【作者】 石刚；

【导师】 胡文斌；

【作者基本信息】 华南理工大学 ， 供热、供燃气、通风及空调工程， 2014， 硕士

【摘要】 已有众多学者对不同形式的温湿度独立控制空调系统的节能潜力进行了分析。但许多研究人员在分析节能潜力的时候忽略了以下两个问题：第一，高温冷水机组并不能全年都能够实现高温出水工况运行，所以必须要对其全年的综合能效比进行修正。第二，控制湿度所选用的新风机组和干式末端的阻力与常规空调系统不同，新风机组和干式末端的阻力变化所引起的能耗变化没有考虑到综合能效比的计算中去，这就导致了分析计算得到的节能潜力与实际理论上的节能潜力还存在一定偏差。本文以华南地区的办公建筑为研究对象，在对上述两个问题进行修正的前提下，着重研究了四种不同形式的温湿度独立控制空调的节能潜力。具体来说本文的主要研究工作可以分为以下三大部分。第一部分：从理论上分析不同形式的温湿度独立控制空调系统的运行原理，并着重分析不同形式的温湿度独立控制空调系统的除湿原理的差别。得到高温冷源+双温冷源新风机组和高温冷源+溶液新风机组除湿是比较适用的温湿度独立控制空调形式。第二部分：先是研究不同形式温湿度独立控制空调系统的负荷处理策略和新风机组、干式末端设备的阻力变化，再对高温冷水机组的全年实际运行能效比进行修正，修正后的高温冷水机组全年综合能效要降低3%。最后综合计算不同形式的温湿度独立控制空调系统的全年能耗，并分析出不同温湿度独立控制空调系统的节能潜力，得到高温冷源和预冷型双温冷源新风机组、热回收型双温冷源新风机组、预冷型溶液除湿新风机组、热回收型溶液除湿新风机组的节能率分别为：18.6%，18.8%，20.2%，19.1%。第三部分：分析了在温湿度独立控制空调系统的室外计算参数选取时，建议根据保证率选取室外湿度的计算值。并提出了温湿度独立控制空调系统与常规空调系统在设计和运行上的不同点，可以为实际的温湿度独立控制空调系统工程的设计和运行提供参考。更多还原

【Abstract】 Many scholars have analyzed the energy saving potential of temperature and humidityindependent control of air-conditioning systems. However, many researchers ignored thefollowing two problems in the analysis of the energy saving potential: Firstly, thehigh-temperature chillers are not able to achieve high temperature water condition all yeararound, it is necessary to modify the annual integrated energy efficiency ratio. Secondly, thefresh air units to control humidity and dry extremity resistance are different from traditionalair conditioning systems, the changes of energy consumption caused by the changes fromfresh air units and dry extremity resistance have not been taken into account.This leads to theenergy-saving potential some deviations exist between calculation and actual theoreticalanalysis. Taking an office building in Southern China as the research object, under thepremise of modifying above two problems, this Paper focuses on the research of the energysaving potential of four kinds of temperature and humidity independent control ofair-conditioning systems. Specifically, the main research work of this Paper can be dividedinto the following three Parts.Part I: Analysis the operation principle of different forms of temperature and humidityindependent control of air-conditioning systems, and focus on the analysis ofdehumidification principle deviation between different forms of temperature and humidityindependent control of air-conditioning systems. Get the conclusion that high temperaturechillers+double temperature cold source new air handling units and high temperature chillers+liquid desiccant air units solution are suitable temperature and humidity independent controlof air-conditioning systems forms.Part II: First, Conduct research on Processing load and changes of resistance in fresh airunits and dry extremity equipment resistance; and then, modified the annual actual operationenergy efficiency ratio of high temperature chiller which reduced by3%after modified;Finally, calculate the annual energy consumption of different forms of temperature andhumidity independent control of air-conditioning systems, and analyze the energy savingpotential of different temperature and humidity independent control of air-conditioning systems, get the conclusion that energy saving rates of high temperature and pre-coolingdouble-temperature cold source of fresh air units, heat recovery double-temperature coldsource of fresh air units, pre-cooling liquid desiccant air handling units, heat recovery liquiddesiccant air handling units are:18.6%,18.8%,20.2%,19.1%.Part III: Indicated that when we are in the design of temperature and humidityindependent control of air-conditioning systems in the southern region, it is recommended toselect the outdoor humidity of calculated based on the guaranteed rate. And put forward thedifferences between temperature and humidity independent control of air-conditioningsystems and conventional air conditioning systems in the design and operation which canprovide the reference for the design and operation of actual temperature and humidityindependent control of air-conditioning systems engineering.更多还原