The potential for wood gasifiers for tea drying in Sri Lanka

Jayah, T. H., Fuller, R. J., Aye, Lu and Stewart, D. F. 2001, The potential for wood gasifiers for tea drying in Sri Lanka, International Energy Journal, vol. 2, no. 2, pp. 85-94.

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Title The potential for wood gasifiers for tea drying in Sri Lanka
Author(s) Jayah, T. H.
Fuller, R. J.
Aye, Lu
Stewart, D. F.
Journal name International Energy Journal
Volume number 2
Issue number 2
Start page 85
End page 94
Total pages 9
Publisher Regional Energy Resources Information Center
Place of publication Pathumthani, Thailand
Publication date 2001-12-01
ISSN 1513-718X
Summary One of the reasons for the higher production cost of tea in Sri Lanka compared to other countries is the high specific energy consumption. In Sri Lanka, 38% more energy is used to produce one kilogram of tea compared to India, largely because of the use of inefficient wood-fired air heaters. Gasifiers have been proposed as an alternative method of providing the hot air used for drying. A locally built gasifier has been tested and found to have a conversion efficiency of 80%, which is comparable to that of an imported unit. The heat loss of the local gasifier was found to be between 11.5-14% of the input energy. An analysis shows that the life cycle cost of energy produced by the gasifier is US$3.00 per GJ, which is 8% less than the cost of energy from a conventional wood heater. Wood consumption is also reduced by 12%. Some transfer of gasifier technology to the crematoria industry in Sri Lanka has already occurred and this enhances the prospect of the successful introduction of this technology to the tea industry.
Language eng
Field of Research 0906 Electrical And Electronic Engineering
0913 Mechanical Engineering
HERDC Research category CN.1 Other journal article
Copyright notice ©2001, Regional Energy Resources Information Center
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