Effect of Dimethyl Ether (Dme) as LPG Substitution on Household Stove: Mixture Stability, Stove Efficiency, Fuel Consumption, and Materials Testing

Abstract

DME has characteristics similar to LPG so that the storage and handling are not so different from LPG. DME could be used as a solvent that can extract typical types of rubber/polymer material. The aims and objectives of this study are to determine the effect of DME/LPG (100/0, 80/20, 50/50, 30/70, 20/80) on the stability of the DME/LPG mixture on the stove and also to observe the effect on several rubber materials/polymers on stove accessories. The study reveals that the usage of a DME/LPG mixture between 20/80 - 30/70 does not require a replacement of any substitute materials but only requires minor modifications to the stove. However, at a higher DME composition, the use of the fuel needs to replace the seal that is resistant to DME. It occurs due to the change of the gas composition when it is used.

LITERATURE STUDY ON THE SCREENING OF Al-MOFs POROUS MATERIAL FOR DIMETHYL ETHER (DME) GAS PURIFICATION

“…It has a very high critical temperature (400°K) and can be liquefied at room temperature. Its density in the liquid phase is close to LPG (Murti et al, 2021). It has a molecular weight of 46.684 g mol -1 , a critical pressure of 54 bar, a critical temperature of 401°K, a boiling point of 249°K at 1 atm, a density of 0.663 g.cm -3 at 298°K, a viscosity of 0.15 cP or 0.15 kg.m.s -1 , equivalent to the viscosity of propane and butane (LPG), and surface tension of 11.731 dyne.cm -1 (Mohan et al, 2017).…”

“…The Indonesian Ministry of Energy and Mineral Resources (ESDM) targets to replace the consumption of liquid petroleum gas (LPG) with dimethyl ether (DME) (ESDM, 2020). This is due to the increasing demand for LPG supply, which reaches 7 tons per year, of which 70% is imported and expected to rise by 17.4 tons by 2050 (Yuliarita et al, 2020;Murti et al, 2021). The DME is currently one of the alternative fuels to replace LPG (Anggarani et al, 2014), targeted to reduce the increasing dependence on LPG imports in Indonesia (Ramadhani et al, 2020).…”