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Estimating Heat Capacities for Solutions with D... 08 Nov 2010
Often times it is necessary to find the heat capacity for solutions with dissolved solids. A quick estimation method was proposed by Dimoplon in 1972. The proposed exp ression is: Cp(soln) = W 1 Cp(solid) + W 2 Cp(water) Eq. (1) where: Cp(soln) = Heat capacity of the solution…
Experienced Based Rules of Chemical Engineering 08 Nov 2010
Experience is typically what turns a good engineer into a great engineer. An engineer that can look at a pipe and a flowmeter and guess the pressure drop within 5%. Someone who can at least estimate the size of a vessel without doing any calculations. When I think of such rules,…
Solving Integral Equations in MS Excel 08 Nov 2010
TankVolume, as it appears in the online store, calculates the liquid volume of partially filled tanks, horizontal or vertical, with various types of heads. Â One of these, the torispherical head, requires that integral equations be solved. Â This article shows how the integrals…
Measure Discharge Flow from a Horizontal Pipe 08 Nov 2010
Ever been confronted with the exit of a horizontal pipe full of flow?Â Wouldn't it be nice if there was a simple method to determine the flow rate in the pipe?Â Here's a method that may help. This works surprisingly well and is very easy to do. All measurements are in inches.…