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* PLATE HEAT EXCHANGER CALCULATION - SWEP 97.11 *

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*** DESIGN CALCULATION - GC-26 ***

Customer: Date: 2000/7/4

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: Duty requirements :

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Side 1 Side 2

Inlet temperature C : 56.00 33.00

Outlet temperature C : 48.00 43.00

Flow rate kg/h : 78000 62343

Max. pressure drop mwc : 5.00 5.00

Number of heat transfer units NTU : 0.572 0.716

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: Physical properties :

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Fluid number : 1 1

Fluid name : Water Water

Reference temperature C : 52.00 38.00

Viscosity cP : 0.528 0.680

Viscosity - wall cP : 0.550 0.641

Density kg/m3 : 985.9 991.6

Specific heat capacity kcal/kg,C : 0.997 0.998

Thermal conductivity kcal/m,h,C : 0.554 0.540

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: Plate heat exchanger :

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Heat load Mcal/h : 622.0

Total heat transfer area m2 : 31.72

Log mean temperature difference C : 13.98

Overall H.T.C. kcal/m2,h,C : 3182/1403

Calculated pressure drop mwc : 1.38 0.91

Number of channels : 62H 61H

Connection diameter mm : 100 100

Total number of plates : 124

Oversurfacing % : 127

Fouling factor m2,h,C/Mcal : 0.398