Loi Dinh Chinh. Life Cycle Assessment of Uong Bi Extension Coal-fired Power Plant. Master's Degree(Environmental Technology). King Mongkut's University of Technology Thonburi. Library. : King Mongkut's University of Technology Thonburi, 2004.
Life Cycle Assessment of Uong Bi Extension Coal-fired Power Plant
Abstract:
More coal-fired power plants are being built based on the coal potential and electricity
demand in Vietnam at present and in the near future, which mainly use coal pulverized
boiler systems. Life cycle assessment is applied for Dong Bi extension coal-fired power
plant to assess the environmental aspects. The considered processes include coal
production (in Vang Danh coal mine), lime production, fuel oil production and power
production. These production processes are inventoried and assessed through their inputs
and outputs. Besides that, the operation, construction and demolition of the power plant are
considered for environmental impact potentials. In the whole life cycle of Dong Bi
extension coal-fired power plant, the results are dust pollution (dust as PMlO, 40.04 kg
IMWh), abiotic resource depletion (2.26 kg Sb eqv/MWh), global warming potential
(1,092 kg CO2 eqv.lMWh), photochemical ozone formation (32 g formed ozone/MWh),
acidification (9.49 kg S02 eqv.lMWh), eutrophication (0.57 kg pol- eqvIMWh), human
toxicity (19,904 kg 1,4-DCB eqv/MWh) and ecotoxicity (20,865 kg l,4-DCB eqv/MWh).
The contributions of these stressors are mainly from the stage of power plant operation.
The second major contributor is the coal production process. The contributions of lime and
fuel oil production are small, and the contributions of stages of transportation, power
plant's construction and demolition are low corresponding to their respective amounts used
for Dong Bi extension power plant.
",.
The environmental "hot-spots" are air emissions from the stack of Dong Bi extension coalfired
power plant, and dust and wastewater from coal extraction activities. The suggestion
for reduction of environmental impacts is improvement of efficiency of the thermal power
plant for new power plants and increased flue gas treatment. The increase of coal
extraction efficiency and reuse and/or recycle of materials for coal production should also
be considered. Besides that some solutions for dust reduction, mine wastewater and noise
abatement have also been proposed.
King Mongkut's University of Technology Thonburi. Library