Experimental Study on Productivity Performance of Household Combined Thermal Power and Biogas System in Northwest China.

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ID: 42990
2018
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Abstract
Ample quantities of solar and local biomass energy are available in the rural regions of northwest China to satisfy the energy needs of farmers. In this work, low-temperature solar thermal collectors, photovoltaic solar power generators, and solar-powered thermostatic biogas digesters were combined to create a heat, electricity, and biogas cogeneration system and were experimentally studied through two buildings in a farming village in northwestern China. The results indicated that the floor heater had the best heating effect. And the fraction of the energy produced by the solar elements of the system was 60.3%. The photovoltaic power-generation system achieved photovoltaic (PV) conversion efficiencies of 8.3% and 8.1% during the first and second season, respectively. The intrinsic power consumption of the system was 143.4 kW·h, and 115.7 kW·h of electrical power was generated by the system in each season. The average volume of biogas produced daily was approximately 1.0 m. Even though the ambient temperature reached -25°C, the temperature of the biogas digester was maintained at 27°C ± 2 for thermostatic fermentation. After optimization, the energy-saving rate improved from 66.2% to 85.5%. The installation reduced CO emissions by approximately 27.03 t, and the static payback period was 3.1 yr. Therefore, the system is highly economical, energy efficient, and beneficial for the environment.
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kang2018experimentalbiomed Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Kang, Jian;Li, Jinping;Zhen, Xiaofei;Osman, Yassir Idris Abdalla;Feng, Rong;Si, Zetian;
Journal BioMed research international
Year 2018
DOI
10.1155/2018/7420656
URL
Keywords
mechanical properties thermal energy storage phase change material carbon fiber expanded graphite gypsum-based composite material thermal performances

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