进行了计算流体力学（CFD）模拟，以量化在机房内不同尺寸的制冷机泄漏易燃制冷剂期间减轻易燃性风险所需的通风稀释要求，这是对大型制冷机之前工作的延伸。在本研究中，使用CFD对376 m³的机房配置进行建模，以模拟制冷剂充注量小于600 kg的制冷机的主要易燃制冷剂泄漏。评估了三种不同泄漏率和不同通风率的奶状可燃制冷剂，以了解稀释要求，防止制冷剂可燃物大量积聚。 这些结果将根据先前发布的机房通风要求进行讨论，以缓解大型制冷机的持续泄漏，并用于建立一个通用的紧急通风率关系，该关系用于缓解整个制冷剂充注范围内机房内主要制冷剂泄漏的风险。引用:2018年年度会议，德克萨斯州休斯顿，会议论文

Computational fluid dynamics (CFD) simulations were undertaken to quantify ventilation dilution requirements needed for mitigating flammability risks during leaks of flammable refrigerants from different size chillers inside machine rooms in extension of the prior work for very large chillers. For this study, a 376 m3machine room configuration was modeled using CFD to simulate major flammable refrigerant leaks from a chiller with refrigerant charge less than 600 kg. Three different mildy flammable refrigerants with various leak rates and various air ventilation rates were evaluated to understand dilution requirements to prevent significant refrigerant flammable mass accumulation. These results will be discussed in light of previously published machine room ventilation requirements for mitigating sustained leaks from large chillers, and used to establish a generalized relationship for the emergency ventilation rate needed for mitigating risks for major refrigerant leaks inside machine rooms for the full range of refrigerant charges.