This review highlights optimized CO2 transcritical cycles improving energy efficiency in building heating and cooling applications, suggesting solutions for practical challenges.
Key Points
Energy efficiency in CO2 transcritical cycles increased by up to 46.96% in heating applications, showcasing significant optimization potential.
The review details strategies like distributed compression and design enhancements for compressors and gas coolers to improve cooling capacity by 26.5%.
Operating conditions such as discharge pressure and subcooling are crucial for system performance, impacting both heating and cooling efficiency.
Identifying challenges like high initial costs points to the need for focused research on improving CO2 systems for practical application.