Process Line for Waste Heat Recovery in the Production of Stretch Film Based on Compressor Heat Pumps with Environmentally Friendly Refrigerants
The production technology for stretch film is highly energy-intensive. Electrical energy is used not only to power individual components of the technological line but also to change the physical state of the raw material (granules) from solid to liquid, which is poured onto the first calender roller...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-01-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/18/1/162 |
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| author | Paweł Obstawski Jacek Słoma Krzysztof Górnicki Michał Awtoniuk |
| author_facet | Paweł Obstawski Jacek Słoma Krzysztof Górnicki Michał Awtoniuk |
| author_sort | Paweł Obstawski |
| collection | DOAJ |
| description | The production technology for stretch film is highly energy-intensive. Electrical energy is used not only to power individual components of the technological line but also to change the physical state of the raw material (granules) from solid to liquid, which is poured onto the first calender roller. The calender roller must be cooled to solidify the liquid raw material, and the low-temperature heat generated in this process has been treated so far as waste heat and dispersed into the atmosphere. A low-temperature process heat recovery line has been developed, enabling its transformation into high-temperature heat. High-temperature process heat can be utilized in the technological process for the preliminary preparation of raw material when recycled material (regranulate) with highly variable parameters is added to the base material (granules) with strict specifications. The regranulate content can be as high as 80%. The waste heat recovery system is based on two compressor heat pumps powered by eco-friendly refrigerants. This innovative solution facilitates a circular economy, reduces the carbon footprint, and aligns with the European Green Deal. |
| format | Article |
| id | doaj-art-5db39252405f4f78b3fb4a96a41528a2 |
| institution | DOAJ |
| issn | 1996-1073 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-5db39252405f4f78b3fb4a96a41528a22025-08-20T02:47:10ZengMDPI AGEnergies1996-10732025-01-0118116210.3390/en18010162Process Line for Waste Heat Recovery in the Production of Stretch Film Based on Compressor Heat Pumps with Environmentally Friendly RefrigerantsPaweł Obstawski0Jacek Słoma1Krzysztof Górnicki2Michał Awtoniuk3Institute of Mechanical Engineering, Warsaw University of Life Sciences—SGGW, 164 Nowoursynowska Str., 02-787 Warsaw, PolandInstitute of Mechanical Engineering, Warsaw University of Life Sciences—SGGW, 164 Nowoursynowska Str., 02-787 Warsaw, PolandInstitute of Mechanical Engineering, Warsaw University of Life Sciences—SGGW, 164 Nowoursynowska Str., 02-787 Warsaw, PolandInstitute of Mechanical Engineering, Warsaw University of Life Sciences—SGGW, 164 Nowoursynowska Str., 02-787 Warsaw, PolandThe production technology for stretch film is highly energy-intensive. Electrical energy is used not only to power individual components of the technological line but also to change the physical state of the raw material (granules) from solid to liquid, which is poured onto the first calender roller. The calender roller must be cooled to solidify the liquid raw material, and the low-temperature heat generated in this process has been treated so far as waste heat and dispersed into the atmosphere. A low-temperature process heat recovery line has been developed, enabling its transformation into high-temperature heat. High-temperature process heat can be utilized in the technological process for the preliminary preparation of raw material when recycled material (regranulate) with highly variable parameters is added to the base material (granules) with strict specifications. The regranulate content can be as high as 80%. The waste heat recovery system is based on two compressor heat pumps powered by eco-friendly refrigerants. This innovative solution facilitates a circular economy, reduces the carbon footprint, and aligns with the European Green Deal.https://www.mdpi.com/1996-1073/18/1/162technological linestretch filmrecyclateheat pumpgreenhouse gas reduction |
| spellingShingle | Paweł Obstawski Jacek Słoma Krzysztof Górnicki Michał Awtoniuk Process Line for Waste Heat Recovery in the Production of Stretch Film Based on Compressor Heat Pumps with Environmentally Friendly Refrigerants Energies technological line stretch film recyclate heat pump greenhouse gas reduction |
| title | Process Line for Waste Heat Recovery in the Production of Stretch Film Based on Compressor Heat Pumps with Environmentally Friendly Refrigerants |
| title_full | Process Line for Waste Heat Recovery in the Production of Stretch Film Based on Compressor Heat Pumps with Environmentally Friendly Refrigerants |
| title_fullStr | Process Line for Waste Heat Recovery in the Production of Stretch Film Based on Compressor Heat Pumps with Environmentally Friendly Refrigerants |
| title_full_unstemmed | Process Line for Waste Heat Recovery in the Production of Stretch Film Based on Compressor Heat Pumps with Environmentally Friendly Refrigerants |
| title_short | Process Line for Waste Heat Recovery in the Production of Stretch Film Based on Compressor Heat Pumps with Environmentally Friendly Refrigerants |
| title_sort | process line for waste heat recovery in the production of stretch film based on compressor heat pumps with environmentally friendly refrigerants |
| topic | technological line stretch film recyclate heat pump greenhouse gas reduction |
| url | https://www.mdpi.com/1996-1073/18/1/162 |
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