接蒸发冷却-喷射制冷一次回风空调系统分析

本文提出一种以干空气能与低品位能源联合驱动的间接蒸发冷却-喷射制冷一次回风空调系统,介绍系统工作原理及流程,建立系统数学模型,并分析一次回风空调系统(间接蒸发冷却—喷射制冷)主要性能随新风比从0.2到1的变化情况,当新风比逐渐减小时,蒸发器空气侧进口温度、工作流体、引射流体质量流量均逐渐减小,制冷剂的蒸发温度和引射流体与新风质量流量比均逐渐增大。在满足相同室内空调冷负荷需求时,一次回风空调系统(新风比0.2)跟直流式空调系统相比,总制冷量可减少59.3%,耗电量可节省52.7%,具有相当大的节能效益,值得进一步实验研究。