Q: A 1.8-m3 rigid tank contains steam at 220
A 1.8-m3 rigid tank contains steam at 220°C. One-third of the volume is in the liquid phase and the rest is in the vapor form. Determine (a) the pressure of the steam, (b) the quality of th...
See AnswerQ: Glycerin (cp = 2400 J/kg⋅K) at
Glycerin (cp = 2400 J/kg⋅K) at 20°C and 0.5 kg/s is to be heated by ethylene glycol (cp = 2500 J/kg⋅K) at 60°C and the same mass flow rate in a thin-walled double-pipe parallel-flow heat exchanger. If...
See AnswerQ: Water (cp = 4180 J/kg⋅K) is
Water (cp = 4180 J/kg⋅K) is to be heated by solar heated hot air (cp = 1010 J/kg⋅K) in a double pipe counterflow heat exchanger. Air enters the heat exchanger at 90°C at a rate of 0.3 kg/s, while wate...
See AnswerQ: Reconsider Prob. 22–82. Using appropriate software, investigate
Reconsider Prob. 22–82. Using appropriate software, investigate the effects of the mass flow rate of water and the tube length on the outlet temperatures of water and air. Let the mass flow rate vary...
See AnswerQ: Cold water (cp = 4180 J/kg⋅K)
Cold water (cp = 4180 J/kg⋅K) leading to a shower enters a thin-walled double-pipe counterflow heat exchanger at 15°C at a rate of 0.25 kg/s and is heated to 45°...
See AnswerQ: Reconsider Prob. 22–84. Using appropriate software, investigate
Reconsider Prob. 22–84. Using appropriate software, investigate the effects of the inlet temperature of hot water and the heat transfer coefficient on the rate of heat transfer and t...
See AnswerQ: A thin-walled double-pipe counterflow heat exchanger is to
A thin-walled double-pipe counterflow heat exchanger is to be used to cool oil (cp = 0.525 Btu/lbm⋅°F) from 300°F to 105°F at a rate of 5 lbm/s with water (cp = 1.0 Btu/lbm⋅°F) that enters at 70°F at...
See AnswerQ: A one-shell and two-tube-type heat exchanger
A one-shell and two-tube-type heat exchanger has an overall heat transfer coefficient of 300 Btu/h⋅ft2⋅°F. The shell-side fluid has a heat capacity rate of 20,000 Btu/h⋅°F, while the tube-side fluid h...
See AnswerQ: In a one-shell and two-tube heat exchanger,
In a one-shell and two-tube heat exchanger, cold water with inlet temperature of 20°C is heated by hot water supplied at the inlet at 80°C. The cold and hot water flow rates are 5000 kg/h and 10,000 k...
See AnswerQ: Hot oil (cp = 2200 J/kg⋅K)
Hot oil (cp = 2200 J/kgâ‹…K) is to be cooled by water (cp = 4180 J/kgâ‹…K) in a two-shell-passes and 12-tube-passes heat exchanger. The tubes are thin-walled and are ma...
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