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  • Users: JustinME
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  1. JustinME

    Does saponification of beeswax yield glycerin?

    I am making a custom grease (castor oil & sodium stearate) that will be suspended in beeswax. I have found that saponifying some beeswax for use in the grease results in higher operating temperatures after the grease is melted with the wax. I cannot have any glycerin in the final product, so I...
  2. JustinME

    ASME BPVC VIII Div 1 Max Allowable Stress

    I have a copy of the BPVC VIII Div 1, and a Professional Engineering study book. I can use these two to calculate minimum allowable pressure vessel thickness. However, I have not found what the ASME max allowable stress is for a broad range of materials. Searching the internet, I have found a...
  3. JustinME

    How does a telltale hole fail in a pressure vessel?

    I am referring to section UG25(e) of the ASME BPVC Section VIII, where dimensional details of telltale holes are described. I am investigating the value that a telltale hole can provide when integrated into a pressure vessel containing air below 200 psig, temperatures between -40 °F and 120 °F...
  4. JustinME

    Single Phase Induction Motor, Capacitor-Start Capacitor-Run Equivalent Circuit Diagram

    I have created a circuit diagram for a single phase CSCR induction motor, but only for the purpose of calculating start-up current (i.e. motor speed is at, or very near, zero RPM). I have created this diagram because: 1) I do not have the tools & knowledge required to generate the Steinmetz...
  5. JustinME

    Impact Force, Cantelever Beam, Elastic

    Background Informatiom: I have a problem that requires the input of impact force data into an FEA for structural design. I have a machine with two front wheels and one rear caster. The wheels and caster are suspected to have implications on strength requiresments of the machine frame...

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