Three states in a thermodynamic process are defined by p1 = 1 bar and v1 = 2 l, p2 = 20 bar and v2 = 0.2 l, and p3 = 4 bar and v3 = 1 l. the quantity β is defined for the path of integration 1-2-3 by: = − ∫ p 2 1 − ∫ p 3 2 determine β (expressed in units of joules) connecting states 1 and 2 with a linear p-v process and connecting states 2 and 3 with a polytropic process. remember that a polytropic process is one that can be described by the following relationship:= �

Give heat transfer applications for the following, (i) gas turbines (propulsion) ) gas turbines (power generation). (iii) steam turbines. (iv) combined heat and power (chp). (v) automotive engines

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.

The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody