Recent content by DrewGerhan

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    Relationship Between Surface and Core Temperature of Steel

    Anyone able to shed some light on this for me?
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    Relationship Between Surface and Core Temperature of Steel

    Well we've decided to take another approach to this project. My task now is to drill to holes into a scrap piece of stock to put thermocouples in and directly measure the temperature to get a cooling curve. My question now is, how do I account for thermal expansion when I drill these holes...
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    Automotive Homemade Diesel-Electric Hybrid

    As far as chemistry goes, I'm really open to anything. I feel a standard deep cycle would be cheapest/easiest but not necessarily the best choice. As far as life cycle, obviously long is better. What is the useful life of some options?
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    Automotive Homemade Diesel-Electric Hybrid

    First, I'm not looking for an exact number here or anything like that. More just bouncing ideas around and talking out loud. Say you have a mid 90s Ford Ranger with a manual transmission. You remove the original motor and get some type of small diesel engine (Kubota, VW, Mercedes, 4BT...
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    Relationship Between Surface and Core Temperature of Steel

    Astronuc, I think I have gotten to that point. I have attached my work up to this point in the pdf. If my calculations are correct, the core of a 20" diameter piece would be around 1200F after 13 hours if it started at a uniform 2300F. The original temperature of the part would either be...
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    Relationship Between Surface and Core Temperature of Steel

    Hey guys, First off, I apologize if this is in the wrong section. I am currently an intern taking 6 months off from my senior year pursuing a mechanical engineering degree. Having not taken a heat transfer class yet, I am stumped as to how to go about tackling my latest project. Basically...
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