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Gas Pressure-Drop Experiment

Luyben, William L ; Tuzla, Kemal

Chemical engineering education, 2010, Vol.44(3), p.183 [Periódico revisado por pares]

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  • Título:
    Gas Pressure-Drop Experiment
  • Autor: Luyben, William L ; Tuzla, Kemal
  • Assuntos: Chemistry ; Measurement Equipment ; Science Laboratories ; Scientific Concepts ; Chemical Engineering ; College Science ; Undergraduate Study ; Science Experiments ; Scientific Principles ; Mechanics (Physics) ; Engineering ; Chemistry
  • É parte de: Chemical engineering education, 2010, Vol.44(3), p.183
  • Descrição: Most chemical engineering undergraduate laboratories have fluid mechanics experiments in which pressure drops through pipes are measured over a range of Reynolds numbers. The standard fluid is liquid water, which is essentially incompressible. Since density is constant, pressure drop does not depend on the pressure in the pipe. In addition, flow measurements using rotameters are independent of the pressure in the liquid system. However, if the fluid is gas, pressure drops and flow measurements do depend on the density of the gas, which is a function of pressure, molecular weight, and temperature. For the same mass flowrate, pressure drop increases as density decreases. Lower gas density results if pressure or molecular weight is lower or if temperature is higher. The importance of this effect is vital to the education of chemical engineers since we deal extensively with gas streams flowing through pipes. Another important concept is adjusting readings of flow meters in gas service...
  • Idioma: Inglês

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