Cookstoves with Porous Radiant Burner (PRB) for Domestic and Commercial Applications

In an effort towards improving the performances of the liquid and gas based combustion devices, in the recent past, Porous Media Combustion (PMC), has emerged as a potential solution. Unlike the conventional combustion devices in which combustion takes place completely in the gaseous environment, in the PMC, the porous media augments the combustion, and depending upon the situation, the combustion can be completely inside or on the surface of the porous matrix. If a larger surface area to volume ratio increases the heat transfer by convection, the highly conducting and radiating porous matrix also augments heat transfer by conduction and radiation. Because the gases have low thermal conductivity and emissivity, in the Free Flame Combustion (FFC), the heat transfer is mainly by convection. On the other hand, all three modes of heat transfer are significant in the PMC. Thus, in the PMC, combustion is better and it results in improved thermal efficiency and low emissions. In addition to these, in the PMC, low calorific value fuels can also be combusted.

Two main objectives

1. To develop energy efficient and eco-friendly PRB for domestic and commercial cookstoves
2. To extend its application for other alternative fuels like Waste Cooking Oil (WCO) and Bio-gas, are focused during development of Porous Radiant Cookstoves (PRCs)

Standard for Thermal efficiency and emission measurements

• BIS 4246:2002 for LPG
• IS 8749:2002 for Bio gas
• BIS (IS 10109:2002) for Kerosene

LPG Cookstoves

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1.5-3 kW Domestic Pressurized Kerosene cook-stove

• Tank Pressure: 1.2-1.5 bar
• Burner Size: 70 mm

 

Performance assessment 1-3 kW Biogas Cook-Stove with Porous Radiant Burner