fistlawStirlingEngine

- The First Law and the Stirling Cycle Recall the expression for the First Law for a process of a closed system in terms of intensive variables

This preview shows pages 1–3. Sign up to view the full content.

The First Law and the Stirling Cycle. Recall the expression for the First Law for a process of a closed system in terms of intensive variables: u 12 = q 12 w 12 We have shown previously that the work for a process is given by = 2 1 12 pdv w where p must be expressed as a function of v . We have just shown that the change in internal energy is given by: ( 29 T c T T c dT c du u v v v = - = = = 1 2 2 1 2 1 12 We can now evaluate the heat transfer for a process. From the First Law we write + = + = 2 1 2 1 12 12 12 pdv dT c w u q v Recall the Stirling cycle and the work calculations for each process: 1 p v 1 2 3 4 1 2 p v v 1 = v 4 v 3 = v 2 Cooling at constant volume. w 41 = 0 Heating at constant volume. w 23 = 0 Isothermal compression Isothermal expansion

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Calculate the heat transfer for each process and the cycle as a whole. Assume a constant specific heat. Recall again
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 07/21/2011 for the course EML 3100 taught by Professor Staff during the Summer '10 term at FSU.

Page1 / 5

- The First Law and the Stirling Cycle Recall the expression for the First Law for a process of a closed system in terms of intensive variables

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online