石惠娴,徐得天,朱洪光,张亚雷,孟祥真,郭长城.太阳能-地源热泵式沼气工程加温系统TRNSYS模拟[J].农业机械学报,2017,48(8):288-295.
SHI Huixian,XU Detian,ZHU Hongguang,ZHANG Yalei,MENG Xiangzhen,GUO Changcheng.TRNSYS Simulation of Integrated Solar and Ground Source Heat Pump for Biogas Digester Heating System[J].Transactions of the Chinese Society for Agricultural Machinery,2017,48(8):288-295.
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太阳能-地源热泵式沼气工程加温系统TRNSYS模拟   [下载全文]
TRNSYS Simulation of Integrated Solar and Ground Source Heat Pump for Biogas Digester Heating System   [Download Pdf][in English]
投稿时间:2017-05-31  
DOI:10.6041/j.issn.1000-1298.2017.08.033
中文关键词:  沼气工程  加温系统  太阳能-地源热泵式  能耗  TRNSYS模拟
基金项目:国家高技术研究发展计划(863计划)项目(2013AA103006-02)
作者单位
石惠娴 同济大学 
徐得天 同济大学 
朱洪光 同济大学 
张亚雷 同济大学 
孟祥真 同济大学 
郭长城 同济大学 
中文摘要:利用TRNSYS软件对太阳能-地源热泵式沼气工程加温系统进行仿真模拟,得出该系统某一典型天和全年能量利用效果:在冬季最冷的典型一天,总供热包括热泵耗电量、水泵耗电量、地埋管和集热器总集热量共225.52MJ/d;总耗热包括沼气池维护结构散热和加温料液负荷共208.57MJ/d。除去无供热效果的水泵耗电部分,能量输入和沼气池热负荷基本趋于平衡;系统全年共消耗热量46657.32MJ,可再生能源(太阳能和地热能)提供74%;其中,太阳能热利用贡献63%,地热能贡献37%,表明该加温系统可高效利用可再生能源。系统全年向地下蓄热总量为7630.99MJ,吸热总量为12954.81MJ,蓄热量虽不能完全满足供热量的需求,但可以在一定程度上缓解土壤的冷热失衡。
SHI Huixian  XU Detian  ZHU Hongguang  ZHANG Yalei  MENG Xiangzhen  GUO Changcheng
Tongji University,Tongji University,Tongji University,Tongji University,Tongji University and Tongji University
Key Words:biogas project  heating system  integrated solar and ground source heat pump  energy consumption  TRNSYS simulation
Abstract:The energy structure of energy supply project always adopts traditional and renewable energy together for the past years. However, for the future development, renewable energy will gradually increase the proportion, or even completely replace the traditional energy. The actual energy supply engineering energy utilization effect is worthy of attention. There are two schemes to discuss: engineering test and software simulation. Engineering test will be time-consuming, while software simulation can save a great deal of costs, as well as carry out the design and verification of various control schemes. Therefore, the integrated solar-ground source heat pump for biogas digester heating system simulation was studied. The typical day and year energy utilization effects of the heating system were obtained by using TRNSYS platform with Type109-TMY2 (reader and meteorological data processor), Type71 (vacuum tube solar collector), Type60 (storage tank), Type3b (circulating pump), Type60c (methane), Type668 (heat pump), Type557b (buried pipe), Type14h (operation controller), Type25a (print results) modules. Results showed that in the typically coldest winter day, the total heat supplying capacity was 225.52MJ/d, which included heat pump power consumption (57.24MJ/d), water pump power consumption (13.39MJ/d), buried tube (71.93MJ/d) and solar collector (82.96MJ/d). The total heat dissipation capacity was 208.57MJ/d, which contained biogas pool maintenance structure heat (132MJ/d) and liquid heating load (76.57MJ/d). The annual total heat consumption of the system was 46657.32MJ, the renewable energy included solar contribution (63%) and geothermal contribution (37%), which accounted for 74%. It showed that renewable energy sources were efficiently utilized in the heating system. Furthermore, the system can store 7630.99MJ/a of heat to the ground but the heat absorption capacity was 12954.81MJ/a. Although the heat storage capacity cannot meet the demand of heat supply, it can alleviate the cold and hot imbalance of soil to some extent.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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