Document Type : Research Article


Department of Research and Development, Hydraulic Equipment Development Institute, Kano-Nigeria


The effect of storage time on some properties of groundnut shell briquette with 5, 10, 15 and 20% binder (cassava gel) was studied. The briquettes were prepared using a motorized briquetting machine. The moisture content, durability rating, water penetration, calorific value and the ash content were determined after every 30 days for 6 months. The results reveals that the moisture content of briquettes decreases during storage during the hot season, the result also reveals a decrease in the durability rating. However, there is an increase in the water penetration with storage time. There is also an increase in the ash content with storage, and this is believed to be responsible for the decrease in the calorific value of the briquettes with storage. However, briquettes with 15 and 20% binder remained relatively stable after 6 months of storage.


1.     FAO, Regional wood energy development programme in asia (RWEDP) Report No. 39, 1997, available at http:// /energy/ HC270799/ RWEDP/ acrobat/ rm39.pdf.
2.     Pallavi, H. V., Srikantaswamy, S., Kiran, B. M., Vyshnavi, D.R. and Ashwin, C. A., "Briquetting Agricultural Waste as an Energy Source", Journal of Environmental Science, Computer Science and Engineering & Technology,  Vol. 2, No. 1, (2013), 160 – 172.
3.     Gilbert, P., Ryu, C., Sharif, V., and Switchenbank, J., "Effect of processing parameters on pelletisation of herbaceous crops" Fuel 88: (2009), 1491-1497.
4.     Joseph, S., and Histop, D., "Residue briquetting in developing countries", Energy from Biomass, 3.Elsevier, London, (1999), 1064-1068.
5.     Wilaipon, P., "The Effects of Briquetting Pressure on Banana Peel Briquette and the Banana Waste in Northern Thailand", American Journal of Applied Sciences, Vol. 6, No. 1, (2008), 167-171.
6.     Grover, P.D., and Mishra, S.K., "Biomass Briquetting, Technology and Practices", Regional Wood Energy Development Programme in Asia. (1996), FAO: Bangkok, Thailand.
7.     Janczak, J., "Compendium of simple technologies for agglomerating and/or densifying wood, crop and animal residues", (1980). FAO: Report, Forestry Department, Rome.
8.     Rabier, F., Temmerman, M., Bohm, T., Hartmann, H., Jensen, P. D., Rathbauer, J., Carrasco, J., and Fernandez, M., "Particle density determination of pellets and briquettes", Biomass and Bioenergy, Vol. 30, (2006), 954-963.
9.     Al-Widyan, M.I., Al-Jilal H.F., Abu-Zreig M.M. and Abu-Hamdeh N.H., "Physical durability and stability of olive cake briquettes", Canadian Biosystems Engineering, Vol. 44, No. 3, (2002), 41 - 45.
10.   Sengar, S. H., Mohod, A.G., Khandetod, Y.P., Patil S.S. and Chendake A.D., "Performance of Briquetting Machine for Briquette Fuel", International Journal of Energy Engineering, Vol. 2, No. 1, (2012), 28-34.
11.   Oyelaran, O.A, "Development of Motorized Biomass Fuel Briquetting Machine", Unpublished Ph.D Thesis, (2014), Abeokuta – Nigeria.
12.   Wakchaure, G.C. and Mani, I., "Thermal and Storage Characteristics of Biomass Briquettes with Organic Binders", Journal of Agricultural Engineering, Vol. 48, No. 4, (2011), 43 – 53.
13.   Adapa, P., Tabil, L. and Schoenau, G., "Compaction characteristics of barley, canola, oat and wheat straw", Biosystem Engineering, (2009), 1-10.
14.   Lois, J., "Storage of Bagasse for Derivatives Industries, Monograph, Editorial Científico-Técnica", (1982), 13-27. Havana, Cuba (in spanish).
15.   Schmidt, O. and Walter, K., "Sucession and Activity of Microorganisms in Stored Bagasse", European Journal of Applied Microbiology and Biotechnology, Springer-Verlag, (1978), 69-77.
16.   Pathak, B. S. and Jain, A. K., Energy In Agriculture, Final Report. School of Energy Studies For Agriculture, Punjab Agricultural University, Ludhiana, (1985).