@inproceedings{3b786b608c69424f8e2ab4ab9d3d7a14,
title = "Performance improvements of R744 Glass door merchandiser using low-cost two-phase ejector",
abstract = "Glass door merchandisers are used in grocery and convenience stores to display chilled beverages or refrigerated foods. Among other possible choices for this application, carbon dioxide (R744, CO2) is seen as a promising low global warming potential (GWP) refrigerant alternative that is non-flammable and non-toxic. Earlier studies demonstrated that it is possible to design high-performance transcritical R744 glass door merchandiser systems that deliver cooling capacities and energy efficiencies that are comparable to results obtained with an R134a baseline system. In this present study, the performance of the R744 refrigeration system has been further improved by implementing a very small-scale ejector, a device that uses the expansion of a high-pressure fluid to provide a pumping effect to a low pressure fluid. A low-cost design has been devised and implemented. Performance of the improved system is compared against the baseline without ejector in terms of energy consumption and production pull-down times.",
keywords = "Glass door merchandiser, Light commercial refrigeration, Low-cost miniature ejector, Transcritical CO",
author = "Neal Lawrence and Stefan Elbel",
year = "2016",
doi = "10.18462/iir.iccc.2016.0005",
language = "English (US)",
series = "Refrigeration Science and Technology",
publisher = "International Institute of Refrigeration",
pages = "33--40",
editor = "Don Cleland and Andrew East and James Carson and Richard Love",
booktitle = "4th IIR International Conference on Sustainability and the Cold Chain, Proceedings",
note = "4th IIR International Conference on Sustainability and the Cold Chain ; Conference date: 07-04-2016 Through 09-04-2016",
}