本文介绍了各种超市制冷系统的能源和生命周期气候性能（LCCP）分析，以确定具有低环境影响和高能效的设计。EnergyPlus被用于模拟美国不同气候区的制冷系统。所建模的制冷系统包括传统的多路DX系统、带有二次回路的复叠系统和跨临界CO2系统。此外，还研究了多种制冷剂，包括R-32、R-134a、R-404A、R-1234yf、R-717和R-744。LCCP分析用于确定各种制冷系统在其使用寿命内运行产生的直接和间接二氧化碳排放量。我们的分析表明，与基准的多路DX系统相比，高效超市制冷系统可以减少高达44%的能耗，减少78%的二氧化碳排放。 对于立法者、政策制定者和超市业主来说，这是一个令人鼓舞的结果，他们可以选择低排放、高效率的商业制冷系统设计，用于未来的改造和新项目。引文:美国丹佛市ASHRAE会议论文

This paper presents energy and life cycle climate performance (LCCP) analyses of a variety of supermarket refrigeration systems to identify designs that exhibit low environmental impact and high energy efficiency. EnergyPlus was used to model refrigeration systems in a variety of climate zones across the United States. The refrigeration systems that were modeled include the traditional multiplex DX system, cascade systems with secondary loops and the transcritical CO2system. Furthermore, a variety of refrigerants were investigated, including R-32, R-134a, R-404A, R-1234yf, R-717, and R-744. LCCP analysis was used to determine the direct and indirect carbon dioxide emissions resulting from the operation of the various refrigeration systems over their lifetimes. Our analysis revealed that high-efficiency supermarket refrigeration systems may result in up to 44% less energy consumption and 78% reduced carbon dioxide emissions compared to the baseline multiplex DX system. This is an encouraging result for legislators, policy makers and supermarket owners to select low emission, high-efficiency commercial refrigeration system designs for future retrofit and new projects.