a slab of thickness the surface kept at 375K and other at 270k find the thermal conductivity of copper if it has net flux of 1.55

Q: a. A slab of thermal insulator is 100 cm² in cross section and 2 cm thick. Its thermal conductivity…

A: Given Cross-sectional area = 100 cm2 Thickness = 2 cm Thermal conductivity = 2.4 × 10-4 cal(s cm C)…

Q: A thin plate of linear elastic materials (E v = 0.25) is in plane stress (o, = Txz = Tyz = 0). The…

A: Given that, Modulus of elasticity of the material, E=200 GPa,Kinematic viscosity of the material,…

Q: Find the temperature at r = 0.5 cm after 75 seconds of exposure.

A: Find the temperature at r = 0.5 cm after 75 seconds of exposure.

Q: In this problem you will estimate the heat lost by a typical house, assuming that the temperature…

A: Given data, Inside temperature of the house, Tin = 20 °C Outside temperature of the house, Tout = 0…

Q: A refrigeration storage is supplied with 10,000 kg of fish at a temperature of 20°C. The fish has to…

A: Given: Mass of the fish is 10000 kg. Initial temperature of the fish is 20C. Final temperature of…

Q: The inner and outer radii of a hollow cylinder are 15 mm (r,) and 25 mm (r, ), respectively. The…

A:

Q: Consider an insulated pipe exposed to the atmosphere, then the critical radius of insulation:

A:

Q: Q1) A laser slab with thermal conductivity of 5 W/m. K, thickness of 2 cm, has a uniform heat…

A: Fourier's law Fourier's law The law of heat conduction, also known as Fourier 's law, states that…

Q: The surface temperature of a heater with a diameter of 50 mm in a horizontal position is 40°C. This…

A: Natural convection, known also as free convection is a mechanism, or type of mass and heat…

Q: Heat is conducted through a slab composed of parallel layers of different conductivities, 0.0050 and…

A:

Q: (a) The coefficient of thermal conductivity of zinc is two times that of copper and the length of…

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Q: The resistance of a copper wire is (0.92 Q) at a temperature of (4 oC). At what temperature will be…

A:

Q: A 4-inch insulated arctic pipe is used for a construction camp. The lake source is 1500 meters away.…

A:

Q: 2. A rod that is 1.5 m long is made up of 0.75 m copper and 0.75 m aluminum of equal cross-…

A:

Q: A finned surface has been added to cool an electronic part. The surface temperature of the…

A: Given, T=60°C h=40 W/m2K k=180 W/mK As, fin is of finite length and loses heat by convection from…

Q: (a) The coefficient of thermal conductivity of zinc is two times that of copper and th Zinc rod,…

A: Giventhermal conductivity of Zinc =2×thermal conductivity of copperlength of copper =2×length of…

Q: 31_The material with the lowest conductivity factor is Select one: a. iron b. wood c. brass d.…

A: As per our company rule we are asked to solve 1 question or 3 subparts only..... I am solving 3…

Q: There is a long cylinder inside an oven and we are using lumped capacitance method to find the…

A: Lumped capacitance method - In this method, the thermal system is reduced to a number of discrete…

Q: A resistance heater is placed inside a rigid insulated tank containing 0.25 kg of nitrogen for the…

A: Mass of nitrogen in the tank = 0.25 kgThe value of current = 0.3 AmpsThe value of resistance of…

Q: A plane wall is 2m high and 3m wide and is 20cm thick. It is made of a material that has a thermal…

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Q: An one end of a solid object with length L has a temperature of T1 and the other end has T2.…

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Q: 2. Calculate the energy transfer rate in kilowatts for the problem no. 1 if the given heat transfer…

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Q: a) A house walls that are 19 cm thick and have an average thermal conductivity four times that of…

A: Solution (a) Given data: The thickness of the house walls, t = 19 cm. The surface area of the…

Q: i. Derive the linear and quatratic approximation of the below resistance temperature…

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Q: In shown figure the aluminum is subjected to a thermal stress where T₁ is 15.786 deg. C and T2 is…

A: Given Data The thermal coefficient of aluminum is:α=23.589×10-6 The area of aluminum is:\AAl=17.482…

Q: heat generation in the turning of Titanium alloy Ti-6AL-4V) and it'a problems.

A: Firstly, heat is produced within the primary distortion zone due to plastic work done at the shear…

Q: A drainage networks of pipes need to be installed for irrigated area has impermeable layer at depth…

A:

Q: In steady state condition, the lateral surfaces of the plate are insulated, and the bottom surface…

A: Fourier's Law of conduction: The law states that the rate of heat transfer by conduction in a given…

Q: A hot water flowing in a 50 mm inside diameter, 60 mm outside diameter pipe have a temperature of…

A:

Q: A long copper fin (k = 380 W/mK), whose length is 610 mm and diameter 6 mm is subjected to an…

A: The answer is given below

Q: PROBLEM 08 A 1-inch diameter wire of 10-ft length (which has an internal resistance of 3 kQ, and…

A: d=1 inch= 25.4×10-3 ml=length=10 ft=3.05 mTmax=2300°CK= 300 W/m-C Q=2.02×108 W/m3

Q: A 15m copper wire is cooled from 40 to -9°C. Calculate the change in length due to the change in…

A: Given data L=15 m∆T=40°c--9°c=49°c

Q: Heat transfer coefficient h, Too senviron ment te mperature T: To Base temperature

A:

Q: T, 1000 K 350 K Heat flow 6k 4k Heat transfer through a composite wall of two sections, each having…

A: Given, Thermal conductivity of the left wall = k1 = 6k Temperature of the left surface = T1 = 1000 K…

Q: inner radius ri, outer radius r0, thermal conductivity k, according to this for the thermal…

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Q: A 2.5 mm diameter conductive core withstands a tensile stress of 0.5 kg/mm2 for 1 hour without…

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Q: Thermodynamics In a solid sphere of 0.2 m diameter, heat is generated at the rate of 1.2 x 106…

A: Given:d=0.2 mq=1.2*106 W/m3Tc=300°Ck=50 W/m.k

Q: A spherical shaped vessel of 1.2 m diameter is 100 mm thick. Find the rate of heat leakage, if the…

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Q: Using a 130 cm- long lead pipe with 2 cm inside diameter, a liquid water is transferred at 4 degrees…

A: given; ⇒length of pipe (L)=130cm=1.30m⇒inside diamter(d1)=2cm=0.02m⇒outside…

Q: 3. The bottom of a 50mm diameter, 2mm thick metallic induction heater is 120C while its thermal…

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Q: A steam pipe 20cm in diameter is protected with a covering 6cm thick for which the coefficient of…

A: When heat flows radially from inwards to outwards in a cylindrical pipe then, a thermal resistance…

Q: Thermal Conductivity Problems: a. A wall is made of firebrick 6 inches thick and has a 50°C…

A: GivenPart at=6inch=0.5ft∆T=50oC=(50°C × 9/5) + 32 = 122°F K=0.65BTU/hr-ft-FoPart…

Q: According to the figure bolow, copper's conductivity is reduced least when mixed with 100 90 70 60…

A: Option C is correct.

Q: pherical shaped Vessel Ul meter is 90 mm thick. Find the kage, if the temperature ween the inner and…

A:

Q: A finned surface has been added to cool an electronic part. The surface temperature of the…

A: Given: Surface temperature of the electronic part (Ts)=60°CAmbient temperature (T∞)=25°C   (assumed…

Q: A wall as given in fig is made up of two layers (A) and (B) The temperatures are as shown in the…

A: Here, Temperature at the open surface of A = T1 = 1300 oC Temperature at interface = T2 = 1200 oC…

Q: A linear thermal actuator is being used, inside it contains wax with a specific volume of 15%, that…

A: Gievn Data The specific volume is: v=15% The expansion of the wax is: 15% The required stroke…

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.