Air flows with a mass rate of 0.1 kg/s through an aluminum circular pipe of inner diameter d, 0.15 m and outer diameter do-0.20 m at inlet temperature of 100°c. after traveling l-10 m, the air cools down to 75°c. outside the pipe, heat transfer from the pipe to the surroundings takes place by convection and radiation a to=tsur =20°c and a combined convection and condtuction heat transfer coefficient of 5 w/m2.k a)- calculate the heat loss in watts from the duct over the whole pipe. b)- draw the equivalent thermal circuit and calculate the value of all thermal resistances. c)-determine the heat flux and the duct surface temperature at x=l .

d would be the most obvious choice to this question. leaders are supposed to herd their underlings like a shepherd to sheep. a leader should also listen to others when they are talking to one other to gain a better understanding of their mission and surroundings.

explanation:

the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true?

a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of

5

9

degree celsius.

a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.

a temperature increase of

5

9

degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.

a) i only

b) ii only

c) iii only

d) i and ii only

answer:

(b)

explanation:

answer:

what happend?

explanation: