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SpanishPsychroSI’s iterative wet‑bulb algorithm yields errors of at most 0.1 °C, which is well within the uncertainty of most field measurements. The programme uses standard psychrometric relationships (e.g. the Magnus‑Tetens approximation for vapour pressure) and assumes that the total pressure is standard atmospheric pressure, unless a local barometric correction is manually applied. For most HVAC design work, this level of accuracy is perfectly adequate.
The program adapts to multiple thermal modeling environments through dedicated macro-driven calculation procedures. 1. Air Handling Unit (AHU) Engineering & Air Mixing For commercial climate control, mass flow rates (
The ThermExcel program has a wide range of applications in various fields, including:
: Determines all physical parameters of moist air based on two input elements, such as dry temperature and relative humidity, or enthalpy and specific moisture.
You can insert new worksheets or duplicate existing ones within the same file to compare different design scenarios for the same project.
Ensure the ThermExcel add-in is activated. You should see custom functions like Psychro , TDew , W , h , and CoilProcess . If not, install the .xlam file following the developer’s instructions.
The is a highly specialized, VBA-driven Excel software designed for HVAC engineers, thermal designers, and building consultants to perform complex psychrometric calculations of humid air . Operating seamlessly within Microsoft Excel, PsychroSI automates thermodynamics modeling, air-mixing processes, and specific thermal applications like indoor swimming pool sizing.
ThermExcel's PsychroSI is built as an Excel-based tool , making it highly accessible for professionals already using spreadsheets for engineering.
All of this can be done without leaving the Excel environment, which demonstrates why the “thermexcel programme psychrosi” is such a valued tool among practitioners.
programs, sizing, piping, HVAC, heating, air ... - ThermExcel
programs, sizing, piping, HVAC, heating, air ... - ThermExcel
combined with relative humidity, wet-bulb temperature, specific moisture, or enthalpy. Relative humidity paired with specific moisture. Specific moisture and enthalpy .
Calculating the required cooling and heating capacities.
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