Output Summary
Released to the following HTRI Member Company: ls ls 2017-6-13 13:08 SN:Hale Waihona Puke FriendslPage 1
Xace E Ver. 5.00
322 Units
Rating-Horizontal economizer countercurrent to crossflow See Data Check Messages Report for Warning Messages. See Runtime Message Report for Warning Messages. Process Conditions Outside Tubeside Fluid name Fluid condition Cond. Vapor Sens. Liquid Total flow rate (kg/s) 1.400 1.092 Weight fraction vapor, In/Out 1.000 0.98637 0.000 0.000 Temperature, In/Out (Deg C) 180.00 40.00 35.00 90.00 Skin temperature, Min/Max (Deg C) 39.24 131.47 37.36 108.33 Pressure, Inlet/Outlet (bar) 3.200 3.176 0.000 0.000 Pressure drop, Total/Allow (bar) (bar) 0.024 0.000 0.447 0.000 Midpoint velocity (m/s) 7.05 0.77 - In/Out (m/s) 0.74 0.79 Heat transfer safety factor (--) 1 1 Fouling (m2-K/W) 0.000170 0.000170 Exchanger Performance Outside film coef (W/m2-K) 315.48 Actual U (W/m2-K) 93.931 Tubeside film coef (W/m2-K) 5130.40 Required U (W/m2-K) 172.321 Clean coef (W/m2-K) 141.119 Area (m2) 120.324 Hot regime Cond. Vapor Overdesign (%) -45.49 Cold regime Sens. Liquid Tube Geometry EMTD (Deg C) 12.1 Tube type High-finned Duty (kW) 251.421 Tube OD (mm) 9.900 Unit Geometry Tube ID (mm) 8.700 Bays in parallel per unit 1 Length (m) 0.500 Bundles parallel per bay 1 Area ratio(out/in) (--) 19.9399 Extended area (m2) 120.324 Layout Staggered Bare area (m2) 6.867 Trans pitch (mm) 20.000 Bundle width (m) 0.519 Long pitch (mm) 15.500 Outlet Nozzle Inlet Number of passes (--) 34 1 34 Number (--) 1 Number of rows (--) 833 Diameter (mm) 26.64 26.64 Tubecount (--) Velocity (m/s) 1.97 2.03 Tubecount Odd/Even (--) 25 / 24 R-V-SQ (kg/m-s2) 3857.62 3972.41 Tube material Copper Pressure drop (bar) 0.021 0.014 Fin Geometry Fan Geometry Type Rectangular No/bay (--) 2 Fins/length fin/meter 560.0 Fan ring type Straight Fin root mm 9.900 5.050 Diameter (m) 0.260 Height mm Ratio, Fan/bundle face area (--) 0.41 Base thickness mm 0.150 Driver power (kW) 1.05 Over fin mm 19.867 Tip clearance (mm) 9.525 Efficiency (%) 85.8 Efficiency (%) 65 Area ratio (fin/bare) (--) 17.523 Material Aluminum 1060 - H14 Airside Velocities Actual Standard Thermal Resistance, % Face (m/s) 2.25 Maximum (m/s) 9.90 Air 29.79 Flow (100 m3/min) 0.350 Tube 36.50 Velocity pressure (Pa) 35.29 Fouling 33.43 Bundle pressure drop (Pa) 2338.95 Metal 0.28 Bond 0.00 Bundle 98.66 Airside Pressure Drop, % Louvers 0.00 Ground clearance 0.00 Fan guard 0.00 Hail screen 0.00 Fan ring 1.34 Fan area blockage 0.00 Steam coil 0.00