Journal of Power and Energy Engineering, 2015, 3, 458-466
Published Online April 2015 in SciRes. http://www.scirp.org/journal/jpee
http://dx.doi.org/10.4236/jpee.2015.34063
How to cite this paper: Ehsan, M., Sarker, M., Mahmud, R. and Riley, P.H. (2015) Performance of a Score-Stove with a Ke-
rosene Burner and the Effect of Pressurization of the Working Fluid. Journal of Power and Energy Engineering, 3, 458-466.
http://dx.doi.org/10.4236/jpee.2015.34063
Performance of a Score-Stove with a
Kerosene Burner and the Effect of
Pressurization of the Working Fluid
Md Ehsan1, Manabendra Sarker1, Rifath Mahmud1, Paul H. Riley2
1Department of Mechanical Engineering, Bangladesh University of Engineering and Technology (BUE T),
Dhaka, Bangladesh
2Department of Electrical Engineering, University of Nottingham, Nottingham, UK
Email: ehsan@me.buet.ac.bd
Received January 2015
Abstract
Score-S tove TM a clean-burning cooking stove that also generates electricity was tested using a
pressurized kerosene burner. The Score-Stove works on the principle of thermo-acoustics to gen-
erate small-scale electricity. The device having hot-end, cold-end and regenerator acts in a way
similar to a stirling cycle generating acoustic power, which is then converted to electricity using a
linear actuator. It can supply small power for applications such as LED lighting, mobile phone
charging and radios particularly in rural areas without grid electricity as well as improving house-
hold air pollution. After assessing the needs of the rural communities through a survey, tea-stalls
and small restaurants owners were identified as clients with the most potential of using the stove
in Bangladesh. Bangladesh University of Engineering and Technology ((BUET) modified a Score-
Stove to use both wood and a pressurized kerosene burner of a design that is widely used for
cooking in rural areas of Bangladesh. The design was adapted to meet performance needs such as:
heating rate, cooking efficiency, energy distribution, electric power generation, exhaust emissions
and time taken to boil water using standardized water boiling tests. Performance was also com-
pared with conventional (non-electrically generating) stoves that use a pressurized kerosene burn-
er. The Score-Stove performance was then evaluated while increasing the pressure of the sealed
working fluid (air in this case) from atmospheric to about 1.4 bar. The pressurization was found to
almost double the power generation. An arrangement for utilizing cooling water waste heat was
also devised in order to improve the thermal performance of the stove by 18%. Technical defi-
ciencies are documented and recommendations for improvements and future research in order to
obtain wider end-user acceptance are made.
Keywords
Score-S tove , Small-Scale Power, Therm o-Ac oustic s, Clean Cooking Stove, Kerosene Burner,
Pressuriza tion
M. Ehsan et al.
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