Q: What are the common causes of fouling in a heat exchanger?
What are the common causes of fouling in a heat exchanger? How does fouling affect heat transfer and pressure drop?
See AnswerQ: Irradiation on a semitransparent medium is at a rate of 520 W
Irradiation on a semitransparent medium is at a rate of 520 W/m2. If 160 W/m2 of the irradiation is reflected from the medium and 130 W/m2 is transmitted through the medium, determine the medium’s abs...
See AnswerQ: Water (cp = 1.0 Btu/lbm⋅°F
Water (cp = 1.0 Btu/lbm⋅°F) is to be heated by solar heated hot air (cp = 0.24 Btu/lbm⋅°F) in a double-pipe counterflow heat exchanger. Air enters the heat exchanger at 190°F at a rate of 0.7 lbm/s an...
See AnswerQ: Consider an opaque horizontal plate that is well insulated on the edges
Consider an opaque horizontal plate that is well insulated on the edges and the lower surface. The plate is uniformly irradiated from above while air at T∞ = 300 K flows over the sur...
See AnswerQ: What is the value of the engineering software packages in (a
What is the value of the engineering software packages in (a) engineering education and (b) engineering practice?
See AnswerQ: What is the physical significance of hfg? Can it be obtained
What is the physical significance of hfg? Can it be obtained from a knowledge of hf and hg? How?
See AnswerQ: A shell-and-tube heat exchanger with one shell pass
A shell-and-tube heat exchanger with one shell pass and 14 tube passes is used to heat water in the tubes with geothermal steam condensing at 120°C (hfg = 2203 kJ/kg) on the shell side. The...
See AnswerQ: Consider an opaque plate that is well insulated on the edges and
Consider an opaque plate that is well insulated on the edges and heated at the bottom with an electric heater. The plate has an emissivity of 0.67 and is situated in an ambient surrounding temperature...
See AnswerQ: Hot water at 60°C is cooled to 36°C
Hot water at 60°C is cooled to 36°C through the tube side of a one-shell-pass and two-tube-passes heat exchanger. The coolant is also a water stream, for which the inlet and outlet temperatures are 7°...
See AnswerQ: A horizontal plate is experiencing uniform irradiation on both upper and lower
A horizontal plate is experiencing uniform irradiation on both upper and lower surfaces. The ambient air temperature surrounding the plate is 290 K with a convection heat transfer coefficient of 30 W/...
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