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An improved mechanized pepper [Piper nigrum] thresher


Citation

Jusuh, Ahmad and Bong, Choon Fah Joseph and Saad, M. S. (1985) An improved mechanized pepper [Piper nigrum] thresher. In: National Conference on Pepper in Malaysia, 16-17 Dec. 1985, Universiti Pertanian Malaysia, Kuching, Sarawak. .

Abstract

An improved mechanized pepper thresher was designed, at the Universiti Pertanian Malaysia Cawangan Sarawak, to carry out three main functions: to detach berries from the spikes, to separate detached berries from the empty spikes or stalks, and to separate large berries ( 5mm diameter) for white pepper production. Three stages of tests: threshing efficiency, sieving effectiveness, and threshing and sieving combination tests were conducted to obtain the best drum rotating and sieve vibration speeds. The best combination speed was 800 and 320 rpm for drum and sieve respectively. At these rpm, the thresher was capable of threshing 250 kg/hour green berries giving 99.9% threshing efficiency with less than 10% damaged berries, and effective sieving.


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Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Subject: Agricultural machinery
Subject: Black pepper (Plant)- Machinery
Subject: Black pepper (Plant)- Threshing — Machinery
Divisions: Faculty of Agricultural Engineering
Keywords: Black pepper; Pepper thresher; Agriculture
Depositing User: Erni Suraya Abdul Aziz
Date Deposited: 18 Dec 2013 03:38
Last Modified: 13 May 2015 07:52
URI: http://psasir.upm.edu.my/id/eprint/19905
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