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A superheated vapor is a gas that is heated beyond its boiling point at a given pressure, resulting in a temperature increase without an increase in pressure or a phase change to liquid. This condition occurs when a vapor is heated in a closed system or when additional heat is added after it has already vaporized. Superheated vapors have important applications in thermodynamics and engineering, particularly in steam turbines and heat exchangers.
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What is sub cooled vapor?
Subcooled vapor refers to a vapor that is at a temperature lower than its saturation temperature at a given pressure. In other words, it is a vapor that is in a superheated state but exists at a temperature below its boiling point at the current pressure. Subcooled vapor is not in equilibrium with its liquid state and is considered to be in a superheated state.
Is the discharge gas from the compressor a high pressure high temperature superheated vapor?
Yes, the discharge gas from a compressor is typically a high-pressure, high-temperature superheated vapor. As the compressor increases the pressure of the refrigerant or gas, it also raises its temperature, resulting in superheating if the gas is compressed beyond its saturation point. This superheated vapor is then directed to the condenser in refrigeration and air conditioning systems.
What happens to a saturated vapor when heat is added?
When heat is added to a saturated vapor, its temperature will increase and the vapor will start to undergo phase change into a superheated vapor. This means that the vapor will contain more thermal energy than at saturation conditions, which leads to a rise in temperature without a change in pressure.
Properties of superheated vapor R134a?
for English units, see this table http://energy.sdsu.edu/testcenter/testhome/Test/solve/basics/tables/tablesPC/superR134a-Eng.html (click on SI once there for SI units if needed). If you need higher pressure than 400psia or 16MPa, you will need the R143a superheated vapor chart, which I can't find online. You can find tables and charts in various thermodynamics textbooks. For example, Tables in "fundamentals of engineering thermodynamics" by Moran and Shapiro; or the chart by "SUVA/DuPont" is in the appendix of the "mechanical engineering reference manual" by Lindeburg.
What is difference between saturated vapor and superheated vapor?
A metal clad heating element 8 mm in diameter and emissivity ɛ = 0.95 is horizontally submerged in a water bath. The surface temperature of the metal is maintained at 250°C under steady state conditions. Estimate the power dissipation per unit length of the heater. Assume the water is exposed to atmospheric pressure and is at a uniform temperature.
What is Definition of superheated vapor?
superheated vapor is a vapor that has been heated above its boiling point.
What is the only location where the refrigerant vapor is superheated?
The only location where the refrigerant vapor is superheated is in the evaporator section of a refrigeration or air conditioning system, specifically after it has absorbed heat from the space being cooled. In this section, the refrigerant transitions from a liquid to a vapor state, and if it continues to absorb heat beyond the phase change, it becomes superheated. This superheated vapor then moves to the compressor, where it is compressed to a higher pressure.
Why is the superheated vapor from the condenser is higher than the superheated vapor going into the compressor?
becaause it was just compressed by the compressor and is the high side of the system before the tex valve
What is sub cooled vapor?
Subcooled vapor refers to a vapor that is at a temperature lower than its saturation temperature at a given pressure. In other words, it is a vapor that is in a superheated state but exists at a temperature below its boiling point at the current pressure. Subcooled vapor is not in equilibrium with its liquid state and is considered to be in a superheated state.
What is the refrigerant entering the metering or expansion device of a refrigeration system?
superheated vapor
Is the discharge gas from the compressor a high pressure high temperature superheated vapor?
Yes, the discharge gas from a compressor is typically a high-pressure, high-temperature superheated vapor. As the compressor increases the pressure of the refrigerant or gas, it also raises its temperature, resulting in superheating if the gas is compressed beyond its saturation point. This superheated vapor is then directed to the condenser in refrigeration and air conditioning systems.
What is a direct expansion evaporator?
Refrigerant enters a direct expansion evaporator as a saturated liquid vapor mix and leaves as a superheated vapor.
What are the kinds of water vapor?
there are two types of water vapor it is a evaporation and condensation
Where in the world is the highest percentage of water vapor?
In the natural environment, probably in geysers which, because of their pressure, contain superheated steam.
What happens to a refrigerant when it is above the saturation temperature?
When a refrigerant is above its saturation temperature, it is in the superheated state. This means that it has taken on additional heat energy beyond what is needed for boiling at its current pressure. In this state, the refrigerant is a gas and can continue to absorb more heat without converting to a liquid.
What happens to a saturated vapor when heat is added?
When heat is added to a saturated vapor, its temperature will increase and the vapor will start to undergo phase change into a superheated vapor. This means that the vapor will contain more thermal energy than at saturation conditions, which leads to a rise in temperature without a change in pressure.
Properties of superheated vapor R134a?
for English units, see this table http://energy.sdsu.edu/testcenter/testhome/Test/solve/basics/tables/tablesPC/superR134a-Eng.html (click on SI once there for SI units if needed). If you need higher pressure than 400psia or 16MPa, you will need the R143a superheated vapor chart, which I can't find online. You can find tables and charts in various thermodynamics textbooks. For example, Tables in "fundamentals of engineering thermodynamics" by Moran and Shapiro; or the chart by "SUVA/DuPont" is in the appendix of the "mechanical engineering reference manual" by Lindeburg.
