What would the mixed-air temperature be for a system with 20 percent outdoor air if the outdoor air temperature is 10 degrees Fahrenheit and the return-air temperature is 75 degrees Fahrenheit

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

Manometers are good examples of measuring instruments, nowadays they are not as common as before. a)-capacitive probe gauges b)-gravitational gauges deformation ) gauges d)-digital gauges

Water at the rate of 1 kg/s is forced through a tube with a 2.5 cm inner diameter. the inlet water temperature is 15°c, and the outlet water temperature is 50°c. the tube wall temperature is 14°c higher than the local water temperature all along the length of the tube. what is the length of the tube?