Fitting Pressure Loss. Use this to find the equivalent feet of pipe to add to the pressure loss equation or calculator to estimate pressure losses in plastic IPS or copper type fittings. Learn more about the units used on this page.
Dec 18, 2015 · What is considerd work in this regard, and why would an expanding gas only drop in temperature when doing work? Some say they have tested making a small hole at the end of a high-pressure pnuematic pipe (10 bar) and letting air escape. This supposedly doesn't lead to a temperature drop.
The second step is to calculate the cost of steam at lower pressure levels. This is not easy, as the cost depends upon the path that the steam follows from the point of generation to the point of use. Low-pressure steam that is produced through a pressure letdown station, usually a pressure-reducing
ρ ρ ⎛⎞ ⎛⎞⎛⎞⋅ ⋅∆ + − + ⋅ =−⎜⎟ ⎜⎟⎜⎟ ⎝⎠ ⎝⎠⎝⎠⋅ (1-25) To calculate Zav Kay’s rule is used. This rule states that the reduced pressure and temperature of the gas is obtained using the average pressure and temperature (as above calculated) and a pseudo critical pressure and temperature.
Turbine Steam-Consumption Calculator This program is completely free - simply download it and use it. It will calculate the steam consumption for a turbine of known power and efficiency. The required input data are the inlet steam pressure and temperature, and the exhaust pressure.
Rather than answer the question numerically I have outlined the four different cases, reversible / irreversible and isothermal / adiabatic. In adiabatic changes no energy is transferred to the system, that is the heat absorbed or released to the surroundings is zero.
For pressure vessels, service temperature is considered part of the vessel design conditions, and the maximum temperature is used to select allowable stress limits for the chosen vessel material. Design temperature is recorded on the pressure vessel’s data report and nameplate (Section VIII, UG-119).
Nov 30, 2015 · Air is flowing at 187 CFM and 5 PSIG pressure. It needs to be heated from an inlet temperature of 90°F to an outlet temperature of 250°F. First, convert the flow rate to SCFM using the formula given earlier. 187 x (20/15) x [540/ (90°F+460)] = 243.7 SCFM