- Open Access
- Total Downloads : 12
- Authors : Preeti Rao, Dhananjay Kumar Yadav
- Paper ID : IJERTCONV3IS20062
- Volume & Issue : ISNCESR – 2015 (Volume 3 – Issue 20)
- Published (First Online): 24-04-2018
- ISSN (Online) : 2278-0181
- Publisher Name : IJERT
- License: This work is licensed under a Creative Commons Attribution 4.0 International License
A Study on Electricity Generation through Rice Husk Gasifier: A review
Department of Electrical Engineering
Parthivi College of Engineering & Management, Bhilai, Chhattisgarh
Dhananjay Kumar Yadav
Department of Mechanical Engineering Parthivi College of Engineering & Management, Bhilai,
Chhattisgarh Bhilai, India
Abstract In this paper study on the rice husk power plant is based on direct combustion technology. A Thermal steam power plant continuously converts energy stored in fuels (fossils/biomass) in to mechanical energy and ultimately into electrical power. The purpose of the paper is to collect and utilize available sustainable growth and un-utilized waste biomass resources effectively for generation of electricity. The technology used for power generation is environmentally friendly and will significantly contribute to the reduction of environmental pollution which in turn will directly affect the local and global Environment.
Keywords- Rice husk, gasifier, paddy, power generation.
India is second largest country in the world as the population point. India is also developing and fast growing country and also due to the very large population power demand is very high. The power demands of India fulfill 70-80% part by conventional fuels but these fuels are not are the environment friendly. So India concentrated on the renewable energy sources such as solar power, hydropower, wind power, geothermal energy, ocean tidal power and electricity by biomasses.
India is the second largest country to produce rice in the world. In India approximately 120 million tons of paddies are produced every year. Every year approximately 24 million tons of rice husk and 4.4 million tons of rice husk ash. Rice is a major cereal in India accounting for about 40% of food grain production and over 30% of its cropped area. Indias share in world rice production is 21%. Rice is the edible form of paddy (also known as rough rice) and in the process of conversion from paddy, rice husk and rice bran are generated as a by-product. The outermost layer of the paddy grain is the rice husk also called rice hull. It is separated from the brown rice in rice milling. Burning rice husk produced rice husk ash (RHA), if the burning process is incomplete carbonized rice husk (CRH) is produced. Technologies for conversion of husk into electricity and thermal energy at relatively higher efficiencies are now available. The present work is an attempt at assessing the financial feasibility of using rice husk as an energy source to meet on site electricity and/or thermal energy require. Since there are several technological problem yet to be resolved before the rice husk gasifier dual fuel engine generator systems could be considered an appropriate technological alternative to grid electricity or diesel generator sets in India, the primary objective of the
present work is to present a systematic methodology for financial feasibility evaluation of such systems .In fact the values of the various input parameters (like costs/ efficiency etc. Of the energy conversion equipment) used may be considered an indicative only. With more authentic input data available in near future, the methodology presented in this work could be used to arrive at specific realistic conclusion.
TABLE I. COMPOSITION OF RICE HUSK
Amount (%) of components
The availability of husk depends on the paddy production its proportion paddy production its processed into rice and the faction of husk in paddy. Total energy potential would depend upon its calorific value as well as the quantity available. Annual paddy production in the country can be estimated from the area under crop and its average productivity. These two parameters depend on several independent and interrelated factors such as the variety of paddy shown, proportion of irrigation area, fertilizers used, prevailing weather, price of paddy etc. Assessment of all such factors on a country wide basis with reasonable certainty is a very difficult task. Rice husk has certain properties mainly because of high silica content in its ash fraction and silica cellulose structural arrangement. It has an inherent resist to burning and its abrasive characteristics causes wear and tear of mechanical component coming in contact with husk.
DEMAND OF ENERGY FOR RICE PROCESSING
Rice processing mainly includes paddy parboiling its drying and milling. Paddy milled without parboiling produce raw rice otherwise termed as parboiled rice. Parboiling and drying operation largely require thermal energy whereas milling requires motive power which is generally provided through electric motors. Some electricity may also be used in motor handling.
Rice husk works as renewable source of energy.
Rice husk electricity production is much more reduces as compare to electricity produced by conventional fuels.
Ash of rice husk is useful in many industries like rain force brick, cement manufacturing etc.
As the production of electricity is approximately pollution free therefore electricity production is eco- friendly.
Figure 1. Block Diagram of the Electricity generation by Rice Husk
THERMO CHEMICAL CONVERSION OF RICE HUSK INTO
The available literature on use of rice husk as an energy source relates to its thermo chemical conversion. Combustion in furnaces as a boiler fuel or for generating heat is the traditional and well established technology for husk utilization but the overall heat utilization efficiency have been low. Through there are several technical problems yet to be resolved, gasifier of rice husk to generate producer gas is another technology which has potential for use in India. Producer gas can be used to generate motive power/electricity through the use of internal combustion engines and generators. It can also be used to generate thermal energy for use in process industries.
Type of Gasifier
Fluidized bed Gasifier
Counter-current fixed bed Gasifier
Co-current fixed bed Gasifier
Free radical Gasifier
Entrained flow Gasifier
System of Rice Husk Gasifier Structure
The gasification of rice husk is:
Circulation fluidized bed gasifier
Automatic controlling device
Figure 2. Various Zone of Rice Husk Gasifier
The use of rice husk waste material as a non-conventional fuel source for production of electricity. In this review also multi-fuel gasifiers: Gasifiers can use multiple types of feedstock such as rice husk, wheat husk, mustard stems, corn cobs, wood chips etc. The former problem of disposal of rice husk as waste gets solved too and the power generatedcan meet the thermal energy requirements. The decision regarding the choice of fuel for process steam is made based on the availability of rice husk and other techno-commercial consideration and cost benefits. In this process can generate employment for collection and supply of rice husks.
The substantial proportion of the energy demand of rice processing operations in India can be met with the currently available technology for exploitation of the energy potential of husk. Rice husk electricity production is much more reduces as compare to electricity produced by conventional fuels. The production of electricity is approximately pollution free therefore electricity production is eco-friendly. Ash of rice husk is useful in many industries like rain force brick, cement manufacturing etc.
The rice husk power plant is very helpful for villages and rural areas of provide electricity by using rice husk as fuel and also use some other waste resources.
Authors would like to thank to the researchers/academicians whose works have been cited directly or indirectly in this paper.
Pandey Ritesh, Sar Santosh K., Bhui Ashish Kumar, Feasibility of Installating RICE Husk Power Plant in Chhattisgarh to Meet Sustainable Energy Demands, International Journal of Advanced Engineering Research and Studies, Vol. 1, Issue 4, pp. 57-60, July-Sept 2012.
Pradhan Arjyadhara, Ali S. M and Dash Ritesh, Biomass Gasification by the use of Rice Husk Gasifier, Special Issue of International Journal on Advanced Computer Theory and Engineering (IJACTE), Volume-2, Issue-1, pp. 14-17, 2013.
Varshney Rajiv, Bhagoria J. L. and Mehta C. R., Small Scale Biomass Gasification Technology in India- an Overview, Journal of Engineering, Science and Management Education, Vol. 3, pp. 33-40, 2010.
Chungsangunsit Thipwimon, Gheewala Shabbir H., and Patumsawad Suthum, Environmental Assessment of Electricity Production from Rice Husk: A Case Study in Thailand, Electricity Supply Industry in Transition: Issues and Prospect for Asia, pp. 20-51, 14-16 January 2004.
Giddel M.R. and Jivani A.P., Waste to Wealth – Potential of Rice Husk in India a Literature Review, Proceedings of the International
Conference on Cleaner Technologies and Environmental Management PEC, Pondicherry, India. pp. 586-590, January 4-6, 2007.
Kumar Ajay, Mohanta Kalyani, Kumar Devendra and Parkash Om, Properties and Industrial Applications of Rice husk: A Review, International Journal of Emerging Technology and Advanced Engineering, Volume 2, Issue 10, pp. 86-90, October 2012.