Experimental and Numerical Studies of Porous Media Combustion in Micro Burner

Ayub Ahmed Janvekar; Mohd Zulkifly Abdullah; Zainal Arifin Ahmad; Mohammad Zuber; Ahmad  Kamal  Ismail; Ahmed  Hussien; Pramod  Kataraki; Mazlan  Mohamed; Musavir Bashir; Khairil Fadzli

Authors

Ayub Ahmed Janvekar School of Mechanical Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Penang, Malaysia
Mohd Zulkifly Abdullah School of Aerospace Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Penang, Malaysia
Zainal Arifin Ahmad School of Materials and Mineral Resources Engineering, Engineering Campus, 14300 Nibong Tebal, Penang, Malaysia
Mohammad Zuber Department of Aeronautical and automobile Engineering, Manipal university, India
Ahmad Kamal Ismail Mechanical Section, UniversitiKuala Lumpur Malaysian Spanish Institute, 09000 Kulim Hi-Tech Park, Kedah, Malaysia
Ahmed Hussien School of Mechanical Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Penang, Malaysia
Pramod Kataraki School of Mechanical Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Penang, Malaysia
Mazlan Mohamed Advances Material Research Cluster, Faculty of Bioengineering and Technology, Universiti Malaysia Kelantan, Jeli Campus, 17600 Jeli, Kelantan, Malaysia
Musavir Bashir School of Aerospace Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Penang, Malaysia
Khairil Fadzli School of Aerospace Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Penang, Malaysia

Keywords:

Porous media combustion , porous media burner , equivalence ratio , thermal efficiency , numerical simulation, NOx and CO

Abstract

Porous media combustion has been key point of interest for researchers from past couple of decades due its numerous advantages, such as remarkable low emission levels without compromising thermal efficiency. In this present work, dual layered micro burner was built with predefined thickness of reaction and preheat layer. Reaction layer was made up of alumina (discrete type) while preheat layer porcelain (foam type) material. Burner was successfully built to undergo both surface and submerged flames. A concept of equivalences ratio was enabled since its premixed combustion with natural air as one of the inlet along with butane. Trials were not just restricted at stoichiometric ratio but also carried out up to ultra-lean region. Additionally, numerical simulation was performed using commercially available computational fluid dynamics package so that porous media combustion phenomenon can be better analyzed and predicted. Finally, Thermal efficiency was calculated at critical equivalence ratios and emission parameters such as NOx and CO was continuously monitored which were under controlled limits