Hot oil ( Cp=2200 j/kg.°C) is to cooled by water (Cp=4180 j/kg.:°C) double pipe [shell- tube] heat exchanger and the tube thin walled made of copper with a outlet Diameter = 35 mm while the inlet diameter = 20 mm. The overall heat transfer Coefficient is (550 w/m?.°C), water flow at a rate of (3325 kg /hr) and the oil flow at a rat of (3425 kg /hr) . the water enter at [18 --52°C ] and the oil enter at [ 160 °C 7. Determine : (1) rate of heat transfer (2) length of the heat exchanger

Hot oil ( Cp=2200 j/kg.°C) is to cooled by water (Cp=4180 j/kg.:°C) double pipe [shell- tube] heat exchanger and the tube thin walled made of copper with a outlet Diameter = 35 mm while the inlet diameter = 20 mm. The overall heat transfer Coefficient is (550 w/m?.°C), water flow at a rate of (3325 kg /hr) and the oil flow at a rat of (3425 kg /hr) . the water enter at [18 --52°C ] and the oil enter at [ 160 °C 7. Determine : (1) rate of heat transfer (2) length of the heat exchanger

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter10: Heat Exchangers

Section: Chapter Questions

Problem 10.32P

See similar textbooks

Similar questions

Water flowing in a long, aluminum lube is to be heated by air flowing perpendicular to the exterior of the tube. The ID of the tube is 1.85 cm, and its OD is 2.3 cm. The mass flow rate of the water through the tube is 0.65kg/s, and the temperature of the water in the lube averages 30C. The free-stream velocity and ambient temperature of the air are 10m/sand120C, respectively. Estimate the overall heat transfer coefficient for the heat exchanger using appropriate correlations from previous chapters. State all your assumptions.
Heat transfer problem.In a counter flow heat exchanger, water, flow rate 0.05kg/s, enters at 400K and leaves at 330k. The water is cooled by air that enters at 0.75 kg/s and 300K. The overall heat coefficient is 200 W/m2K. Assume air outlet is 320k only for evaluating the properties of the air. You can use saturated liquid water properties (a).what is the air outlet temperature.(b)log mean temperature difference (c)required heat transfer surface area.
Plz Answer this ASAP The diameter of the tube is 25 mm. The specific heat of water is 4.18 kJ/kg.°C. The overall heat transfer coefficient is 0.7 kW/m².°C. 1.Heat exchanger effectiveness (E) 2.NTU 3.Required length of tube
YOuTube Çevir Omail S Community Downl... A Haritalar Okuma listesi iş İÇİN Giriş yap 口4 INGİLİZCE Cold water entering an opposing flow heat exchanger at a flow rate of 0.6 kg/s at 20 oC (cp =4180 J/kg.K) with a flow rate of 0.75 kg/s of oil (cp 2200 J/kg.K) it is used for cooling from 110 OC to 85 oC. If the total heat transfer coefficient is 800 W/m2.lf K, What is the heat transfer area of the heat exchanger? Çeviri yap: Google Bing
5) During an experiment, a plate heat exchanger that is used to transfer heat from a hot-water stream to a cold-water stream is tested, and the following measurements are taken: Hot water Cold water stream stream 38.9 Inlet temperature, °C Outlet temperature, "C Volume flow rate, L/min 14.3 27.0 19.8 2.5 4.5 The heat transfer arca is calculated to be 0.0400 m. (a) Calculate the rate of heat transfer to the cold water. (b) Calculate the overall heat transfer coefficient. (c) Determine if the heat exchanger is truly adiabatic. If not, determine the fraction of heat loss and calculate the heat transfer efficiency. (d) Determine the effectiveness and the NTU values of the heat exchanger. (Answers: (a) 1724 W (b) 3017 Wiw C (c) the heat exchanger is not adiabatic so heat loss 16.4% and heat transfer efficiency 83.6% (d) effectiveness 44.4% and NTU 0.697) Hot water 38.9°C 19.8°C Cold water 14.3°C 27.0°C
Concentric tube heat exchanger (tubular or tube in tube) is used for a large industrial gas turbine. The dimensions and values are given. One of the steps is not required to find the required length of the HX, if the oil leaves at 60 C? Oil and water inlet temperatures are 100 and 30 C, respectively. Thermal entry length to validate the steps O None of the above Log mean temperature difference Reynolds number, Prandtl number and Nusselt number O Overall heat transfer coefficient
Pnoblem # 20. Ugi ng hot water C reow rate = 8.28 m³ Ih , mlet tenpenature= 155,39 °F), Ca Hy O or 221°F, outhet temperature ethanol is being he ated rom 98. 6 °F C rade = 12-6 m3 /h 98. 6 °F ( Hlow rade = 12-6 through a shell and fube 1-2 pass heat exchanger. heat ņ CoHG O = 1.63 B tu llb oF capacity %3D heat traws fer coef ficie nt Uo = 363, 99 8tu h ft"F over all %3D Solve for for heat exchanger area recquired outlet temperature if heau trans fer raste of ethanol = 5.810 Watts %3D C) , , log mean tmperatue this heat exehanger. me an temperature diffe rence difference of corecti on factor
Steam condensing at 120°C (h =2203 kJ/kg) on the shell side of (1 shell and 12 thin- walled tubes) heat exchanger. Water (18 °C, C_ =4180 J/kg-°C) enters the tube @ 3.3 kg/s and the temperature difference between fhe two Uuits at the exit is 55°C, assume LMTD correction factor of 1.0, for each tube: length =2.7 m, diamieter = 2.4 cm. What is the rate of condeusation of steam (kg/inin) Select one OA 17.66 OB.21.37 OC. 13.77 OD. 15.72 OE 1960
PLZ I want full answer with all solution steps A heat exchanger is to be designed to heat 32/68 mixture of ethylene glycol and water from 24 °C to 55 °C by a hot water stream from 79 °C to 42 °C. Flow rate of cold stream is 20 kg/s. Inlet pressure for both stream is 50 psi and the maximum pressure drop of 10 psi for cold stream and 8 psi for hot water are permissible. Report valid assumptions made for the design and give required justification. Estimate i) Heat Transfer, Corrected LMTD, ii) Tube bundle diameter (Using TEMA standards and Codes) and Tube cross sectional area iii) Heat transfer coefficient iv) Overall heat transfer coefficient v) Pressure Drop (Shell side & Tube Side) note: Assume any values for the missing data
1- For the following design conditions:- Condenser heat load (Qc) = 293 MW Condenser Pressure (Pcond) = 0.06 bar Cooling Water inlet temperature (tw,) = 25 C° Cooling Water velocity (Vw) = 2 m/s Number of Passes (N) = Single Tube Diameter (D) Tube Length (L) = 15 m Tubes Cleanliness factor (Fclean) = 0.85 Overall heat transfer coefficient (U,) = 4000 W /m²C°. Calculate the following:- = 25 mm a. Condenser Surface area b. Cooling water mass flow rate c. Condenser effectiveness
Below data was obtained from an experimental activity for a parallel pipe heat exchanger. Arrangement: counterflow (cold fluid in annular and hot fluid in tube). Mass flow rate: - Hot fluid: 1.03 kg/s - Cold fluid: 0.91 kg/s Temperatures: - Hot fluid inlet (Th.1): 80.5 +/- 10% °C - Hot fluid outlet (Th2): 64.0 +/- 10% °C - Cold fluid inlet (Te1): 20.0 +/- 10% °C - Cold fluid outlet (Tc2): 41.0 +/- 10% °C Assume cp constant and equal to 4.2 kJ/kg-K. 1. State assumptions (at least 9 unique ones) and include references. 2. What is the log mean temperature difference in °C? 3. What is the heat transfer rate on the cold side in kW? Heat added or lost on cold side? 4. What is the heat transfer rate on the hot side in kW? Heat added or lost on hot side? 5. What is the effectiveness of the heat exchanger for the given conditions? 6. Calculate the propagation of uncertaintv in kW for part 3 (heat transfer rate on the cold side) and part 4 (heat transfer rate on the hot side).
A heat exchanger with an effectiveness of 75 percent is used to heat 5 kg/s of water from 2. ( 50 °C with condensing steam at 1 atm. Calculate the area for U = 1200 W/m2.°C. Suppose fouling occurred on both the tube and shell side with the following fouling factors, Rwater = 0.0002 m2-°C/W, and Risteam = 0.00009 m2. °C/W, what will be the new exiting temperature of the water?