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  2. Superheated steam - Wikipedia

    en.wikipedia.org/wiki/Superheated_steam

    Superheated steam was widely used in main line steam locomotives. Saturated steam has three main disadvantages in a steam engine: it contains small droplets of water which have to be periodically drained from the cylinders; being precisely at the boiling point of water for the boiler pressure in use, it inevitably condenses to some extent in the steam pipes and cylinders outside the boiler ...

  3. Superheating - Wikipedia

    en.wikipedia.org/wiki/Superheating

    For the bubble to expand, the temperature must be raised slightly above the boiling point to generate enough vapor pressure to overcome both surface tension and ambient pressure. What makes superheating so explosive is that a larger bubble is easier to inflate than a small one; just as when blowing up a balloon, the hardest part is getting started.

  4. Superheated water - Wikipedia

    en.wikipedia.org/wiki/Superheated_water

    Superheated water is liquid water under pressure at temperatures between the usual boiling point, 100 °C (212 °F) and the critical temperature, 374 °C (705 °F). [ citation needed ] It is also known as "subcritical water" or "pressurized hot water".

  5. Enthalpy–entropy chart - Wikipedia

    en.wikipedia.org/wiki/Enthalpy–entropy_chart

    A typical chart covers a pressure range of 0.01–1000 bar, and temperatures up to 800 degrees Celsius. [3] It shows enthalpy H {\displaystyle H} in terms of internal energy U {\displaystyle U} , pressure p {\displaystyle p} and volume V {\displaystyle V} using the relationship H = U + p V {\displaystyle H=U+pV\,\!} (or, in terms of specific ...

  6. Superheater - Wikipedia

    en.wikipedia.org/wiki/Superheater

    A superheater is a device used to convert saturated steam or wet steam into superheated steam or dry steam. Superheated steam is used in steam turbines for electricity generation, in some steam engines, and in processes such as steam reforming. There are three types of superheaters: radiant, convection, and separately fired.

  7. Conversion of scales of temperature - Wikipedia

    en.wikipedia.org/wiki/Conversion_of_scales_of...

    To convert a delta temperature from degrees Fahrenheit to degrees Celsius, the formula is {ΔT} °F = ⁠ 9 / 5 ⁠ {ΔT} °C. To convert a delta temperature from degrees Celsius to kelvin, it is 1:1 ({ΔT} °C = {ΔT} K).

  8. Chvorinov's rule - Wikipedia

    en.wikipedia.org/wiki/Chvorinov's_rule

    T m = melting or freezing temperature of the liquid (in kelvins), T 0 = initial temperature of the mold (in kelvins), ΔT s = T pour − T m = superheat (in kelvins), L = latent heat of fusion (in [J·kg −1]), k = thermal conductivity of the mold (in [W·m −1 ·K −1)]), ρ = density of the mold (in [kg·m −3]), c = specific heat of the ...

  9. Calorimeter constant - Wikipedia

    en.wikipedia.org/wiki/Calorimeter_constant

    [1] [2] It may be calculated by applying a known amount of heat to the calorimeter and measuring the calorimeter's corresponding change in temperature. In SI units, the calorimeter constant is then calculated by dividing the change in enthalpy (ΔH) in joules by the change in temperature (ΔT) in kelvins or degrees Celsius: