MET 214NATURAL CONVECTION SYSTEMSASMod-3aAssignment Sheets1. Fill in the blanks.a. All the resistance to transmission of heat between a flowing fluid andthe body containing the fluid is due tob Laminar flow of a fluid is encountered at Re2100.c Turbulent flow of a fluid is encountered at Re4000.2 List the functional relationships between Nusselt number (Nu), Grashotnumber (Gr), Reynolds number (Re) and Prandtl number (Pr) for naturaland forced convection.3. List the equations giving the following dimensionless groups used tocorrelate convection heat transfer.a. Reynolds number Re=& Prandt numberPr=C Grashof numberGrDd Nusselt numberNu =4. (True or False) In the application of the dimensionless groups in (1) above,any system of units may be used as the final result will permit ll unitsdisappear by cancellation5. List the empirical relationship used to obtain the average Nusselt number(Nu) for a fluid flowing in a tubea. under laminar flow conditionsh under turbulent flow conditions6. Air at 150°C is heated as it flows through a tube with a diameter of 5 cm at avelocity of 5 m/s. Calculate the heat transfer per unit length of tube if aconstant heat flux condition is maintained at the wall and the walltemperature is 54'C above the air temperature, all along the length of thetube. The properties of air at the bulk mean temperature are as follows:

Answered: Image /qna-images/answer/3fd15b14-a8ff-4877-8d1c-8495f02ffb61.jpg

1. Fill in the blanks. a. All the resistance to transmission of heat between a flowing fluid and the body containing the fluid is due to b Laminar flow of a fuid is encountered at Re 2100. c Turbulent flow of a fluid is encountered at Re, 4000

1. Fill in the blanks. a. All the resistance to transmission of heat between a flowing fluid and the body containing the fluid is due to b Laminar flow of a fuid is encountered at Re 2100. c Turbulent flow of a fluid is encountered at Re, 4000

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.

Chapter7: Forced Convection Inside Tubes And Ducts

Section: Chapter Questions

Problem 7.21P

See similar textbooks

Similar questions

Kısa Sınav:HEAT TRAN X b heat transfer | bartleby x b Search results for 'hea X O WhatsApp W Reynolds sayısı - Vikip x E Thermal entry length X * Reynolds Number Cal x i uzemoys.ogu.edu.tr/courses/10422/quizzes/49234/take/questions/368299 E Uygulamalar G Google O Takip Ediliyor - Twit. O YouTube O Facebook O Eskişehir Osmangaz. KK MM Canvas'ta Oturum AÇ u Online Kurslar - Her... k Şekerbank zumba Kariyer Adam E Okuma listesi ev • Sınav başladığınız andan itibaren etik ilkelere uyacağınızı beyan ve kabul etmiş olmaktasınız. esuzem Başarılar dilerim. Prof. Dr. Zekeriya ALTAÇ A refrigerated compartment of a truck is H=2.4-m high and L =6.6-m long. On a hot summer day, it is parked inside of a storage warehouse at T=35°C. The exterior surface of the compartment is maintained at a uniform T=26°C temperature. The warehouse can be assumed quiescent. Find the steady rate of convection heat loss (in W) from only one-side of the compartment. (Use Churchill-Chu correlation if necessary.)…
Water going into a pipe with a tempeture of T1 and going out T2 . ambient tempeture is T0. flow rate q. Develop an expression for T2 ( based on heat transfer) Length of the pipe Lh0 - convective heat transfer coefficient of the airhW -convective heat transfer coefficient of the waterk- pipe thermal conductivity (W/m·K)d – pipe diameter Use any other varilable that you need and can be found online easily .
Topic: Heat transfer Completely solve and box the final answer. 6. Water flows at 5m/s is passed through a tube of 2.5 cm diameter, it is found to be heated from 20degC to 60degC. The heating is achieved by condensing steam on the surface of the tube and subsequently the surface temperature of the tube is maintained at 90degC. Water properties are as follows: density=995kg/m3, kinematic viscosity=.657x10-6 m2/s, Pr=4.43, k=.628W/mK, cp=4178J/kgK. What is the heat absorbed by the water?
A convection problem has a Nusselt number equai to 10. where the contribution of diffusion is normalised and set equal to a value of 1.0. Select the correct statementis): | The ratio of advection to diffusion is 9. The ratio advection to convection is 10 The ratio of convection to diffusion is 10. The ratio advection to convection is 9. The ratio of advection to diffusion is 10.
Topic: Heat transfer Completely solve and box the final answer. 5. Water flows at 5m/s is passed through a tube of 2.5 cm diameter, it is found to be heated from 20degC to 60degC. The heating is achieved by condensing steam on the surface of the tube and subsequently the surface temperature of the tube is maintained at 90degC. Water properties are as follows: density=995kg/m3, kinematic viscosity=.657x10-6 m2/s, Pr=4.43, k=.628W/mK, cp=4178J/kgK. Find the thermal coefficient.
In a particular engineering application involving airflow (u) over a surface (length in the direction of the flow is L), the temperature distribution of the airflow T(x, y) is measured and can be approximated by the following expression: Tf(x,y)-Ts 1- exp(-º 0.0332 Re2Pr¹/3 = y), where x is the coordinate from the leading edge of x Too-Ts the surface and parallel to the flow direction, while y is the coordinate perpendicular to the surface. Ts is the temperature of the surface and Too is the temperature of the moving fluid, and both are constants. Rex is the Reynolds number with the characteristic length of.x, and Pr is the Prandtl number. Assume uniform properties in the fluid field (thermal conductivity ks, kinemati viscosity vs, etc.). (a) Based on the expression given above, derive the derivative of the fluid temperature (the slope) with respective to y, then find the derivative at the surface (x, y=0), i.e., ду TI at y=0 (b) Based on the derivation of (a), write the expression of…
Describe the process of internal flow convection heat transfer in an annular tubeconcentric and draw
Questions: 1. Explain the physical meaning and equation of Reynolds number, Nusselt number, Biot number, Prandtl number ?
Example(1-14): mixture gas and liquid flow through 0.02 m inside diameter pipe at total flow rate of 0.2 kg/s. if the gas weight fraction is 0.149 what is the pressure drop per unit length of pipe. Where the pipe roughness 0.00015 mm, liquid and gas viscosities are 2x103 pa.s and 1x10-5 pa.s respectively. finaly the liquid and gas densities are 1000 kg/m³ and 60 kg/m³ pa.s respectively.
Completely solve and box the final answer. Write legibly 2. Calculate the convective heat transfer in KW from air to the circular tube 7.7 meter long with an inside diameter of 127.7 mm. Tube’s temperature along the entire length is 27.7ºC. The average temperature of hot air flowing through the tube is 127.7ºC. Convective film coefficient is 27.7 W/m2-ºK.
Mass flow rate of hot fluid is 0.007 kg/s. Convection heat transfer coefficient of hot fluid stream is 1000 W/m?.°C. Thermophysical properties are given as follows. Hot fluid; c, = 5000 J/kg.°C Water; dynamic viscosity, µ = 0.001 Pa.s; Prandti number, Pr = 6.14; thermal conductivity, k = 0.607 W/m.°C; density, p = 1000 kg/m³; specific heat c, = 4200 J/kg.°C. Neglecting conduction resistance of the pipe, calculate heat exchanger effectiveness (ɛ), heat transfer rate (Q in J/s), outlet temperatures of the hot fluid (Thout) and water (Tw.out) for varying mass flow rate values of water provided below. Mass flow rate of water, m (kg/s) 0.0025 0.01 0.025 0.05 0.075 0.1 Plot heat exchanger effectiveness (ɛ), heat transfer rate (Q in J/s), outlet temperatures of the hot fluid (Thout) and water (Tw.out) as a function of water mass flow rate (m .). Comment on the results. Hot fluid in (65 °C) Water Water in (25 °C) out d = 0.5 cm Hot fluid out L= 5 m
LTE I. 1 A:IY Doc Apr 10 2022 04.23.PDF 10 jo 10 Hw a solid a pe. a vertical axis with agulev Pi I a fluid rotatad velucity (), Theopressure vise (P) in a radial direction depends upon w, v, and f. obtain a form uf equationfor P. 92 the Pressare difference oP in a pipe of diameter Dand length (L) due to Viscous flow depend viscosity (h) and density (S) - obtaind évpression tOP? the Velocity U. on I The officengy of from depends Niscesity ) ,angular velocity (w). diameter of retor (D) and the dischargeO - Express the efficiency in terms of dimensionless. density ) . dywamic on Qus A fluid flow situaton depends the velocity (V), the on density several limear dimension , h,h2. pressure drep DE) » gravity (o), Viscosity As Susface tension (@). and bulk mo dulus of elasticity k. Apply dimen sional analysis. to these variables d AAAA