Recent content by evoke1l1

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    How long to heat a given volume of air?

    Thank you for confirming this. I’m assuming the change in pressure over the 25C change? This would be caluculated by p2 = (p1 * T2) / T1 I believe.
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    How long to heat a given volume of air?

    Homework Statement I am working on a problem where I need to determine the time taken for an air heater with an 8kW output to heat a volume of air of 9m^3 by 25C. I am neglecting all losses at the moment. It almost seems too simple in my mind that I'm concerned I'm overlooking...
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    Calculating Mass Flow Rate of Steam

    Ahh I see! It makes sense to me now. Many thanks.
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    Calculating Mass Flow Rate of Steam

    May I just ask what delta H is, please?
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    Calculating Local Heat Flux in a Pipe: Is h = Nu*(k/x) the Correct Formula?

    Thank you for this. T(x) is already specified in the question with a uniform temperature for the pipe surface so I have the two temperatures to plug in, so in my instance, would the below be correct or have I misunderstood? h = Nu*(k/d) and q = h(T(x)-T2)
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    Calculating Local Heat Flux in a Pipe: Is h = Nu*(k/x) the Correct Formula?

    I am a little unsure how to get started with a homework question. Essentially, I have to calculate the local heat flux at a distance 1.2m (x) along a pipe. I have the fluid's properties and have calculated the Reynolds number, for which I've determined the flow to be turbulent and therefore do...
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    Calculating pump head required

    Homework Statement I need to calculate the pump head required for a fluid transfer system. The pump is located 3m above a storage vessel vented to atmosphere (1 bar) with a total pipe length of 5m to pump suction. The pump discharge is connected to a pressurised vessel at 2 bar absolute with...
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    Dimensional Analysis:Relating Particle Diam, Viscosity, & Weight

    Thank you. That was a big help. I obviously missed taking ∆ρ⋅g as W and got stuck in a rut. The end equation I've now determined to be as per Stokes law. Many thanks.
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    What are the benefits of joining a professional forum in your field?

    Hello, I'm John from the South East of the UK. Electrical and electronic engineer by profession. Glad to join the forum.
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    Dimensional Analysis:Relating Particle Diam, Viscosity, & Weight

    Homework Statement It is found the terminal velocity ut of a spherical particle in a fluid depends upon the diameter d of particle, the dynamic viscosity μ of fluid and the buoyancy weight W of the particle [given by the difference in density between the particle and the fluid (∆ρ) ×...
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