Performance evaluation of an agricultural residue-based modular throat-type down-draft gasifier for thermal application
✍ Scribed by B.S. Pathak; S.R. Patel; A.G. Bhave; P.R. Bhoi; A.M. Sharma; N.P. Shah
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 348 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0961-9534
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✦ Synopsis
A 125 kg h À1 biomass gasifier of modular design was developed at the Sardar Patel Renewable Energy Research Institute (SPRERI) and tested on the thermal mode to test the concept. Based on these studies, a scaled-up 375 kg h À1 modular throat type, down-draft gasifier system was designed, developed and tested. The performance of the two systems is discussed in this paper.
The smaller gasifier when tested at a wood consumption rate of 55 kg h À1 gave a gas calorific value of 4.24 MJ N m À3 and cold gas gasification efficiency of 63%. The larger gasifier system was operated for about 50 h using agro-residues briquettes at gas flow rates of 213 and 278 N m 3 h À1 . The cold gas efficiency was in the range of 70-73%. The gasifier was also operated at a gas flow rate of 460 N m 3 h À1 using wood as feedstock at a cold gas efficiency of 71%. The gasifier system was also tested continuously for 10 h without any problem and it produced good quality of gas consistently.