Paper No 59 – Decarbonizing Steam Generation with High Temperature Heat Pumps: Refrigerant Selection and Flowsheet Evaluation – 14th IEA Heat Pump Conference, Chicago, USA
High temperature heat pumps have a high potential to reduce carbon emissions in industrial processes by replacing conventional heating systems for low-pressure steam generation. However, heat pump performance is sensitive to the selected refrigerant, flow sheet, and operating conditions complicating the design process. Thus, we conduct a refrigerant selection and evaluate five flow sheets for a low-pressure steam application, which heats liquid water from 80°C at 1.5 bar to 120°C steam. First, refrigerants are screened to identify suitable low-GWP (