Air enters the compressor of a regenerative gas turbine at 14.5 lbf/in.2, 77°f, and is compressed to 60 lbf/in.2 the air then passes through the regenerator and exits at 1120°r. the temperature at the turbine inlet is 1700°r. the compressor and turbine each have an isentropic efficiency of 84%. the net power developed is 1000 hp. using an air-standard analysis, calculate:
(a) thermal efficiency of cycle
(b) regenerator effectiveness
(c) net power output

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.