Give one example of a thermodynamic cycle that does not account for the Carnot Efficiency.

Gas Turbine (Siemens)

Hot Air Water Pumping Engine (Myers Engines)

Thermo-Electrochemical Converter UTEC)

Thermo-Electrochemical converter (UTEC) is a thermodynamic cycle that does not account for the Carnot Efficiency.

Answer: Option 3

Explanation:

Thermo-Electrochemical converter converts potential energy difference during oxidation and reduction of hydrogen in two cell structure to heat energy.

It uses Ericsson cycle which has less efficiency compared to Carnot cycle efficiency. It converts heat into electrical energy in a closed system. There is no external input and output.

This means there is no mechanical work to be done and also there will not be any exhaust. So, Carnot efficiency is not accounted in this cycle. The other options like turbine and engine accounts for Carnot efficiency.