06 December 2024

R744 Heat Pumps with Ejectors for Heating and/or Cooling: Opportunities, Challenges, and Results


R744 heat pumps with ejectors are driving decarbonization in sectors needing heating and cooling, such as hotels, hospitals, schools, food processing, district heating/cooling, etc. Traditionally reliant on fossil-fuelled heating and separate cooling systems, these sectors benefit from R744 heat pumps integrated with thermal storage, boosting efficiency and supporting demand response to lower peak energy use. This study explores the opportunities and challenges of deploying R744 heat pumps with ejectors, comparing energy performance to systems without ejectors in a Mexico City hotel, and presenting test data from the Schaufler Academy in Germany.