A heat pump cycle is executed with R134a under the saturation dome between the pressure limits of 1.4 and 0.16 MPa. The maximum coefficient of performance of this heat pump is (a) 1.1 (b) 3.8 (c) 4.8 (d) 5.3 (e) 2.9

13.155 InExample 13.15(no added infois requirefrom example 13.15 other thanthecam shape and the angular velocity (a)in termsof polar listebelow), determinethevelocityof the camfollowerwhen 0 = 1350 and eqns coordinatesand (b)interms of Cartesiancoordinates(justonvertyour answers to(a)using Fig3.8 aboveit in yourbook). The shape of the camis givenby r =0.15/(1+ 0.5cos0)where r isinmeters. The angular velocityof the arm iconstantand= 4 rad/seccounter-clockwise. 13.156 InExample 13.15,determine the acceleratiof thecam followerwhen 0 =1350 (a)interms ofpolar coordinatesand (b) in terms Cartesiancoordinates(justonvertyour answers to (a)using Fig3.8 and eqns above it inyo