Life-cycle fossil energy consumption and greenhouse gas emission intensity of dominant secondary energy pathways of China in 2010

Energy ◽  
2013 ◽  
Vol 50 ◽  
pp. 15-23 ◽  
Author(s):  
Xin Li ◽  
Xunmin Ou ◽  
Xu Zhang ◽  
Qian Zhang ◽  
Xiliang Zhang
Keyword(s):  
Life Cycle ◽  
Energy Consumption ◽  
Greenhouse Gas ◽  
Emission Intensity ◽  
Greenhouse Gas Emission ◽  
Gas Emission ◽  
Fossil Energy ◽  
Secondary Energy ◽  
Energy Pathways

External Insulation Design Impacts on the Energy Consumption and Greenhouse Gas Emission of Building

2016 ◽  
Vol 847 ◽  
pp. 381-390 ◽  
Author(s):  
Yao Li ◽  
Xian Zheng Gong ◽  
Zhi Hong Wang ◽  
Hao Li ◽  
Miao Miao Fan
Keyword(s):  
Life Cycle ◽  
Energy Consumption ◽  
Greenhouse Gas ◽  
Greenhouse Gas Emission ◽  
Gas Emission ◽  
Production Phase ◽  
External Insulation ◽  
Insulation Thickness ◽  
Building Life Cycle ◽  
Operation Phase

In order to determine the optimal parameters of the external insulation system and guide the energy saving and greenhouse gas emission reduction of building, a typical student dormitory building in Beijing was chosen as research object. The life cycle thinking and dynamic simulation method were used in the present investigation. The relationship between the expandable polystyrene (EPS) external insulation system design parameters and building energy consumption and greenhouse gas emission in each phase of materials production phase, operation phase and the whole life cycle was studied, systematically . The results show that the consumption of clay brick, concrete and cement mortar account for 98.1% of the total materials consumption, where concrete contributes most to both energy consumption (36.6%) and greenhouse gas emission (35.9%). Regarding the contribution to energy consumption and greenhouse gas emission for building life cycle, materials production phase accounts for 5.6%-18.8% and building operation phase takes up 80.6%-93.4%. With the increase of EPS insulation thickness, the energy consumption and greenhouse gas emission increase linearly in materials production phase, decrease in building operation phase, and have an optimization value in the building life cycle to reach the minimum when the heat transfer coefficient (K) is 0.3W / (m2 • K) equivalent to the EPS insulation thickness is 130mm. Building heating load reduces with the increases of insulation thickness, but the envelope thermal insulation performance has no significant influence on cooling load.

Life cycle greenhouse gas emission of wooden guardrails: a study in Nagano Prefecture

2015 ◽  
Vol 62 (2) ◽  
pp. 181-193 ◽  
Author(s):  
Ryu Noda ◽  
Chihiro Kayo ◽  
Masato Yamanouchi ◽  
Naoaki Shibata
Keyword(s):  
Life Cycle ◽  
Greenhouse Gas ◽  
Greenhouse Gas Emission ◽  
Gas Emission ◽  
Nagano Prefecture
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