The Score Stove™2 is a low-smoke cook stove with high combustion efficiency. When cooking with wood fuel or other fuels such as dung or crop residuals, it produces additional electrical energy through the combustion heat. Using the electro-acoustic effect with the help of an innovative device, powerful sound waves are produced in combination with a linear electrical generator. The sound emmitted by the stove is no louder than a hum. The electricity produced by the Score Stove can be used to charge 12 V batteries or to provide main AC voltage. The stove is designed to be used in developing countries and can bring electricity to people in rural or remote areas. The Score Stove uses 30 to 50% less wood than the conventional 3 stone stove, thus, reducing deforestation. Working prototypes of Score Stove™2 exist in the UK, Malaysia, Bangladesh and Nepal. Trials have proven that the divice can produce enough electricity to light two LEDs whilst cooking a meal, eg. eggs and rice.
2.7 billion people still depend on firewood, charcoal, dung and crop residues for their daily cooking and heating. The health risks of the traditional cooking practices should not be underestimated: Rudimentary wood-fired cook stoves and open fires emit fine particles, carbon monoxide, and other pollutants at levels up to 100 times higher than the recommended limits set by the World Health Organisation (WHO, 2011).
Chronic exposure to smoke from traditional cooking practices is one of the biggest, albeit least known, death causes. Every year nearly 2 million people die prematurely from illnesses, which are caused by indoor air pollution from inefficient solid fuel use in the households. Nearly 50% of pneumonia-related deaths amongst children under the age of five are due to particulate matter inhaled from indoor air pollution (WHO, 2011).
The Score Stove may help to provide small-scale electricity generation to areas where supply is limited. As the stove traps the heat and smoke which are produced by the fire, it reduces the amount of smoke that escapes into the air and therefore minimizes negative health effects for the families. It also has a positive environmental effect, as the stove consumes much less wood than a normal 3 stone fire stove, thanks to its energy-saving design. The Score Stove will be adapted for the use of liquid paraffin as many rural communities in Africa are still highly dependent on it.
The electricity produced by the Score Stove can be used to charge 12 V batteries or to provide main AC voltage. A mere 20 watts of electricity can revolutionize lives in rural households in developing countries, by providing access to lighting, radios and cell phones.
- 23 watts of electricity using wood as the fuel
- 37 watts under laboratory conditions
Energy efficiency: 30 to 50% less fuel than a conventional 3 stone stove
Costs: £60 (Core technology)
Asia: Bangladesh, Malaysia, Nepal
Europe: United Kingdom
Organization: The University of Nottingham - United Kingdom
Contact: Paul Riley
Used by: Bangladesh, Malaysia, Nepal, United Kingdom
Food & Agriculture