Double Pipe Xchanger

ParallelDouble Pipe Heat ExchangerParallel Flow0.00378 m3/galDataDensity
Belinda Hernandez: Belinda Hernandez:Density at 50 degCPerry's988kg/m3Kcu382.5
Belinda Hernandez: Belinda Hernandez:K for Copper at 50 degCW/mKViscosity
Belinda Hernandez: Belinda Hernandez:Viscosity of water at 50 deg C0.0005471Pa.sKss16.7W/mKCp4180kJ/kg CKwater0.645W/mKPass #1: CopperFlow Rate (GPH)Corrected Flow Rate (GPH)RunInner Tube TC Temperature (degC)Outer Tube TC Temperature (degC) @ constant 8GPHHeat Load
Belinda Hernandez: Belinda Hernandez:Q=mCpdTOverall coefficient of Heat TransferTheoretical CoefficientsFlow Rate (GPH)Exp Q (W)Theo Q (W)Error %Exp U (W/m2K)Theo U (W/m2K)Error %#1#2#1#2#3#4#5#6RunVol Flow (m3/s)Mass Flow (kg/s)Qin (J/s)Qin averageQout (J/s)Qout average% DifferenceAverageRunTa (C) inletTb (C) outletLMTDAin (m2)Aout (m2)Uin (W/m2K)Uin averageUout (W/m2K)Uout average% DifferenceAverage % DifferenceRunDin (m)(D*pi)/4RePrNuhihoUiQ
Belinda Hernandez: Belinda Hernandez:Q=(2pi*kL*(T1-T2)/ln(r2/r1)QaveAi0.02238319.02106282.6999.7048.64429.7388.6889.12155.547.527.328.128.428.833.033.310.00000960.0095316.4319.0237.3233.314.315.51301.4287.4294.290.02230.026248.248.630.830.322.0423.2018.13E-036.38E-032710.323.5518.751488.1514.8429.7105404.3106282.7Ao0.026212521.58122093.3499.5779.38569.7986.072
Jeanette Rivera: Jeanette Rivera:After five minutes54.646.927.127.828.028.332.332.820.00000960.0095304.5225.414.92300.7287.3293.9046.529.322.6622710.323.5518.751488.1514.8429.7101451.7Do0.00952516718.49129559.4899.45109.30701.9084.433
Jeanette Rivera: Jeanette Rivera:After 10 minutes56.147.627.228.028.228.533.433.230.00000960.0095336.2237.317.23302.1287.6294.7451.230.824.9132710.323.5518.751488.1514.8429.7111992.1Di0.0081281212.98157.748.729.329.629.529.534.834.610.00001360.0135506.6521.6298.3272.025.931.51301.6287.3294.3477.279.438.735.333.1938.5113857.463.5524.871973.6682.7569.8118579.9122093.3L0.86995257.948.428.428.928.929.132.733.120.00001360.0135534.7264.533.82302.7288.5295.4981.234.240.7123857.463.5524.871973.6682.7569.8125167.6357.247.928.729.129.129.332.833.230.00001360.0135523.5253.334.83301.7287.9294.7079.732.941.6333857.463.5524.871973.6682.7569.8122532.51616.85158.749.330.230.630.630.63434.110.00001770.0175686.8718.5285.0280.141.443.91301.7288.4294.95104.5109.336.936.347.7850.1015007.563.5530.642431.7841.2701.9123850.1129559.5259.749.430.530.730.730.83434.320.00001770.0175752.6277.746.12302.4288.3295.24114.435.952.1825007.563.5530.642431.7841.2701.9135708.1359.549.73131.331.431.534.534.830.00001770.0175716.1277.744.13301.7288.1294.80109.036.050.3535007.563.5530.642431.7841.2701.9129120.3Pass #2: CopperFlow Rate (GPH)Corrected Flow Rate (GPH)RunInner Tube TC Temperature (deg C)Outer Tube TC Temperature (degC) @ constant 8GPMHeat LoadOverall coefficient of Heat TransferTheoretical CoefficientsFlow Rate (GPH)Exp Q (W)Theo Q (W)Error %Exp U (W/m2K)Theo U (W/m2K)Error %#2#3#6#7RunVol Flow (m3/s)Mass Flow (kg/s)Qin (J/s)Qin averageQout (J/s)Qout average% DifferenceAverageRunTa (C) inletTb (C) outletLMTDAin (m2)Aout (m2)Uin (W/m2K)Uin averageUout (W/m2K)Uout average% DifferenceAverage % DifferenceRunDin (m)(D*pi)/4RePrNuhihoUiQQaveAi0.02078108.1033384.4599.6818.36429.4795.7389.12147.544.633.335.310.00000960.0095114.7108.179.184.418.411.81287.4282.5284.890.02070.024319.518.411.412.226.0019.5518.13E-036.38E-032710.323.5518.751488.1514.8429.535420.133384.4Ao0.024312187.6240712.7499.5431.80569.4594.41246.944.732.835.020.00000960.009587.087.0-0.02287.3282.9285.0414.812.68.0122710.323.5518.751488.1514.8429.526870.4Do0.00952516253.3042341.2599.4042.87701.4893.89347.644.533.235.430.00000960.0095122.687.017.03287.6282.3284.8920.812.624.6632710.323.5518.751488.1514.8429.537862.8Di0.0081281212.98148.745.534.636.410.00001360.0135180.1187.6101.384.428.038.11287.3282.3284.7430.631.814.712.235.2244.6813857.463.5524.871973.6682.7569.439084.240712.7L0.80645248.444.833.134.520.00001360.0135202.678.844.02288.5283.5285.9434.311.450.2423857.463.5524.871973.6682.7569.443969.8347.944.733.234.530.00001360.0135180.173.242.23287.9283.4285.5930.510.648.5933857.463.5524.871973.6682.7569.439084.21616.85149.345.734.135.210.00001770.0175263.0253.380.485.253.249.51288.4283.7285.9944.542.911.612.358.7055.2815007.563.5530.642431.7841.2701.543969.842341.2249.446.334.335.520.00001770.0175226.587.744.22288.3284.0286.0938.312.650.4125007.563.5530.642431.7841.2701.537862.8349.746.034.836.030.00001770.0175270.387.751.03288.1283.2285.5945.812.756.7135007.563.5530.642431.7841.2701.545191.1Pass #3: CopperFlow Rate (GPH)Corrected Flow Rate (GPH)RunInner Tube TC Temperature (deg C)Outer Tube TC Temperature (degC)Heat LoadOverall coefficient of Heat TransferTheoretical Coefficients#4#5#7#8RunVol Flow (m3/s)Mass Flow (kg/s)Qin (J/s)Qin averageQout (J/s)Qout average% DifferenceAverageRunTa (C) inletTb (C) outletLMTDAin (m2)Aout (m2)Uin (W/m2K)Uin averageUout (W/m2K)Uout average% DifferenceAverage % DifferenceRunDin (m)(D*pi)/4RePrNuhihoUiQQaveInnerFlow Rate (GPH)Exp Q (W)Theo Q (W)Error %Exp U (W/m2K)Theo U (W/m2K)Error %89.12149.748.640.841.410.00000960.009543.550.123.723.729.435.41282.05280.35281.200.01650.01949.410.84.34.336.5742.2318.13E-036.38E-032710.323.5518.751488.1514.8430.010737.612364.5Ai0.0165850.0912364.4999.5910.78429.9597.49249.748.441.041.620.00000960.009551.423.736.82281.85279.95280.9011.14.343.5822710.323.5518.751488.1514.8430.012689.9Ao0.01941282.5514316.7899.4217.71570.0996.89349.648.240.641.230.00000960.009555.423.740.03282.15280.15281.1511.94.346.5332710.323.5518.751488.1514.8430.013666.0Do0.00952516119.3415943.6999.2525.61702.2796.351212.98146.845.237.037.410.00001360.013590.182.622.531.960.044.41282.95280.95281.9519.317.74.15.864.9050.5313857.463.5524.871973.6682.7570.115618.314316.8Di0.008128246.845.336.737.420.00001360.013584.439.436.42283.25281.05282.1518.17.243.1323857.463.5524.871973.6682.7570.114642.2L0.644525346.545.237.037.630.00001360.013573.233.836.83282.65280.75281.7015.76.243.5833857.463.5524.871973.6682.7570.112689.91616.8514543.535.235.710.00001770.0175109.6119.336.531.750.057.91282.95280.95281.9523.525.66.75.855.7862.9515007.563.5530.642431.7841.2702.314642.215943.7245.343.735.535.920.00001770.0175116.929.260.02282.95280.95281.9525.15.364.9025007.563.5530.642431.7841.2702.315618.3345.543.73636.430.00001770.0175131.529.263.63282.65280.45281.5528.25.368.1835007.563.5530.642431.7841.2702.317570.6Pass #4: CopperFlow Rate (GPH)Corrected Flow Rate (GPH)RunInner Tube TC Temperature (deg C)Outer Tube TC Temperature (degC)Heat LoadOverall coefficient of Heat TransferTheoretical Coefficients#5#6#8#9RunVol Flow (m3/s)Mass Flow (kg/s)Qin (J/s)Qin averageQout (J/s)Qout average% DifferenceAverageRunTa (C) inletTb (C) outletLMTDAin (m2)Aout (m2)Uin (W/m2K)Uin averageUout (W/m2K)Uout average% DifferenceAverage % DifferenceRunDin (m)(D*pi)/4RePrNuhihoUiQQaveInnerFlow Rate (GPH)Exp Q (W)Theo Q (W)Error %Exp U (W/m2K)Theo U (W/m2K)Error %89.12148.647.341.441.610.00000960.009551.446.17.96.673.374.21280.35278.85279.600.00930.012919.817.72.21.880.0880.6814.57E-033.59E-034818.353.5529.712357.9815.7763.46118.65491.1Ai0.0093846.145491.0999.1617.75763.4297.68248.447.141.641.720.00000960.009551.44.085.72279.95278.55279.2519.81.189.5224818.353.5529.712357.9815.7763.46118.6Ao0.01291282.556903.0998.8031.691011.9996.87348.247.341.241.430.00000960.009535.67.963.63280.15279.05279.6013.72.272.4434818.353.5529.712357.9815.7763.44236.0Do0.0063516126.658158.2098.4548.641246.3496.101212.98145.243.837.437.610.00001360.013578.882.611.311.375.075.91280.95279.35280.1530.231.73.13.181.3782.0816857.703.5539.413127.21081.81012.06589.36903.1Di0.00457245.343.737.437.620.00001360.013590.111.377.82281.05279.25280.1534.63.183.5026857.703.5539.413127.21081.81012.07530.6L0.644525345.243.837.637.830.00001360.013578.811.375.03280.75279.15279.9530.33.181.3736857.703.5539.413127.21081.81012.06589.31616.85143.541.535.735.610.00001770.0175146.1126.6-7.3-2.4110.5103.51280.95279.05280.0056.148.6-2.0-0.7107.46102.4918902.333.5548.563853.11333.01246.39413.38158.2243.742.135.935.920.00001770.0175116.90.0100.02280.95279.35280.1544.90.0100.0028902.333.5548.563853.11333.01246.37530.6343.742.136.436.430.00001770.0175116.90.0100.03280.45278.85279.6544.90.0100.0038902.333.5548.563853.11333.01246.37530.6Pass #5: Stainless SteelFlow Rate (GPH)Corrected Flow Rate (GPH)RunInner Tube TC Temperature (deg C)Outer Tube TC Temperature (degC)Heat LoadOverall coefficient of Heat TransferTheoretical Coefficients#6#7#9#10RunVol Flow (m3/s)Mass Flow (kg/s)Qin (J)Qin averageQout (J)Qout average% DifferenceAverageRunTa (C) inletTb (C) outletLMTDAin (m2)Aout (m2)Uin (W/m2K)Uin averageUout (W/m2K)Uout average% DifferenceAverage % DifferenceRunDin (m)(D*pi)/4RePrNuhihoUiQQaveInnerFlow Rate (GPH)Exp Q (W)Theo Q (W)Error %Exp U (W/m2K)Theo U (W/m2K)Error %89.12142.141.637.437.410.00000960.009519.821.10.05.3100.064.31277.85277.35277.60.0
Jeanette Rivera: Jeanette Rivera:Mismas dimensiones que Pipe 30.04.34.60.01.0100.068.3218.13E-036.38E-032710.323.5518.751488.1514.8423.2213.1227.3Ai0.0165821.09227.3090.724.60423.2198.91242.141.537.337.520.00000960.009523.77.950.02277.95277.15277.55.21.555.822710.323.5518.751488.1514.8423.2255.7Ao0.01941237.52284.1286.798.14558.3098.5434241.537.537.730.00000960.009519.87.942.93277.65276.95277.34.31.549.232710.323.5518.751488.1514.8423.2213.1Do0.0095251646.28269.9282.8610.04684.4798.531212.98142.141.336.136.310.00001360.013545.037.511.39.460.060.51279.15278.15278.69.88.12.11.764.965.2813857.463.5524.871973.6682.7558.3340.9284.1Di0.00812824140.435.235.420.00001360.013533.811.350.02278.95278.15278.57.32.155.823857.463.5524.871973.6682.7558.3255.7L0.644525341.64135.735.830.00001360.013533.85.671.43279.05278.35278.77.31.075.133857.463.5524.871973.6682.7558.3255.71616.85141.540.935.635.710.00001770.017543.846.37.34.971.481.01279.05278.35278.79.510.01.30.975.183.4315007.563.5530.642431.7841.2684.5255.7269.9242.141.435.935.920.00001770.017551.10.0100.02279.35278.65279.011.10.0100.025007.563.5530.642431.7841.2684.5298.3342.141.536.436.530.00001770.017543.87.371.43278.85278.15278.59.51.475.135007.563.5530.642431.7841.2684.5255.7

Pass #6: Stainless SteelFlow Rate (GPH)Corrected Flow Rate (GPH)RunInner Tube TC Temperature (deg C)Outer Tube TC Temperature (degC)Heat LoadOverall coefficient of Heat TransferTheoretical Coefficients#7#8#10#11RunVol Flow (m3/s)Mass Flow (kg/s)Qin (J/s)Qin averageQout (J/s)Qout average% DifferenceAverageRunTa (C) inletTb (C) outletLMTDAin (m2)Aout (m2)Uin (W/m2K)Uin averageUout (W/m2K)Uout average% DifferenceAverage % DifferenceRunDin (m)(D*pi)/4RePrNuhihoUiQQaveInnerFlow Rate (GPH)Exp Q (W)Theo Q (W)Error %Exp U (W/m2K)Theo U (W/m2K)Error %89.12141.64137.437.610.00000960.009523.721.17.97.950.045.21277.4276.6276.90.0093
Jeanette Rivera: Jeanette Rivera:Mismas dimensiones que Pipe 40.01299.28.22.22.261.357.3214.57E-033.59E-034818.353.5529.712357.9815.7598.815.413.7Ai0.0093821.09213.70253.938.19598.8498.63241.54137.537.720.00000960.009519.87.942.92277.2276.5276.87.72.255.324818.353.5529.712357.9815.7598.812.8Ao0.01291245.02820.553119.0917.43741.7597.65341.54137.737.930.00000960.009519.87.942.93277.0276.3276.67.72.255.334818.353.5529.712357.9815.7598.812.8Do0.06351663.32522.265184.4124.50860.3197.151212.98141.340.636.336.510.00001360.013539.445.011.39.455.665.71278.2277.3277.715.317.43.12.665.973.9516857.703.5539.413127.21081.8741.718.020.6Di0.004572240.439.535.435.620.00001360.013550.711.363.62278.2277.1277.619.63.172.426857.703.5539.413127.21081.8741.723.1L0.64452534140.235.835.930.00001360.013545.05.677.83278.4277.5277.917.41.683.536857.703.5539.413127.21081.8741.720.61616.85140.94035.735.810.00001770.017565.863.37.39.780.073.81278.4277.4277.825.424.52.02.785.280.3818902.333.5548.563853.11333.0860.323.122.3241.440.535.936.120.00001770.017565.814.663.62278.7277.6278.125.44.172.428902.333.5548.563853.11333.0860.323.1341.540.736.536.630.00001770.017558.57.377.83278.2277.3277.722.62.083.538902.333.5548.563853.11333.0860.320.6

Flow vs Heat

K P3 P5

K P4 P6

Length

Profile

CounterflowDouble Pipe Heat ExchangerCounterflow0.00378 m3/galDataDensity988kg/m3Kcu382.5W/mKViscosity0.0005471Pa.sKss16.7W/mKCp4180J/kg CKwater0.645W/mKPass #1: CopperFlow Rate (GPH)Corrected Flow Rate (GPH)RunInner Tube TC Temperature (degC)Outer Tube TC Temperature (degC) @ constant 8GPHHeat LoadOverall coefficient of Heat TransferTheoretical CoefficientsInnerFlow Rate (GPH)Exp Q (W)Theo Q (W)Error %Exp U (W/m2K)Theo U (W/m2K)Error %#1#2#1#2#3#4#5#6RunVol Flow (m3/s)Mass Flow (kg/s)Qin (J)Qin averageQout (J)Qout average% DifferenceAverageRunTa (C) inletTb (C) outletLMTDAin (m2)Aout (m2)Uin (W/m2K)Uin averageUout (W/m2K)Uout average% DifferenceRunDin (m)(D*pi)/4RePrNuhihoUiQQaveAi0.02238222.7874222.2199.7034.96429.7391.8789.12161.455.848.546.345.945.644.842.510.00000960.0095221.5222.8237.3243.9-3.4-4.51286.1286.5286.20.02230.026234.735.031.732.64.618.13E-036.38E-032710.323.5518.751488.1514.8429.773783.074222.2Ao0.026212399.62768445693546.332912494199.5761.9406338314569.7989.13259.954.547.044.744.343.842.740.720.00000960.0095213.6249.1-7.72286.1287.0286.533.533.20.322710.323.5518.751488.1514.8429.771147.9Do0.00952516713.62293002128681.10583737499.45109.4382477443701.9084.41361.055.149.046.846.746.445.342.830.00000960.0095233.3245.2-2.53285.2285.5285.336.732.85.532710.323.5518.751488.1514.8429.777735.7Di0.0081281212.98160.053.243.441.240.840.340.137.710.00001360.0135382.7399.6320.8330.28.89.51289.8288.7289.259.461.942.443.616.713857.463.5524.871973.6682.7569.889593.793546.3L0.86995260.753.343.741.741.140.740.537.720.00001360.0135416.5337.710.42290.2288.8289.464.644.618.323857.463.5524.871973.6682.7569.897499.0361.654.544.242.241.641.040.338.330.00001360.0135399.6332.19.23290.6289.4289.961.943.817.133857.463.5524.871973.6682.7569.893546.31616.85163.454.242.640.639.939.639.536.710.00001770.0175672.2713.6431.1433.521.924.31294.0290.7292.3103.2109.456.456.629.315007.563.5530.642431.7841.2701.9121215.0128681.1263.854.142.039.939.438.938.536.120.00001770.0175708.8431.124.42295.0291.2293.0108.556.231.725007.563.5530.642431.7841.2701.9127802.7364.053.642.440.339.839.338.536.430.00001770.0175759.9438.426.83294.8290.4292.5116.657.334.135007.563.5530.642431.7841.2701.9137025.6Average 8 GPH60.855.148.245.945.645.344.342.0Pass #2: CopperFlow Rate (GPH)Corrected Flow Rate (GPH)RunInner Tube TC Temperature (deg C)Outer Tube TC Temperature (degC)Heat LoadOverall coefficient of Heat TransferTheoretical CoefficientsInnerFlow Rate (GPH)Exp Q (W)Theo Q (W)Error %Exp U (W/m2K)Theo U (W/m2K)Error %#2#3#6#7RunVol Flow (m3/s)Mass Flow (kg/s)Qin (J)Qin averageQout (J)Qout average% DifferenceAverageRunTa (C) inletTb (C) outletLMTDAin (m2)Aout (m2)Uin (W/m2K)Uin averageUout (W/m2K)Uout average% DifferenceRunDin (m)(D*pi)/4RePrNuhihoUiQQaveAi0.02078159.5149262.4199.6826.91429.4793.7389.12155.851.542.537.110.00000960.0095170.1159.5213.6201.7-11.3-11.71286.5287.6287.00.02070.024328.726.930.729.0-3.418.13E-036.38E-032710.323.5518.751488.1514.8429.552519.449262.4Ao0.024312255.16133843255369.324631253199.5442.775353211569.4592.49254.550.840.736.020.00000960.0095146.3185.9-11.92287.0288.0287.424.626.6-3.922710.323.5518.751488.1514.8429.545191.1Do0.00952516355.5936784459440.598501198299.4059.3063812585701.4891.55355.151.042.837.630.00000960.0095162.1205.6-11.83285.5286.6286.027.429.6-3.932710.323.5518.751488.1514.8429.550076.7Di0.0081281212.98153.248.537.733.710.00001360.0135264.5255.2225.1223.38.06.61288.7288.0288.344.442.832.231.916.013857.463.5524.871973.6682.7569.457405.055369.3L0.80645253.349.137.733.920.00001360.0135236.4213.95.02288.8288.4288.539.630.513.023857.463.5524.871973.6682.7569.451298.1354.549.838.334.230.00001360.0135264.5230.86.83289.4288.8289.044.332.914.733857.463.5524.871973.6682.7569.457405.01616.85154.249.336.733.010.00001770.0175358.0355.6270.3267.914.014.01290.7289.5290.059.759.338.438.121.715007.563.5530.642431.7841.2701.559847.759440.6254.149.036.132.620.00001770.0175372.6255.718.62291.2289.6290.362.136.326.225007.563.5530.642431.7841.2701.562290.5353.649.036.432.630.00001770.0175336.1277.79.53290.4289.6289.956.139.517.435007.563.5530.642431.7841.2701.556183.6

Pass #3: CopperFlow Rate (GPH)Corrected Flow Rate (GPH)RunInner Tube TC Temperature (deg C)Outer Tube TC Temperature (degC)Heat LoadOverall coefficient of Heat TransferTheoretical CoefficientsFlow Rate (GPH)Exp Q (W)Theo Q (W)Error %Exp U (W/m2K)Theo U (W/m2K)Error %#4#5#7#8RunVol Flow (m3/s)Mass Flow (kg/s)Qin (J)Qin averageQout (J)Qout average% DifferenceAverageRunTa (C) inletTb (C) outletLMTDAin (m2)Aout (m2)Uin (W/m2K)Uin averageUout (W/m2K)Uout average% DifferenceRunDin (m)(D*pi)/4RePrNuhihoUiQQaveInner8100.1924728.9899.5921.15430.095.0889.12149.047.037.132.710.00000960.009579.1100.2174.0162.1-37.5-23.71285.1287.5286.20.01650.019416.721.131.329.1-30.3918.13E-036.38E-032710.323.5518.751488.1514.8430.019522.924729.0Ai0.016512178.2376996430911.227000744599.4237.5381995057570.0993.42249.546.736.032.420.00000960.0095110.7142.4-12.52286.7287.5287.023.325.5-4.5222710.323.5518.751488.1514.8430.027332.0Ao0.019416260.6063259834815.803042943899.2554.7823297881702.2792.20349.847.037.633.330.00000960.0095110.7170.1-21.13285.4286.9286.123.430.6-13.3332710.323.5518.751488.1514.8430.027332.0Do0.0095251212.98147.744.633.730.910.00001360.0135174.5178.2157.6153.85.17.31287.2286.9287.036.837.528.327.613.0513857.463.5524.871973.6682.7570.130260.530911.2Di0.008128248.044.933.931.220.00001360.0135174.5152.06.92287.3286.9287.036.827.314.8423857.463.5524.871973.6682.7570.130260.5L0.644525348.745.434.231.530.00001360.0135185.7152.010.03287.7287.1287.339.127.217.8833857.463.5524.871973.6682.7570.132212.81616.85148.044.233.030.710.00001770.0175277.7260.6168.1177.824.618.71288.2286.7287.458.454.830.131.831.9815007.563.5530.642431.7841.2702.337093.534815.8247.544.332.630.120.00001770.0175233.8182.712.32288.1287.4287.749.132.720.1025007.563.5530.642431.7841.2702.331236.6348.044.332.630.130.00001770.0175270.3182.719.43288.6287.4287.956.832.726.9635007.563.5530.642431.7841.2702.336117.3Pass #4: CopperFlow Rate (GPH)Corrected Flow Rate (GPH)RunInner Tube TC Temperature (deg C)Outer Tube TC Temperature (degC)Heat LoadOverall coefficient of Heat TransferTheoretical CoefficientsFlow Rate (GPH)Exp Q (W)Theo Q (W)Error %Exp U (W/m2K)Theo U (W/m2K)Error %#5#6#8#9RunVol Flow (m3/s)Mass Flow (kg/s)Qin (J)Qin averageQout (J)Qout average% DifferenceAverageRunTa (C) inletTb (C) outletLMTDAin (m2)Aout (m2)Uin (W/m2K)Uin averageUout (W/m2K)Uout average% DifferenceRunDin (m)(D*pi)/4RePrNuhihoUiQQaveInner8148.9617728.3999.1655.69763.4292.7089.12147.043.332.728.110.00000960.0095146.3149.0181.9172.7-10.8-7.21287.5288.4287.90.00930.012954.655.748.946.45.5914.57E-033.59E-034818.353.5529.712357.9815.7763.417414.617728.4Ai0.009312208.25668063217414.610435285498.8078.15263106431011.9992.28246.743.032.428.620.00000960.0095146.3150.3-1.32287.5287.6287.554.740.415.0424818.353.5529.712357.9815.7763.417414.6Ao0.012916265.4774722617100.833670685698.45100.230292671246.3491.96347.043.133.328.630.00000960.0095154.2185.9-9.33286.9287.7287.257.750.07.1434818.353.5529.712357.9815.7763.418355.9Do0.006351212.98144.641.030.92810.00001360.0135202.6208.3163.2159.510.813.31286.9286.2286.576.078.244.043.026.6416857.703.5539.413127.21081.81012.016943.917414.6Di0.00457244.941.131.228.420.00001360.0135213.9157.615.22286.9285.9286.380.342.630.7326857.703.5539.413127.21081.81012.017885.3L0.644525345.441.731.528.730.00001360.0135208.3157.613.83287.1286.2286.678.142.529.5236857.703.5539.413127.21081.81012.017414.61616.85144.240.830.728.110.00001770.0175248.4265.5190.0-58.513.3-96.51286.7285.9286.293.3100.251.3-16.629.0418902.333.5548.563853.11333.01246.316002.617100.8244.340.430.137.520.00001770.0175285.0-540.7-322.92287.4276.1281.7108.8-148.4-648.6728902.333.5548.563853.11333.01246.318355.9344.340.730.127.730.00001770.0175263.0175.420.03287.4286.2286.798.647.335.1938902.333.5548.563853.11333.01246.316943.9Pass #5: Stainless SteelFlow Rate (GPH)Corrected Flow Rate (GPH)RunInner Tube TC Temperature (deg C)Outer Tube TC Temperature (degC)Heat LoadOverall coefficient of Heat TransferTheoretical CoefficientsFlow Rate (GPH)Exp Q (W)Theo Q (W)Error %Exp U (W/m2K)Theo U (W/m2K)Error %#6#7#9#10RunVol Flow (m3/s)Mass Flow (kg/s)Qin (J)Qin averageQout (J)Qout average% DifferenceAverageRunTa (C) inletTb (C) outletLMTDAin (m2)Aout (m2)Uin (W/m2K)Uin averageUout (W/m2K)Uout average% DifferenceRunDin (m)(D*pi)/4RePrNuhihoUiQQaveInner831.64340.9590.726.69423.2198.4289.12143.342.331.528.610.00000960.009539.531.6114.7118.6-48.7-59.41285.0286.9285.90.0165
Jeanette Rivera: Jeanette Rivera:Mismas dimensiones que Pipe 30.01948.46.720.721.4-42.418.13E-036.38E-032710.323.5518.751488.1514.8423.2426.2340.9Ai0.01651299.437874536752.9281601286.7920.9530455392558.3096.25243.042.731.528.520.00000960.009511.9118.6-81.82284.7287.4286.02.521.4-79.022710.323.5518.751488.1514.8423.2127.9Ao0.019416343.142.031.328.230.00000960.009543.5122.6-47.63285.0287.0285.99.222.1-41.232710.323.5518.751488.1514.8423.2468.8Do0.0095251212.98142.941.329.527.210.00001360.013590.199.4129.5133.2-17.9-14.71286.6287.3286.919.021.023.223.9-10.113857.463.5524.871973.6682.7558.3681.9752.9Di0.008128243.141.129.327.020.00001360.0135112.6129.5-7.02287.0287.3287.123.723.21.123857.463.5524.871973.6682.7558.3852.4L0.644525342.941.229.527.030.00001360.013595.7140.7-19.03286.6287.4286.920.225.3-11.233857.463.5524.871973.6682.7558.3724.51616.85110.00001770.01750.00.00.00.0ERROR:#DIV/0!ERROR:#DIV/0!1273.2273.2ERROR:#DIV/0!ERROR:#DIV/0!ERROR:#DIV/0!ERROR:#DIV/0!ERROR:#DIV/0!ERROR:#DIV/0!15007.563.5530.642431.7841.2684.50.00.0220.00001770.01750.00.0ERROR:#DIV/0!2273.2273.2ERROR:#DIV/0!ERROR:#DIV/0!ERROR:#DIV/0!ERROR:#DIV/0!25007.563.5530.642431.7841.2684.50.0330.00001770.01750.00.0ERROR:#DIV/0!3273.2273.2ERROR:#DIV/0!ERROR:#DIV/0!ERROR:#DIV/0!ERROR:#DIV/0!35007.563.5530.642431.7841.2684.50.0Pass #6: Stainless SteelFlow Rate (GPH)Corrected Flow Rate (GPH)RunInner Tube TC Temperature (deg C)Outer Tube TC Temperature (degC)Heat LoadOverall coefficient of Heat TransferTheoretical CoefficientsFlow Rate (GPH)Exp Q (W)Theo Q (W)Error %Exp U (W/m2K)Theo U (W/m2K)Error %#7#8#10#11RunVol Flow (m3/s)Mass Flow (kg/s)Qin (J)Qin averageQout (J)Qout average% DifferenceAverageRunTa (C) inletTb (C) outletLMTDAin (m2)Aout (m2)Uin (W/m2K)Uin averageUout (W/m2K)Uout average% DifferenceRunDin (m)(D*pi)/4RePrNuhihoUiQQaveInner897.5563.37-53.9336.56598.8493.8989.12142.339.628.626.510.00000960.0095106.897.683.083.04943012.57.261286.9286.3286.50.0093
Jeanette Rivera: Jeanette Rivera:Mismas dimensiones que Pipe 40.012940.136.622.422.428.314.57E-033.59E-034818.353.5529.712357.9815.7598.869.463.4Ai0.009312118.19973765653.9510140325-119.0944.2922568629741.7594.03242.739.928.526.420.00000960.0095110.783.014.32287.4286.7287.041.522.429.924818.353.5529.712357.9815.7598.871.9Ao0.012916342.040.128.226.130.00000960.009575.183.0-5.03287.0287.2287.028.122.411.434818.353.5529.712357.9815.7598.848.8Do0.06351212.98141.339.227.225.910.00001360.0135118.2118.273.275.04745223.522.351287.3286.5286.844.344.319.720.238.416857.703.5539.413127.21081.8741.754.054.0Di0.004572241.139.02725.620.00001360.0135118.278.820.02287.3286.6286.944.321.235.226857.703.5539.413127.21081.8741.754.0L0.644525341.239.12725.730.00001360.0135118.273.223.53287.4286.6286.944.319.738.436857.703.5539.413127.21081.8741.754.01616.8510.0010.00001770.01750.00.00.00.000000ERROR:#DIV/0!ERROR:#DIV/0!1273.2273.2ERROR:#DIV/0!ERROR:#DIV/0!ERROR:#DIV/0!ERROR:#DIV/0!ERROR:#DIV/0!ERROR:#DIV/0!18902.333.5548.563853.11333.0860.30.00.020.0020.00001770.01750.00.0ERROR:#DIV/0!2273.2273.2ERROR:#DIV/0!ERROR:#DIV/0!ERROR:#DIV/0!ERROR:#DIV/0!28902.333.5548.563853.11333.0860.30.030.0030.00001770.01750.00.0ERROR:#DIV/0!3273.2273.2ERROR:#DIV/0!ERROR:#DIV/0!ERROR:#DIV/0!ERROR:#DIV/0!38902.333.5548.563853.11333.0860.30.0

Flow vs Heat2

K P3 P5 2

K P4 P6 2

Length 2

Profile 2

Flow CalibrationDouble Pipe Heat ExchangerFlow CalibrtionmL/s = 0.952 GPH

Hot sideyxRunFlow rate (GPH)VolumeTimeFlow rate (mL/s)Average Flow rate (mL/s)Corrected Flow Rate (GPH)1636.005.306.796.936.6035.505.256.7636.505.047.242956.005.3510.4710.489.9854.005.3010.1954.505.0510.7931269.505.2213.3113.1512.5269.505.2313.2968.005.2912.8541549.503.2615.1815.5114.7654.003.4115.8451.003.2915.5051861.503.2319.0418.8517.9561.003.1919.1267.503.6718.39Cold sideRunFlow rate (GPM)VolumeTimeFlow rate (mL/s)Average Flow rate (mL/s)1643.05.178.328.5744.05.278.3547.05.199.068.16252336552960.05.1111.7411.9363.55.1912.2459.55.0411.8131269.05.1813.3213.7474.05.2913.9970.05.0313.9241554.53.2017.0316.8654.03.2416.6754.53.2316.8751868.53.0722.3121.4770.03.321.2171.03.420.88

Calibration