Engineering, 23.10.2021 17:40, Darkknighta26
Liquid water is fed to a boiler at 24°C and 10 bar and is converted at constant pressure to saturated steam. (a) Use the steam tables to calculate ΔH^(kJ/kg) for this process, and then determine the heat input required to produce 15,800 m3 /h of steam at the exit conditions. Assume the kinetic energy of the entering liquid is negligible and that steam is discharged through a 15-cm ID pipe. (b) How would the calculated value of the heat input change if you did not neglect the kinetic energy of the inlet water and if the inner diameter of the steam discharge pipe were 13 cm (increase, decrease, stay the same, or no way to tell without more information)?
Answers: 1
Engineering, 04.07.2019 18:10, lowkeyqueenk
Apipe with an outside diameter of 15 cm is exposed to an ambient air and surrounding temperature of -20°c. the pipe has an outer surface temperature of 65°c and an emissivity of 0.85. if the rate of heat loss from the pipe surface is 0.95 kw per meter of length, the external convective heat transfer coefficient (h) is: (a) 12.5 w/m"k (b) 18.6 w/mk (c) 23.7 w/mk (d) 27.9 w/mk (e) 33.5 w/mk
Answers: 1
Engineering, 04.07.2019 18:10, tobyhollingsworth178
Which from the following instrument is commonly used to detect the high pitch butzing sound in bearings? [clo4] a)-digital ultrasonic meter b)-infrared camera c)-spectroscopic d)-vibrometer
Answers: 2
Liquid water is fed to a boiler at 24°C and 10 bar and is converted at constant pressure to saturate...
Mathematics, 31.07.2021 02:30
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Mathematics, 31.07.2021 02:30