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A single-effect evaporator is used to concentrate 60000 kg h-1 of a 40 wt % NaOH solution which is fed to the evaporator at 40°C. The concentrated liquid is a 55 wt % NaOH solution. Saturated steam at 3 atm is available for heating. The vapor space in the evaporator is at a pressure of 10 kPa. The overall heat transfer coefficient is 2000 W m-2 K-1. Determine:
a) The amount of vapor produced.
b) The area required for the evaporator. Include clearly values of relevant properties.
c) The economy.
Refractoriness: It indicates the capacity of a material to withstand heat without appreciable deformation or softening under particular operating conditions and is measured as the
definition
integration
In the dryer air furnace, a natural gas containing 92.5 mole% methane, 4.8% ethane, and the remainder propane is burned with 20% excess air. The fuel enters the furnace at 25°C and
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What is wrong with each of the following attempts to write an electron configuration? Justify your answer with suitable explanation. (a) 1s22s3 (b) 1s22s22p23s2 (c) 1s22s23s2 (d) 1
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Could I get a code on designing electrolytic reactors in the production of sodium ?
Mass housing
Heat capacity: Heat capacity of furnace depend on (1) Thermal conductivity (2) Specific heat and (3) Specific gravity of refractory. The dense and heavy fire clay
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