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Double Pipe Heat Exchanger DesignCheCalc.comTag No.E-101Chemical Engineering CalculationsDescriptionProduct CoolerDate30/06/14User Input ByCheCalcDouble Pipe DataHot Fluid LocationInner PipeMaterialCarbon SteelCounter-currentHairpin Lengthft20

Inner PipeOuter PipeInside Diameter2.067inchInside Diameter3.068inchOutside Diameter2.375inchFluid DataHotColdFlowratelb/h9692.3110000.0Inlet TemperatureF150.060.0Outlet TemperatureF130.084.0Fouling Factorh.ft.F/BTU0.0010.001Properties@ Mean TemperatureDensitylb/ft48.447.5ViscositycP20.55Specific HeatBTU/lb.F0.520.42Thermal ConductivityBTU/ft.h.F0.10.092Viscosity at WallcP20.55CalculationsHotColdMean TemperatureF140.072.0Equivalent Diameterinch2.0670.693Velocityft/s2.392.84Prandtl's NumberPr25.166.07Reynold's NumberRe1480821098Flow RegionTurbulentTurbulentCorrelationGnienlinskiGnienlinskiFilm CoefficientBTU/h.ft.F107.57234.32Straight Length DPpsi0.2751.053Total Pressure Droppsi0.3111.102(Including Bends)

Sizing ResultLMTDF67.98Tube wall temperatureF91.41Heat Transfer CoefficientBTU/h.ft.F56.73Areaft26.14Lengthft42.04No. of Hairpin1.05Hairpin Selected1.0060.0060.0084.0084.0067.9803847176150.00150.0065.5573263598130.00130.0067.9803847176

Counter-current1Co-current22.0670.6931.0510.0010.0010.02330.02061.00014072.000002857125.166.0740107.572.392.84Carbon Steel26234.321480821098Copper21891.4111Inconel8.70.00053Monel14.3Inner Pipe111.149Nickel35Outer Pipe267.980Stainless Steel9.1100800.0260.198

200.05317200.0531742.533957096942.533957096942.040994293242.040994293242.03510843942.03510843942.035037481542.03503748150.77411.5042.03503662642.03503662642.035036615742.035036615742.035036615542.035036615542.035036615542.035036615542.035036615542.035036615542.035036615542.035036615542.035036615542.035036615542.035036615542.0350366155415928.76486072.490.0280.0250.0280.0250.0280.0250.0280.0250.0280.0250.0280.0250.0280.0250.0280.0250.0280.0250.0280.0250.0280.0250.0280.0250.0280.025182.30145.92185.26147.07185.30147.08185.30147.08185.30147.080.006480.00455185.30147.08185.30147.08185.30147.08185.30147.08185.30147.08185.30147.08185.30147.08185.30147.081112.736.2021.3310.3821.4210.4221.4210.4221.4210.4221.4210.4221.4210.4221.4210.4221.4210.4221.4210.4221.4210.4221.4210.4221.4210.42182.30145.92185.26147.07185.30147.08185.30147.08185.30147.080.039840.03671185.30147.08185.30147.08185.30147.08185.30147.08185.30147.08185.30147.08185.30147.08185.30147.08105.84232.47107.55234.29107.57234.32107.57234.32107.57234.3211107.57234.32107.57234.32107.57234.32107.57234.32107.57234.32107.57234.32107.57234.32107.57234.32

0.0400.037105.84232.47107.55234.29107.57234.32107.57234.32107.57234.3211107.57234.32107.57234.32107.57234.32107.57234.32107.57234.32107.57234.32107.57234.32107.57234.3256.0756.7256.7356.7356.730.2751.05356.7356.7356.7356.7356.7356.7356.7356.7326.4526.1426.1426.1426.1426.1426.1426.1426.1426.1426.1426.1426.1442.5342.0442.0442.0442.040.3201.11542.0442.0442.0442.0442.0442.0442.0442.040.3111.10242.0350.31101.102426.136

10.0510

Metric

Double Pipe Heat Exchanger DesignCheCalc.comTag No.E-101Chemical Engineering CalculationsDescriptionProduct CoolerDate30/06/14User Input ByCheCalcDouble Pipe DataHot Fluid LocationInner PipeMaterialCarbon SteelCo-currentHairpin Lengthm6.096

Inner PipeOuter PipeInside Diameter52.5mmInside Diameter77.93mmOutside Diameter60.3mmFluid DataHotColdFlowratekg/h4396.44535.9Inlet TemperatureC65.615.6Outlet TemperatureC54.428.9Fouling Factorh.m.C/kcal0.000200.00020Properties@ Mean TemperatureDensitykg/m775.29760.88ViscositycP20.55Specific Heatkcal/kg.C0.520.42Thermal Conductivitykcal/m.h.C0.150.14Viscosity at WallcP20.55CalculationsHotColdMean TemperatureC60.022.2Equivalent Diametermm52.517.6Velocitym/s0.730.87Prandtl's NumberPr25.166.07Reynold's NumberRe1480821098Flow RegionTurbulentTurbulentCorrelationGnienlinskiGnienlinskiFilm Coefficientkcal/h.m.C524.901143.70Straight Length DPbar0.0190.073Total Pressure Dropbar0.0210.076(Including Bends)

Sizing ResultLMTDC36.42Tube wall temperatureC33.00Heat Transfer Coefficientkcal/h.m.C276.87Aream2.52Lengthm13.29No. of Hairpin1.09Hairpin Selected1.00

20

2.0673.06848.447.52.3759692.3110000.0020.55140.072.0150.060.00.520.422.0670.693130.084.00.100.092.392.840.0010.00120.5525.166.0765.56148082109891.41TurbulentTurbulent56.71GnienlinskiGnienlinski27.1160.0060.00107.51234.2543.6184.0084.0067.98028835030.2751.0531.09150.00150.0065.55720615550.3111.1021.00130.00130.0065.5572061555Counter-current1Co-current2

107.51234.2591.41

Inner Pipe11Outer Pipe2

Carbon Steel2626Copper218Inconel8.7Monel14.3Nickel35Stainless Steel9.1

2.0670.6930.0010.0010.02330.02061.090139.999960472.000059436325.166.071.0002.392.844014808210981110.09000.0005343.6081.14927.11465.557100800.40.198

200.05317200.0531744.106310389444.106310389443.613842026543.613842026543.608098418743.608098418743.608030805643.608030805643.608030009643.60803000960.77411.5043.608030000343.608030000343.608030000143.608030000143.608030000143.608030000143.608030000143.608030000143.608030000143.608030000143.608030000143.608030000143.608030000143.6080300001415928.76486072.480.0280.0250.0280.0250.0280.0250.0280.0250.0280.0250.0280.0250.0280.0250.0280.0250.0280.0250.0280.0250.0280.0250.0280.0250.0280.025182.30145.92185.15147.03185.18147.04185.18147.04185.18147.04185.18147.040.006480.00455185.18147.04185.18147.04185.18147.04185.18147.04185.18147.04185.18147.04185.18147.041112.736.2021.0810.2621.1610.3021.1610.3021.1610.3021.1610.3021.1610.3021.1610.3021.1610.3021.1610.3021.1610.3021.1610.3021.1610.30182.30145.92185.15147.03185.18147.04185.18147.04185.18147.04185.18147.040.039840.03671185.18147.04185.18147.04185.18147.04185.18147.04185.18147.04185.18147.04185.18147.04105.84232.47107.49234.23107.51234.25107.51234.25107.51234.25107.51234.2511107.51234.25107.51234.25107.51234.25107.51234.25107.51234.25107.51234.25107.51234.25

0.0400.037105.84232.47107.49234.23107.51234.25107.51234.25107.51234.25107.51234.2511107.51234.25107.51234.25107.51234.25107.51234.25107.51234.25107.51234.25107.51234.2556.0756.7056.7156.7156.7156.710.2751.05356.7156.7156.7156.7156.7156.7156.7127.4227.1227.1127.1127.1127.1127.1127.1127.1127.1127.1127.1127.1144.1143.6143.6143.6143.6143.610.3201.11543.6143.6143.6143.6143.6143.6143.610.3111.1020.31101.1024