Life Cycle Energy Analysis of a Multifamily Residential House: A Case Study in Indian Context
- 1 Department of Mechanical Engineering, Motilal Nehru National Institute of Technology, Allahabad, India
- 2 Department of Mechanical Engineering, Motilal Nehru National Institute of Technology, Allahabad, India
- 3 Department of Applied Mechanics, Motilal Nehru National Institute of Technology, Allahabad, India
Abstract
The paper presents life cycle energy analysis of a multifamily residential house situated in Allahabad (U.P), India. The study covers energy for construction, operation, maintenance and demolition phases of the building. The selected building is a 4-storey concrete structured multifamily residential house comprising 44 apartments with usable floor area of 2960 m 2 . The material used for the building structure is steel reinforced concrete and envelope is made up of burnt clay brick masonry. Embodied energy of the building is calculated based on the embodied energy coefficients of building materials applicable in Indian context. Operating energy of the building is estimated using e-Quest energy simulation software. Results show that operating energy (89%) of the building is the largest contributor to life cycle energy of the building, followed by embodied energy (11%). Steel, cement and bricks are most significant materials in terms of contribution to the initial embodied energy profile. The life cycle energy intensity of the building is found to be 75 GJ/m 2 and energy index 288 kWh/m 2 years (primary). Use of aerated concrete blocks in the construction of walls and for covering roof has been examined as energy saving strategy and it is found that total life cycle energy demand of the building reduces by 9.7%. In addition, building integrated photo voltaic (PV) panels are found most promising for reduction (37%) in life cycle energy (primary) use of the building.
- M. Asif, T. Muneer and R. Kelley, “Life Cycle Assessment: A Case Study of a Dwelling Home in Scotland,” Building and Environment, Vol. 42, No. 3, 2007, pp. 1391-1394. doi:10.1016/j.buildenv.2005.11.023
- N. K. Bansal, “Energy Security, Climate Change and Sustainable Development,” In Jyotirmay Mathur, H.J Wagner and N.K Bansal Ed., Science, Technology and Society: Energy Security for India. Anamaya Publishers, Inc., New Delhi, 2007, pp.15-23.
- K. Adalberth, “Energy Use during the Life Cycle of Single-Unit Dwellings: Examples,” Building and Environment, Vol. 32, No. 4, 1997, pp. 321-329. doi:10.1016/S0360-1323(96)00069-8
- K. Adalberth, “Energy Use in Four Multi-Family Houses During their Life Cycle,” International Journal of Low Energy and Sustainable Buildings, Vol. 1, 1999, pp. 1-20.
- B. N. Winther and A. G. Hestnes, “Solar Versus Green: The Analysis of a Norwegian Row House,” Solar Energy, Vol. 66, No. 6, 1999, pp. 387-393. doi:10.1016/S0038-092X(99)00037-7
- S. Citherlet and T. Defaux, “Energy and Environmental Comparison of Three Variants of a Family House during Its Whole Life Span,” Building and Environment, Vol. 42, No. 2, 2007, pp. 591-598. doi:10.1016/j.buildenv.2005.09.025
- N. Mithraratne and B. Vale, “Life Cycle Analysis Model for New Zealand Houses,” Building and Environment, Vol. 39, No. 4, 2004, pp. 483-492. doi:10.1016/j.buildenv.2003.09.008
- G. Treloar, R. Fay, P. E. D. Love and U. Iyer-Raniga, “Analysing the Life—Cycle Energy of an Australian Residential Building and its Householders,” Building Re- search & Information, Vol. 28, No. 3, 2000, pp. 184-195. doi:10.1080/096132100368957
- R. Fay, G. Treloar and U. Iyer-Raniga, “Life-Cycle Energy Analysis of Buildings: a Case Study,” Building Research & Information, Vol. 28, No. 1, 2000, pp. 31-41. doi:10.1080/096132100369073
- A. Utama, and S. H. Gheewala, “Life Cycle Energy of Single Landed Houses in Indonesia,” Energy and Buildings, Vol. 40, No. 10, 2008, pp. 1911-1916. doi:10.1016/j.enbuild.2008.04.017
- A. Shukla, G. N. Tiwari and M. S. Sodha, “Embodied Energy Analysis of Adobe House,” Renewable Energy, Vol. 34, No. 3, 2009, pp. 755-761. doi:10.1016/j.renene.2008.04.002
- B. V. V. Reddy and K. S. Jagadish, “Embodied Energy of Common and Alternative Building Materials and Technologies,” Energy and Buildings, Vol. 35, No. 2, 2003, pp. 129-137. doi:10.1016/S0378-7788(01)00141-4