 Welcome back MechanicalAI. Did you know that all basic calculations of a thermal power plant can be carried out using the steam table? This makes us wonder, what are steam tables? Before we jump in, check out the previous part of this series to learn about what the properties of steam are. Now, the properties of water are arranged in a steam table as functions of pressure and temperature. Separate tables are provided to give the properties of water in the saturation states, the liquid states, and vapor phases. All this data can be used in solving problems to find out where and how a particular condition of steam will behave at a particular state. An enthalpy-entropy chart, also known as the HS chart, or more famously the Maulier diagram, plots the total heat against entropy, describing the enthalpy of a thermodynamic system. In this case, a water-steam mixture. The bold line is a saturation line, above which all is either liquid or vapor, and below which is a liquid-vapor mixture. To the left of critical point is liquid, and to the right of it is vapor. The vertical lines are all constant pressure lines, and horizontal lines are all constant temperature lines. The lines, with negative slope below the saturation line, are dryness fraction lines. Hence, we first saw what a steam table is, then learned about the Maulier's diagram. So, like, subscribe and comment with your feedback to help us make better videos. Thanks for watching. Also, thanks a lot for those constructive comments. You helped the channel grow. So, here are the top mechanical EIs of our last videos. In the next episode of Mechanical EI, find out what Carnot and Rankine Cycles are.