Development of An Air-Stage Downdraft Gasifier and Performance Evaluation on Feedstock of Rice Husk

Susastriawan, Anak Agung Putu (2021) Development of An Air-Stage Downdraft Gasifier and Performance Evaluation on Feedstock of Rice Husk. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 84 (1). pp. 20-32. ISSN 2289-7879

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Due to depletion of conventional fuel and increasing global warming, biomass wasteshave been explored and investigated by many researchers worldwide. A biomassgasification power plant is a promising conversion technology for energy sustainability.From many existing gasifiers have been developed, mostly they have high technology,large capacity, and very costly, thus unsuitable for remote area di Indonesia. Thepresent work aims to build a simple and low cost double air-stage downdraft gasifierfor a small-scale biomass power plant system. The gasifier is tested on rice husk atequivalence ratio of 0.20, 0.30, and 0.40. The parameters evaluated are axial temperature, fuel consumption rate, heating rate, thermal efficiency, and tar content.The results show that the highest gasification temperature, fuel consumption rate,heating rate, and thermal efficiency are occurs at equivalence ratio of 0.4. The valuesare 904.5°C, 4.14 kg/h, 25.38 kJ/h, and 63.18%, respectively. The significant findings isthat the gasifier generates producer gas with low tar content, i.e. 23.9 mg/m3 at equivalence ratio of 0.4 and the producer gas is successfully used to run the 3 kWgenerator set. For sustainability operation of the power plant, it is important to testthe gasifier on various biomass waste feedstocks.

Item Type: Article
Uncontrolled Keywords: Biomass; downdraft; equivalence ratio; gasifier; power plant
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Fakultas Teknologi Industri > Rekayasa Mesin (S2)
Depositing User: Dr. Anak Agung Putu Susastriawan
Date Deposited: 07 Jan 2022 06:30
Last Modified: 22 Jun 2022 06:35

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