Category: Process Heat Duty

Natural Gas Sensible Heat Duty at Constant Pressure

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The sensible heat duty for natural gas at constant pressure is: Heat capacity is determined at atmospheric conditions and then corrected for temperature and pressure based on reduced pressure and temperature. The gas pseudo critical pressures and temperatures can be approximated from Figure 2-16 or they can be calculated as weighted averages of the critical …

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Latent Heat

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The amount of heat energy absorbed or lost by a substance when changing phases is called “latent heat.” When steam is condensed towater, the temperature doesn’t change, but heat must be extracted from the steam as it goes through a phase change to water. To change water to steam, heat must be added. When a …

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Sensible Heat

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The amount of heat absorbed or lost by a substance that causes a change in the temperature of the substance is sensible heat. It is called sensible heat because it can be measured by the change in temperature it causes. For example, as heat is added to a piece of steel the temperature of that …

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