ThermExcel forces you to look at the difference between the chilled surface and the ambient air. For psychrosi, you usually have a high Delta T (e.g., 35°C ambient vs. 5°C pipe). The program calculates the heat flux into the cold system.
Calculating misting and cooling via evaporative processes. 4. Specialized Swimming Pool Module
Currently, ThermExcel excels at static point calculations (mixing air, cooling coils, etc.). The new feature, simulates how a zone’s psychrometric state evolves over time when exposed to variable loads (people, windows, infiltration) and HVAC setbacks.
The software allows users to input just to instantly calculate all other properties of moist air. These input combinations include: Dry Bulb Temperature paired with Relative Humidity ( RHcap R cap H ), Wet Bulb Temperature ( WBTcap W cap B cap T ), Specific Moisture ( ), or Enthalpy ( Relative Humidity combined with Specific Moisture. Specific Moisture matched with Enthalpy. thermexcel programme psychrosi
Analyzing the state of the air, moisture content, and enthalpy for air conditioning systems. Key Features and Capabilities
The software uses the extended to dehumidifying coils, with correlations for:
ThermExcel is a comprehensive software tool designed to simplify psychrometric calculations and analysis. This intuitive program allows users to easily compute and visualize various psychrometric properties, such as: ThermExcel forces you to look at the difference
is a specialized Microsoft Excel-based engineering software program developed by ThermExcel for calculating the thermodynamic properties of moist air (psychrometrics). Built entirely within the Excel VBA environment, this programmatic tool replaces manual psychrometric charts with instant, iterative calculations for complex air conditioning, heating, ventilation (HVAC), and indoor swimming pool thermal management projects. It is widely used by thermal engineers to model air handling systems, evaluate air mixing behaviors, and size equipment such as heating coils and chilled water batteries.
Most engineers obsess over . Heating is forgiving. If you oversize a radiator, the room gets warm faster—no harm done.
While the term “psychrosi” does not appear in official documentation, it likely refers to psychrometric cooling or cold psychrometry . Thermexcel handles these processes accurately within its validated range. Users should be aware of its limitations regarding frost and transient behavior. The program calculates the heat flux into the cold system
Using ThermExcel in series:
In air conditioning, air is often dehumidified during cooling. The PsychroSI program facilitates the calculation of the air's state at the inlet and outlet of cooling coils (batteries). It calculates parameters such as the dry temperature, moisture, and the outside temperature of the cooling coil wall, helping engineers understand energy transfer and condensate flow.
CETIAT has validated Thermexcel against experimental data for dehumidifying coils within ±5% for capacity and ±10% for outlet RH, provided:
Why use the ThermExcel programme for psychrosi instead of a paper psychrometric chart?
: Calculating the resulting state when two air streams meet.