Results 221 to 230 of about 577 (258)
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Environmental Progress & Sustainable Energy
Abstract This study evaluated the effects of torrefaction temperature on the grindability of Japanese cedar (Sugi) and fibrous biomass particles, while addressing the limitations of the conventional Rittinger's law. The standard Rittinger's law physically failed as the specific surface area difference () became negative at certain ...
Ken‐ichiro Tanoue +4 more
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Abstract This study evaluated the effects of torrefaction temperature on the grindability of Japanese cedar (Sugi) and fibrous biomass particles, while addressing the limitations of the conventional Rittinger's law. The standard Rittinger's law physically failed as the specific surface area difference () became negative at certain ...
Ken‐ichiro Tanoue +4 more
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Improving Grindability of Inconel-600
Journal of the Association of Engineers, India, 2015Conventional fluid delivery system is not much effective to reduce heat generation due to presence of a stiff air layer covering the periphery of grinding wheel. Thermal damages in grinding a super alloy are stringent and problematic. In this paper, a report on the experimental investigation carried out on grinding a nickel based super alloy, Inconnel ...
Bijoy Mandal +4 more
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An assessment of grindability index of coal
Fuel Processing Technology, 2002 Grindability index of coal is an important technological parameter to understand the behaviour and assess the relative hardness of coals of varying ranks and grades during comminution. This is usually determined by Hardgrove Grindability Index (HGI), which involves requirement of a costly grinding equipment and accessories not readily available and ...
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Influence of preheating on grindability of coal
International Journal of Mineral Processing, 1992Abstract Enormous quantities of coal must be ground as feed to power generation facilities. The energy cost of grinding is significant at 5 to 15 kWh/ton. If grindability could be increased by preheating the coal with waste heat, energy costs could be reduced.
J. Lytle, N. Choi, K. Prisbrey
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1981
Grindability as a material characteristic must indicate the suitability for size reduction. Its value has to give the result of the grinding operation as a result of unit energy expenditure. And here we meet a difficulty: the result of the operation is a new particle size distribution which cannot be described by a single value.
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Grindability as a material characteristic must indicate the suitability for size reduction. Its value has to give the result of the grinding operation as a result of unit energy expenditure. And here we meet a difficulty: the result of the operation is a new particle size distribution which cannot be described by a single value.
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Grindability Evaluation of Advanced Ceramics
Materials Science Forum, 2004Evaluation system of grindability was proposed for advanced ceramics. Grinding forces and material removals of SiC, Al2O3, Si3N4 and ZrO2 were measured. Grindabilities of ceramics were evaluated with property parameters based on fuzzy comprehensive evaluation theory.
Ai Bing Yu, L.J. Zhong, Xin Li Tian
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Grindability and Mechanical Property of Ceramics
2008For cost-effective ceramic machining, material-specific machining methodology is needed. This requires characterizing ceramics from machining view point. In this paper, a preliminary study of the correlation between grindability and mechanical properties is reported.
Changsheng Guo, Ronald H. Chand
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Effect of clinker composition on grindability
Cement and Concrete Research, 1979Abstract Four commercial Portland clinker samples with different chemical compositions and grindability indices were examined. It was found that clinker with low percentage of Al2O3 and Fe2O3 is easier to grind. Clinker with higher percentage of liquid phase shows a higher work index, i.e., hard to be ground.
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