Joule-Thomson expansion of higher dimensional nonlinearly AdS black hole with power Maxwell invariant source

In this paper, the Joule-Thomson expansion of the higher dimensional nonlinearly anti-de Sitter (AdS) black hole with power Maxwell invariant source is investigated. The results show the Joule-Thomson coefficient has a zero point and a divergent point, which coincide with the inversion temperature T-i and the zero point of the Hawking temperature, respectively. The inversion temperature increases monotonously with inversion pressure. For the high-pressure region, the inversion temperature decreases with the dimensionality D and the nonlinearity parameter s, whereas it increases with the charge Q. However, T-i for the low-pressure region increase with D and s, while it decreases with Q. The ratio eta(BH) between the minimum inversion temperature and the critical temperature does not depend on Q, it recovers the higher dimensional Reissner-Nordstrom AdS black hole case when s = 1. However, for s > 1, it becomes smaller and smaller as D increases and approaches a constant when D -> infinity . Finally, we found that an increase of mass M and s, or reducing the charge Q and D can enhance the isenthalpic curve, and the effect of s on the isenthalpic curve is much greater than other parameters.

Automated summary

The study examines the Joule-Thomson expansion of higher dimensional nonlinear AdS black hole with power Maxwell invariant source. The inversion temperature is influenced by inversion pressure, dimensionality, nonlinearity parameter, and charge. The relationship between the minimum inversion temperature and critical temperature is independent of charge but varies with dimensionality and nonlinearity parameter.