| Autor: |
Saravanakumar, A.1 sara_mnes@yahoo.co.in, Haridasan, T.M.2, Reed, Thomas B.3 |
| Předmět: |
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| Zdroj: |
Fuel Processing Technology. Jun2010, Vol. 91 Issue 6, p669-675. 7p. |
| Abstrakt: |
Abstract: The future industrial development of biomass energy depends on the application of renewable energy technology in an efficient manner. Of all the competing technologies under biomass, gasifiers are considered to be one of most viable applications. The use of biomass fuel, especially biomass wastes, for distributed power production can be economically viable in many parts of the world through gasification of biomass. Since biomass, is a clean and renewable fuel, gasification gives the opportunity to convert biomass into clean fuel gas or synthesis gas for industrial uses. The preparation of feedstock for a gasifier requires time, energy and labour and this has been a setback for gasifier technology development. The present work is focused on gasification of long-stick wood as a feed material for gasifiers. This application makes reduction not only in the cost but also on the power consumption of feed material preparation. A 50m3/h capacity gasifier was fabricated in the cross draft mode. The cross draft mode makes it possible to produce low tar content in producer gas. This cross draft mode operates with 180W of blower supply for air to produce 10kW of thermal output. The initial bed heights of the long-stick wood and charcoal are 58cm and 48cm respectively. Results were obtained for various flow conditions with air flow rates ranging from 20 to 30m3/h. For modelling, the flaming pyrolysis time for long-stick wood in the gasifier is calculated to be 1.6min. The length of the flaming pyrolysis zone and char gasification zone is found to be 34cm and 30cm respectively. The rate of feed was between 9 and 10kg/h. Continuous operation for 5h was used for three runs to study the performance. In this study we measured the temperature and pressure in the different zones as a function of airflow. We measured the gas flow and efficiency of the gasifier in order to determine its commercial potential for process and power industries. [Copyright &y& Elsevier] |
| Databáze: |
GreenFILE |
| Externí odkaz: |
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