jbw5306_prox.pdf - TJA701 Thermogravimetric Proximate...

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1 TJA701 Thermogravimetric Proximate Analyses of Fuel Samples to Determine Composition of Sample and Fuel Effectiveness John Worthley, [email protected] , September 17, 2017 Abstract Five Coal samples and three biofuel samples were analyzed through proximate analyses by a Leco TGA701 Thermogravimetric Analyzer in this study. The dry mineral matter free basis values were calculated after finding moisture, volatile matter, ash, and fixed carbon. Afterwards, fuels that were ranked over 69% were ranked. The three coal samples Coal 1P, 6L, and 5P were ranked as low volatile bituminous, semi-anthracite, and medium volatile bituminous sequentially. Ranking on heating values is required for those fuels unable to meet the 69% fixed carbon on dry mineral matter free basis. To serve as a good fuel source, coal must have a high carbon content and low ash content. The three coals in table 2 could as excellent fuel sources due to these inherent traits. These fuel sources could be used in industry for tasks required high energy density. By performing coal ranking, the right fuel could be discovered for particular jobs. Introduction Predicting how a coal will behave when handled and burned can be determined by the proximate analysis characteristics. Proximate analysis is a measurement highly used in the transportation, chemical analysis, and bulk shipping industries. 2 Proximate Analysis considers four characteristics of a carbon sample. Those characteristics are fixed carbon, moisture, ash content, and volatile matter. A high heating value of the coal is preferred, a characteristics due to high fixed carbon and low impurity values. The determination of the volatile matter contents of a number of coals should be in parallel with the ASTM certified method to normalize lab results and have a fair means of comparing data. 1 Therefore, it is beneficial to the study to follow methods prescribed in the ASTM certified methods guidelines. Proximate analysis is used for life-critical industries such as emergency care, health, construction planning in transportation, medicine, and climate control. Coals with a propensity to combust or lead to undesirable results due to swelling should be avoided. Coals having a higher gross calorific value of 14,000 btu/lb can be ranked by the mineral matter free basis. This basis measures mineral matter in coal, that which originates from original plant materials formed in the coal, or from extraneous sources such as sediments and precipitates in mineralized water. 2 Theory
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