User:Sadhan

 Sadhan Mahapatra  

Sadhan Mahapatra obtained M.Sc in Physics (1994) from Visva-Bharati, Shantiniketan and M.Tech in Energy Science and Technology (1997) from Jadavpur University, Calcutta. Presently he is doing Ph.D. at Indian Institute of Science, Bangalore, in the area of Biomass Gasification. He is working as Assistant Professor in the Department of Energy, Tezpur University. He has more than 15 years of teaching and research experience in the field of Renewable energy and Energy conservation. He is teaching Solar Energy, Wind Energy and Energy Management & Conservation. His areas of interests are Biomass gasification, Climate responsive buildings, Energy conservation, Decentralized energy options, and Techno-economic issues of renewable energy systems.

 Research Areas 

Biomass Gasification (Ongoing PhD work)

Combustion and gasification in packed bed reactor of any solid fuel indicates that sufficient work has done in the area of furnaces, but only modest work in gasification route. Investigation into the combustion flame front propagation in packed bed gasifier has limited to charcoal, coke and very few investigations to biomass wood. Very few attempts have been made to study the same using different biomass fuel at different physical conditions. My research study tries to look into the flame front propagation of different biomass fuel at different physical conditions. This study includes experimental and mathematical modeling on packed bed wood gasification.

Climate responsive buildings

Climate responsive building design is a concept that integrates the micro-climate and architecture with human thermal comfort conditions. This concept takes into account the solar passive techniques, micro-climatic conditions and thermal comfort conditions that improve the building artificial energy efficiency. Thermal comfort not only makes the occupants comfortable but also decides the energy consumption in the building. However, vernacular architecture of North-Eastern India which perfectly represents the principle of climate-oriented architecture still lacks experimental validation and quantitative analysis. Our study starts with climatic classification of entire northeast region into three bioclimatic zones (warm and humid, cool and humid and cold and cloudy). This study also extends to thermal performance analysis of the vernacular buildings of the region. Since, it is not possible to monitor all the buildings due to limited accessibility; so predictive formula has been developed to predict the indoor temperature of this buildings. This study also focused to develop an adaptive thermal comfort model. It is also trying to carry out energy performance simulation work for the buildings of different bioclimatic zones by using TRNSYS. Decentralized energy options

Rural electrification is a great challenge in contemporary India. Low load factors, long distribution lines, low load densities and associated high transmission and distribution losses make many of the rural electrification programme economically unattractive. During grid availability, the supply is found to be erratic and shortages. This calls for the need of decentralized power systems, which can cater to local communities in a much effective manner. Apart from providing better quality life in rural communities, it could have significant effect in the improvement of rural economy. Harnessing energy from solar photovoltaic and biomass through gasification route could be the most promising. The electricity generation through biomass gasification process has been successfully demonstrated both at village community level and large scale independent power producer. Therefore the need for decentralized power system is also relevant to North-Eastern States of India, particularly for isolated sites that are located far off the grid supply. In the light of the above, promoting biomass gasifiers as decentralized power units for North-Eastern States appears to be one of the cost effective solution. The agro-residue and bamboo based biomass gasification technology systems can be replicable and sustainable model for generation of electricity from locally available resources at the village level. This would involve accelerating the overall development of the whole area with a number of programs like providing electricity, entrepreneur development and generation of employment opportunities.

 Publications 

International Journal


 * Sadhan Mahapatra. S. Dasappa. Rural electrification : Optimizing the choice between decentralized renewable energy sources and grid extension. Energy for Sustainable Development. 2012: 16(2), 146-154


 * Manoj Kumar Singh. Sadhan Mahapatra. S. K. Atreya. Solar passive features in vernacular architecture of North-East India. Solar Energy. 2011: 85(9): 2011-2022


 * Manoj Kumar Singh. Sadhan Mahapatra. S. K. Atreya. Adaptive thermal comfort model for different climatic zones of North-East India. Applied Energy. 2011: 88(7), 2420-2428.


 * Manoj Kumar Singh. Sadhan Mahapatra. S. K. Atreya. B Givoni. Thermal monitoring and indoor temperature modeling in vernacular buildings of North-East India. Energy & Buildings.2010:42(10), 1610-1618.


 * Manoj Kumar Singh. Sadhan Mahapatra. S. K. Atreya. Thermal performance study and evaluation of comfort temperatures in vernacular buildings of North-East India. Building & Environment.2010:45(2), 320-329.


 * Sadhan Mahapatra, H. N Chanakya, S. Dasappa. Evaluation of various energy devices for domestic lighting in India: Technology, economics and CO2 emissions. Energy for Sustainable Development 2009: 13(4), 271-279.


 * Manoj Kumar Singh. Sadhan Mahapatra. S. K. Atreya. Bioclimatism and Vernacular Architecture of North-East India. Building & Environment.2009: 44(5), 878-888.


 * Manoj Kumar Singh. Sadhan Mahapatra. S. K. Atreya. Development of Bio-climatic zones in North-East India. Energy & Buildings. 2007:39(12), 1250-1257.


 * Sadhan Mahapatra. S Neogi. Iterative Model for the Performance Evaluation of a Horizontal Axis Wind Turbine. Wind Engineering. 2002: 26(2), 109-116.

Conference Proceedings


 * Singh Manoj Kumar. Mahapatra Sadhan. Atreya S. K. Thermal acceptability assessment in vernacular buildings of North-East India. ISES Solar World Congress 2011, Kassel, Germany, 28th August – 2nd September 2011


 * Mahapatra Sadhan. Dasappa S. Off-Grid Biomass Gasification Based Rural Electrification in Lieu of Grid Extension. 19th European Biomass Conference and Exhibition, ICC Berlin, Germany, 6-10th June 2011.


 * Singh Manoj Kumar. Mahapatra Sadhan. Atreya S. K. Study to enhance comfort status in naturally ventilated vernacular buildings of northeast India. Proc. ISES Solar World Congress 2009: Renewable Energy Shaping Our Future, Johannesburg, South Africa,11-14 October 2009, pp 1442-1450. ISBN:978-1-920017-42-2(CD-ROM)


 * Iftiquar S. M. Mahapatra S. Fabricating large area Quantum dot Solar cell. 18th International Photovoltaic Science and Engineering Conference (PVSEC-18), Kolkata, 19-23rd January, 2009.


 * Singh Manoj Kumar. Mahapatra Sadhan. Atreya S. K. Comfort Status in Naturally Ventilated Buildings of North-East India. Renewable Energy Asia - 2008: An International Conference and 4th SEE Forum Meeting. IIT Delhi, New Delhi, December 11-13, 2008. Proc. Renewable Energy and Environment for Sustainable Development, pp 1110-1116, Ed: V K Vijay, H P Garg, Narosa Publisher, New Delhi.


 * Singh Manoj Kumar. Mahapatra Sadhan. Atreya S. K. Sustainability through Bioclimatic Building Design in North-East India. 3rd International Solar Energy Society Conference, Asia Pacific Region; 46th ANZSES Annual conference (ISES-AP 2008), Sydney, Australia, 25 - 28 November 2008.


 * Singh Manoj Kumar. Mahapatra Sadhan. Atreya S. K. Bio-climatic Chart for Different Climatic Zones of North East India. Proceedings of 3rd International Conference on Solar Radiation and Day Lighting (SOLARIS 2007), pp 194-199, February 7-9th, 2007, Anamaya Publishers, New Delhi. ISBN 10:81-88342-54-8


 * Tiwari Anand Prakash. Mahapatra Sadhan. Role of Educational Institutions in the Management of Innovation and Technology. Proc. International Conference on Innovation & Technology Management (ICITM 2006), pp 170-174, February 3-5th, 2006, Calcutta. Ed. Book: Innovation and Technology Management, Macmillan Publisher (2008), New Delhi. ISBN 10:0230-63505-9


 * Singh Manoj Kumar. Mahapatra Sadhan. Design Guidelines for Construction of Energy Efficient Buildings in North-East India. International Congress on Renewable Energy (ICORE), February 8-11th, 2006, Hyderabad, India. Proceedings of the International Congress on Renewable Energy 2006, Transition to Renewable Energy-Emerging Global Opportunities. pp 346-350, Editors: E.V.R. Sastry and D.N. Reddy, Allied Publishers Pvt Ltd. New Delhi. ISBN: 81-7764-756-3


 * Sarma Anal Chandra. Mahapatra Sadhan. Village Electrification using Photovoltaic Systems in lieu of Grid Extension: Economic Analysis. Proc. 14th International Photovoltaic Science and Engineering Conference (PVSEC), Vol. II, pp 967-968, Bangkok, January 26-30, 2004.


 * Sarma Anal Chandra. Mahapatra Sadhan. Life Cycle Cost Comparison between SPV systems and Electric Grid Extension for Village Electrification. International Conference on Energy and Environmental Technologies for Sustainable Development, 8-10th October 2003, Jaipur. Proc. Energy Technologies for Sustainable Development. pp 53-58. Eds: Dr. Upender Pandel and Dr. M. P. Poonia. 1st ed. Ghaziabad, Prime Publishing House. 2004. ISBN: 81-8229-000-7, pp 53-58.


 * Mahanta Ajanta Kumar. Mahapatra Sadhan, Konwer D. Performance analysis of Biomass Gasifier systems with the variation of Electrical Load. Proc of International Seminar on Decentralized Energy: Options & Management (Challenges before Developing Countries), pp. 89-95, IE (I), Kolkata, 22-24th February 2002.


 * Borah Simanta. Mahapatra Sadhan. Sasi KK. Energy Conservation measures in Tea Processing Unit. Proc of International Seminar on Energy Conservation, Audit & Metering, Central Board of Irrigation & Power, Mumbai, 24-25th January 2002.


 * Ghosh Sonatan. Mahapatra Sadhan. Deka Dhanapati, Techno-Economic Analysis of Biomass Briquetting Technology for Rural Entrepreneurship: A Case Study. Proc. of International Conference on Renewable Energy for Rural Development, Ed. AK M Sadrul Islam, D G Infield, BUET, Dhaka, Bangladesh, pp 255-258, January 19-22, 2002.


 * Mahapatra S. Energy Conservation and Demand side Management in Lighting Sector - A Case Study. Int. Conf. on Lighting Technology, Proc. Prakash 99, pp. 9-12, New Delhi, Oct 29-31, 1999.


 * Mahapatra S. Performance Testing of Box type Solar Cooker in North Eastern Region. Proc. National Renewable Energy Convention, pp 58-59, Indore, Dec 20-22, 1999,

Contact

Sadhan Mahapatra

sadhan.mahapatra@gmail.com Subscript text