发展溴化锂吸收式空调对热电企业的作用

世界工业发达国家已经从热电联产（CHP）向冷热电联产（CCHP）发展,以提高能源利用效率来减轻环境污染和温室效应。我国在着手发展冷热电联产的同时,应将已建成的热电厂根据需要利用溴化锂吸收式空调改造成为冷热电联产,以提高热电厂的经济效益。     

发展溴化锂吸收式空调对热电企业的作用

世界工业发达国家已经从热电联产(CHP)向冷热电联产(CCHP)发展,以提高能源利用效率来减轻环境污染和温室效应。我国在着手发展冷热电联产的同时,应将已建成的热电厂根据需要利用溴化锂吸收式空调改造成为冷热电联产,以提高热电厂的经济效益。     

溴化锂吸收式制冷在热电厂中的应用

通过分析从热电联产(CHP)向热电冷联产(BCH P)发展的趋势,以及在提高能源利用效率、减轻环境污染和温室效应方面的优势.从公司事业部安装的溴化锂吸收式空调系统的实践出发,分析在热电企业中,利用现有管网的优势,根据需要利用溴化锂吸收式空调改造成为热电冷联产,以提高热电企业经济效益的可行性.     

带吸收式制冷的汽轮机热电联产

<正> 许多工业部门或其他部门既需要一定电力,也需要一部分热能。有些单位设置了背压式汽轮机进行热电联产以满足热和电这两方面的需求。为了提高热电联产的效率,足够的热负荷是很重要的。通常热负荷是用于干燥、蒸煮以及冬季供暖等等。在某种条件下,热电联产的热负荷往往不足。近年来,利用低品位蒸汽作为热源的吸收式制冷机在国外已得到普及,在我国的应用也越来越多。今后不但工业部门或者其他部门(如大型宾馆等)有条件的均可采用带吸收式制冷的热电联产,冷天可利用余热进行供暖,热天则由吸收式制冷机利用余热供空调,以及日常过程冷却和冷藏等用。这样就可以大大节省电力,使背压式汽轮机进     

溴化锂吸收式制冷机的应用分析

概述了溴化锂吸收式制冷的原理，分析了溴化锂吸收式制冷机的综合效益及其一次能源利用率，以热电厂热电冷三联供系统为例分析了溴化锂吸收式制冷机的节能效益，并指出了溴化锂吸收式制冷机在工程应用中应注意的问题。     

正确认识溴化锂吸收式冷水机组

通过对溴化锂吸收式冷水机组的特点的分析，以及对溴化锂吸收式冷水机组与蒸发压缩式冷水机组从能耗、经济性和对环境污染程度等各方面的综合比较，使我们对溴化锂吸收式冷水机组有一个系统的认识和正确的评价。     

基于生物质斯特林溴化锂吸收式机组三联供系统能效分析

设计搭建了一套以生物质为一级燃料斯特林热电联产能源利用系统,并对系统中的双效溴化锂机组性能特性进行分析。该系统的斯特林发动机由生物质在大型燃烧炉中燃烧产生高温烟气提供驱动热量,烟气温度为600℃左右,发动机发电,换热后的烟气余热进入溴化锂机组制冷和供热,实现冷热电三联供。系统采用程序监测并采集运行参数,基于200℃左右烟气,计算分析比较单、双效及两级双效溴化锂机组效率和运行特性,最终确立使用两级双效溴化锂机组系统方案。     

溴化锂吸收式机组在空调设计当中的应用

叙述了空调设计中溴化锂吸收式机组及其配套设备选型及应用的情况,结合实际工程深入讲解了整个设计原理及流程,以供在设计、施工时参考。     

太阳热水器-溴化锂吸收式制冷机-高温水源热泵组合式空调机组的设计思路

在多种利用太阳能制冷方式中，溴化锂吸收式制冷系统由于设备较简单，加工要求较低，可在较低的热源温度（如80℃—100℃）下运行，一般使用平板式集热器或高效真空管集热器就可满足要求，是目前最成熟和环保的空调方式之一，也是一种节能的空调方式。     

三效溴化锂吸收式制冷机发展之钥

分析了三效溴化锂吸收式制冷机目前的研发现状，介绍了高效、紧凑、节省优质材料、降低制造成本的采用波纹扳壳式换热器的新方案，有望解决高温腐蚀难题。     

Exergy analysis of lithium bromide/water absorption systems

Exergy analysis of a single-effect lithium bromide/water absorption system for cooling and heating applications is presented in this paper. Exergy loss, enthalpy, entropy, temperature, mass flow rate and heat rate in each component of the system are evaluated. From the results obtained it can be concluded that the condenser and evaporator heat loads and exergy losses are less than those of the generator and absorber. This is due to the heat of mixing in the solution, which is not present in pure fluids. Furthermore, a simulation program is written and used for the determination of the coefficient of performance (COP) and exergetic efficiency of the absorption system under different operating conditions. The results show that the cooling and heating COP of the system increase slightly when increasing the heat source temperature. However, the exergetic efficiency of the system decreases when increasing the heat source temperature for both cooling and heating applications.     

Modelling of a solar-operated absorption air conditioner system with refrigerant storage

A detailed dynamic model of a solar air conditioning system is reported. The model, including the solar collector and cooling tower, is described in terms of design parameters. Ambient wet and dry bulb temperatures and solar radiation are the required inputs. System temperatures, energy flows and coefficient of performance can be predicted. Careful attention is given to the evaporator model and the control of refrigerant flow. Typical performance results are discussed. Finally several recommendations for future investigations are made.     

Modeling water/lithium bromide absorption chillers in ASPEN Plus

Absorption chillers are a viable option for providing waste heat-powered cooling or refrigeration in oil and gas processing plants, thereby improving energy efficiency. In this paper, single- and double-effect water/lithium bromide absorption chiller designs are numerically modeled using ASPEN. The modeling procedure is described and the results are compared to published modeling data to access prediction accuracy. Predictions for the single- and double-effect designs are within 3% and 5%, respectively of published data for all cycle parameters of interest. The absorption cycle models presented not only allow investigation into the benefits of using absorption chillers for waste heat utilization in the oil and gas industry, but are also generically applicable to a wide range of other applications.     

浅谈溴化锂吸收式制冷机的运转性能

本文详尽介绍了外界因素对溴化锂制冷机性能的影响状况 ,以精确的性能曲线图向读者展示了其运转性能特性     

Optimization of energy plants including water/lithium bromide absorption chillers

In this paper a methodology for the optimal integration of water/lithium bromide absorption chillers in combined heat and power plants is proposed. This method is based on the economic optimization of an energy plant that interacts with a refrigeration cycle, by using a successive linear programming technique (SLP). The aim of this paper is to study the viability of the integration of already technologically available absorption chillers in CHP plants. The results of this alternative are compared with the results obtained using the conventional way of producing chilled water, that is, using mechanical vapour compression chillers in order to select the best refrigeration cycle alternative for a given refrigeration demand. This approach is implemented in the computer program XV, and tested using the data obtained in the water/LiBr absorption chiller of Bayer in Tarragona (Catalonia, Spain). The results clearly show that absorption chillers are not only a good option when low‐cost process heat is available, but also when a cogeneration system is present. In this latter case, the absorption chiller acts as a bottoming cycle by using steam generated in the heat recovery boiler. In this way, the cogeneration size can be increased producing higher benefits than those obtained with the use of compression chillers. Copyright © 2000 John Wiley & Sons, Ltd.     

轨道车辆空调逆变电源的研制

根据应用于轨道车辆的一种空调机组设备的特点，研制了满足该种车辆空调供电的逆变电源。介绍了逆变电源的逆变器主电路组成、工作原理、控制系统硬件及软件等，突出了控制系统变频及智能控制的特点。研制样机通过了性能试验，能够满足轨道车辆空调设备的运用要求。     

Intergration of evacuated tubular solar collectors with lithium bromide absorption cooling systems

By surrounding the absorber-heat exchanger component of a solar collector with a glass-enclosed evacuated space and by providing the absorber with a selective surface, solar collectors can operate at efficiencies exceeding 50 per cent under conditions of ΔT/H_T = 75°C m²/kW (ΔT = collector fluid inlet temperature minus ambient temperature, H_T = incident solar radiation on a tilted surface). The high performance of these evacuated tubular collectors thus provides the required high temperature inputs (70–88°C) of lithium bromide absorption cooling units, while maintaining high collector efficiency. This paper deals with the performance and analysis of two types of evacuated tubular solar collectors intergrated with the two distinct solar heating and cooling systems installed on CSU Solar Houses I and III.     

Characteristic analysis of adiabatic spray absorption process in aqueous lithium bromide solution

The absorber is a key component in a thermally-driven absorption system which significantly influences the whole system performance. The adiabatic spray absorption is one type of absorption process, in which the absorption fluid is dispersed into fine droplets having immense surface exposed to the vapor. In the current investigation, an improved analytical Newman model is presented which can consider the absorption heat effect. Using the model, the absorption characteristics of the adiabatic spray in aqueous lithium bromide solution is studied. The results show that the absorption heat significantly affects the absorption process. When the droplet radius decreases, the absorption rate can be improved and the maximum absorption time can be reduced. The current investigation can result in a better understanding of absorption mechanisms of the adiabatic spray absorption.