Explain heat transfer, latent heat and change in temperature for
the following case: Ice kept at -10 degrees C temperature turns
into water at +10 degrees C temperature upon heating.
For
heat transfer
1. how would one calculate the temperature of a probe at a
distance X from wall.
Thermal conductivity is known
Diameter is known
Extenernal ambient temperature is known
Surface heat transfer coefficient is known
Gas temperature is known
Radiative heat transfer is negligible
2. How would one calculate rate at which energy is gained by
convection to the probe (using above information)
3. How to determine minimum length of probe to be considered
thermally infinite
How much total heat transfer is necessary to lower the
temperature of 0.295 kg of steam from 145.5 C to -23.5 C, including
the energy for phase changes.
How much time is required for each stage of this process,
assuming a constant 835.0 W rate of heat exchange? Give the times
in the order that the stages occur.
T1 =
T2 =
T3 =
T4 =
T5 =
How much total heat transfer is necessary to lower the
temperature of 0.315 kg0.315 kg of steam from 145.5 °C145.5 °C to
−15.5 °C,−15.5 °C, including the energy for phase changes?
total heat transfer:
JJ
How much time is required for each stage of this process,
assuming a constant 835.0 W835.0 W rate of heat exchange? Give the
times in the order that the stages occur.
t1=t1=
ss
t2=t2=
ss
t3=t3=
ss
t4=t4=
ss
t5=t5=
ss
Question Credit: OpenStax College...
How much total heat transfer is necessary to lower the
temperature of 0.275 kg of steam from 145.5 °C to −15.5 °C,
including the energy for phase changes?
total heat transfer:
J
How much time is required for each stage of this process,
assuming a constant 815.0 W rate of heat exchange? Give the times
in the order that the stages occur.
t1=
t2=
t3=
t4=
t5=
Explain in summary;
a. Knowledge Application and related research issues
b. Knowledge Transfer and related research issues
c. Knowledge Storage and Retrieval and related research
issues
Propose a reasonable value for pressure, volume, and temperature
etc., the heat transfer Q, work done W, and internal energy change
ΔU for each of the steps in the Carnot cycle and thermal
efficiency.