Abstract
Anaerobic treatment technology is a common technology for treating starch wastewater. Relevant research shows that heating the wastewater to the optimum operating temperature can ensure the work efficiency of anaerobic reactor. However, the water from anaerobic reactor has a high temperature and generates lots of waste heat. Therefore, we propose a biogas generator set–sewage source heat pump combined heating system. Compared with the obsolete traditional heating method of single heat source (biogas boiler), this new method can not only save energy consumption, but also heat the anaerobic reactor continuously and steadily. We analyzed the energy-saving and economy of the biogas generator set–sewage source heat pump heating system through theoretical calculation. The results show that compared with the single heat source biogas boiler heating system, the system has remarkable energy-saving effect, the primary energy-saving is about 163.00–358.35 kW, and the annual cost of the combined heat source heating system is about 72% of that of the biogas boiler heating system.
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Acknowledgements
The project is supported by the project “Research on Waste Heat Recovery System of Sweet Potato Starch Wastewater Anaerobic Reactor” (NDYC-KF-2017-08)
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Sheng, S., Wang, F. (2020). Energy-Saving and Economic Analysis of Anaerobic Reactor Heating System Based on Biogas and Sewage Source Heat Pump. In: Wang, Z., Zhu, Y., Wang, F., Wang, P., Shen, C., Liu, J. (eds) Proceedings of the 11th International Symposium on Heating, Ventilation and Air Conditioning (ISHVAC 2019). ISHVAC 2019. Environmental Science and Engineering(). Springer, Singapore. https://doi.org/10.1007/978-981-13-9524-6_67
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DOI: https://doi.org/10.1007/978-981-13-9524-6_67
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