24 Answered Questions for the topic Heat Transfer

Heat Transfer Mechanical Engineering

08/11/21

#### Calculate Steady-State Temperature

A 0.2 m thick plane wall has its temperature on one side maintained at 50oC and has a thermal conductivity of 15 W/m*k. The other side is exposed to air at 30oC with a convection coefficient of 7...
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09/03/20

#### Integrating an ODE

ODE: x(dt/dx)=C, where 𝐶 is constant, in the domain 𝑥1 ≤ 𝑥 ≤ 𝑥2, subject to boundary conditions: 𝑇(𝑥1 ) = 𝑇1 and 𝑇(𝑥2 ) = 𝑇2. Find the dimensionless temperature distribution 𝑇(𝑥)−𝑇1 𝑇2−𝑇1 . Looking...
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Heat Transfer Calculus

09/03/20

#### Integrating something that already has a dx in it

What would integrating both sides of x*(dT/dx)=C in terms of x look like?I keep getting that T(x)=C, but i don't think that's right. boundary conditions: 𝑇(𝑥1 ) = 𝑇1 and 𝑇(𝑥2 ) = 𝑇2 Thank you

08/14/19

#### I need help to solve for T. Not sure how 90 = 0.5454(T - 303) + [(1.6(10^-9))(T^4 - (303^4))]

90 = 0.5454(T - 303) + [(1.6(10^-9))(T^4 - (303^4))]I need to solve for T but dont know how to with the whole T^4

08/03/19

#### What is conduction or diffusion?

08/03/19

#### What is a thermocouple?

08/03/19

#### What is a thermoelectric cooler?

08/02/19

#### What causes heat transfer?

08/02/19

#### What is advection?

08/02/19

#### What are the types of heat transfer?

08/01/19

#### What is convection?

07/31/19

#### What is thermal radiation?

07/30/19

#### What is the Rayleigh number?

07/30/19

#### What is a heat engine?

11/23/16

#### Calculating Enthalpy in a Calorimeter Experiment

When 25.0 mL of 1.0 M H2SO4 is added to 50.0mL of 1.0M of NaOH at 25.0 degrees C in a calorimeter, the temperature of the aqueous solution increases to 33.9 degrees C. Assuming that the specific...
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#### Really need clarification for this.

in a thermal pot, there is a layer of vacuum in the outer wall, an inner pot lid and an outer pot lid.
Please help me to clarify these questions:
1. Does hot food radiate heat? Or does...
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Heat Transfer Mechanical Engineering

08/08/16

#### I am having a doubt in heat transfer (mechanical engineering).

I am working in an fmcg company where 'Thermic fluid lines' are used for drying chilly coriander garlic and cumin. The output of the thermic fluid is 6 lakh Kcal/hour. The load of thermic fluid...
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#### Heat transfer between metal and water, what amount of water is boiled?

You place a very hot piece of aluminum (T=120 degrees C, c=900 J/(kg*degrees C) into a 500ml beaker of water that is already at an initial temperature of 90.0 degrees C. The mass of this piece of...
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Heat Transfer Physics

11/08/15

#### Heat Transfer

Suppose a lake has a layer of ice 12 cm thick on its surface. The top of the ice layer is cooled by the atmosphere to -5.45° C. The lower surface is in contact with water at 0.0° C. The thermal...
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07/03/15

#### Wha is the final temperature of this mixture?

I'm reviewing some practice thermodynamics questions for my upcoming physics exam but I can't figure out how to set these up properly.
1. If you mix two parts hot 80° C water with one part 10°...
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