【作者】 崔文盈；

【导师】 郑洁；

【作者基本信息】 重庆大学 ， 供热、供燃气、通风及空调工程， 2007， 硕士

【摘要】 鉴于当前我国建筑节能的紧迫性,温湿度独立控制溶液除湿空调系统作为新型空调系统越来越受到人们的重视。在该系统中,能否提供除湿溶液再生所需的大量廉价热量,是决定该系统能否得到大力推广的关键因素。作者提出:回收冷凝器的散热量用来作为除湿溶液再生所需的热源,从而实现新型空调系统的节能运行。本文围绕温湿度独立控制溶液除湿空调系统的理论研究及技术方案论证,主要开展了以下几个方面的研究工作:①介绍了温湿度独立控制溶液除湿空调系统。②通过对除湿溶液特性的分析比较,选择了氯化锂溶液作为除湿溶液的研究对象;利用热质交换的理论方法,建立了除湿/再生数学模型。③在建立的除湿/再生数学模型基础上,通过改变除湿器/再生器中入口参数值,进行了模拟计算;分析了除湿过程和再生过程中相关的影响因素及其影响趋势;从溶液除湿系统整体的角度,对系统中溶液温度、浓度和流量进行了估算分析。④以重庆市某办公楼作为模拟分析对象,建立了空调系统方案——“初级方案1”。在“初级方案1”的基础上,创新性地提出了“改进方案A”和“改进方案B”。在“改进方案A”中,对“初级方案1”进行了三处改进和节能性论证。“改进方案B”与“初级方案1”相比,在设定的计算条件下,除湿溶液再生对其它废热需求量可节约33.38%。⑤创新性地提出了温湿度独立控制溶液除湿空调系统总的冷源设备热力系数概念。创新性地提出了利用高温热水热泵技术提供溶液再生所需热量的空调系统方案——“初级方案2”。得出,在设定的计算条件下,该方案中系统总的冷源设备热力系数值比传统的空调系统的冷源设备热力系数提高了18.6%。在“初级方案2”的基础上,创新性地提出了“改变方案C”和“改进方案D”,并对这两种方案进行了节能性论证。⑥介绍了利用高温冷水机组的冷凝器散热提供溶液再生所需热量的方案——“初级方案3”,创新性地提出了相应的系统总的冷源设备热力系数计算方法。在“初级方案3”的基础上,创新性地提出了“改进方案E”,并进行了节能性论证。得出,在设定的计算条件下,“改进方案E”中系统总的冷源设备热力系数比“初级方案3”中系统总的冷源设备热力系数提高了22.2%,比传统空调系统的冷源设备热力系数提高了77.8%。⑦提出了冷凝热回收联合太阳能光/热技术应用于溶液除湿系统的初步方案,简单介绍了“改进方案F”和“改进方案G”。通过本论文的初步研究发现,在温湿度独立控制溶液除湿空调系统中,回收冷凝器的散热量用来作为除湿溶液再生所需热源的方案具有很大的节能潜力和开发价值。更多还原

【Abstract】 Recently, building energy-efficient become more important than anytime before in our country, the independent humiture control & solution desiccant air-conditioning system as the new air-condition receives more and more people’s value.In this system, whether provides massive inexpensive heats for the need of solution regeneration is the most important, and also decides whether this system obtains large-scale application. The article mainly proposes that the condenser heat recovery is used to for the solution regeneration, thus the new air-conditioning system which can save energy consumption can be achieved application.This article revolved the scheme of independent humiture control & solution desiccant air-conditioning system linking with condensation heat recovery technology, and mainly has done some research on the following aspects:①Introduced the the independent humiture control & solution desiccant air-conditioning systems in brief.②Analyzed the characteristics of desiccant solutions, and choosed LiCl solution as the desiccant solution in the; Used the heat and humidity exchange theory method to establishe correct mathematical model of desiccation and regeneration.③Analyzed the influence and tendency of the process of desiccation and regeneration; analysed the temperature, the concentration, and the flux of LiCl solution in solution desiccant system.④Taked an office building in Chongqing as the study object, and established the air-conditioning system scheme-No.1 primary scheme. Proposed betterment-scheme-A and betterment-scheme-B on the foundation of No.1 primary scheme. In the betterment-scheme-A, there has made three improvements on the foundation of No.1 primary scheme. In the betterment-scheme-B, the heat requirement in the process of regeneration can decrease 33.38% compared with that in No.1 primary scheme.⑤Proposed total chilled water equipment thermo-coefficient concept of the independent humiture control & solution desiccant air-conditioning systems. Proposed the scheme that using heat pump to provide heat need of solution regeneration-No.2 primary scheme. Proposed change scheme C and betterment scheme D. On the foundation of No.2 primary scheme, discussed the energy-efficient traits of change- scheme-C and betterment-scheme-D. ⑥Proposed the scheme that using condensation heat recovery of high temperature chilled water equipment to provide heat need of solution regeneration-No.3 primary scheme, and proposed total chilled water equipment thermo- coefficient concept of the systems of No.3-primary-scheme. On the foundation of No.3-primary- scheme, discussed the energy-efficient traits of betterment-scheme-E. And educed that systems total chilled water equipment thermo-coefficient of betterment-scheme-E increased 22.2 percent relative to No.3 primary scheme, and added 77.8 percent relative to the traditionall air-condition system.⑦Proposed the idea that the condensation heat recovery linking with solar energy light/heat transformation technology are applied in the solution desiccant system, and introduced betterment-scheme-F and betterment-scheme-G.Through the primary study in the paper, discovered that the scheme that using condensation heat recovery to provide heat need of solution regeneration have great energy saving potential and development value.更多还原