Consider an engine that has a working fluid of air at 27c° and 100kpa at the beginning of the compression process and at 1700 k at the end of the heat addition process. assuming the engine to operate on the ideal diesel cycle with a compression ratio of 19 and using constant specific heats evaluated at the average temperature, determine (a) the cutoff ratio, (b) the heat rejection per unit mass, and, (c) the thermal efficiency

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.