10 cm thick and 1 m wide long when a steel plate is at temperature Ti = 240 ° C, T0 = 40 ° C It is immersed in the hot oil bath. With sheet Heat transfer coefficient between oil h = 600 W / m2K and p = 7833 kg / m3 for steel , cp = 465 J / kgK, k = 43 W / mK, α = 1.2x10-5 m2 / s.   a)How much the core temperature of the steel plate after time becomes 100 ° C ? b)What is the temperature inside 3 cm from the surface of the steel plate? c)Within this period, per unit length plate what will be the amount of heat that passes?

Q: ASAP,thx Furnace walls are lined with 3 layers of firebrick with a thickness of 6 in (k=0.95…

A:

Q: m, n+ 1 Ay m, n q" (27-L + Tmn+1 + Tm,n-1) + 24" Ar 47 = 0 m, n-1 Case 5. Node at a plane surface…

A:

Q: r surfaces is 22

A:

Q: How important the forced and free convection know as a mechanical engineer?

A:

Q: A house has a composite wall of wood, fiberglass insulation and plaster board, as indicated in…

A:

Q: o that the heat transfer rate is maximum, what is the heat transfer rate from the heat sink?…

A: Now find the optimum fin spacing for a vertical heat sink as follows,

Q: Determine the rate of heat loss per unit length (q), in W/m, and outer surface temperature T,2, in…

A:

Q: .A journal bearing is to be used for a centrifugal pump where the shaft diameter is 50 mm and the…

A: Given that, Shaft diameter = D = 50 mm Bearing length = L = 80 mm Ambient temperature = T∞=20 °C…

Q: A spherical steel tank (k = 15 W/m.°C, thickness-1.5 cm) tank of inner diameter 4.65 m contains ice…

A:

Q: A solid sphere (ρ= 800 kg/m3, cp = 4000 J/kg-K, k = 0.4 W/m-K) of diameter 1 cm is taken out of the…

A: Given: The density of solid sphere = 800 kg/m3 The specific heat capacity, cp = 4000 J/kg.K The…

Q: Q5//answer one of the following branches c jäll al je al A) cast iron pipe (k=75w/m. °C) air flows…

A:

Q: Brass cube "p 8530 kg/m, c = 380 J/kg.°C, k 110 W/m.°C, a = 33.9E-6 W/m.°C", side length=9 mm, are…

A: Option B is correct.

Q: 2. Losses by Natural Convection from diameter and 121.9 mm Cylinder. A vertical cylinder 76.2 mm in…

A: Given:

Q: Wind (v=1.5 m/s) at -10 oC blows at right angle to the surface of a standing student considered…

A: Wind velocity, V=1.5 m/s Wind temperature, Ta=-10oC Diameter, D=25cm=0.25m Length, L=170m Surface…

Q: A vertical cooling fin approximates a flat plate 800 mm in height is.exposed to saturated steam at…

A: Given: A vertical cooling fin approximates a flat plate of x=800 mm. The temperature of saturated…

Q: T. = 310 K The thickness of a wall is 0.07 m. right side of the wall air and T sur = 300 K exposed…

A: given data; ⇒thickness of wall (x)=0.07m⇒external surface temperature of wall right side…

Q: A spherical steel tank (k 15 W/m.°C, thickness=1.5 cm) tank of inner diameter 4.88 m contains ice @…

A:

Q: Convection heat transfer through the plate is 180 w/m?k. Find convection heat transfer coefficient…

A:

Q: 3. A 3 in O.D. aluminum tube (k=133 BTU/h ft°F) has 16 longitudinal fins spaced around its outside…

A: Give data: The outer diameter of the tube, do=3 in. The thermal conductivity of aluminum, k=133…

Q: he To R RI R T = 40 W/m °C. %3D L=1 m, R, = 0.05m; R, = 0.052m; T = 70°C; Teut = 20°C; h = 30 W/m?…

A: Given, L = 1 m R1 = 0.05 m R2 = 0.052 m Tin = 70 oC Tout = 20 oC hin = 30 W/m2 hout = 20 W/m2 Kpipe…

Q: A square pin fin (w=0.6 mm, L-33 mm) is attached to hot surface, Ts-155°C with convection heat…

A: Given:Square pin fin,   w=0.6mm=0.0006m…

Q: AS STOWIT IIT the ske Delow, steam pipe of ue ulanmeter is Insulate u with d layer oI lum sincate.…

A:

Q: 3.8 Determine (i) the pressure drop, and (ii) the convective heat transfer coefficient from hot air…

A: The convective hotness move coefficient is reliant upon the actual properties of the liquid and the…

Q: = 16 W/m.K. The inner diameter and thickness of the pipe are 26 cm and 1 cn espectively. The…

A: Boundary Conditions T( r1 ) = T1 =350oC T( r2 ) = T2 = 28oC dTdr=C1r T(r) = C1 lnr + C2 T( r1 ) =…

Q: Hot Air blows over steel plate with dimension (5000mm * 7.5m)), the steel plate temperature is 22'C,…

A:

Q: A composite wall is exposed to hot combustion gases as shown in the figure below. There is a thermal…

A: Data given: Temperature of the hot gas 2100 C Heat transfer coefficient of the wall A 100W/m2K…

Q: Q5/ A cylindrical storage steel tank with inside and outside diameters of 550 mm and 535 mm,…

A: In general, there are three modes by which heat gets transferred from one place to another. The…

Q: Roof insulation: Insulation of the bare roof with 50 mm thick of polystyrene foam, roof area = 99m?,…

A: The thickness and thermal conductivity of the mediums through which heat is transmitted affect the…

Q: 19.12 A certoain double-pane window consists of two glass sheets, each 80 cm x 80 cm x 0.30 cm,…

A:

Q: A pin fin (L= 38 mm , d = 3.0 mm) attached to a hot surface, Ts = 159°C with a convection heat…

A:

Q: An electric motor is to be connected by a horizontal steel shaft (k 42.56 W/m.K), 25 mm in diameter…

A: According to the given information, the diameter of shaft d is 25mm, the impeller of a pump,…

Q: Given a plaster of paris (PoP) slab with L = 0.052 cm, W = 0.052 cm, and H = 0.0095 cm, what is the…

A: Biot no.is given by the following formula, Bi=h*Lc/K Where h= heat transfer coefficient…

Q: A liquid flows inside a 3-cm diameter pipe, 5 meters long with an entering temperature of 350 °C.…

A:

Q: A 10 cm thick and 1 m wide long steel plate is immersed in an oil bath at T0=40°C when the…

A: Given: L = 10 cm = 0.1 m W = 1 m Ta = 40' C Ti = 240' C h = 600 W/m2 K For steel,  ρ = 7833 kg/m3 Cp…

Q: An electric motor is to be connected by a horizontal steel shaft (k - 42.56 W/m.K), 25 mm in…

A: Given: k=42.56W/mkT0=540°CT∞=27°CTL=52°Ch=40.7W/m2Kd=0.025m Solution: Since the diameter of the fin…

Q: A domestic refrigeNator with inner dimensions of 0.7 m by 0.7 m at the base and height 1 m was…

A: Note:As per our guidelines we are supposed to answer only one question. Kindly repost other…

Q: 2. Air at 20° blows over a hot plate 50X60 cm made of carbon steel maintained at 220°. The…

A: Given, Temperature of air = Atmospheric temperature = Ta = 20 oC Area of the plate = A = 50 cm x 60…

Q: An iron plate 2 cm thick has a cross-sectional area of 5,000 cm2. One of the faces is at 150 ◦C and…

A: Consider the diagram as shown below for the given system.

Q: Heat transfers Water (T= 10 C, , k=0.644 W/m.C, υ = 5.54× 10^-7 m2/s, Pr=3.55), flow over plate 1m…

A:

Q: A food product with 80% water content in a 10 cm diameter can be frozen. Mass of the product type is…

A: Given data, x = Moisture contains in the food product = 0.8 a = Diameter of the food product = 0.1 m…

Q: Q3 - The rear window of an automobile is defogged by passing warm air over its inner surface If the…

A:

Q: Q2 A cooling system constructed from aluminum heat sink [k-239 W/m. KJ is shown below. The thickness…

A:

Q: Hot water (cp=4.18 kJ/kg.K, m = 2.8 kg/min) flows inside a tube (inner diameter = 9 mm, Length = 93…

A: From the given data, heat flux on the tube outer surface is (q") = 204×103 W/m2. Touter = 93 oC and…

Q: A certain liquid flow inside a 4 cm diameter pipe, 6 meter long with an entering temperature of 350…

A: Given data: di=4 cmL=6 mT=350°CTw=575°Cm˙=60 kg/minPr=0.003μ=0.003 N.s/mk=6.2 w/m-k, Cp=0.41 kj/kg-k…

Q: (1) A copper wire 0.8 mm diameter at 150°C is suddenly dipped into water at 35°C. If h=85.5 W/m²K,…

A:

Q: 1 - A square chip, with side w = 5 mm, operates under isothermal conditions. The chip is positioned…

A:

Q: B- A Blood warming device contains a 20 mm diameter copper pipe is used to carry warm water, the…

A:

Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.