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A process plant has two streams of hot fluid and two streams of cold fluid, as defined in Table P19.1. It is required to minimise the energy which must be transferred to hot and cold utilities by transferring energy between the streams. If the minimum temperature difference for effective heat transfer is 20 °C, design a network which achieves the requirement, and minimises the transfers to the utilities. Is there a pinch point in this problem, and at what temperature does it occur? Calculate the minimum heat transfers to and from the cold and hot utilities.
The corresponding radii of rotation are 0.2 m, 0.15 m, 0.25 m and 0.3 m respectively and the angles between successive masses are 450 , 750 and 1350 - Find the position and magnitude of the balance mass required , if its radius of rotation is 0.2 m..
Find the transmittance at each wavelength. and the absorbance at each wavelength. Plot the spectrum of the compound.
a stationary gas turbine power plant operates on a simple ideal brayton cycle with air as the working fluid. the air
You are asked to choose the largest block size with the constraint that the average internal fragmentation be less 5% of the total number of bytes stored. Show your work.
Determine the temperature of the water at this pressure.
if f1 110n f2 121n and f3 85n determine the magnitude and coordinate direction angles of the resultant couple
a rigid tank contains 1 kg of water at 90 degrees c. if 200 g of the water are in the liquid phase and the rest is
An adiabatic compressor compresses nitrogen (k=1.4, R=0.297) from P1=200 kPa and T1=300K to P2=1500kPa. The isentropic efficiency of the compressor is 80%, mass flow rate is 2247kg/hr, and I found T2s=533K and T2a=591K. How much power input does this..
Determine the magnitude FS of the spring force and the magnitudes FA and FB of the bearing forces at A and B which are perpendicular to the hinge axis AB.
Air enters a non-ideal gas turbine at T1 = 2290°F, P1 = 196 psia and exits at T2 = 1200°F, P2 = 14 psia. (a) Assuming constant specific heats evaluated at 1000F, find the turbine efficiency using the Air Tables.
long cylindrical steel rods density 7833 kgm3 and cp 0.465 kjkg middot degc of 15-cm diameter are heat-treated by
The atomic radii of a divalent cation and a monovalent anion are 0.77 nm and 0.136 nm, respectively. Calculate the force of attraction between these two ions at their equilibrium interionic separation.
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