Mrs. Shyamala Prakash Shingare
B. Tech., M. E. (Currently Ph. D. Student)
Email: ce07sp.shingare@ictmumbai.edu.in
| Education Details | ||
Course |
Institute/University |
Year of Passing |
| B. Tech. Chemical Engineering |
Laxminarayan Institute of Technology, Nagpur, Maharashtra. | 1987 |
| M. E. | Laxminarayan Institute of Technology, Nagpur, Maharashtra. | 1993 |
| Ph. D. Tech. Chemical Engineering |
University Institute of Chemical Technology, UICT, Mumbai | - |
Abstract of Ph. D. Thesis:
STUDIES IN DEHYDRATION OF BIOMASS AND CELLULOSIC MATERIALS
Energy supply and demand data shows that the world annual consumption of energy in 2007 was 1.13 x 1014 kWh or 11.27 billion tones of oil equivalent. Eighty six percentage of this came from fossil fuels including oil, gas and coal. This released 27 billion metric tons of carbon dioxide to the atmosphere. Our heavy reliance on fossil fuels has already caused serious consequences such as global warming and a looming energy crisis, therefore finding alternative and sustainable energy resources has been a critical issue to ensure future energy supply and to reduce greenhouse gas emissions.
Biomass is a substantial amount of bio-origin resources which can be utilized in the form of energy and materials . It has been recognized as the most promising resource for future energy. Biomass store large energy which is many times more than the total energy need of the world , still only 10-15% of world’s total energy comes from biomass use. In India , about 46% of the total energy consumption is estimated to be met from various biomass resources i.e. agricultural residues, animal dung, forest wastes, fire wood, etc. India produces a huge quantity of agricultural residues, which can be converted into energy. Biomass is available in the country in large quantities in the form of agricultural ,forestry and agro-industrial residues. More than 500 million tones of crop residues are produced every year, a large portion of which is either wasted or used inefficiently. Conservative estimates indicate that even with the present utilization pattern of these residues and by using the surplus biomass material, more than 16000 MW of grid-quantity power can be produced if all the sugar mills in the country switched over to modern techniques of co-generation.
.The biomass, in the forms of wood chips, sawdust, bagasse, grass and agricultural crops which absorbs carbon dioxide needed for photosynthesis for their growth. In this way, the whole system, from feedstock growing through energy processing to energy consumption, is carbon neutral. However, since biomass has bio-origin and it may have initial moisture content from 50 to 150 % in the fresh form. In order to increase the energy efficiency, improve the energy product quality and reduce emissions in the energy conversions such as combustion, gasification and pyrolysis, drying of the biomass to the required moisture content is important in the development of alternative energy systems. Drying biomass fuel provides significant benefits to boiler operation. Using dry fuel in a direct combustion boiler results in improved efficiency, increased steam production, reduced fuel use, lower emissions, improved boiler operation. One reason for these benefits is an increased flame temperature. With wet fuel, some heat of combustion is used to evaporate the water in the fuel. In gasification and pyrolysis , biomass needs to be dried to even lower moisture content from 2 to 10% , to reduce the water content in the energy products.
Extensive literature survey has been carried out on types of biomass used in different industries. The present work will consists of effect of various parameters such as initial moisture content, drying medium used, gas velocity, gas temperature and humidity on biomass .The study will includes drying characteristics of various biomass materials. The work will also involve selecting the energy efficient drying process. The in-depth study of the drying kinetics at different operating conditions such as, gas temperatures, gas velocities will be carried out. A number of dryer types and drying technologies can potentially be used for biomass drying. Selection of the dryer and optimization of drying conditions need in-depth understanding quantification of the biomass material, requirement of energy conversion and other drying process will be investigated.