Compression and relaxation properties of timothy hay

Authors

  • S. Talebi B.Sc.Eng., E.I.T. Project Manager, Atmospheric Environments, Stantec, 2781 Lancaster Road Suite 200, Ottawa ON K1B 1A7 Canada. Research and Work Interests: Physical properties of biological materials, climate change and air quality assessments, Greenhouse Gas (GHG) Verifications, potable water assessments, water audits, wastewater sewer sampling and groundwater monitoring. Phone: 16137386067; Fax: 16137380721;
  • L. Tabil Department of Chemical and Biological Engineering,UniversityofSaskatchewan
  • A. Opoku M.Sc., Research Associate, Department of Chemical and Biological Engineering, 57 Campus Drive, College of Engineering, University of Saskatchewan, Saskatoon SK S7N 5A9 Canada. Research Interests: Pelleting of feeds and forage and optimizing the process involved in feed and forage processing; physical properties of agricultural materials and postharvest technology of agricultural crops; bioprocess engineering; value-added engineering and postharvest handling of crops. Phone: 13069665317; Fax: 13069665334;
  • M. Shaw M.Sc., P.Eng., Engineering Department Leader, Crestline Coach Ltd., 802 - 57th Street East, Saskatoon, SK S7K 5Z1 Canada. Research Interests: Biomass pretreatment and densification. Phone: 13069340154 x 720; Fax: 13062425838;

Keywords:

densification, compaction, moisture content, visco-elastic properties, density, asymptotic modulus, disinfestations, Canada

Abstract

Abstract: The compression and relaxation characteristics of timothy hay were investigated with respect to hay moisture content, applied load, and hay quality. Experimental trials were performed by using a Baldwin hydraulic universal testing machine model 60 HVL-1254. The applied loads ranged from 90 kN to 240 kN, in 30 kN increments. Two qualities of timothy hay were used, high quality with moisture contents of 7.44%, 10.17%, 12.97%, and 16.42% wet basis (w.b.), and low quality with moisture contents of 6.38%, 8.67%, 16.24%, and 18.94% w.b. The results indicated that the compact density of hay samples increased with increasing moisture content and applied pressure. Less maximum applied pressure was required to achieve the same compact density with increasing moisture content. Models were fitted to the applied pressure-compact density data. ?Relationships were developed between the model constants and the experimental variables. The use of Faborode-O

Author Biographies

S. Talebi, B.Sc.Eng., E.I.T. Project Manager, Atmospheric Environments, Stantec, 2781 Lancaster Road Suite 200, Ottawa ON K1B 1A7 Canada. Research and Work Interests: Physical properties of biological materials, climate change and air quality assessments, Greenhouse Gas (GHG) Verifications, potable water assessments, water audits, wastewater sewer sampling and groundwater monitoring. Phone: 16137386067; Fax: 16137380721;

L. Tabil, Department of Chemical and Biological Engineering,UniversityofSaskatchewan

Dr. Tabil started at the Department of Agricultural and Bioresource Engineering of the University of Saskatchewan in August 2000. Prior to this position, Dr. Tabil was a Research Engineer with the then Agricultural Value-added Engineering Centre (AVEC) of Alberta Agriculture, Food and Rural Development from October 1997 to July 2000. Prior to joining AVEC, he worked as a Research Associate for over a year at the Department of Agricultural and Bioresource Engineering of the University of Saskatchewan. He worked on an NSERC-funded project on "Alfalfa Cube Quality Characterization". He was also involved in a project evaluating binders in compressed forages. Dr. Tabil's Ph.D. research was on the "Pelleting and Binding Characteristics of Alfalfa". He has expertise in pelleting of feeds and forage and optimizing the process involved in feed and forage processing, physical properties of agricultural materials and postharvest technology of agricultural crops.

The areas of research in which he works and maintains interest include bioprocess engineering, value-added engineering and postharvest handling of crops. He has also conducted applied research and development projects related to value-added processing of agricultural products including storage, drying and cooling, and physical properties of agricultural and biological materials. For the past few years, he has been working in projects dealing with the utilization of flax straw as fibre reinforcement for biocomposites. He is presently working on bioplastic development from pulse starch, postharvest treatment for red lentil milling, and conversion of lignocellulosic waste into bioproducts, and many others. Dr. Tabil continues to work and have interest in projects such as agricultural waste and processing byproduct utilization and the processing of agricultural materials into industrial products.

A. Opoku, M.Sc., Research Associate, Department of Chemical and Biological Engineering, 57 Campus Drive, College of Engineering, University of Saskatchewan, Saskatoon SK S7N 5A9 Canada. Research Interests: Pelleting of feeds and forage and optimizing the process involved in feed and forage processing; physical properties of agricultural materials and postharvest technology of agricultural crops; bioprocess engineering; value-added engineering and postharvest handling of crops. Phone: 13069665317; Fax: 13069665334;

M. Shaw, M.Sc., P.Eng., Engineering Department Leader, Crestline Coach Ltd., 802 - 57th Street East, Saskatoon, SK S7K 5Z1 Canada. Research Interests: Biomass pretreatment and densification. Phone: 13069340154 x 720; Fax: 13062425838;

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How to Cite

Talebi, S., Tabil, L., Opoku, A., & Shaw, M. (2011). Compression and relaxation properties of timothy hay. International Journal of Agricultural and Biological Engineering, 4(3), 69–78. Retrieved from https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/474

Issue

Vol. 4 No. 3 (2011): IJABE

Section

Renewable Energy and Material Systems

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