ALL ABOUT TEMP-PLATE® - Paul Mueller Company

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HEATING APPLICATION CURVES
Heating Application Curves for Heating Water from 60°F to Curve Temperature in
One Hour for Immersed Plates Only (Without Agitation)
Gallons of Water Heated per Square Foot of Temp-Plate Surface
150
125
100
75
50
25
0
100°F
125°F
150°F
175°F
200°F
50 100 150 200 250
Saturated Steam Pressure (psig)
Example:
Problem — How many square feet of Temp-Plate are required to heat the water in a 3' wide x 9' long x 21 /2' deep
tank from 60°F to 150°F in two hours using 100 psig saturated steam? Plates are immersed and in a vertical position
without mechanical agitation.
Solution — Volume of tank equals 3' x 9' x 2' (to liquid level) = 54 cubic feet. 54 cu. ft. x 7.48 (gal/cu ft) = 404 gallons
of water. Using above chart, start at 100 psig on bottom scale; read up to 150°F curve and moving to left, read 47 gal.
heated per sq ft. Therefore, 404 ÷ 47 = 8.6 sq ft (total water contact surface) required for one hour. Divide 8.6 by 2 to
give surface required for two hours.