During the glass plate production process, blocks with a temperature of 1400°C are produced. These blocks are 5cm thick and measure 1.5m wide and 1m high. If the thermal conductivity of the glass is 1.05 W/m2 and the surrounding air temperature is 550°C and the center of the block remains at 1400 degrees. a. What is the equation of flow dT/dx? b. Which is the function T(x)? Consider that the internal and external temperatures remain constant and calculate the flux from the center of the block to one of its sides. (L=2.5m)

During the glass plate production process, blocks with a temperature of 1400°C are produced. These blocks are 5cm thick and measure 1.5m wide and 1m high. If the thermal conductivity of the glass is 1.05 W/m2 and the surrounding air temperature is 550°C and the center of the block remains at 1400 degrees. a. What is the equation of flow dT/dx? b. Which is the function T(x)? Consider that the internal and external temperatures remain constant and calculate the flux from the center of the block to one of its sides. (L=2.5m)

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.

Chapter6: Forced Convection Over Exterior Surfaces

Section: Chapter Questions

Problem 6.20P

See similar textbooks

Similar questions

A 1:7 scale model simulates the operation of a large turbine that is to generate200 kW with a flow rate of 1.5 m3/s. What flow rate should be used in the model, andwhat power output is expected?(a) Water at the same temperature is used in both model and prototype.(b) The model water is at 25°C and the prototype water is at 10°C.
calculations. A common room at a facility is used by personnel for food consumption and resting (Fig. 2). An air conditioning system is required for providing comfortable temperature of 23°C. You are asked to select the room dimensions (X= 10m, Y=2.4m and Z= 15m) and design a split air conditioning system suitable to meet the requirements for climatic conditions of a humid subtropical climate with long-term annual average high temperature of 26.4°C and minimum low of 16°C. The room can accommodate up to 6 - 12 staff members. The following kitchen appliances are used in the room: coffee machine, 2 microwaves, cooktop and dishwasher. S E COFFEE 128 O FFEE FIGURE 2. Common room layout Z X COFFEE Y
5) Consider a vessel of diatomic nitrogen gas at room temperature. (a) What is the most likely speed of a molecule? (b) How fast does a molecule have to be traveling to be in the top 5%? (Hint: For (a), use DESMOS to make a graph of the Maxwell-Boltzmann velocity distribution and locate the maximum on the graph. For (b), integrate the Maxwell-Boltzmann distribution numerically. See planetcalc.com/5494)
Example(1-13): steam and water flow through 75 mm inside diameter pipe at flow rate of 0.05 and 1.5 m³/s respectivily. If the mean temperature and pressure are 330 K and 120 kpa, what is the pressure drop per unit length of pipe. Where the pipe roughness 0.00015 mm, liquid and gas viscosities are 0.52x10³ pa.s and 0.0133x10-³ pa.s.
Learning Goal: A particle of mass M moves along a straight line with initial speed v₁. A force of magnitude F pushes the particle a distance s along the direction of its motion. 99°F
When a chalk is broken into dust-like particles, the particles take a long time to settle down to the ground when compared to the original chalk although the density of the chalk and the viscosity of air remain the same. The reasons for this are: (i) (ii) (i) (ii) The Reynolds number is very low due to reduced length scale of the dust. The dust particle is much lighter than the chalk. The viscous force is a surface force proportional to the length square while the gravitational force is a body force proportional to the length cube. At very small length scale, length square is much larger than length cube. (iii) (A) (B) The largest animal is found in sea as it requires no energy to support its weight by using hydrostatic principle. However bird has to support its own weight by using Bernoulli principle to create pressure difference while in flight. Bird cannot be very large and there are also fewer species of large bird than small bird. The reasons are: There is less food in the air…
The previous solution makes no sense. Please provide correct handwritten solution. [The answer must he in handwritten format only , Please consider it]
b Estimate the radius of the cylindrically shaped crater that such a comet strikes the Moon. Assume that the crater, of depth 10 km, is formed by heating to 3,500 K, and thus vaporizing, a cylindrical volume of moon rocks. Moon rocks are made of silicates, which have molecular weights of ~ 30 (i.e., m cm°. Ignore the latent heat required to melt and vapourize the rocks, and the energy involved in vapourizing the comet itself. creates when it 30 mH), and mean solid densities p ~ 2 g/ ~
An ESP with a total plate area of 5000 m2 treats 8000 m3/min of air containing particulate matter of essentially one diameter. If the electrostatic force per unit mass cm a particle is 2000 times the force of gravity and the slip-corrected characteristic time, z,for this partidedn-air system is 5.1(10)-6 sec, calculate the efficiency of the ESP,
Specific Heat, Cp Water Thermal Thermal Content, Temperature, T Density, p Conductivity, k Ibm/ft3 Diffusivity, a ft2/s Food %(mass) °F Btu/h-ft.°F Btu/lbm-R Fruits/Vegetables Apple juice Apples Apples, dried Apricots, dried Bananas, fresh 1.51 x 10-6 1.47 x 10-6 87 68 62.4 0.323 0.922 85 32-86 52.4 0.242 0.910 41.6 73 53.4 0.127 1.03 x 10-6 0.650 1.22 x 10-6 1.51 × 10-6 43.6 73 82.4 0.217 0.662 76 41 61.2 0.278 0.856 Broccoli 21 35.0 0.223 | 1.42 x 10-6 Cherries, fresh Figs Grape juice 92 32-86 65.5 0.315 0.952 40.4 73 77.5 0.179 1.03 x 10-6 0.642 1.51 × 10-6 1.51 × 10-6 89 68 62.4 0.328 0.934 Peaches 36-90 2-32 59.9 0.304 0.934 Plums 3 38.1 0.143 | Potatoes 32-158 0-70 65.7 0.288 1.40 x 10-6 0.868 Raisins 32 73 86.2 0.217 1.18 x 10-6 0.592 Meats Beef, ground Beef, lean 67 43 59.3 0.235 1.40 x 10-6 0.802 74 37 68.0 0.272 1.40 x 10-6 0.844 Beef fat 95 50.5 0.110 72 95 73 Beef liver 0.259 0.832 1.18 x 10-6 1.40 x 10-6 Cat food 39.7 71.2 0.188 0.638 Chicken breast 75 32 65.5 0.275 0.850
One model of the glomerular membrane is a microporous membrane in which right cylindrical porespenetrate all the way through the membrane. Assume that the pores have a length of 50 nm and aradius of 3.5 nm. The viscosity of plasma is 0.002 Pa s. The average hydrostatic pressure in theglomerulus is 60 mm Hg, hydrostatic pressure in Bowman’s space is 20 mm Hg and the averageoncotic pressure of glomerular capillary blood is 28 mm Hg.A. Calculate the flow through a single pore assuming laminar flow (use the Poiseuille flowequation).B. How many pores would there have to be to produce a normal GFR?C. If the total aggregate area of the kidneys for filtration is 1.5 m2, what is the density of thepores (number of pores per unit area)D. What fraction of the area is present as pores?
PLEASE BOX YOUR ANSWERS Problem 2 In an experiment conducted in a laboratory, the surface tension (Y) acting on a rotating square plate in a viscous fluid is a function of the external torque (t), plate length (a), area moment of inertia of plate (I), specific weight of the fluid (Y) and angular displacement of the plate (0). Using Buckingham-Pi theorem, find a suitable set of pi terms (in M, L and T primary dimensions). Your final answer should be written in proper functional form. Refer Table 5.1/ page-296 for secondary dimension of the variables.