Assuming the point C (P = 1 bar, T = 99.61 C, the condensed fraction = 4.03%) as the initial stat

The adiabatic The vapor pressure of water transformation isobaric adiabatic expansion of the vapor in the Mollier diagram the isothermal transformation at constant volume of water vapor density: The density of lateral considerations Transformations isochoric and isobaric transformation: considerations portable car heater reviews on trade The energy of Manson free piston engine - Episode 07
While the expansion portable car heater reviews isoenthalpic ideal gas is not particularly difficult in the case of steam the problem is even more complicated. As for the study of 'adiabatic expansion, also in this case is extremely useful HS the Mollier diagram (enthalpy-entropy diagram). In the plane HS isoenthalpic expansion is represented with a horizontal rectilinear line in which the initial state is positioned on the left, while the final one is to the right. In this post will be considered as two extreme situations: the isoenthalpic expansion of superheated steam and the expansion isoenthalpic saturated vapor condensed in the presence of fraction portable car heater reviews (title portable car heater reviews of steam of less than 1). Superheated steam The following image is a Mollier diagram with the sun transformations of interest.
In the diagram, there are three isobars P = 10bar (fuchsia and light blue), P = 1 bar (dark blue) and P = 0,1bar (purple). portable car heater reviews The red curve represents the state of dry saturated steam (no fraction portable car heater reviews condensed steam quality equal to 1). The points above this line represent states of superheated steam, the points below represent states portable car heater reviews in which saturated steam is present but also the liquid phase (under the steam of less than 1). The blue curve represents the state of saturated liquid (the absence of vapor phase, the title of steam equal to 0). In the section between the curve of the saturated liquid (blue color) and the curve of the dry saturated steam (red color) coexist the liquid phase and the vapor phase and therefore the three isobars are also isothermal at T = 179.88 C (P = 10bar), T = 99.61 C (P = 1 bar) and T = 45.806 C (P = 0,1bar). In the zone of superheated steam (the area above the red line), the isobar is no longer an isotherm and this aspect is shown by the isotherm at 179.88 C (dark green color) that starts portable car heater reviews from the state of dry saturated steam at 10bar and continues to the right asymptotic portable car heater reviews behavior with horizontal asymptote ie asymptotic portable car heater reviews behavior of type isoentalpico. Assuming portable car heater reviews the point A (P = 1 bar, T = 179.88 C) as the initial state for a transformation isoenthalpic, with the progress of the expansion will move horizontally to the right. Assuming you want to reduce the pressure portable car heater reviews to 0,1bar you need to move forward until it intersects the purple line (isobar P = 0,1bar). The trait that represents the transformation isoenthalpic is then a straight segment horizontal. In the graph is exactly superimposed on the Green Line (isothermal at T = 179.88 C), but in reality they are not perfect. In fact, the tables on the hand, is that the transformation isoenthalpic ends at the pressure of 0,1bar with a temperature of 177.38 C 179.88 C against initial. The temperature difference is however extremely low (2.5 C). By way of comparison, if the temperature of the initial state had been 250 C, then a state more superheated, always consulting tables identifies a final temperature of 248.5 C (the temperature drop goes from 2.5 C to 1.5 C). Therefore, the increase of the heating, steam tends to behave more like an ideal gas. STEAM IN THE PRESENCE OF CONDENSED FRACTION The image below shows a Mollier diagram with just the changes of interest.
Assuming the point C (P = 1 bar, T = 99.61 C, the condensed fraction = 4.03%) as the initial state for a transformation isoenthalpic, with the progress of the expansion will move horizontally. Assuming you want to bring the pressure to 0,1bar is necessary to proceed horizontally to the right until it intersects the purple line (isobar P = 0,1bar). In this transformation the intersection occurs at the point D (P = 0,1bar, T = 45.806 C, condensed fraction = 0%). In the particular case shown in the figure the intersection occurs at the point that represents the state of dry saturated steam at 0,1bar. Isoenthalpic expansion portable car heater reviews is observed, therefore, a significant decrease in the fraction of condensed (and the title of the steam increases accordingly), that is accompanied by a steaming process. Furthermore, the lowering of the temperature associated with this transformation is of 53.804 C (= 99.61 C-45.806 portable car heater reviews C) and then cooling is much greater than that found in the expansion isoenthalpic of superheated steam. As expected, when the temperature behavior portable car heater reviews of the vapor diverges more and more know