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.
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------------------------------------------------- | PSYCHROSI – DYNAMIC SIMULATOR v2.0 | ------------------------------------------------- | [Psychrometric Chart Live View] | | (dot moves as you change sliders) | | | | Current Zone: 22.0°C DB | 50% RH | 11.1°C DP | | | | --- LOADS --- | | Sensible: [====|===] 2500 W | | Latent: [==|=====] 800 W | | SHR = 0.76 | | | | --- COLD SURFACE CHECK --- | | Wall Temp: [12.0°C] → 🔴 CONDENSATION RISK | | | | --- COIL EXIT (after cooling) --- | | Supply: 13.5°C DB | 12.8°C WB | 91% RH | | ⚠️ Fogging risk: ΔT = 0.7°C (critical) | -------------------------------------------------
Includes a built-in library of climatic data for different locations to assist in sizing installations. 4. Specialized Modules: Swimming Pool Thermal Calculations
: Determines sensible and latent heat, as well as the enthalpy of the air. ThermExcel Software Versions
But let’s face it: manually calculating wet-bulb temperatures, enthalpy, and dew points using psychrometric formulas is tedious and prone to error. Enter , a suite of Excel-based tools that has become a staple for engineers. Today, we are focusing on one of its most powerful modules: the Psychrosi (Psychrometric) Program .