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Q. Heat exchangers for plant design?
All exchangers shall be arranged to be readily dismantled for cleaning and maintenance. Cooling and heating streams generally flow against each other (counter flow), to maximize heat transfer. Elevations of exchangers shall be kept to a minimum unless stipulated for process requirements, but should be of sufficient height to allow minimum clearance under bottom outlets and drains. Also, exchangers containing hydrocarbons operating above 260 °C (AIT) should not have process equipment located directly above them.
Heat exchangers are generally positioned in process flow sequence, or grouped together for convenient interconnection, and spaced on the plot to allow sufficient operational access between them. Space should be allocated to one side of exchangers for piping valves and manifolds. Where piping requirements are the deciding factor, drains from exchanger piping must be allowed for. Horizontal thermo-syphon reboilers require a specific elevation relative to the distillation column vapour return; this should be defined on P&ID's and is a critical dimension.
(a) Derive the mathematical equation for work done in a polytropic process (i.e.) PV n =c) (b) A mass of gas is compressed in a quasi-static process from 80KPa, 0.1m 3 to 0.4M
How do we calculate BMD for the all type of beams?
Drive an mathmatical expression for condition of maximum discharge through the chimney. Dry saturated steam is supplied from a boiler to a steam engine at a pressure of 15 bar.
Evaluate secure axial load: A small piece of ISA (200 × 100 × 15) angle carries a compressive load, the line of action of which coincides along the intersection of the middle
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hardness of bore well water is less than sea water .justify
Evaluate the power output of turbine: Q: A turbine in steam power plant operating under steady state conditions receives the superheated steam at 3MPa and 350ºC at the rate o
Determine the axial extension along a load: An open coiled helical spring is created having 10 turns of a mean radius of 60 mm. The wire diameter is 10 mm and coils make an an
Determine the acceleration of each block: In the system of associated blocks shown in figure the coefficient of kinetic friction under blocks A and C is 0.20. Determine the ac
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