Rankine vs. Stirling Engine

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Discussion Overview

The discussion centers on the efficiency comparison between a one-moving-part Rankine engine and a Stirling engine. Participants explore theoretical aspects, personal research findings, and the need for mathematical validation of claims.

Discussion Character

  • Debate/contested

Main Points Raised

  • One participant claims that a single-moving-part Rankine engine can outperform a Stirling engine but lacks mathematical proof.
  • Another participant questions the conditions under which the Rankine engine could be more efficient and suggests that numerous factors may influence this outcome.
  • Concerns are raised about the reliance on personal research without mathematical backing, with one participant emphasizing the importance of literature review and established findings in the field.
  • There is a reiteration of the need for mathematical evidence to support claims, suggesting that without it, the arguments may lack scientific rigor.

Areas of Agreement / Disagreement

Participants express differing views on the validity of personal research without mathematical proof, indicating a lack of consensus on the comparison between the two engine types.

Contextual Notes

Participants note the dependence on various factors that could affect the efficiency comparison, but specific assumptions and definitions remain unresolved.

VinceK
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Can a one-moving-part Rankine engine be more efficient than a Stirling engine?
 
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Welcome to PF.

What has your research so far indicated?
 
My research indicates that a single-moving-part Rankine can out perform a Stirling but I don't have the math to prove it ... :-(
 
VinceK said:
My research indicates that a single-moving-part Rankine can out perform a Stirling but I don't have the math to prove it ... :-(
The "math to prove it" would depend on numerous factors. What do you think those might be? Under what circumstances "can" it happen?
 
VinceK said:
My research
Which appears to mean your personal attempts to wave your hands.

Have you looked at the literature to see if any professionals in the field have investigated this topic, and if so, what they found?
 
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VinceK said:
I don't have the math
Without math you're just waving your hands. That's not a good way to investigate a scientific question.
 

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