The is far more than a simple psychrometric calculator. It is a professional‑grade, Excel‑integrated tool that accurately models all the fundamental processes affecting humid air – from simple heating and cooling, through adiabatic humidification and evaporative cooling, to air mixing and swimming‑pool dehumidification. Its iterative wet‑bulb algorithm, multiple input options, and direct integration with the wider ThermExcel suite make it an ideal choice for HVAC engineers, building service designers, and industrial process engineers who need reliability, flexibility, and a familiar spreadsheet environment.
Whether you are designing a new air conditioning system, analyzing a cooling process, or calculating the energy requirements for a swimming pool, provides the necessary tools to streamline your workflow. What is ThermExcel PsychroSI?
The key input for psychrosi is the or the coil surface temperature. Let’s set:
For energy-efficient cooling in arid climates, the program calculates . When unsaturated air encounters recycled water spray, the water evaporates without external heat transfer. The sensible heat of the air converts into latent heat, causing the dry bulb temperature to fall while the relative humidity rises along a constant enthalpy line. Présentation du programme PsychroSI - ThermExcel thermexcel programme psychrosi
Implementation and Next Steps
The ThermExcel programme offers several benefits for individuals with psychroisis:
A critical feature for ventilation and AHU (Air Handling Unit) design is the ability to mix two air streams (e.g., outdoor air and return air). allows you to define the state of two airflows (dry temperature, humidity, mass flow rate) and instantly calculates the resulting state and properties of the mixed air. 3. Psychrometric Process Analysis The is far more than a simple psychrometric calculator
The software uses iterative calculation methods to ensure high precision, typically within a margin of error of
Psychrometric processes — including sensible cooling, cooling with dehumidification, evaporative cooling, and frost prevention — are central to air conditioning, refrigeration, and industrial drying. Designing efficient heat exchangers for such processes requires precise modeling of heat and mass transfer between air and a refrigerant or chilled water.
While PsychroSI focuses on air calculations, it is part of a broader ecosystem of specialized tools available on the same platform, all of which utilize the power of Excel spreadsheets: Whether you are designing a new air conditioning
The (often referred to simply as Psychro ) program is a professional psychrometric calculation software developed by ThermExcel for the HVAC and thermal engineering industries. It is designed as an advanced Excel-based tool for calculating the physical properties of humid air and simulating complex air-treatment processes. Core Functionality
: Select the transformation type (e.g., sensible heating, cooling with condensation). Review Heat Loads
Mechanisms of Action (Hypothesized)
Includes a library of approximately 265 international weather sites to provide localized climatic parameters for HVAC dimensioning. 4. Software Architecture & Usability