Experimental Analysis of a Porous Radiant Pressurized Cook Stove by Using a Blend of Waste Cooking Oil (WCO) and Kerosene

A large number of populations in developing countries still continue to use various forms of solid fuels as the primary energy source for cooking. Maintaining uninterrupted availability of fuel at an affordable price demands them to achieve Sustainable Development Goals (SDGs). In this paper, a comparative thermal performance assessment of Porous Kerosene Pressure Cookstove (PKPs) and Conventional Kerosene Pressure Cookstove (CKPs) are presented. The experiments are conducted by using two different, Waste Cooking Oil (WCO) and kerosene blends (BS1, 10/90: WCO/Kerosene by % volume) and BS2 (50/50)). Also, the impact of firing power (1.5-3 kW) on burner characteristics are established and compared for both the stoves. With fuel sample BS1, the measured thermal efficiency is found in the range of 51.2-44.8% and 43-33.3% for PKPs and CKPs, respectively. Whereas, the same is in the range of 45.3-37.8% and 36.2-28.6%, respectively, in case of BS2. Due to improved combustion in case of porous media burner (i.e. PKPs), a large reduction is found for CO and NOx emissions. The overall performance of PKPs shows WCO as a potential alternative source for cooking.