Question
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A stream of pure cyclopentane vapor flowing at a rate of 1550 L/s at 150 ºC...
A stream of pure cyclopentane vapor flowing at a rate of 1550 L/s at 150 ºC and 1 atm of pressure enters a cooler, which is operating at 1 atm. The cooler functions as a flash separator (one liquid outlet stream, one vapor outlet stream) with 75% of the feed being condensed and exiting the cooler at 1 atm. The liquid stream exiting the cooler is in equilibrium with the exiting vapor. Use a molar flow and enthalpy summary table to help organize your work.
- What is the temperature (ºC) of the streams exiting the cooler? Clearly explain your reasoning.
- Calculate the required cooling rate in units of kW
Solutions
Amanda K answered 4 months agoRelated Solutions
A stream of water vapor flowing at a rate of 452 mol/h is brought from 700.0...
A stream of water vapor flowing at a rate of 452 mol/h is
brought from 700.0 °C and 10 bar to 400.0 °C and 1 atm. Using Steam
Tables, Estimate the required cooling rate (in kW). Use five
significant figures in your calculations.
Saturated steam at 300°C is used to heat a counter-current flowing stream of methanol vapor from...
Saturated steam at 300°C is used to heat a counter-current
flowing stream of methanol vapor from 65°C to 240°C in an adiabatic
(no heat exchange with surroundings) heat exchanger. The flow rate
of methanol is 400 kg/minute, and the steam condenses and leaves
the heat exchanger as liquid water at 90°C.
Calculate the required rate of heat transfer from the water to
the methanol in kW. Then, calculate the required flow rate of
entering steam in m3/min.
Saturated steam at 300°C is used to heat a counter-current flowing stream of methanol vapor from...
Saturated steam at 300°C is used to heat a counter-current
flowing stream of methanol vapor from 65°C to 240°C in an adiabatic
(no heat exchange with surroundings) heat exchanger. The flow rate
of methanol is 400 kg/minute, and the steam condenses and leaves
the heat exchanger as liquid water at 90°C. Calculate the required
rate of heat transfer from the water to the methanol in kW. Then,
calculate the required flow rate of entering steam in m3/min.
In the process of methanol production, a gas stream flowing at a molar flow rate of...
In the process of methanol production, a gas stream
flowing at a molar flow rate of 100 mol / min containing 32 mol%
CO, 64 mol% Hz. and 4 mol% of N2 is led to the reactor. The product
from the reactor is condensed where liquid methanol is separated.
Unreacted gases are recycled in a ratio of 5: 1 mol of recycle to
moles of fresh feed. Parts of the recycled gases are purged. The
reaction equation is CO +...
a) A salt-water tank has pure water flowing into it at 5 L/min. The contents of...
a) A salt-water tank has pure water flowing into it at 5 L/min.
The contents of the tank are kept thoroughly mixed, and the
contents flow out at 5 L/min. Initially, the tank contains 1 kg of
salt in 10L of water. How much salt will be in the tank after 20
minutes? Let ?? represent the amount of salt in the tank at time t
and let ?? represent the volume of saltwater in the tank at time
t....
A stream of air (21mole% O2, the rest N2) flowing at a rate of 30 kg/h...
A stream of air (21mole% O2, the rest N2) flowing at a rate of
30 kg/h is mixed with a stream of CO2. The CO2 enters the mixer at
a rate of 23.6 m3/h at 200 oC and 1.5 bar. What is the mole % of
CO2 in the product gas? a) Calculate the number of kg. moles of air
flowing b) Calculate the number of kg. moles of CO2 c) Calculate
the mole percent of CO2 in the mixture?
Air at 1 atm flowing at a rate of 0.1 kg / s has to be...
Air at 1 atm flowing at a rate of 0.1 kg / s has to be cooled
from 400 to 300K in a tube of 10 cm in diameter with a uniform wall
temperature of 250 K. Determine the length of the tube.
A compressor compresses air flowing at 15 litre/s, 150 kPa, 20°C at the inlet to 500...
A compressor compresses air flowing at 15 litre/s, 150 kPa, 20°C
at the inlet to 500 kPa, 250°C at the outlet. During the
compression, heat is lost at the rate of 1.5 kW. Determine the
minimum input work for the compressor.
The vapor pressures of SO2(s) and SO2(l) in the vicinity of the triple point are given...
The vapor pressures of SO2(s) and SO2(l)
in the vicinity of the triple point are given by the equations, Ln
(P/torr) = 23.9812 - 4244.7/T and Ln (P/torr) = 19.2453 - 3298.4/T,
respectively, where T is absolute temperature. (i)Determine from
these equations the three phase change enthalpies, ∆subH°, ∆vapH°
and ∆fusH°. (ii)Show your determination of the temperature and
pressure at the triple point of sulfur dioxide. (iii)Assume that
the enthalpy of vaporization remains at the value determined here,
and show...
The vapor pressures of SO2(s) and SO2(l) in the vicinity of the triple point are given...
The vapor pressures of SO2(s) and SO2(l)
in the vicinity of the triple point are given by the equations, Ln
(P/torr) = 23.9812 - 4244.7/T and Ln (P/torr) = 19.2453 - 3298.4/T,
respectively, where T is absolute temperature. (i)Determine from
these equations the three phase change enthalpies,
∆subH°, ∆vapH° and ∆fusH°.
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