Abstract
Thailand is the sugar cane exporters in the world market. It is important for sugar factory to operate efficiently in milling against its competition. This study was conducted to find the optimization of milling performance of a sugar mill based on extraction (EXT), power requirements (POW), specific energy consumption (SEC), and specific extraction per energy consumption (SEE) that is important parameters for sugar factory. Testing was performed using a small milling machine. The compressed pressure and speed were adjusted from 2.7 to 10.0 x 106 N/m2 and 0.0844 m/s to 0.1631 m/s, respectively. After the test, the polarization meter was used to measure sugar in juice. The results showed that the maximum extraction (%) is earned at the intermediate compressed pressure and the lowest speed. The minimum power requirement (W) is earned at the lowest compressed pressure and the lowest speed. The minimum specific energy consumption (kWh/t) is earned at the lowest compressed pressure and the intermediate speed. The maximum specific extraction per energy consumption (%.t/kWh) is earned at the intermediate compressed pressure and the lowest speed. The method and results of this study can benefit for sugar factory to find performance and to make the decision on process operation.
Highlights
Sugar trade averages 56 million tons/year in the world with Brazil, Thailand and Australia accounting for 65% of the trade in 2014
This paper investigated the optimization of milling performance of a sugar mill based on Extraction (EXT), Power requirements (POW), Specific energy consumption (SEC) and Specific extraction per energy consumption (SEC)
The increase in the compressed pressure tended to increase the extraction of sugar, the power requirement, the specific energy consumption, and the specific extraction per energy consumption while the specific extraction per energy consumption tended to decrease
Summary
Sugar trade averages 56 million tons/year in the world with Brazil, Thailand and Australia accounting for 65% of the trade in 2014. The world’s largest sugar producer and exporter is Brazil, accounting for 24.01 million tons. The second largest, accounts for 7.97 million tons [1]. There are several processes in the sugar cane production such as sugar cane growing, sugar cane milling, credit banking, exportation, etc. The sugar refinery process is part of sugar cane crushing mills. Raw sugar and refined sugar is produced by using sugar cane bagasse from milling as an energy source [3]. There are 55 sugar mills in Thailand with sugar cane crushing capacity about 93 million tons per year [4]
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