论文部分内容阅读
简介 “四位一体”沼气系统是新近发展起来的把可再生能源开发和有机农业相结合的生态模式。系统由沼气池、猪圈、厕所和日光温室组成,故名“四位一体”。这种模式的理论基础是环境学、经济学和系统工程原理。“四位一体”模式的推广已经为增加能源供应、提高农民收入和改善生活环境作出了很大贡献。 “四位一体”生态模式的真正发展出现在中国辽宁省的普兰店市。当地气大陆季风性气候。全年平均温度5-10℃最高温度超过30℃,最低气温约零下30℃。每年无霜期为124-215d,年日照时数为2300-3000h,年太阳辐射强度为502-564kJ/m2。
INTRODUCTION “Four in One ” The biogas system is a newly developed ecological model that combines the development of renewable energy with organic farming. The system consists of digesters, pigsty, toilets and sunlight greenhouse composition, hence the name “four in one ”. The rationale for this model is environmental science, economics and systems engineering principles. The promotion of the “four in one” model has greatly contributed to increasing energy supply, raising farmers’ income and improving the living environment. “Four in One ” The real development of the ecological model appears in Pulandian, Liaoning Province, China. Local climate Continental monsoon climate. The annual average temperature of 5-10 ℃ maximum temperature exceeds 30 ℃, the minimum temperature of about minus 30 ℃. Annual frost-free period of 124-215d, the annual sunshine hours of 2300-3000h, the annual solar radiation intensity of 502-564kJ / m2.