Engineers use ThermExcel to determine if a standard coil can achieve required dehumidification. If the calculated leaving humidity ratio is too high, you must lower the ADP (colder chilled water) or decrease the BPF (more coil rows/fins).
| Feature | Thermexcel | CoilDesigner (U. Illinois) | EVAP-COND (NIST) | |---------|------------|----------------------------|------------------| | Psychrometric model | Yes (full) | Yes | Partial | | Dehumidification | Yes | Yes | No | | Frost modeling | Basic | Advanced | No | | User interface | GUI + wizard | GUI + script | GUI | | Industry standard in Europe | High | Medium | Low (refrigeration) |
Thermexcel is preferred for European HVAC manufacturers due to CETIAT’s certification and correlations based on European fin geometries.
This report aims to:
Assume we have outside or return air at:
In ThermExcel, use the following functions in cells:
There are dozens of psychrometric calculators on the market, so why stick with Thermexcel? Here are three key reasons: thermexcel programme psychrosi
1. Integration with Spreadsheets Most HVAC load calculations are done in Excel. Thermexcel is not a separate app you have to alt-tab to; it lives right inside your spreadsheet. This allows you to link psychrometric outputs directly to your load calculation cells. If you change the outside air temperature, the enthalpy updates automatically in your calculation sheet.
2. The Visual Advantage While the numbers matter, the trends matter too. Thermexcel features dynamic psychrometric chart generation. Instead of just seeing a number, you can plot your state point on the curve. This helps engineers visually verify that the air treatment process (heating, cooling, humidification) makes sense.
3. Reversibility One of the most frustrating things about standard tables is knowing two variables and needing a third that isn't listed. Thermexcel allows you to calculate backwards. For example, if you know the Relative Humidity and the Enthalpy, the program can solve for the Dry Bulb Temperature. Engineers use ThermExcel to determine if a standard
By modeling psychrosi in a duct or air handler, you can predict if leaving air will cause condensation on downstream surfaces. ThermExcel can calculate the saturation temperature of leaving air to avoid cold spots.
At its core, the Thermexcel Psychrosi program is a calculation tool designed to determine the thermodynamic properties of moist air. It operates within the familiar interface of Microsoft Excel, making it accessible to engineers and technicians who don't have time to learn complex standalone software.
The program is built to calculate essential parameters such as: This report aims to: Assume we have outside