Aris Purwanto

• Master of Science
• Lecturer at Universitas Negeri Surabaya

This study investigated the combustion behaviors of pure iron and mixed particles, particularly iron–aluminum and iron–coal mixtures, doped into methane (CH4)–air premixed flames. The mechanically mixed particles were prepared with a weight ratio of 1:1. Thermogravimetric analysis revealed that the Fe particles and the Fe–coal mixture underwent oxi...

Compared to gaseous hydrocarbon flame, a metal hybrid flame has higher energy and even has a higher flame temperature. This study explored the micro-explosion mechanisms of iron particles in methane-air premixed flames. Four different particle sizes were used in this experiment, that is 2–10 μm, 50 μm, 100 μm, and 150 μm. A conical methane-air prem...

Energy problems are one of the cases faced by almost all countries in the world. No longer found oil reserves in significant quantities causing problems in the energy sector. The world's energy needs continue to increase and become a global problem in the use of energy in various sectors resulting in an energy crisis. The use of waste-to-energy (Wt...

Research on micro/meso combustor-based small-scale power plants is developing rapidly. This rapid development is motivated by a higher energy density than lithium-ion batteries. In addition, energy needs for portable and mobile devices also drive this development. Based on the opportunities and needs of these small-scale power plants, this study fo...

The development of portable electronic devices has increased; this development needs to be accompanied by the development of reliable power sources. In this study, two different vortex combustor sets were used in conjunction with a thermoelectric generator to determine their energy output. This study focuses on the development of a meso-scale vorte...

When aluminum is mixed with zirconium, aluminum would evaporate and oxidize with oxygen. Alumina would attach with zirconium. Nitrogen and oxygen would dissolve into zirconium particles and form bubbles. Then, bubbles would grow gradually due to nucleation. However, the severe growth rate of bubbles led to micro-explosion phenomena. It is a so-call...

The flame stabilization limit on micro-combustor had studied to support the micro power generator system. Micro-combustion became the crucial components in a micro power generation system as heat resource that will be converted into electricity. However, the unstable flame in micro-combustor became the main problem that faced by researchers, especi...

A meso-scale vortex combustor has been designed in order to common flame quenching problems in meso/micro scale burning. Numerical simulations using Computational Fluid Dynamic (CFD) Ansys Release 19.0 Academic program was performed to determine a stable combustion flame. Combustor chamber made from two steps, first step diameter 6 mm with 4 mm dep...