This paper first outlines the benefits of Medium Voltage Variable Frequency Drives (MV-VFD) compared to classical drivers or control methods (i.e. steam/gas turbines, hydraulic coupling and Direct-On-Line operation with, for example, valve/damper control). The paper then focuses on typical variable frequency drive applications in the sugar industry and also describes two real cases, namely a MV...

Steamconditioning (desuperheating) is an essential and critical part of sugar production, particularly with reference to the processing of expressed juice where criticalsteamtemperatures are most necessary to ensurefinal quality. Desuperheating is a simpleprocess that is not widely understood in principle and is much abusedin its practical application and operation. The purposeof this paper is ...

The US Sugar Association wants Congress to reconsider its funding of the World Health Organization after a WHO report recommended that “added sugar” be limited to 10% of a person’s caloric intake. The association says the report, from WHO and the UN’s Food and Agriculture Organization, is “scientifically flawed” because other research indicates that up to 25% of daily calories can be provided s...

In sugar production, dextrans are undesirable compounds synthesized by contaminant microorganisms from sucrose, increasing the viscosity of the flow and reducing industrial recovery, bringing about significant losses. The use of the dextranase enzyme is the most efficient method for hydrolyzing the dextrans at sugar mills. Some bacterial strains, filamentous fungi and a small number of yeasts h...

Steam injection for power and efficiency augmentation in aeroderivative gas turbines has been commercially established for natural gas-fired cogeneration since 1980. Steam-injected gas turbines fired with coal and biomass are being developed. A performance and economic assessment of biomass integratedgasifier steam-injected gas turbine (BIGISTIG) cogeneration systems is carried out here. A deta...

In the era of knowledge economy, patents which were a legal protection means of technology have been transformed into main resource for enterprises to make profits. Based on patent documents analysis and cases analysis, this paper introduced some concepts of enterprises patent strategies and then, combining with development situation of Guangxi sugar industry, explored how to promote improvemen...

The South African sugar industry can be regarded as mainly a diffusion industry with 76% of all cane now handled by diffusers. With the conversion from milling to diffusion, concerns were expressed that higher temperatures, imbibition levels and improved extraction in itselfwould result in various processing difficulties. Among these were expected clarification problems associated with the extr...

The FCB pan was designed for European beet sugar factories and was first introduced to the South African Sugar industry at Maidstone mill in 1976 and was the first continuous pan in the industry. A 90 m' FCB 'C' pan was installedat Sezela in 1981, and the SRI pan wassubsequently installed in 1984 and was, and still is the only Australian designed continuouspan in South Africa. A brief set of de...

This paper provides a review of geographic information system (GIS) technology and its potential use in the SA sugar industry. A brief history of the SASEX GIS is given, as is a description of the software used. Examples of some current GIS research applications at SASEX, such as soil erosion work, yield potential mapping and cane burning investigations are discussed, and mention is made of som...