An Experimental Investigation on Gasification Characteristic of Pongamia Residue (Shell and De-Oiled Cake) as a Source of Energy for Rural Areas

This paper has been aimed for thermochemical gasification of Pongamia residue (mixture of shells and de-oiled cake) generated from the oil expellers and biodiesel production plants. Pongamia mixture pellets (with 11.5 mm diameter and average length in the range of 10–62 mm) were prepared and gasify...

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Bibliographic Details
Published in:Waste and biomass valorization 2017-04, Vol.8 (3), p.987-997
Main Authors: Prasad, Lalta, Subbarao, P. M. V., Subrahmanyam, J. P.
Format: Article
Language:English
Subjects:
Biodiesel fuels
Biomass
Calorific value
Compression ratio
Downdraft
Electric power generation
Emission analysis
Engineering
Environment
Environmental Engineering/Biotechnology
Full load
Gasification
Industrial Pollution Prevention
Original Paper
Pellets
Plants (botany)
Producer gas
Renewable and Green Energy
Rural areas
Spark ignition
Thermocouples
Thermodynamic efficiency
Waste Management/Waste Technology
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Summary:This paper has been aimed for thermochemical gasification of Pongamia residue (mixture of shells and de-oiled cake) generated from the oil expellers and biodiesel production plants. Pongamia mixture pellets (with 11.5 mm diameter and average length in the range of 10–62 mm) were prepared and gasify in an open top downdraft wood gasifier. The temperature in various zones of the gasifier was measured by using S-type thermocouples. The calorific value of producer gas generated from pellets was in the range of 4.56–5.39 MJ/Nm 3 . The gasifier conversion efficiency was 94 % for pellets which is higher to that of wood gasification (74 %). Producer gas generated with these pellets was used in the spark ignition engine. The performance and emission characteristics of the engine were evaluated by varying load and spark timings. The engine brake thermal efficiency was 26 % at spark ignition timing 30° before top dead centre (bTDC) at full load condition. However, the de-rating of 4.5 % was observed when working with 100 % producer gas at compression ratio of 10. Emission parameters were on lower side at spark timing 30 o bTDC. The producer gas generated from the Pongamia mixture pellets could be used for heat and or power generation for rural areas.
ISSN:1877-2641
1877-265X
DOI:10.1007/s12649-016-9631-0