Príspevok
Upcoming natural refrigerant-driven heating and cooling systems in India
DOI: 10.18462/iir.compr.2024.0657
Sekcia: Compressors and refrigerants
Stav prijatia: Abstrakt prijatý
Autori
| Meno | Organizácia | |
|---|---|---|
| Sarun Kumar Kochunni, PhD | Norwegian University of Science and Technology | |
| Simarpreet Singh, PhD | EcoRef Tech | |
| Vinod Laguri Vinod Laguri, M.Tech | Indian Institute of Science, Bangalore | |
| Arun BS, PhD | ICAR-Central Institute of Fisheries Technology, Kochi | |
| Sumit Kumar, M.Tech | Indian Institute of Technology Kharagpur | |
| Prosenjit Singha, M.Tech | Birla Institute of Technology and Science, Pilani | |
| Chayan Das, PhD | Birla Institute of Technology and Science, Pilani | |
| Lukas Köster, Master’s | SINTEF Ocean AS | |
| Marco Bless, Master’s | SINTEF Energy Research | |
| Armin Hafner, PhD | Norwegian University of Science and Technology |
Abstrakt
India's heating, ventilation, air conditioning, and refrigeration (HVAC&R) industry still mainly employs synthetic refrigerants, exacerbating global warming. Promoting natural refrigerants may facilitate the transition to clean, sustainable heating and cooling options. However, in addition to the technical difficulties brought on by high ambient temperatures, non-technological impediments such as lack of expertise with the technology, general hesitance to new technology, and a shortage of appropriately experienced experts and installers hamper the adoption of the latest technologies. The Future Refrigeration India: INDEE+ project aims to increase confidence in the HVAC&R sector by implementing and demonstrating some natural refrigerant-driven heating and cooling systems. Ejector-supported R744 systems are proposed for a hotel (480 kW cooling load) and a hot water supply unit (140 kW heating load) for a large school kitchen. These systems are designed to meet both the heating and cooling loads simultaneously. The third investigation focuses on operating a 350 kW CO2-NH3 cascade freezer in a fish processing factory. The fourth unit under development is an on-board refrigeration system that produces ice from saltwater using R290 (propane). This paper initially covers the modelling, simulation, and theoretical performance evaluation of the designed systems. Further validation of the models with data from the industrial areas is presented. The outcomes of this demonstration work in real industrial scenarios will serve as guidelines to assist the transition to more environmentally friendly heating and cooling systems in India.
Kľúčové slová
Natural refrigerants
Transcritical CO2 cycle
CO2-NH3 cascade refrigeration