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environment, odor etc. are excluded too. Moreover, assets like furniture, cabinets
and other small accessories are not included in the study but electricity consumption
in lighting, PCs, fans and other lab equipment is considered in the operational phase
of the building. The study is set about with collection and quantification of construction materials used in the building. The data and details related to materials using
construction of the building are obtained by using visual inspection and building’s
drawing and plans shown in Figs. 4, 5 and 6. The electrical energy consumed in the
operational phase of the building is found by electricity bills of previous bills. As the
selected building is an academic building and is nonresidential type so the electricity
loads are assumed to be constant with respect to a specific schedule. These obtained
data are used in GaBi software to estimate emissions associated with the building.
4 Case Study
The building selected for the case study is an educational building of THDC Institute
of Hydropower Engineering and Technology, which is located at hilly region of
Tehri, Uttarakhand India. The coordinates of the location are 30.38 latitude and 78.46
longitude. The building is located near to Tehri Hydropower reservoir, which is one
of the largest hydropower projects in the world with generation capacity of 2400
MW. The building was commissioned in 2011 and dedicatedly used for academic
purpose. The building comes under the Department of Applied Sciences and having
labs, classrooms, computer labs, faculty cabins, etc. Figure 7 represents the actual
picture of the building. The building is having two floors and floor area of the building
is about 1112 m
2 . The objective of the present study is to estimate carbon footprints
of the selected building using LCA technique with the help of software. LCA studies
are able to consider various environmental impacts associated with the building from
acquisition of raw materials to its disposal as per ISO 14040 2006. In the present
study, process-based LCA technique is used. The analysis is started with a selection
of building and then the resources associated directly as well as indirectly to produce
it are analyzed, which is then followed by estimation of carbon footprints.
The location of the building is in the hilly terrains of Tehri and variations in
climatic conditions are experienced throughout the year. But as it has been discussed
in previous section that the effect of these climatic conditions is not considered in
the study. The building comprises physics lab, chemistry labs, faculty cabins, administrative offices in ground floor and two classrooms and computer labs in the first
floor. Electrical energy is dedicatedly consumed in lighting, fans, computers, heaters,
sanitation equipment, office equipment like projectors, photocopiers and other lab
equipment. In order to calculate annual electrical consumption of the building, it
is quite obvious to depend on the previous electricity bills. The annual electricity
consumption is calculated using the electrical ratings found in previous electricity
bills and further extended to total electricity consumption throughout its life cycle
i.e. 50 years. From this method, the annual electricity consumption of the selected
building is about 4945.70 kWh e /year.
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