Answer:
Check the explanation
Explanation:
Kindly check the attached images below to see the diagram design to solve the above question.
Answer:
A) i) 984.32 sec
ii) 272.497° C
B) It has an advantage
C) attached below
Explanation:
Given data :
P = 2700 Kg/m^3
c = 950 J/kg*k
k = 240 W/m*K
Temp at which gas enters the storage unit = 300° C
Ti ( initial temp of sphere ) = 25°C
convection heat transfer coefficient ( h ) = 75 W/m^2*k
<u>A) Determine how long it takes a sphere near the inlet of the system to accumulate 90% of the maximum possible energy and the corresponding temperature at the center of sphere</u>
First step determine the Biot Number
characteristic length( Lc ) = ro / 3 = 0.0375 / 3 = 0.0125
Biot number ( Bi ) = hLc / k = (75)*(0.0125) / 40 = 3.906*10^-3
Given that the value of the Biot number is less than 0.01 we will apply the lumped capacitance method
attached below is a detailed solution of the given problem
<u>B) The physical properties are copper</u>
Pcu = 8900kg/m^3)
Cp.cu = 380 J/kg.k
It has an advantage over Aluminum
C<u>) Determine how long it takes a sphere near the inlet of the system to accumulate 90% of the maximum possible energy and the corresponding temperature at the center of sphere</u>
Given that:
P = 2200 Kg/m^3
c = 840 J/kg*k
k = 1.4 W/m*K
Explanation:
i think option 4 is correct answer because itsrelated to animal not plants.
Answer:
Agricultural engineering
Explanation:
Hello,
First, this area of engineering deals with design, construction and upgrade of farm equipment and machines for purpose of production and processing.
This course will equip Mary with the skills and knowledge that can be applied is solving challenges in the field of Agriculture especially in areas of power supplies, machinery efficiency, agricultural products storage and processing, environmental issues, pollution in the ecosystem and structures and facilities that improve agriculture.
The vital skills that Mary should develop while pursing this course are analytical skills to solve complicated systems, technical skills to do proper math, critical thinking skills to be able to think outside the box for solutions and communication skills to proper work with others.
Mary will learn about using software to design systems, machine operation and farm equipment.Her studies will cover ways of modifying the environment for sustainable agricultural practices.She will be able to know ways of testing farm equipment to ensure proper functionality and high output.This is a multi-disciplinary career, hence she will interact with civil engineers, contractors, environmentalists and other stakeholders to ensure the goals of projects are attained.
Hope this Helps Engineer!
Answer:
Statement 1: All balls hit the ground at the same time
Explanation:
When there is no resistance of air, the acceleration due to gravity experienced by all the bodies are same. So for falling bodies, neglecting the air resistance, the falling object will be weightless and therefore all the objects will hit the ground at the same time when there is nor air resistance and the objects are considered to be falling in vacuum.