Engine Cycle Comparator

Goal

Same T/r/γ inputs across six ideal cycles — who wins and why.

Instrument chain

1. 01
   Carnot Efficiency Calculator

   upper bound

   VERIFIED
2. 02
   Otto Cycle Efficiency Calculator

   spark

   VERIFIED
3. 03
   Diesel Cycle Efficiency Calculator

   compression

   VERIFIED
4. 04
   Dual (Sabathé) Cycle Efficiency Calculator

   real-engine blend

   VERIFIED
5. 05
   Brayton Cycle Efficiency Calculator

   turbine

   VERIFIED
6. 06
   Stirling Cycle Efficiency Calculator

   regenerative

   VERIFIED
7. 07
   Isothermal / Adiabatic / Polytropic Process Calculator

   the legs themselves

   VERIFIED

Handoffs and cross-checks

Shared r/γ/T inputs; Carnot at the same reservoirs is the ceiling nothing may exceed.

PointGuard stance

Every cycle result is bounded above by Carnot at the same temperatures — enforce it as an invariant; Diesel→Otto as rc→1 is a second invariant (t3-012 handled it right).

Sources and evidence

These pointers bind the page to evidence. They do not grant authority or collapse verification into deployment.

• INSTRUMENT_COMBOS.json
• VERIFIED_LEDGER.json