Energy and Environmental Performance Comparison of Heat Pump Systems Working with Alternative Refrigerants
The European Parliament has imposed to reduce by 2030 whole HFC emissions by at least two-thirds with respect to 2014 levels. With the aim of contributing to determine the energy and environmental advantages of refrigerants alternative to R-410A, this paper reports the results of a numerical study f...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-06-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/12/7238 |
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| author | Matteo Dongellini Christian Natale Claudia Naldi Eugenia Rossi di Schio Paolo Valdiserri Gian Luca Morini |
| author_facet | Matteo Dongellini Christian Natale Claudia Naldi Eugenia Rossi di Schio Paolo Valdiserri Gian Luca Morini |
| author_sort | Matteo Dongellini |
| collection | DOAJ |
| description | The European Parliament has imposed to reduce by 2030 whole HFC emissions by at least two-thirds with respect to 2014 levels. With the aim of contributing to determine the energy and environmental advantages of refrigerants alternative to R-410A, this paper reports the results of a numerical study focused on an HVAC system coupled to a residential building and based on a reversible electric heat pump. In particular, two heat pump typologies are considered: an air-source and a ground-source heat pump, both operating with the two refrigerants R-410A and R-454B. The environmental performance of the studied system is assessed by means of the TEWI (total equivalent warming impact) index. The adoption of R-454B involves a slight decrease (2–3%) in the overall annual energy performance of the system with respect to the use of R-410A. On the other hand, the working fluid R-454B guarantees a marked decrease in the TEWI indicator. Indeed, considering the current Italian emission factor of electricity taken from the grid, the total emissions over the entire heat pump operating life drop by about 25% and can decrease by up to 89% in perspective, following the current reduction trend of the emission factor. |
| first_indexed | 2024-03-11T02:47:52Z |
| format | Article |
| id | doaj.art-981e5a6cc5664e9e83cf8210043e8c25 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T02:47:52Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-981e5a6cc5664e9e83cf8210043e8c252023-11-18T09:11:05ZengMDPI AGApplied Sciences2076-34172023-06-011312723810.3390/app13127238Energy and Environmental Performance Comparison of Heat Pump Systems Working with Alternative RefrigerantsMatteo Dongellini0Christian Natale1Claudia Naldi2Eugenia Rossi di Schio3Paolo Valdiserri4Gian Luca Morini5Department of Industrial Engineering, Alma Mater Studiorum—University of Bologna, Viale del Risorgimento 2, 40136 Bologna, ItalyDepartment of Industrial Engineering, Alma Mater Studiorum—University of Bologna, Viale del Risorgimento 2, 40136 Bologna, ItalyDepartment of Industrial Engineering, Alma Mater Studiorum—University of Bologna, Viale del Risorgimento 2, 40136 Bologna, ItalyDepartment of Industrial Engineering, Alma Mater Studiorum—University of Bologna, Viale del Risorgimento 2, 40136 Bologna, ItalyDepartment of Industrial Engineering, Alma Mater Studiorum—University of Bologna, Viale del Risorgimento 2, 40136 Bologna, ItalyDepartment of Industrial Engineering, Alma Mater Studiorum—University of Bologna, Viale del Risorgimento 2, 40136 Bologna, ItalyThe European Parliament has imposed to reduce by 2030 whole HFC emissions by at least two-thirds with respect to 2014 levels. With the aim of contributing to determine the energy and environmental advantages of refrigerants alternative to R-410A, this paper reports the results of a numerical study focused on an HVAC system coupled to a residential building and based on a reversible electric heat pump. In particular, two heat pump typologies are considered: an air-source and a ground-source heat pump, both operating with the two refrigerants R-410A and R-454B. The environmental performance of the studied system is assessed by means of the TEWI (total equivalent warming impact) index. The adoption of R-454B involves a slight decrease (2–3%) in the overall annual energy performance of the system with respect to the use of R-410A. On the other hand, the working fluid R-454B guarantees a marked decrease in the TEWI indicator. Indeed, considering the current Italian emission factor of electricity taken from the grid, the total emissions over the entire heat pump operating life drop by about 25% and can decrease by up to 89% in perspective, following the current reduction trend of the emission factor.https://www.mdpi.com/2076-3417/13/12/7238low-GWP refrigerantsTEWIseasonal energy performanceR-454Bdynamic simulations |
| spellingShingle | Matteo Dongellini Christian Natale Claudia Naldi Eugenia Rossi di Schio Paolo Valdiserri Gian Luca Morini Energy and Environmental Performance Comparison of Heat Pump Systems Working with Alternative Refrigerants Applied Sciences low-GWP refrigerants TEWI seasonal energy performance R-454B dynamic simulations |
| title | Energy and Environmental Performance Comparison of Heat Pump Systems Working with Alternative Refrigerants |
| title_full | Energy and Environmental Performance Comparison of Heat Pump Systems Working with Alternative Refrigerants |
| title_fullStr | Energy and Environmental Performance Comparison of Heat Pump Systems Working with Alternative Refrigerants |
| title_full_unstemmed | Energy and Environmental Performance Comparison of Heat Pump Systems Working with Alternative Refrigerants |
| title_short | Energy and Environmental Performance Comparison of Heat Pump Systems Working with Alternative Refrigerants |
| title_sort | energy and environmental performance comparison of heat pump systems working with alternative refrigerants |
| topic | low-GWP refrigerants TEWI seasonal energy performance R-454B dynamic simulations |
| url | https://www.mdpi.com/2076-3417/13/12/7238 |
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