A Novel Pressure - Exchange Ejector Refrigeration System with Steam as the Refrigerant

摘要将研究压力交换喷射器中复杂的非定常流动过程和诱导机理。拟议工作的目标是确定性能特征和设计信息，使该技术能够用于喷射式制冷系统。这项研究将有一个实验阶段，以确定喷射器中转子、扩散器和喷嘴的最佳设计。还将进行理论和计算分析，以研究喷射器内的流动行为。理论研究的结果将用于指导喷射器的设计。由于喷射式冰箱不使用氯氟化碳，因此从源头上避免了有害流出物，有助于减少有害流出物。该项目由美国国家科学基金会和美国环保署根据环境研究伙伴计划共同资助。

ABSTRACT Complex non-steady flow processes and induction mechanisms in pressure-exchange ejectors will be investigated. The goal of the proposed work is to establish performance characteristic and design information that will allow the technology to be used in ejector refrigeration systems. The research will have an experimental phase to determine the optimal design of the rotor, diffuser, and the nozzle in the ejector. Theoretical and computational analyses will also be carried out to study the flow behavior inside the ejector. Results from the theoretical study will be used to guide the design of the ejector. Because ejector refrigerators are non-CFC based, they contribute to the reduction of hazardous effluents by avoiding them at the source. This project is jointly funded by NSF and EPA under the Partnership for Environmental Research Program.