The total floor area of a building, including below-grade space but excluding unenclosed areas, measured from the exterior of th
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Answer:
T2 ( final temperature ) = 576.9 K
a) 853.4 kJ/kg
b) 1422.3 kJ / kg
Explanation:
given data:
pressure ( P1 ) = 90 kPa
Temperature ( T1 ) = 30°c + 273 = 303 k
P2 = 450 kPa
To determine final temperature in an Isentropic process
----------- ( 1 )
T2 = 303 = 576.9K
The work performed in a piston-cylinder device is calculated using the subsequent formula
------- ( 2 )
where: cv = 3.1156 kJ/kg.k for helium gas
T2 = 576.9K, T1 = 303 K
substituting values into equation 2
= 853.4 kJ/kg
the work done in a steady flow compressor is determined using this
where: cp ( constant pressure of helium gas ) = 5.1926 kJ/kg.K
T2 = 576.9 k, T1 = 303 K
plugging values back into equation 3
= 1422.3 kJ / kg
Explanation:
At a temperature of and relative humidity of 86%, the humidity ratio stands at 0.0223 with a specific volume of 14.289.
At a temperature of and relative humidity of 40%, the humidity ratio is 0.0066 while the specific volume is 13.535.
To determine the mass of air, the following formula can be used:
Now, we will calculate the volume
The duration required to fill the cistern can be determined with the equation:
By substituting the values into the preceding formula, we find:
Thus, the hours necessary to fill the cistern amount to 4.65 hours.
Answer:
provided below
Explanation:
