Complete Analysis of Heat Engine Goal Solve for the efficiency of a heat engine

Question

Complete Analysis of Heat Engine Goal Solve for the efficiency of a heat engine using a five-step process the includes 1. Making a state table 2. Making a process table 3. Calculating the totals for Work, Heat, and Internal-Energy-Change 4. Identifying the heat input (hot reservoir) and output (cold reservoir) 5. Calculating the efficiency of the engine isothermal Problem Shown in the figure to the right is a cyclic process undergone by a heat engine. Your heat engine shall use 5.0 moles of nitrogen gas (diatomic). During the process a->b, the pressure rises by a factor of 5.0 T, 300 K P, = 100,000 Pa Engine Cycle Solution (1) Fill in the State Table (all pressures in Pascals, all volumes in cubic meters, all temperatures in K) Pressure Temperature Volume 20.1247 1.00e+5 3 300 416.00e+5 50.1247 61500 1.00e+5 0.6235 9 1500 Work Heat dU 11124714.8 14 100356.5 17 -174600 12 124714.8 (2) Fill in the Process Table (all entries in Joules) b 13 100356.5 16 -49884 18 -124716 Work-1950472.5 (3) Find the Totals Hea t = 20150472.5 22225051.3 (4) Find the heat input (from "hot reservoir") and the heat output (to "cold reservoir": Q-hot Q-cold =2311745788 (5) Find the efficiency of the engine: efficiency ,24122425

Explanation / Answer

All of your answers are correct, other than heat output at cold reserve, using other data we can recalculate the same.

Efficiency = 1- (Tc/Th)

.22425 = 1 - Tc / 225051.3

Tc = 174583.5

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