What are the key principles and processes involved in the Carnot power cycle?

The Carnot power cycle is based on four key principles: reversible isothermal expansion, reversible adiabatic expansion, reversible isothermal compression, and reversible adiabatic compression. The cycle involves transferring heat energy from a high-temperature reservoir to a working fluid, which then performs work by expanding and contracting. The efficiency of the Carnot cycle is determined by the ratio of the temperatures of the hot and cold reservoirs.