Where can I find the specific volume of steam at 179.91 deg Celsius?

In summary, the conversation involved finding the total volume of a closed tank using given values for steam and water. The total volume was calculated to be 0.1949 m^3 and it remains the same after the heat addition process. The pressure state where steam has a specific volume of 0.1949 m^3/kg is roughly 10 b at a temperature of 179.91 deg Celsius.
  • #1
robm
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Please see attachment below. Thanks
 

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  • #2
Hi,

Here's a quick fix:

At 7b,
v_f = 0.001108 m^3/kg
v_g = 0.2729 m^3/kg

Since the masses of steam and water are given, we can find the total volume of the closed tank to be

V_total = (0.287 * 0.001108) + (0.713 * 0.2729) m^3

= 0.1949 m^3

We know that the volume remains the same after the heat addition process. And things get simplified, when all that's left is steam. You'll just have to look into the pressure states where steam has the specific volume of

v_g = V_total / total mass = 0.1949 / (0.287 + 0.713) = 0.1949 m^3 / kg

which is roughly 10 b, at 179.91 deg Celsius.


Hope this helps. ;)
 
Last edited:
  • #3
for your help!

The specific volume of steam at a specific temperature can be found by using steam tables. These tables provide the specific volume of steam at various temperatures and pressures. They can be found in many engineering and thermodynamics textbooks, or can be easily accessed through online resources. In order to find the specific volume at 179.91 deg Celsius, you would need to look for the corresponding value in the steam table at that temperature. It is important to note that the specific volume of steam can vary depending on the pressure, so it is important to also consider the pressure at which the steam is being measured.
 

1. What is thermodynamics?

Thermodynamics is the branch of physics that deals with the relationships between heat, work, temperature, and energy.

2. What are the laws of thermodynamics?

The four laws of thermodynamics are:

  1. First Law: Energy cannot be created or destroyed, only transferred or converted from one form to another.
  2. Second Law: The total entropy of a closed system will always increase over time.
  3. Third Law: As temperature approaches absolute zero, the entropy of a system approaches a constant minimum.
  4. Zeroth Law: If two systems are in thermal equilibrium with a third system, then they are also in thermal equilibrium with each other.

3. What is the difference between heat and temperature in thermodynamics?

Heat is the transfer of energy between two objects due to a difference in temperature. Temperature is a measure of the average kinetic energy of particles in a substance.

4. What is an example of the application of thermodynamics?

An example of the application of thermodynamics is the design and operation of a car engine. The burning of fuel inside the engine produces heat, which is converted into mechanical work to power the car.

5. How does thermodynamics relate to everyday life?

Thermodynamics is involved in many everyday processes, such as cooking, heating and cooling systems, and electricity generation. It also helps to explain the efficiency of various systems and the direction of chemical reactions.

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