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Tajudin Abbas, Tajudin
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Agriculture, Biological Sciences & Forestry Computer Science & IT Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering

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The performance test of plucking machine type 120 at plucking of assamica tea Abbas, Tajudin
Jurnal Penelitian Teh dan Kina Vol 16, No 2 (2013)
Publisher : Research Institute for Tea and Cinchona

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (417.531 KB) | DOI: 10.22302/pptk.jur.jptk.v16i2.90

Abstract

The rate of increase tea cost production in several tea fields could not be offered by the rate of increase selling price. The fact that the cost of plucking machine is lower than manual plucking has attracted the interest and attention of tea smallholder to change from manual plucking to plucking machine. The plucking machine which were imported from japan was not designed for assamica tea in Indonesia. In order to improving performance of plucking machine, the plucking machine need to be designed with support from the field and  appropriate machine. The aim of this trial was to test the performance of the plucking machine type-120 at plucking of assamica tea with 120 cm of spacing between rows. The plucking type used was medium plucking and kept the Kepel leaves (k +0) in the middle of the bushes using plucking method supported by the garden and the appropriate plucking machine type-120. Results obtained from the test were: (1) The using of plucking machine type-120 with medium plucking, kept the Kepel leaves (k +0), and controlled plucking height did not cause a decrease in plant health, production as well as quality of the shoots. (2) Field work capacity of plucking machine was 1.19 ha/day with work efficiency of 58.2%. (3) The ratio of plucking machine was 0.30/ha with fuel ratio of 0.33 litres/ha. The performance output of the plucking machine could be reached 224 kg/plucker as compared to only 24 kg/plucker when done manually.
The performance of fire wood stove for heat exchanger tubeless type in the fluidized bed dryer of orthodox black tea Abbas, Tajudin
Jurnal Penelitian Teh dan Kina Vol 16, No 2 (2013)
Publisher : Research Institute for Tea and Cinchona

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (442.176 KB) | DOI: 10.22302/pptk.jur.jptk.v16i2.91

Abstract

The biomass potential of tea plantations such as tea pruning waste, shade tree waste and waste of tea replanting are large enough. Energy derived from biomass is a renewable energy source that environmentally friendly, and it does not cause a negative impact to the environment. Heat exchanger tubeless type can only use fossil fuel. To replace the fuel derived from biomass on the tubeless type of heat exchanger, the furnace must be designed specifically as a substitute for fuel oil burner. This paper provides the result of engineering design of tubeless type heat exchanger of and their performance in a fluidized bed dryer of orthodox black tea. Apart from that, the design suitable also for the green tea drying machines. As a substitute for fuel oil burner, the heat exchanger tubeless type can use waste of tea replanting. The ratio of fire wood was 0.90 kg per kilogram of made tea with 57.9% of the energy efficiency and 46.3% of drying energy efficiency.
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