Thermodynamics filled in class notes_Part_8

Thermodynamics filled in class notes_Part_8 - 2.1 CARNOT 23...

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Unformatted text preview: 2.1. CARNOT 23 Process Δ u parenleftBig kJ kg parenrightBig q parenleftBig kJ kg parenrightBig w parenleftBig kJ kg parenrightBig 1 → 2 5 . 74000 × 10 2 − 5 . 74000 × 10 2 2 → 3 3 . 78362 × 10 2 3 . 78362 × 10 2 3 → 4 − 5 . 74000 × 10 2 5 . 74000 × 10 2 4 → 1 − 1 . 26121 × 10 2 − 1 . 26121 × 10 2 Total 2 . 52241 × 10 2 2 . 52241 × 10 2 Table 2.2: First law parameters for Carnot cycle. Table 2.2 summarizes the first law considerations. The cycle work is found by adding the work of each individual process: w cycle = 1 w 2 + 2 w 3 + 3 w 4 + 4 w 1 , (2.64) = ( − 5 . 74 + 3 . 78362 + 5 . 74 − 1 . 26121) × 10 2 = 2 . 52241 × 10 2 kJ kg . (2.65) The cycle heat transfer is q cycle = 1 q 2 + 2 q 3 + 3 q 4 + 4 q 1 , (2.66) = (0 + 3 . 78362 + 0 − 1 . 26121) × 10 2 = 2 . 52241 × 10 2 kJ kg . (2.67) Note that w cycle = q cycle . (2.68) Check now for the cycle efficiency. Recall that the thermal efficiency is η = what you want what you pay for = w cycle q in . (2.69)(2....
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This note was uploaded on 11/26/2011 for the course EGN 3381 taught by Professor Park-sou during the Fall '11 term at FSU.

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Thermodynamics filled in class notes_Part_8 - 2.1 CARNOT 23...

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