Aconverging elbow turns water through an angle of 135* in
avertical plane. the flow cross-sectional diameter is 400mm atthe
elbow inlet, section (1), and 200mm at the elbow outlet, section
(2). the elbow flow passage volume is0.2m3 between
sections (1) and (2). the watervolume flow rate is
0.4m3/s, and the elbow inlet andoutlet pressures are 150
and 90kpa. the elbow mass is12kg. calculate the horizontal (x
direction) and vertical (zdirection) anchoring forces required to
hold the elbow inplace.

The catalogue for a refrigerant 22, four-cylinder, hermetic compressor operating at 29 r/s. a condensing temperature of 40°c and an evaporating temperature of -4°c shows a refrigeration capacity of 115 kw. at this operating point, the motor (its efficiency is 90 percent) draws 34.5 kw. the bore of the cylinders is 87 mm and the piston stroke is 70 mm. the performance data are based on 8°c of sub-cooling of the liquid leaving the condenser. compute (a) the actual volumetric efficiency and (b) the compression efficiency.