Problem No 6: Pok 0.L ТР. O Liquid (temperature t=0°C) flows from the lower reservoir to the upper reservoir through the

[answerhappygod]

1 (107.61 KiB) Viewed 43 times

Thermodynamics homework, use the value mentioned in the image.
The sum only done by the expert,so please do the sum by experts.
Problem No 6: Pok 0.L ТР. O Liquid (temperature t=0°C) flows from the lower reservoir to the upper reservoir through the serially connected pipeline. The lower reservoir is under the gage pressure Pm, while the upper reservoir is under the vacuum pressure Px. The diameters of the pipes are d and D, lengths are l and L. Calculate difference of elevations in the reservoirs h if surface roughness A. =0.1 mm. The coefficients of minor losses for entrance are K.=0.5, for exit K =1.0. Use Borda-Karnot relation for sudden expansion Km = (1 - A1/A2) det variant 9 Liquid ethylene glycol 80% Fig. 6 variant D, mm d, mm L, m 1, m 6 55 35 18 16 250 17 5 Pan, kPa Puk, kPa Q, 1/s