Hot exhaust gases of a stationary diesel engine are to be used to generate steam in an evaporator. exhaust gases (cp = 1051 j/kg·k) enter the heat exchanger at 550°c at a rate of 0.25 kg/s while water enters as saturated liquid and evaporates at 200°c (hfg = 1941 kj/kg). the heat transfer surface area of the heat exchanger based on the water side is 0.5 m2 , and the overall heat transfer coefficient is 1780 w/m2 ·k. determine the rate of heat transfer, the exit temperature of the exhaust gases, and the rate of evaporation of the water.

it was a fall down when it happens

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:

i answer later k

explanation: