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| Hauptseite > Publikationsdatenbank > Upgrading Waste Heat from 90 to 110 °C: The Potential of Adsorption Heat Transformation > print |
| Hauptseite > Publikationsdatenbank > Upgrading Waste Heat from 90 to 110 °C: The Potential of Adsorption Heat Transformation > print |
| 001 | 889922 | ||
| 005 | 20240712112855.0 | ||
| 024 | 7 | _ | |a 10.1002/ente.202000643 |2 doi |
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| 100 | 1 | _ | |a Engelpracht, Mirko |0 P:(DE-HGF)0 |b 0 |
| 245 | _ | _ | |a Upgrading Waste Heat from 90 to 110 °C: The Potential of Adsorption Heat Transformation |
| 260 | _ | _ | |a Weinheim [u.a.] |c 2021 |b Wiley-VCH |
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| 520 | _ | _ | |a Low‐grade heat is abundantly available below 100 °C, whereas industry mainly needs heat above 100 °C. Thus, the industry cannot directly utilize low‐grade heat to save primary energy and emissions. Low‐grade heat can be utilized by adsorption heat transformers (AdHTs); however, closed AdHTs to upgrade heat above 100 °C are only investigated by idealized steady‐state analyses, which indicate the maximal theoretical performance. For evaluating the performance achievable in practice, this work studies a closed AdHT in a one‐bed configuration using dynamic simulation. For the working pair AQSOA‐Z02/H2O, the performance is optimized via the design of the adsorber heat exchanger and the control of the AdHT cycle. When heat is upgraded from 90 to 110 °C, releasing waste heat at 35 °C, the maximum exergetic coefficient of performance (COPexergetic) is 0.64, and the maximum specific heating power (SHP) is 590 W kg−1. The maximum SHP can increase by 35% when releasing waste heat at 25 °C. Both performance indicators strongly depend on design, control, and the available temperature of the waste heat. Overall, AdHTs with optimized design and control are promising to utilize low‐grade waste heat. |
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| 773 | _ | _ | |a 10.1002/ente.202000643 |g Vol. 9, no. 1, p. 2000643 - |0 PERI:(DE-600)2700412-0 |n 1 |p 2000643 - |t Energy technology |v 9 |y 2021 |x 2194-4296 |
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