J. Eng. Technol. Sci., Vol. 54, No. 6, 2022, 220608 Received June 9 th , 2022, Revised October 7 th , 2022, Accepted for publication October 24 th , 2022. Copyright ©2022 Published by ITB Institute for Research and Community Services, ISSN: 2337-5779, DOI: 10.5614/j.eng.technol.sci.2022.54.6.8 Mobile Rice Husk Gasifier Performance and Techno- Economic Analysis as Micro Scale Power Generation: Modeling and Experiment Sarah Pertiwi 1 , Yohanes Bobby 1 , Marcellino Lorenzo 1 , Hafif Dafiqurrohman 2 & Adi Surjosatyo 1,3 1 Department of Mechanical Engineering, Faculty of Engineering, Universitas Indonesia, Kampus UI, Depok 16424, Indonesia 2 Department of Mechanical Engineering, Faculty of Engineering, The University of Tokyo, Tokyo 113-8654, Japan 3 Tropical Renewable Energy Center, Faculty of Engineering, Universitas Indonesia, Kampus UI, Depok 16424, Indonesia *E-mail: adisur@eng.ui.ac.id Highlights:  Gasifier performance provided by simulation and experimental results.  Maximum performance was found at an equivalent ratio of 0.25.  The feasibility of a mobile rice husk gasifier was studied; it is economically feasible as a waste-to-energy technology. Abstract. Indonesia annually produces significant amounts of biomass waste in the agriculture sector. Rice husk, one of the highest produced agricultural waste materials, has sufficient caloric value to produce syngas in a gasification system to generate sustainable energy. However, the production of tar from rice husk gasification is significantly high, damaging the equipment and internal combustion engine. This study carried out performance analysis on a small-scale rice husk gasifier. A simulation provided a syngas composition overview and showed a maximum LHV value of 6.47 MJ/Nm 3 at ER 0.25, and a maximum CGE value of 83% at a temperature of 900 ℃. Furthermore, the economic aspect of integrating renewable technology was also considered. The gasifier had an LCOE value ranging from 0.014 to 0.089 USD/kW, depending on the use of the gasifier. The feasibility of using a mobile rice husk gasifier was also inspected, based on net present value, benefit-to-cost ratio, and payback period. Keywords: biomass; gasifier; techno-economic analysis; downdraft; waste-to-energy. 1 Introduction As an agricultural country, Indonesia relies heavily on biomasses. It is estimated that up to 35.6 GW of energy can be provided by utilizing biomass waste from farm industries, with rice as the primary food in Indonesia, which potentially could deliver 19.41 GW of power from its waste [1]. Xiong, et al. (2009) state that 20% of rice production is rice husks, which could produce 3,053 tons cal/ton