Mechanical Engineering Exam > Mechanical Engineering Questions > A horizontal heated plate at 200C and facing ...
Start Learning for Free
A horizontal heated plate at 200०C and facing upwards has been placed in still air at 20०C . If the plate measures 1.25m x 1m , make calculations for the heat loss by natural convection. The convective film coefficient for free convection is given by the following empirical relation h=0.32 (θ)0.25W/m2K
Where θ is the mean film temperature in Kelvin. Predict your answer in watts correct upto two decimal places.
Correct answer is between '318,319'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
A horizontal heated plate at 200C and facing upwards has been placed i...
Mean film temperature,
∴Convective film coefficient,
h = 0.32 x (383)0.25
= 1.415 W/m2-K
Rate of heat loss, Q
= h A Δt
= 1.415 x (1.25 x 1) x (200 - 20)
= 318.375 W
Most Upvoted Answer
A horizontal heated plate at 200C and facing upwards has been placed i...
(Tp - Ta))^0.25, where h is in W/(m^2*C), Tp is the plate temperature in C, and Ta is the ambient temperature in C.
Assuming steady-state conditions, the heat loss by natural convection can be calculated using the following equation:
Q = h*A*(Tp - Ta)
where Q is the heat loss in W, A is the plate area in m^2, and h is the convective film coefficient in W/(m^2*C).
Given that the plate measures 1.25m x 1m, the area is:
A = 1.25m x 1m = 1.25 m^2
The convective film coefficient can be calculated using the given empirical relation:
h = 0.32*(Tp - Ta)^0.25
Substituting Tp = 200C and Ta = 20C, we get:
h = 0.32*(200 - 20)^0.25
= 27.9 W/(m^2*C)
Now, substituting the values of A and h in the heat loss equation, we get:
Q = 27.9*1.25*(200 - 20)
= 3,472.5 W
Therefore, the heat loss by natural convection from the horizontal heated plate is 3,472.5 W.
Assuming steady-state conditions, the heat loss by natural convection can be calculated using the following equation:
Q = h*A*(Tp - Ta)
where Q is the heat loss in W, A is the plate area in m^2, and h is the convective film coefficient in W/(m^2*C).
Given that the plate measures 1.25m x 1m, the area is:
A = 1.25m x 1m = 1.25 m^2
The convective film coefficient can be calculated using the given empirical relation:
h = 0.32*(Tp - Ta)^0.25
Substituting Tp = 200C and Ta = 20C, we get:
h = 0.32*(200 - 20)^0.25
= 27.9 W/(m^2*C)
Now, substituting the values of A and h in the heat loss equation, we get:
Q = 27.9*1.25*(200 - 20)
= 3,472.5 W
Therefore, the heat loss by natural convection from the horizontal heated plate is 3,472.5 W.
Attention Mechanical Engineering Students!
To make sure you are not studying endlessly, EduRev has designed Mechanical Engineering study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Mechanical Engineering.
|
Explore Courses for Mechanical Engineering exam
|
|
Similar Mechanical Engineering Doubts
Top Courses for Mechanical EngineeringView all
A horizontal heated plate at 200C and facing upwards has been placed in still air at 20C . If the plate measures 1.25m x1m , make calculations for the heat loss by natural convection. The convective film coefficient for free convection is given by the following empirical relation h=0.32 (θ)0.25W/m2KWhere θ is the mean film temperature in Kelvin. Predict your answer in watts correct upto two decimal places.Correct answer is between '318,319'. Can you explain this answer?
Question Description
A horizontal heated plate at 200C and facing upwards has been placed in still air at 20C . If the plate measures 1.25m x1m , make calculations for the heat loss by natural convection. The convective film coefficient for free convection is given by the following empirical relation h=0.32 (θ)0.25W/m2KWhere θ is the mean film temperature in Kelvin. Predict your answer in watts correct upto two decimal places.Correct answer is between '318,319'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about A horizontal heated plate at 200C and facing upwards has been placed in still air at 20C . If the plate measures 1.25m x1m , make calculations for the heat loss by natural convection. The convective film coefficient for free convection is given by the following empirical relation h=0.32 (θ)0.25W/m2KWhere θ is the mean film temperature in Kelvin. Predict your answer in watts correct upto two decimal places.Correct answer is between '318,319'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A horizontal heated plate at 200C and facing upwards has been placed in still air at 20C . If the plate measures 1.25m x1m , make calculations for the heat loss by natural convection. The convective film coefficient for free convection is given by the following empirical relation h=0.32 (θ)0.25W/m2KWhere θ is the mean film temperature in Kelvin. Predict your answer in watts correct upto two decimal places.Correct answer is between '318,319'. Can you explain this answer?.
A horizontal heated plate at 200C and facing upwards has been placed in still air at 20C . If the plate measures 1.25m x1m , make calculations for the heat loss by natural convection. The convective film coefficient for free convection is given by the following empirical relation h=0.32 (θ)0.25W/m2KWhere θ is the mean film temperature in Kelvin. Predict your answer in watts correct upto two decimal places.Correct answer is between '318,319'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about A horizontal heated plate at 200C and facing upwards has been placed in still air at 20C . If the plate measures 1.25m x1m , make calculations for the heat loss by natural convection. The convective film coefficient for free convection is given by the following empirical relation h=0.32 (θ)0.25W/m2KWhere θ is the mean film temperature in Kelvin. Predict your answer in watts correct upto two decimal places.Correct answer is between '318,319'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A horizontal heated plate at 200C and facing upwards has been placed in still air at 20C . If the plate measures 1.25m x1m , make calculations for the heat loss by natural convection. The convective film coefficient for free convection is given by the following empirical relation h=0.32 (θ)0.25W/m2KWhere θ is the mean film temperature in Kelvin. Predict your answer in watts correct upto two decimal places.Correct answer is between '318,319'. Can you explain this answer?.
Solutions for A horizontal heated plate at 200C and facing upwards has been placed in still air at 20C . If the plate measures 1.25m x1m , make calculations for the heat loss by natural convection. The convective film coefficient for free convection is given by the following empirical relation h=0.32 (θ)0.25W/m2KWhere θ is the mean film temperature in Kelvin. Predict your answer in watts correct upto two decimal places.Correct answer is between '318,319'. Can you explain this answer? in English & in Hindi are available as part of our courses for Mechanical Engineering.
Download more important topics, notes, lectures and mock test series for Mechanical Engineering Exam by signing up for free.
Here you can find the meaning of A horizontal heated plate at 200C and facing upwards has been placed in still air at 20C . If the plate measures 1.25m x1m , make calculations for the heat loss by natural convection. The convective film coefficient for free convection is given by the following empirical relation h=0.32 (θ)0.25W/m2KWhere θ is the mean film temperature in Kelvin. Predict your answer in watts correct upto two decimal places.Correct answer is between '318,319'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
A horizontal heated plate at 200C and facing upwards has been placed in still air at 20C . If the plate measures 1.25m x1m , make calculations for the heat loss by natural convection. The convective film coefficient for free convection is given by the following empirical relation h=0.32 (θ)0.25W/m2KWhere θ is the mean film temperature in Kelvin. Predict your answer in watts correct upto two decimal places.Correct answer is between '318,319'. Can you explain this answer?, a detailed solution for A horizontal heated plate at 200C and facing upwards has been placed in still air at 20C . If the plate measures 1.25m x1m , make calculations for the heat loss by natural convection. The convective film coefficient for free convection is given by the following empirical relation h=0.32 (θ)0.25W/m2KWhere θ is the mean film temperature in Kelvin. Predict your answer in watts correct upto two decimal places.Correct answer is between '318,319'. Can you explain this answer? has been provided alongside types of A horizontal heated plate at 200C and facing upwards has been placed in still air at 20C . If the plate measures 1.25m x1m , make calculations for the heat loss by natural convection. The convective film coefficient for free convection is given by the following empirical relation h=0.32 (θ)0.25W/m2KWhere θ is the mean film temperature in Kelvin. Predict your answer in watts correct upto two decimal places.Correct answer is between '318,319'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice A horizontal heated plate at 200C and facing upwards has been placed in still air at 20C . If the plate measures 1.25m x1m , make calculations for the heat loss by natural convection. The convective film coefficient for free convection is given by the following empirical relation h=0.32 (θ)0.25W/m2KWhere θ is the mean film temperature in Kelvin. Predict your answer in watts correct upto two decimal places.Correct answer is between '318,319'. Can you explain this answer? tests, examples and also practice Mechanical Engineering tests.
|
|
Explore Courses for Mechanical Engineering exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup