Dynamic Heating System of Multiphase Flow Digester by Solar-Untreated Sewage Source Heat Pump
The traditional biogas heating system has the disadvantages of a low energy efficiency ratio and high energy consumption. In this study, a solar-untreated sewage source heat pump system (SUSSHPS) was developed for heating a 12 m3 multiphase flow digester (MFD) in Suining, China. To investigate the o...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2020/8821687 |
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| author | Pei Guo Jiri Zhou Rongjiang Ma Nanyang Yu Yanping Yuan |
| author_facet | Pei Guo Jiri Zhou Rongjiang Ma Nanyang Yu Yanping Yuan |
| author_sort | Pei Guo |
| collection | DOAJ |
| description | The traditional biogas heating system has the disadvantages of a low energy efficiency ratio and high energy consumption. In this study, a solar-untreated sewage source heat pump system (SUSSHPS) was developed for heating a 12 m3 multiphase flow digester (MFD) in Suining, China. To investigate the operating effects, two modes were defined according to the solar fractions in different regions. On the basis of experimental data, thermodynamic calculations and operating simulation analysis were performed, and the solar collector area (Ac) and the minimum length of the sewage double-pipe heat exchanger (lmin) for the two modes were calculated. The results indicated that the Ac and lmin of mode 2 were larger than those of mode 1 at different solar fractions. Additionally, the results suggested that mode 1 can be used at a solar fraction of <0.33, and mode 2 can be used at a solar fraction of >0.5. Moreover, a comprehensive evaluation of different biogas heating systems was performed. Two evaluation methods were used for modeling calculations, and the results of the two methods were consistent. The SUSSHPS had the largest comprehensive evaluation value among the four systems. The proposed SUSSHPS can play a significant role in improving current biogas heating systems and promoting the development of biogas projects. |
| format | Article |
| id | doaj-art-faf1e93d62a34e079038dd263933fbb1 |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-faf1e93d62a34e079038dd263933fbb12025-02-03T06:06:54ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2020-01-01202010.1155/2020/88216878821687Dynamic Heating System of Multiphase Flow Digester by Solar-Untreated Sewage Source Heat PumpPei Guo0Jiri Zhou1Rongjiang Ma2Nanyang Yu3Yanping Yuan4School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaSchool of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaDepartment of Building Science, Tsinghua University, Beijing 100084, ChinaSchool of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaSchool of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaThe traditional biogas heating system has the disadvantages of a low energy efficiency ratio and high energy consumption. In this study, a solar-untreated sewage source heat pump system (SUSSHPS) was developed for heating a 12 m3 multiphase flow digester (MFD) in Suining, China. To investigate the operating effects, two modes were defined according to the solar fractions in different regions. On the basis of experimental data, thermodynamic calculations and operating simulation analysis were performed, and the solar collector area (Ac) and the minimum length of the sewage double-pipe heat exchanger (lmin) for the two modes were calculated. The results indicated that the Ac and lmin of mode 2 were larger than those of mode 1 at different solar fractions. Additionally, the results suggested that mode 1 can be used at a solar fraction of <0.33, and mode 2 can be used at a solar fraction of >0.5. Moreover, a comprehensive evaluation of different biogas heating systems was performed. Two evaluation methods were used for modeling calculations, and the results of the two methods were consistent. The SUSSHPS had the largest comprehensive evaluation value among the four systems. The proposed SUSSHPS can play a significant role in improving current biogas heating systems and promoting the development of biogas projects.http://dx.doi.org/10.1155/2020/8821687 |
| spellingShingle | Pei Guo Jiri Zhou Rongjiang Ma Nanyang Yu Yanping Yuan Dynamic Heating System of Multiphase Flow Digester by Solar-Untreated Sewage Source Heat Pump International Journal of Photoenergy |
| title | Dynamic Heating System of Multiphase Flow Digester by Solar-Untreated Sewage Source Heat Pump |
| title_full | Dynamic Heating System of Multiphase Flow Digester by Solar-Untreated Sewage Source Heat Pump |
| title_fullStr | Dynamic Heating System of Multiphase Flow Digester by Solar-Untreated Sewage Source Heat Pump |
| title_full_unstemmed | Dynamic Heating System of Multiphase Flow Digester by Solar-Untreated Sewage Source Heat Pump |
| title_short | Dynamic Heating System of Multiphase Flow Digester by Solar-Untreated Sewage Source Heat Pump |
| title_sort | dynamic heating system of multiphase flow digester by solar untreated sewage source heat pump |
| url | http://dx.doi.org/10.1155/2020/8821687 |
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