The Effect of Insulation Thickness on Heat Transfer Characteristics and Flammability in Tube Mesoscale Combustors

Authors

  • Evita Leninda Fahriza Ayuni Department of Mechanical Engineering, Faculty of Engineering, University of Muhammadiyah Malang, Indonesia
  • Andinusa Rahmandhika Department of Mechanical Engineering, Faculty of Engineering, University of Muhammadiyah Malang, Indonesia
  • Daryono Department of Mechanical Engineering, Faculty of Engineering, University of Muhammadiyah Malang, Indonesia
  • Ardi Lesmawanto Department of Power Mechanical Engineering, National Formosa University, Yunlin 63201, Taiwan
  • Krisna Bayu Rizkyawan Department of Mechanical Engineering, Faculty of Engineering, University of Muhammadiyah Malang, Indonesia
  • Ali Mokhtar Department of Mechanical Engineering, Faculty of Engineering, University of Muhammadiyah Malang, Indonesia
  • Achmad Fauzan Hery Soegiharto Department of Mechanical Engineering, Faculty of Engineering, University of Muhammadiyah Malang, Indonesia

DOI:

https://doi.org/10.37934/arfmts.116.2.157171

Keywords:

Mesoscale combustor, mesh, insulation thickness, flammability, heptane

Abstract

Micropower generator is a micro-scale energy source that has two main components, namely a micro/mesoscale combustor and thermophotovoltaics (TPV). The micro-scale combustor is one part that functions as a combustion chamber that produces heat in micropower plants. Heptane is used as fuel, while the combustor combustion chamber with a diameter of 3.5 mm is made from duraluminium-quart glass tube. Combustion stability in the combustion chamber is influenced by several factors, such as temperature, geometry, and combustion chamber design. In order to maintain flame stability, mesh is added to the combustion chamber. One way to minimize heat loss in the combustion chamber is to add an insulating layer to the combustion chamber. This research aims to prove the role of adding an insulating layer in flame stability in mesoscale burners. It is necessary to add an appropriate insulating layer to minimize heat loss so that it remains stable in the mesoscale burner. This experimental test shows that the temperature distribution when adding an insulation layer with a thickness of 3 mm has a higher temperature on the outside compared to a thickness of 6 mm. Meanwhile, the temperature inside the combustor chamber with a thickness of 6 mm is superior to that with a thickness of 3 mm. The flame limit of the combustor with a mesh distance of 5 mm for liquid heptane fuel was successfully stable at an equivalent ratio of ɸ0.97 – 1.5 with a maximum speed of 31.7.

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Author Biographies

Evita Leninda Fahriza Ayuni, Department of Mechanical Engineering, Faculty of Engineering, University of Muhammadiyah Malang, Indonesia

evitaleninda12@gmail.com

Andinusa Rahmandhika, Department of Mechanical Engineering, Faculty of Engineering, University of Muhammadiyah Malang, Indonesia

andinusa@umm.ac.id

Daryono, Department of Mechanical Engineering, Faculty of Engineering, University of Muhammadiyah Malang, Indonesia

daryono@umm.ac.id

Ardi Lesmawanto, Department of Power Mechanical Engineering, National Formosa University, Yunlin 63201, Taiwan

d0775105@nfu.edu.tw

Krisna Bayu Rizkyawan, Department of Mechanical Engineering, Faculty of Engineering, University of Muhammadiyah Malang, Indonesia

krisnarizky117@gmail.com

Ali Mokhtar, Department of Mechanical Engineering, Faculty of Engineering, University of Muhammadiyah Malang, Indonesia

mokhtar@umm.ac.id

Achmad Fauzan Hery Soegiharto, Department of Mechanical Engineering, Faculty of Engineering, University of Muhammadiyah Malang, Indonesia

achmadfauzan@umm.ac.id

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Published

2024-04-30

How to Cite

Evita Leninda Fahriza Ayuni, Andinusa Rahmandhika, Daryono, Ardi Lesmawanto, Krisna Bayu Rizkyawan, Ali Mokhtar, & Achmad Fauzan Hery Soegiharto. (2024). The Effect of Insulation Thickness on Heat Transfer Characteristics and Flammability in Tube Mesoscale Combustors. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 116(2), 157–171. https://doi.org/10.37934/arfmts.116.2.157171

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