The h-x diagram allows you to "see" complex air treatments as simple geometric moves: Mollier diagram, part 2: the diagram explained
): Illustrated by diagonal lines (isenthalpics) moving from top-left to bottom-right, indicating the total heat content in kJ/kg. Density (
): Located on the vertical axis (usually left), measured in °C. Absolute Humidity ( h-x-diagramm pdf download
): Typically shown as slanting orange or dashed lines, measured in Partial Vapor Pressure (
): Found on the top horizontal scale, representing grams of water per kilogram of dry air (g/kg). Relative Humidity ( The h-x diagram allows you to "see" complex
The , also widely known as the Mollier diagram , is the "lingua franca" for engineers and HVAC specialists when analyzing moist air. Developed by Richard Mollier in 1923, it remains a fundamental tool for calculating and visualizing thermodynamic changes like heating, cooling, and humidification.
The diagram uses a unique designed to increase reading accuracy within the unsaturated range of air. To understand the data, look for these six key properties: Dry-Bulb Temperature ( Relative Humidity ( The , also widely known
): Often found on a bottom or side scale, useful for detailed humidification calculations. HVAC Processes and Calculations