Isothermal, Heat transfer, Compressor, Expander, Energy Efficiency.
Isothermal compression/expansion is regarded as the most promising process in many applications and many researchers and inventors have tried different methods to achieve this goal. The current article first studies the gradual roadmap from adiabatic towards isothermal process from thermodynamics and heat transfer point of view. Different strategies are investigated to achieve this goal by evaluating different possibilities; the bottleneck of the problem is then identified and then increment of heat exchange surface is being focused on as the most promising solution. Finally a global map is illustrated to show the starting point, proposed solution standing point and the ideal situation and its requirement.