Research on Energy-Saving Experimental of Critical Dehumidification of Combined Drying by Dehumidification Wheel and Heat Pump
In order to further decrease the energy consumption of desiccant wheel dehumidification, the drying medium circulation characteristics of a system combining heat pump drying with desiccant wheel dehumidification were investigated. Moreover, the critical dehumidification conversion mechanism was stud...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
|
| Series: | Journal of Food Quality |
| Online Access: | http://dx.doi.org/10.1155/2021/6635517 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849306968744787968 |
|---|---|
| author | Jiaoling Wang Weidong Song Chengqian Jin Tianhang Ding Mingyou Wang Jinji Wu |
| author_facet | Jiaoling Wang Weidong Song Chengqian Jin Tianhang Ding Mingyou Wang Jinji Wu |
| author_sort | Jiaoling Wang |
| collection | DOAJ |
| description | In order to further decrease the energy consumption of desiccant wheel dehumidification, the drying medium circulation characteristics of a system combining heat pump drying with desiccant wheel dehumidification were investigated. Moreover, the critical dehumidification conversion mechanism was studied. The analysis of the heat pump hot air circulation system demonstrated that the heat pump system has the best dehumidification efficiency. Through the analysis of the system combining heat pump drying with desiccant wheel dehumidification, the critical conversion point was determined. The critical dehumidification mechanism was further verified using an online temperature and humidity measurement system. To investigate the effect of the critical point on energy consumption and drying quality and develop a drying model, response surface experiments were performed based on the effects of regeneration temperature, drying temperature, and conversion point relative humidity on rehydration, color difference, and specific moisture extraction rate (SMER). The optimal conversion point humidity was determined to be about 46% RH, which was slightly different from the test optimization value of 45.6% RH. In addition, comprehensive optimization and experimental verification of the influencing factors were conducted. The results demonstrated that the R2 values of the three models were greater than 0.98, and the experimental factors had a significant effect on drying quality and energy consumption. When the regeneration temperature was 96°C, the drying temperature was 53°C, the relative humidity of the conversion point was 46%, the color difference was 46.3, the rehydration ratio was 5.75, and the SMER was 1.62 kg/kW·h. |
| format | Article |
| id | doaj-art-1b99a67f00764db7836da5fec26fb689 |
| institution | Kabale University |
| issn | 1745-4557 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Food Quality |
| spelling | doaj-art-1b99a67f00764db7836da5fec26fb6892025-08-20T03:54:56ZengWileyJournal of Food Quality1745-45572021-01-01202110.1155/2021/66355176635517Research on Energy-Saving Experimental of Critical Dehumidification of Combined Drying by Dehumidification Wheel and Heat PumpJiaoling Wang0Weidong Song1Chengqian Jin2Tianhang Ding3Mingyou Wang4Jinji Wu5Nanjing Institute of Agricultural MechanizationNanjing Institute of Agricultural MechanizationNanjing Institute of Agricultural MechanizationNanjing Institute of Agricultural MechanizationNanjing Institute of Agricultural MechanizationNanjing Institute of Agricultural MechanizationIn order to further decrease the energy consumption of desiccant wheel dehumidification, the drying medium circulation characteristics of a system combining heat pump drying with desiccant wheel dehumidification were investigated. Moreover, the critical dehumidification conversion mechanism was studied. The analysis of the heat pump hot air circulation system demonstrated that the heat pump system has the best dehumidification efficiency. Through the analysis of the system combining heat pump drying with desiccant wheel dehumidification, the critical conversion point was determined. The critical dehumidification mechanism was further verified using an online temperature and humidity measurement system. To investigate the effect of the critical point on energy consumption and drying quality and develop a drying model, response surface experiments were performed based on the effects of regeneration temperature, drying temperature, and conversion point relative humidity on rehydration, color difference, and specific moisture extraction rate (SMER). The optimal conversion point humidity was determined to be about 46% RH, which was slightly different from the test optimization value of 45.6% RH. In addition, comprehensive optimization and experimental verification of the influencing factors were conducted. The results demonstrated that the R2 values of the three models were greater than 0.98, and the experimental factors had a significant effect on drying quality and energy consumption. When the regeneration temperature was 96°C, the drying temperature was 53°C, the relative humidity of the conversion point was 46%, the color difference was 46.3, the rehydration ratio was 5.75, and the SMER was 1.62 kg/kW·h.http://dx.doi.org/10.1155/2021/6635517 |
| spellingShingle | Jiaoling Wang Weidong Song Chengqian Jin Tianhang Ding Mingyou Wang Jinji Wu Research on Energy-Saving Experimental of Critical Dehumidification of Combined Drying by Dehumidification Wheel and Heat Pump Journal of Food Quality |
| title | Research on Energy-Saving Experimental of Critical Dehumidification of Combined Drying by Dehumidification Wheel and Heat Pump |
| title_full | Research on Energy-Saving Experimental of Critical Dehumidification of Combined Drying by Dehumidification Wheel and Heat Pump |
| title_fullStr | Research on Energy-Saving Experimental of Critical Dehumidification of Combined Drying by Dehumidification Wheel and Heat Pump |
| title_full_unstemmed | Research on Energy-Saving Experimental of Critical Dehumidification of Combined Drying by Dehumidification Wheel and Heat Pump |
| title_short | Research on Energy-Saving Experimental of Critical Dehumidification of Combined Drying by Dehumidification Wheel and Heat Pump |
| title_sort | research on energy saving experimental of critical dehumidification of combined drying by dehumidification wheel and heat pump |
| url | http://dx.doi.org/10.1155/2021/6635517 |
| work_keys_str_mv | AT jiaolingwang researchonenergysavingexperimentalofcriticaldehumidificationofcombineddryingbydehumidificationwheelandheatpump AT weidongsong researchonenergysavingexperimentalofcriticaldehumidificationofcombineddryingbydehumidificationwheelandheatpump AT chengqianjin researchonenergysavingexperimentalofcriticaldehumidificationofcombineddryingbydehumidificationwheelandheatpump AT tianhangding researchonenergysavingexperimentalofcriticaldehumidificationofcombineddryingbydehumidificationwheelandheatpump AT mingyouwang researchonenergysavingexperimentalofcriticaldehumidificationofcombineddryingbydehumidificationwheelandheatpump AT jinjiwu researchonenergysavingexperimentalofcriticaldehumidificationofcombineddryingbydehumidificationwheelandheatpump |