Chemical Engineering Answers

Questions answered by Experts: 846

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Search

For the calculation of caloric temperature please refer [3] (page 827). 


Classify the following flows as laminar or turbulent a) Water at 200C flowing in a 0.30m diameter pipe at 1.1m/s. b) Oil of specific gravity 1.1, viscosity 0.05kg/m.s at 200C flowing in a 0.15m diameter pipe at 0.5m/s

Domestic LPG cylinder has the following dimensions: height = 580 mm, diameter = 318 mm. Assume there is only butane in the cylinder. Given that the initial pressure inside the cylinder is 2.5 bar and the ambient temperature is 298.15 K. According to the print on the cylinder, a full cylinder has 15 kg gas. Some part of butane is in liquid state and some part is in gas state. Use Redlich Kwong equation of state for all process calculations. (a) Develop the expression for total moles of the gas in terms of volume of cylinder, molar volume of liquid butane, molar volume of gaseous butane, fraction of cylinder volume filled with liquid butane. [2] (b) Convert the above relationship in terms of liquid compressibility factor Zl and gas compressibility factor Zv [2] (c) Use the above relationship to develop the equation for finding the fraction of cylinder volume filled with liquid butane. [2] (d) Estimate Zl [10] (e) Estimate Zv [10] (f) Estimate fraction of cylinder volume filled with liquid butane. [5]


A car manufacturer claims that its car can accelerate from rest to 28 m/s in 14 seconds. Find the average acceleration and the distance the car has traveled while in the process of stopping


A car is moving at 17.7 m/s when it begins to slow down with a deceleration of 2.5 m/s2. How long does it take for the car to travel 80 meters as it slows down?

 

 

 

 

 

 

 

 

 

 

 

 



feedback control loop with a proportional controller has an open loop transfer function GOL = Kc/S(5S+1)²where time is in minutes. Tune for PID controller using Zeigler Nicholas settings.

Explain step by step?


Solve ∫0^t y''(τ)y'(t-τ)dτ=y(t),y(0)=y'(0)=20


a crusher and a crusher are connected to the same electric drive power 2700 kg / h of the material pass successively through the crusher and then the crusher. Sieve particle size analysis of feed, crusher product and mill product respectively indicated specific areas of 2.9, 103 and 865 m2 / kg. Calculate the horsepower required to operate the crusher-crusher assembly, if the crusher's energy efficiency is 20% and the crusher's energy efficiency is 25%. The Rittinger's number for material is 77.4 m2 / kJ.




A pipe whose average roughness is 0.02mm is employed to raise water through a height of 10m. The pipe length is 100m and its diameter is 300mm. Calculate the power required for a discharge rate of 30,000 l/min

a roller mill or ball mill with a diameter of 3.98 m operating at a net energy loss of 19.5% to reduce a particle with sphericity of 1 from size of 3.98 X10^-3 m to 199.9 X10^-6 m. Calculate the percentage load volume to operate at 70% of critical speed. The mill cannot be operating at more than 1.31m^3 load volume at any given time


LATEST TUTORIALS
APPROVED BY CLIENTS