Answer:
(D) moral claim
Explanation:
Ethics is an aspect of philosophy that dwells on the study of morality. Morality on the other hand refers to how right or wrong a given situation or thing is.
When Jasmine who is a Mechanical Engineer in ACME Engineering refuses to have lunch with Shaun, a Sales Representative in another company that her company does not do business with, she has made a moral claim because this claim or decision is based on the rightfulness or wrongness of her actions on the basis of her organizations' principles. This is an ethical consideration and therefore a moral claim.
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Water at 1MPa and 383 K enters a vertical pipe that is 10 m in length. The pipe has a diameter 0.1 m. The mass flow rate of the pressurized water is 1.5 kg/s. The pipe passes through a furnace and heat is transferred from the furnace to the water flowing through the pipe such that at steady state steam at 700 kPa and 873 K exits the pipe. Determine:
a. the rate of enthalpy change between inlet and outlet of the pipe.
b. the rate of change in mechanical energy (kinetic and potential together) between inlet and outlet.
c. the rate of change in total energy between inlet and outlet.
d. the net transfer rate at which heat is transferred to water from the hot furnace.
Answer:
A) 4857 kw
b) 9.1605 Kj/s
c) 4866.161 kw
d) 4866.16 kw
Explanation:
water pressure = 1 MPa
temperature = 383 k
vertical pipe height = 10 m
pipe diameter = 0.1 m
mass flow rate of pressurized water (m) = 1.5 kg/s
A) determine rate of enthalpy change
Δh = h2 - h1
= 3700 - 462 = 3238 kj/kg
enthalpy change = m( Δh ) = 1.5 * 3238 = 4857 kw
attached below is the remaining parts of the solution
From steam table
at inlet : 1 Mpa , 383 k
h1 = 462 kj/kg
Q1 = 0.0015 m^3/kg
z1 = 0 m
at outlet : 700 kPa, 873 k
h2 = 3700 kj/kg
Q2 = 0.574 m^3/kg
z2 = 10 m
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