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Small cooling capicity hybrid refrigeration system using R723

采用R723的小冷量混合制冷系统

基本信息

批准号：
EP/J000876/1
负责人：
Zacharie Tamainot-Telto
金额：
$ 49.74万
依托单位：
University of Warwick
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2012
资助国家：
英国
起止时间：
2012 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FJ000876%2F1
关键词：
Small cooling capicity hybrid refrigeration

项目摘要

In the past two decades, concern about the impact of CFCs, HCFCs or CO2 emissions on the environment and in particular on the ozone layer and global warming phenomena has reactivated interest in Sorption Technology applied to heat pumps and refrigerating systems. This is for two main reasons: the refrigerants used (ammonia, water or alcohols) are less harmful to the environment (zero Global Warming Potential - GWP and zero Ozone Depletion Potential - ODP) and the systems are heat driven therefore could use 'free' or low cost heat sources such as solar energy, biomass or waste heat (domestic or industrial). With EU regulations aimed at enforcing the Kyoto Protocol and the rising cost of the primary sources of energy (Oil and Gas) worldwide, the need for environmentally friendly and highly efficient heat pumps and refrigerating systems is required. The current project proposes a Hybrid Refrigeration System using the environmentally friendly refrigerant R723 (azeotropic mixture: 40% DME and 60% Ammonia) that is compatible with conventional refrigeration copper alloy (CuNi10) It is a Combined Sorption-Vapour Compression Refrigeration System driven by a dual source (heat and/or electricity). Both the use of this refrigerant in an adsorption cycle and the hybrid energy source are key novelties.Numerous Hybrid Refrigeration System layouts are to be modeled in association with the development of system control strategy. A proof of concept prototype of 10 kW cooling capacity will be designed, built and its performance (COP and cooling power) evaluated.

在过去的二十年中，对CFC、HCFC或CO2排放对环境，特别是对臭氧层和全球变暖现象的影响的关注重新激发了对应用于热泵和制冷系统的吸附技术的兴趣。这有两个主要原因：所使用的制冷剂（氨、水或酒精）对环境的危害较小（零全球变暖潜势- GWP和零臭氧消耗潜势- ODP），并且系统是热驱动的，因此可以使用“免费”或低成本热源，如太阳能、生物质或废热（家用或工业）。随着欧盟法规旨在执行《京都议定书》以及全球主要能源（石油和天然气）成本的上升，需要环保且高效的热泵和制冷系统。目前的项目提出了一种混合制冷系统，使用环保制冷剂R723（共沸混合物：40% DME和60%氨），与传统的制冷铜合金（CuNi 10）兼容。这是一种由双源（热和/或电）驱动的联合吸附-蒸汽压缩制冷系统。在吸附循环中使用这种制冷剂和混合能源都是关键的新颖性。许多混合制冷系统的布局将与系统控制策略的发展相关联。将设计、建造一个10 kW冷却能力的概念验证原型，并对其性能（COP和冷却功率）进行评估。