本产品是一个zip文件，其中包含与扬声器音频录制同步的PowerPoint幻灯片、幻灯片的PDF文件和仅音频（mp3格式）文件，如前所述。蒸汽压缩技术主要依靠高效压缩机来满足热负荷和冷负荷要求。制造技术和计算资源的进步，以及对制冷剂和能源效率的要求，推动了对下一代压缩机的搜寻。本次研讨会将重点讨论用于热泵应用的容积式和涡轮式压缩机的设计优化和挑战，特别强调低GWP制冷剂解决方案和替代集成解决方案。大型商用和热泵系统中的涡轮压缩机和低GWP制冷剂丹佛斯涡轮压缩机有限公司的Drew Turner和Leping Zhang。 ，Tallahassee，FL低GWP共沸混合物在水源热泵设备上的热力学行为Saad Saleem，学生成员1和Craig Bradshaw，博士，成员2，（1）俄克拉何马州立大学（OSU），俄克拉何马州斯蒂尔沃特，（2）俄克拉何马州立大学，斯蒂尔沃特，俄克拉何马州直流住宅热泵案例Jonathan Ore，学生成员，Davide Ziviani，博士，成员和Eckhard Groll，宁博士。，ASHRAE研究员，普渡大学，西拉法叶，煽动:ASHRAE 2021虚拟研讨会

This product is a zip file that contains files that consist of PowerPoint slides synchronized with the audio-recording of the speaker, PDF files of the slides, and audio only (mp3 format) as noted.Vapor compression technologies heavily reply on high-efficient compressors to meet the heating and cooling load requirements. Advances in manufacturing techniques and computational resources along with refrigerant and energy efficiency requirements are driving the hunt for the next generation compressors. This seminar will focus on design optimizations and challenges of both positive displacement and turbo-compressors for heat pumping applications with particular emphasis on low-GWP refrigerant solutions and alternative integrated solutions.Turbo Compressors and Low-GWP Refrigerants in Large Commercial and Heat Pump SystemsDrew Turner and Leping Zhang, Danfoss Turbocor Compressors, Inc., Tallahassee, FLThe Thermodynamic Behaviour of Low-GWP Zeotropic Mixtures on Water-Source Heat Pump EquipmentSaad Saleem, Student Member1 and Craig Bradshaw, Ph.D., Member2, (1)Oklahoma State University (OSU), Stillwater, OK, (2)Oklahoma State University, Stillwater, OKThe Case for DC Powered Residential Heat PumpsJonathan Ore, Student Member, Davide Ziviani, Ph.D., Member and Eckhard Groll, Dr.Ing., Fellow ASHRAE, Purdue University, West Lafayette, IN