An experiment was conducted to measure thermal  conductivity of a formulated food. The measurement was  made by using a large plane plate of the food material, which  was 5 mm thick. It was found, under steady-state conditions, that when a temperature difference of 35°C was maintained  between the two surfaces of the plate, a heat-transfer rate per  unit area of 4700 W/m 2 was measured near the center of either  surface. Calculate the thermal conductivity of the product, and  list two assumptions used in obtaining the result.

Q: Plot the temperature distribution along the fin using the following data: k = 168 W/m.K, h = 12…

A: Given Data: k=168 W/m-Kh=12 W/m2-Ka=0.05 mb=0.01 m   To Find: Temperature distribution plot.

Q: Two heat reservoirs with respective temperatures of 325 and 275 K are brought into contact by an…

A: Given data: T1=325 KT2=275 KL=200 cmA=24 cm2k=79.5 W/m.K Need to determine the heat flux between the…

Q: 50 W/m2 . K. If the dimensions of the brick are 0.06 m × 0.09 m × 0.20 m, determine the temperature…

A:

Q: A 1.69 m wide by 1.06 m high metal plate must be insulated to prevent contact burn injuries.  If the…

A:

Q: section radius of a bar of metal of length L and uniform coefficient of thermal conductivity k is…

A:

Q: A pipe has inside diameter of 4 cm and wall thickness of 10 mm. At the inside surface of the pipe,…

A:

Q: Consider a thin cylindrical one-dimensional cable with constant thermal properties and constant…

A: Solution: To Derive:

Q: A steam pipe, made of copper, has an inside diameter of 5 cm and an outside diameter of 6.2 cm. To…

A:

Q: A typical exterior frame wall (made up of 60 mm × 120 mm studs) of a housecontains the materials as…

A: Given,  inside room temperature , Ti = 21* C outside temperature , To = - 6* c. exposed area of the…

Q: An isothermal sphere 3 cm in diameter at 80°C is embedded in a large clay region. The temperature of…

A: Disclaimer: “Since you have asked multiple questions, we will solve the first question for you i.e…

Q: A heat conducting rod, 0.30 m long, is made of an aluminum section that is 0.10 m long, and a copper…

A: A heat conducting rod, 0.30 m long, is made of an aluminum section that is 0.10 m long, and a copper…

Q: 3. Consider a plane composite wall that is made of two materials of thermal conductivities ka = 205…

A:

Q: GROUB C Example 1 A 15 mm diameter and 5 m long electric wire is tightly wrapped with 2 mm thick…

A: Given:Diameter ofwire,D=15mm=0.015mSo radius of wire,r1=D2=0.0152=0.0075mLength of wire…

Q: A composite wall is made up of an external thickness of brickwork 110mm thick inside which is a…

A:

Q: wo heat reservoirs with respective temperatures of 325 and 275 K are brought into contact by an iron…

A: Given   Thermal conductivity, k = 79.5 W/m K              Temperature, T1 = 325 K…

Q: A temperature sensor may be modeled as a sphere having a thermal conductivity of 91 W/m-K, a density…

A:

Q: As shown in the figure, a 100 W/m² heat flux is applied to one side of the slab having thickness of…

A: q" = 100 W/m2L = 10 cm = 0.1 mk = 1 W/m.Kh = 10 W/K.m2To find temperature at L = 8 cm = 0.08 m

Q: Example 1 A 15 mm diameter and 5 m long electric wire is tightly wrapped with 2 mm thick plastic…

A:

Q: A wall is made up of two layers of bricks each 100mm thick with a 50mm air space between them the…

A:

Q: An industrial cold room has four 200 mm thick walls made of concrete. The walls are insulated on the…

A: The objective of the question is to understand the relative temperatures of the internal and…

Q: A cubical piece of heat-shield-tile from the space shuttle measures 0.17 m on a side and has a…

A: a) Given, A cubical piece of heat-shield-tile from the space shuttle. Thermal conductivity of the…

Q: A slab of meat wc is 25.4 mm thick originally at a uniform temperature of 10C is to be cooked from…

A: Write the given data. Slab thickness, x=25.4 mm=0.0254 mSlab temperature at top, Tslab=10 °CSlab…

Q: The cross section radius of a bar of metal of length L and uniform coefficient of thermal…

A: Given: Length = L Thermal conductivity = k r = (1 +x)1/2 ∆T=TH-TL

Q: An industrial cold room has four 200 mm thick walls made of concrete. The walls are insulated on the…

A: The objective of the question is to understand the heat transfer through the composite wall of a…

Q: An industrial cold room has four 200 mm thick walls made of concrete. The walls are insulated on the…

A: The objective of the question is to determine the heat energy gained per hour through all 4 walls of…

Q: The oven of a stove must have a sufficient insulation so that the surface temperature of the stove…

A: For solution refer below images.

Q: A wall 0.12 m thick having a thermal diffusivity of 1.5x10-6 m²/s is initially at a uniform…

A: To Find:the temperature distribution.Given:the thickness of the wall is the thermal diffusivity of…

Q: A 30 mm diameter copper sphere and a 30 mm copper cube are both heated in a furnace to 923 K. They…

A:

Q: The two surfaces of a 1.0-cm-thick plane wall are at 10°C and 45°C, and the heat transfer rate is…

A: Thickness of the surfaceTemperatures:Heat transfer rate

Q: How can you find the thermal conductivity of a metal bar in experimentally?

A: Hi and thanks for the question. Since you have asked multiple questions, we will solve the first…

Q: The rear window of a car is defrosted by the passage of warm air on the internal surface. If the…

A:

Q: wall having a thermal conductivity of vity 0.9 W/mK. If the heat rate is to b

A: given:thermal conductivity of composite structural k=0.3W/mKthickness t=100mmhermal conductivity of…

Q: A temperature difference of 85oC exists across a fibreglass insulation layer 13 cm thick, for which…

A: Given Data K=0.035 W/mK Thickness, t=0.13m Temperature difference, ∆T=85°C

Q: Consider a wall that is 5 m high, 8 m long, and 0.22 m thick. The thermal conductivities of the…

A: Given data as per the question The temperature at entry =3000 c The temperature at the outer surface…

Q: A dormitory at a large university, built 50 years ago, has exterior walls constructed of L, =…

A: To determine the heat flux through the original and retrofitted walls, we will use the formula for…

Q: Determine the overall heat loss and the temperature profile at each interface of the following…

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.