20 May | Multi-Source Based Chulha

Our day two started with a brief discussion on Process flow diagram of Multi Source chullah. The discussion was mostly on increasing the energy efficiency by using waste energy to generate electric voltage using thermoelectric material (Seebeck Effect). Mind mapping was done on reducing the smoke, and thereby increasing the thermal efficiency of chullah. A visit to nearby house in Ghambharti was done to study different types of chullah. We had a brief interaction with family member about the chullah , type of fuel, quality of food, composition of chullah etc.

Sharda Ben's Chula

Sahda Ben's Sigdi

The other chulah of Sharda Ben

A brief conversation with Sharda Ben.

Sahrda Ben

Major findings:

- They use 3 chulahs (one to boil water outside the house, one to bake bajra roti, sigdi to cook vegetables)

- About 5-6kgs of wood required to boil 10L water

- Kerosene is used for starting the fire

Then the group visited the FAB Lab to look at the stoves previously developed. There was one commertial chula designed to be portable, made from steel, and had a oxygen vent to aid combustion and had two compartments one to put the fuel and other to collect residue.

The chula in FAB lab

The evening session was with Prof Anil K Gupta, who gave valuable tips on approach of grassroot problem. Various research topics were discussed. The evening session was with Mr. Ted Moallem. He asked about progress in different projects. The day ended with finalization on mind-map of multisource chullah and preparation for next day visit. The questionare was prepared for the upcoming field visit.

Questionaire... 1. Name of the Interviewee 2. Since when are you using the chulha? 3. What type of fuel do you use? 4. How do you store timber? 5. What are the different types of wood used? 6. Seasonal Variation of wood usage 7. What do they do during rainy season? 8. What do you do with unburnt wood and the residue? 9. How much time and wood is required to boil 10L of water? 10. Have you tried a mixure of fuels? 11. Problems faced due to smoke? 12. Past health problems 13. Maintenance of chulha 14. Lifespan of chulha 15. Types of utensils 16. Impact and awareness of government schemes for subsidised LPG? 17. How do you deal with wet wood? 18. Problems related to the preparation of fuel? 19. Cost of wood. 20. Source of fuel 21. What problems do you face in the general use of chula? 22. Have you experimented with the chula to find solutions to these problems? 23. What are your views regarding the installation of chimney if it drastically improves the smoke condition and the overall efficiency?

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Team members: Sandesh Agrawal, Janhavi Thaly, Paras Dhiman, Mahima Modi