An Input and Output Analysis of the Quaternity-Dominating Energy Engineering Model from China's Countryside

2017 International Conference on Environmental, Industrial and Energy Engineering

生态环境科学;工业技术;能源学

Xie, Xing Long^1 ; Xue, Wei Xian^2

Economics and Management Institute, Xi'An University of Technology, Xi'an, China^1

Scientific Research Office, Xi'An University of Technology, Xi'an, China^2

关键词: Cost-profit analysis;    Ecological environments;    Energy engineering;    Engineering project;    Household activities;    Input and outputs;    Investment returns;    Physical quality;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/104/1/012013/pdf
DOI  :  10.1088/1755-1315/104/1/012013

来源: IOP

【 摘 要 】

The aim of this study is to qualitatively and quantitatively explore an energy engineering model termed quaternity-dominating pattern emerging in North China's countryside. This study finds methane produced in this model serves household activities such as cooking, inducing reduction of coal or biomass spending, which otherwise would provoke air pollution, water loss and land erosion, and ultimately leading to ecological environment betterment. Additionally, this project generates byproducts, biogas liquids and residuals, which can, as a category of fertilizer, can promote straightening of fertility preservation capacity and improvement in the chemical and physical quality of land as well as increasing crop output and quality. This study also finds this engineering could encourage social stability via efficiently allocating bucolic surplus labor during winter and successful running this engineering project would trigger an increase of scientific and technological qualifications for rural citizens. Moreover, cost-profit analysis indicates this pattern can allow one rural home to obtain access to a hygienic energy resource of biogas in the yearly volume of 375m3, generate annual net earnings of US$3458.82 and make investment return in about 2.73 years. Especially for poverty-stricken areas, this energy engineering project enjoys high values and great significance, which can lift these impoverished areas from poverty both in economics and energy. The paper concludes with pointing out practical proposals on launching and operating this energy engineering project.