2. A solar water heater mounted on the roof consists of two flat plates. Water enters at A and exits at B. If the gap between the plates is a = 1.5 mm, determine the maximum allowable pressure drop from A to B so that the flow remains laminar. Assume the average temperature of the water is 45°C. 2 m

A solar water heater mounted on the roof consists of two flat plates. Water enters at A and exits at B. Assume the average temperature of the water is 45° C. (Figure 1) Figure 2m Part A If the gap between the plates is a = 1.46 mm, determine the maximum allowable pressure drop from A to B so that the flow remains laminar. Express your answer to three significant figures and include the appropriate units. Apmax=2060 μÀ 1 Pa Submit Previous Answers Request Answer Provide Feedback * Incorrect; Try Again; 4 attempts remaining ? Next >

Water is being pumped (at Q) from a reservoir to a nearby storage facility for a local farm. Thewater level in the reservoir varies throughout the year. When it is considered “full” the change inelevation from the top of the water line to the centerline of the pipe at (2) is h. The pipe is madeof welded steel. Assuming there are both major and minor losses, determine the pressure in thepipe at (2).Clearly state the source(s) of minor losses.Use the Haaland and Darcy-Weisbach equations.Flowrate (Q), elevation difference (h), head from pump (hp), pipe length (L), and diameter (D)are given below. State all assumptions. Q =0.54 m^3/s, h =3.5 m, h_p=47.5 m, L = 23.33 m, D = 0.467m

Glycerin flows through the pipe of diameter 41 mm at temperature of 15∘C with flow rate of 0.003 m3/s. Determine the head loss in the pipe where the total length of the pipe is 23 m.