Abstract
To quantify the energy consumption in the process of production, transportation and processing of energy carriers, the life cycle of building energy used can be divided into two phases: on-site phase and embodied phase. As for the embodied phase, with the data in existing statistic yearbook, the consumption items of energy production and transportation were investigated. And based on the life cycle theory, an embodied coefficient of energy carriers was proposed to quantify the embodied energy consumption. Moreover, a calculation method for the embodied coefficient of energy carriers was deduced using Leontief inverse matrix based on the existing data sources. With relevant data of 2005–2007 in China, the embodied coefficients in 2005–2007 were obtained, in which the values for natural gas and thermal power are around 1.3 and 3.1, respectively; while they are 1.03–1.08 for other selected energy carriers. In addition, it is also found that the consumption in the production and processing accounts for more than 75%.
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