IIT Guwahati develops fuel-efficient tech for stoves; gives it for commercial use

at 9:01 pm
Energy Efficient Stoves

GUWAHATI: The Indian Institute of Technology (IIT) Guwahati today said its researchers have developed an energy-efficient and environment-friendly technology for cook-stoves and it has been transferred to an industry partner for commercial use.

The ‘Porous Radiant Burners’ for cook-stoves can help save fuel in the range of 25 to 50 per cent and can be operated with LPG, Biogas and Kerosene, it said, adding the technology has been developed by a research team headed by Prof. P. Muthukumar, Department of Mechanical Engineering, IIT Guwahati.

This technology has been transferred to Bengaluru-based Agnisumukh Energy Solutions Private Ltd for commercialization.

“This effort will be a major contribution of IIT Guwahati towards the Government of India’s efforts to enhance the access to clean cooking energy by promoting LPG, biogas and improved cook-stoves (ICS) through various policies and programs,” it said in a press statement.

Highlighting the unique aspects of ‘Porous Radiant Burner,’ Prof Muthukumar said, “These indigenously developed cook-stoves equipped with specially-designed double layered PRBs provide fuel saving in the range of 25-50 % and reduces CO and NOx emissions by about 80 per cent. The newly developed PRB is ideally suited both gaseous fuels like LPG, Biogas, PNG and liquid fuels like Kerosene, Methanol and Ethanol, for domestic as well as community/commercial cooking.”

The IIT Guwahati research team believes that the commercialization of Porous Radiant Burner (PRB)-based LPG cook stoves across India will provide a huge LPG saving of about 13 lakh domestic cylinders per day and also will have a global impact on the burner-based applications, it said.

Speaking on the occasion of MoU signing, Prof. T. G. Sitharam, Director, IIT Guwahati, said that PRB-based cook-stove technology will play a key role in reducing the overall fuel consumption in the cooking sector, leading to a huge annual saving of about Rs. 50,000 crore for the Government, thus reducing the financial burden significantly and conserving energy.

Further, it will also provide a better cooking environment by reducing CO and NOx emissions, he said.

“Indian cooking system and global culinary world destroyed the nutrition of food by introducing modern fuel (LPG, Natural Gas) which reduced the intensity of heat but increased the pressure, while the traditional practice of cooking was based on intense heat totally on atmospheric pressure the Porous Radiant Burner technology will bring back the best practices in thermal management in cooking & industrial applications,” said Agnisumukh Energy CEO Hari Rao.

One of the targets of Sustainable Development Goal 7 (SDG 7) is to ensure availability and usage of clean cooking fuel to 100 per cent of households by 2030. However, SDG India dashboard indicates that only 56 per cent of households use clean cooking fuel. The country needs to cover around 44 per cent of households in the next nine years.

In order to achieve this goal, accessibility, affordability and product awareness have to be considered while developing new sustainable cooking solutions. One of the important aspects of cooking solutions is the development of efficient and eco-friendly cook-stoves.

Being the second most populated country in the world, India has a large LPG consumer base of about 28 crore which makes cooking an energy-intensive sector. Further, India imports about 50 per cent of its LPG requirement. 

Further, household pollution accounts for about 6.5 per cent of the total deaths in India every year. Household air pollution is caused mainly by the use of polluting cooking fuels and inefficient cook-stoves. Use of PRB reduces CO and NOx emissions by about 80 per cent, resulting in better indoor air quality.