Classical Thermodynamic Analysis of D-Based Nuclear Fusion Reactions: The Role of Entropy

In this work, the feasibility of nuclear processes is studied via classical thermodynamics by assessing change in entropy, a parameter that has so far been neglected analysis these reactions. The contribution entropy to reaction spontaneity plays different role fission and fusion particular, reactions temperature acts as very powerful amplifier entropic term (−T ΔS) that, at tokamaks (millions Kelvin), may significantly reduce thermodynamic processes. A new approach followed for D-based interest magnetically confined through investigation effect on both kinetics thermodynamics. results confirm deuterium–tritium most promising be realized tokamak devices. At 1.5 × 108 K (≈13 keV), DT exhibits large (ΔG = 16.0 MeV) its reactivity order 10−22 m3/s, value capable guaranteeing tritium burning rate needed operate plants under self-sufficiency conditions with net energy production. other show tokamaks’ two branches DD exhibit modest around −2 coupled low values (10−24 m3/s). rise could aimed increase however ineffective improve since it would augment well, thus shifting ΔG towards positive values. D3He soundly spontaneous −17.2 while close reactions, which are least orders magnitude lower than reaction.