Answer:
Check the explanation
Explanation:
Assumptions.
1. The surfaces are diffuse, may and opaque
2. steady operating conditions exist
3. Heat transfer from and to the surfaces is only due to Radiation
Consider the base surface to be surface 2 the top surface to be surface and the side surfaces to surface 3 1. cubical furnace can be considered to be three-surface enclosure. the areas and black body emissive powers of surfaces can be calculated as seen in the attached images below.
Forces exerted by the jet on the plate is=3976N
<h3>How to calculate forces exerted by the jet on the plate?</h3>A force is an effect that can change the motion of an object. A force can generate an object with mass to change its velocity, i.e., to accelerate. Force can also be explained intuitively as a push or a pull. A force has both volume and direction, making it a vector amount.
A jet of water 75m in diameter
velocity = 30m/s
The forces exerted by the jet on the plate is
F=1000×44178×10^-3×30²
=3976N
the jet on the plate work done by Is zero .
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Answer:
design angle ∅ = 4.9968 ≈ 5⁰
Explanation:
First calculate the force Fac :
Fac =
=
= 708.72 Ib
using the sine law to determine the design angle
hence ∅ =
= = 4.9968 ≈ 5⁰
Answer:
Power output,
Given:
Pressure of steam, P = 1400 kPa
Temperature of steam,
Diameter of pipe, d = 8 cm = 0.08 m
Mass flow rate,
Diameter of exhaust pipe,
Pressure at exhaust, P' = 50 kPa
temperature, T' =
Solution:
Now, calculation of the velocity of fluid at state 1 inlet:
Now, eqn for compressible fluid:
Now,
Now, the power output can be calculated from the energy balance eqn: