Tuesday, August 19, 2014

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Thermodynamics Property Tables For Steam (Steam Table) | Nurul Iman Supardi, seashell napkin rings ST. MP - Mechanical Engineering UNIB
The relationship between the thermodynamic properties sometimes too complicated to be expressed in terms of equations manually counted. Therefore, in the past, people use tables to present the relationships between these properties. This table is known as Steam Table.
Properties are presented in the table using the following seashell napkin rings symbols T = temperature = temperature of saturated TSAT (Saturation Temperature) P = Pressure = Pressure Saturated PSAT (Saturation Pressure) vf = Specific volume of saturated liquid (saturated liquid) vg = Specific Volume of saturated steam (saturated vapor) vfg = difference with vf vg (where vfg = vg - vf) uf = Internal Energy of saturated liquid (saturated liquid) ug = internal energy of saturated steam (saturated vapor) UFG ug = difference with uf ( where UFG = ug - uf) hf = enthalpy of saturated liquid (saturated liquid) hg = enthalpy of saturated steam (saturated vapor) hfg = hg difference with hf (hfg = hg - hf), this property is also called enthalpy evaporation (Evaporation enthalpy) or latent seashell napkin rings heat also sf = Entropy of saturated liquid (saturated liquid) sg = Entropy of saturated steam (saturated vapor) sfg = sg difference with sf (where sfg = sg - sf)
Table property is usually presented in two parts namely: Order by vapor temperature (T) is known, the value of Pressure Saturated (P sat) and other properties Order by Vapor Pressure (P) is known, the value of saturation temperature (T sat) and Other properties
In the table contained in reference books, in general, the data compiled by the incremental fixed, seashell napkin rings for example, when sorted by temperature, the data presented are data with incremental level 5. In the table you can find the data for a temperature of 5 or 10 or 15 C, but you can not find the data for example 7 C temperature. To search for properties of steam at a temperature of 7 C you have to interpolate the property data based on the data at 5 C and 10 C.
If you want to impractical in finding the values of the properties of various substances such as pure water, you can use the tools from NIST (National Institute of Standards seashell napkin rings and Technology) at the following links:
During the evaporation process, the substance seashell napkin rings will be in two phases namely the liquid phase and vapor phase. To analyze the nature of this mixture, we need to know the proportion of the vapor phase and liquid phase her. For that defined a property that only applies to the quality of the vapor phase mixture in a liquid-vapor mixture is saturated.
Category: Thermodynamics Tags: water, saturated liquid, internal energy, seashell napkin rings enthalpy, entropy, humidity, vapor quality, moisture, quality, the specific volume, Steam Table, temperature, saturation temperature, saturation temperature, saturated steam tables, pressure, saturation pressure, pressure saturation, Thermodynamics, Thermodynamics, Thermodynamics, steam, saturated steam
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