Off highways vehicles especially tractors are prone to operate on fields where tractors are exposed to dry crops, chaffs (the husks of corn or other seed separated by winnowing or threshing) and particles which can catch fire easily when it is exposed to surface/skin temperature of more than 200 degree Celsius. It will be a basic projection that tractor will be having vertical exhaust tube at a height but there are certain tractors and applications where exhaust pipe must be below certain height, and which will be close to the ground. In these scenarios the skin temperature of exposed exhaust tail pipe part must be within a limit and that must be within the existing design. Break firing point of chaffs and husk also experimented at different moisture level. Several options are being verified on different heat flow and geometry changes, additional air entry jet nozzle with double pipe arrangement. In first option additional stream of fresh air from atmosphere will be directed to cool the exhaust temperature at an entry point at entry of an exhaust pipe to reduce the skin temperature. The effect of heat transfer interaction between fresh air and exhaust gas stream will be studied. Secondly optimizing the air gap between the two concentric pipes to maintain the exhaust skin temperature as a skin concept and the effect of air gap between the pipe and what gap must be maintained to keep the skin temperature in control. Thirdly a heat resistant packed material in between the inner and outer pipe as third concept. Three options were made and there was an analysis matrix to determine which can better suit the application on all aspects and its inferences will be made as a detailed paper.


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    Title :

    Heat Augmentation Prevention Shield on Tractor Horizontal Exhaust Pipe for Field Fire Safety Compliance


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Conference on Advances in Design, Materials, Manufacturing and Surface Engineering for Mobility ; 2020



    Publication date :

    2020-09-25




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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