Modeling the point of use EROI and its implications for economic growth in China
| Autor: | Carey W. King, Jingxuan Feng, Lianyong Feng, Jianliang Wang |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Engineering
Natural resource economics 020209 energy 02 engineering and technology 010501 environmental sciences Discount points 01 natural sciences Industrial and Manufacturing Engineering Gross domestic product 0202 electrical engineering electronic engineering information engineering Production (economics) Coal Electrical and Electronic Engineering 0105 earth and related environmental sciences Civil and Structural Engineering Waste management business.industry Mechanical Engineering Fossil fuel Building and Construction Pollution General Energy Energy intensity business Embodied energy Energy (signal processing) |
| Zdroj: | Energy. 144:232-242 |
| ISSN: | 0360-5442 |
| DOI: | 10.1016/j.energy.2017.11.061 |
| Popis: | Energy return on energy invested (EROI) might be considered a measure of net energy, and most current studies focus on standard EROI (EROIST). If the energy inputs required to obtain a fuel was extended from a wellhead to the point of use, the energy delivered decreases, and the energy input of delivering the fuel increases. These factors combine to reduce the EROIST to what is referred to as the point of use EROI (EROIPOU). This study calculates the direct and indirect energy (embodied energy) inputs for energy production sectors (including extraction, processing and delivery) by means of an Input-Output table to calculate China's EROIPOU and the net energies from 1987 to 2012. Based on calculations in this study, the EROIPOU of China's energy production sector declined from 11.01:1 to 5.26:1 between 1987 and 2012. In 1987, the energy production sectors consumed 1 ton standard coal equivalent (TCE) energy inputs for every 10.01 TCE of produce net energy. However, in 2012, this number declined to 4.25. Additionally, this study simulates and forecast economic Gross Domestic Product (GDP) trends in China using net energy production function. The results reveal how declining EROIPOU for Chinese fossil fuels influence China's GDP growth. |
| Databáze: | OpenAIRE |
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