Numerical EES Code of Liquid Piston Hydrogen Compression ,and hydrophobic thermophysical properties of some ILs_2026 Data sets

This dataset contains an Engineering Equation Solver (EES) model of a single-stage liquid piston compressor for hydrogen gas. The model simulates the transient compression process inside a cylindrical chamber where a liquid piston compresses hydrogen while accounting for energy balances, Convection-based heat transfer at the liquid–gas interface, and wall heat transfer through finite-difference discretization. The code numerically solves the coupled mass and energy balance equations for the gas, liquid, and chamber wall over a defined time domain. The primary objective of the model is to evaluate: Gas pressure evolution during compression Gas temperature rise during compression Heat transfer at the liquid–gas interface (conduction only) Thermal interaction between working fluid and vessel wall Thermodynamic behavior of hydrogen under compression