TY - JOUR
T1 - An inventory analysis of sewage energy system
AU - Yosuke, Kimuro
AU - Takaaki, Furubayashi
AU - Toshihiko, Nakata
PY - 2011/4/6
Y1 - 2011/4/6
N2 - In this study, 13 types of sewage energy system are evaluated by using inventory analysis. Evaluation indexes are energy balance, greenhouse gas emission, and economic efficiency. The main ecmipment of those energy systems are three types of incineration, three types of solid fuel, two types of pyrolysis gasification, and five types of digestion. The range of evaluation is from sewage sludge to power generation. Inputs of those energy systems are electricity, city gas, light oil, and wood biomass, and outputs are production of electricity, CO2 gas, and N2O gas. The results from the viewpoint of energy balance show that only the systems with gasification furnace produce larger electricity generation than total consumption. The results about the greenhouse gas emission show that the lowest gas emission system is the system with solid fuel produced by drying. N2O gas emitted by solid fuel is lower than the others. The results about the economic efficiency show that the lowest cost system is the systems with solid fuel because the construction cost that holds most of total cost is much lower than the other systems.
AB - In this study, 13 types of sewage energy system are evaluated by using inventory analysis. Evaluation indexes are energy balance, greenhouse gas emission, and economic efficiency. The main ecmipment of those energy systems are three types of incineration, three types of solid fuel, two types of pyrolysis gasification, and five types of digestion. The range of evaluation is from sewage sludge to power generation. Inputs of those energy systems are electricity, city gas, light oil, and wood biomass, and outputs are production of electricity, CO2 gas, and N2O gas. The results from the viewpoint of energy balance show that only the systems with gasification furnace produce larger electricity generation than total consumption. The results about the greenhouse gas emission show that the lowest gas emission system is the system with solid fuel produced by drying. N2O gas emitted by solid fuel is lower than the others. The results about the economic efficiency show that the lowest cost system is the systems with solid fuel because the construction cost that holds most of total cost is much lower than the other systems.
KW - Energy system
KW - Inventory analysis
KW - Multimodal assessment
KW - Sewage
KW - Waste power generation
UR - http://www.scopus.com/inward/record.url?scp=79953267629&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79953267629&partnerID=8YFLogxK
U2 - 10.3775/jie.90.247
DO - 10.3775/jie.90.247
M3 - Article
VL - 90
SP - 247
EP - 257
JO - Nenryo Kyokai-Shi/Journal of the Fuel Society of Japan
JF - Nenryo Kyokai-Shi/Journal of the Fuel Society of Japan
SN - 0916-8753
IS - 3
ER -