Programme Psychrosi: Thermexcel

This report outlines the capabilities and technical specifications of PsychroSI, a psychrometric calculation software developed by ThermExcel to automate thermal engineering and HVAC analysis within Microsoft Excel. 1. Executive Summary

PsychroSI is a VBA-powered Excel application designed for professionals in thermal engineering, HVAC design, and building management. It automates the calculation of moist air properties and complex psychrometric processes, such as air mixing, cooling with dehumidification, and swimming pool thermal balances. 2. Core Technical Capabilities

The software determines the complete state of humid air based on two known input variables: Input Combinations: Dry-bulb temperature + Relative humidity Dry-bulb temperature + Wet-bulb temperature Dry-bulb temperature + Specific humidity (moisture content) Dry-bulb temperature + Enthalpy Relative humidity + Specific humidity Specific humidity + Enthalpy

Calculated Output Parameters: Dry/Wet bulb temperatures, dew point, relative humidity, specific moisture, enthalpy, density, specific volume, and vapor pressure. 3. Key Functional Modules

Psychrometric Processes: Analysis of air mixtures with reheating, cooling, and dehumidification.

Humidification Analysis: Specialized calculations for steam water injection and its impact on air temperature and hygroscopy.

Swimming Pool Thermal Calculation: Evaluation of evaporation and heat requirements for pool environments.

Weather Data Integration: Includes a library of approximately 265 international weather sites to provide localized climatic parameters for HVAC dimensioning. 4. Software Architecture & Usability

Platform: Built as an Excel file (.xls) or add-in, utilizing Visual Basic for Applications (VBA) for automated routines.

Interface: Features a customized toolbar for accessing calculation boxes and macros.

Data Management: Users can create separate workbooks for different projects or duplicate sheets within a single file for comparative studies. 5. Professional Applications Application Primary Use Case HVAC Sizing

Dimensioning air conditioning installations based on local climate. Process Analysis Determining air states before and after vaporization. Pool Design

Calculating thermal loss and humidity control for indoor swimming areas. thermexcel programme psychrosi

If you'd like to dive deeper into a specific part of the PsychroSI program, please tell me if you're interested in:

Detailed steps for setting up a specific air-mixing calculation.

The library of weather data available for your specific region.

How to integrate PsychroSI results into other ThermExcel modules like AeroDuct or HydroTherm.

programs, sizing, piping, HVAC, heating, air ... - ThermExcel

The ThermExcel PsychroSI program is a specialized calculation tool designed for Excel that focuses on the psychrometric properties of humid air. In the professional world of HVAC engineering, it acts as a digital "brain" for sizing and optimizing air treatment systems.

Here is a short story centered on this specialized software. The Architect of Air

In the high-pressure world of industrial HVAC design, Julian was known for his precision. His current project was a massive aquatic center, a "glass bubble" where the humidity levels could easily turn a pleasant swim into a suffocating sauna. To solve it, Julian didn’t just need a calculator; he needed a master of thermodynamic states. He opened his trusty ThermExcel toolkit and launched PsychroSI.

The interface was familiar—a rational layout of Excel tables powered by Visual Basic for Applications (VBA). For Julian, the beauty of PsychroSI lay in its flexibility. He entered the indoor design conditions: dry-bulb temperature and relative humidity. Instantly, the program’s internal macros calculated the specific humidity, enthalpy, and dew point.

"Let’s see what happens when the outside winter air hits the glass," Julian muttered. Using the program's specific procedures for air mixture and reheating, he began simulating the thermal shock. PsychroSI allowed him to duplicate his calculation sheets effortlessly, testing "what-if" scenarios for heat recovery and cooling coils without losing his original data.

As he adjusted the airflows, the program automatically updated the entire assessment. He could see exactly how much energy would be spent on reheating the dehumidified air to keep the pool deck comfortable. By the time he reached the synthesis stage, Julian had a complete, currency-converted cost breakdown for the client, all exported directly from his Excel-based sizing tools.

The project was approved within the week. For the guests at the aquatic center, the air felt perfectly crisp and clear. They didn't see the complex VBA code or the psychrometric tables—they just felt the invisible hand of a perfectly programmed environment. Self-discovery and awareness : The program facilitates a

The ThermExcel Program: A Holistic Approach to Personal Growth through Psychosynthesis

The ThermExcel program is a cutting-edge, computer-based tool designed to support individuals in their personal growth and self-discovery journey. Developed within the framework of psychosynthesis, a holistic approach to psychology, the program aims to facilitate a deeper understanding of oneself and promote emotional, mental, and spiritual well-being. This essay will explore the ThermExcel program, its underlying principles, and its applications in the context of psychosynthesis.

Understanding Psychosynthesis

Psychosynthesis, developed by Roberto Assagioli, is a comprehensive and integrative approach to psychology that emphasizes the unity and wholeness of the human being. It recognizes that individuals are composed of multiple sub-personalities, each with its own thoughts, feelings, and behaviors. The goal of psychosynthesis is to foster self-awareness, self-acceptance, and self-realization, enabling individuals to transcend their limitations and actualize their full potential.

The ThermExcel Program: A Psychosynthetic Approach

The ThermExcel program is an innovative application of psychosynthesis principles, using a computer-based platform to support individuals in their personal growth journey. The program is based on the concept of the "sub-personality" and utilizes a unique, graphically-oriented approach to help users identify, understand, and integrate their various sub-personalities.

The program's core component is the "thermographic" representation of the user's emotional and psychological profile, which provides a visual map of their inner dynamics. This graphical representation allows users to identify areas of tension, conflict, and imbalance, and to track their progress over time.

Key Features and Benefits

The ThermExcel program offers several key features and benefits, including:

  1. Self-discovery and awareness: The program facilitates a deeper understanding of one's thoughts, feelings, and behaviors, allowing users to recognize patterns and dynamics that may have been previously unconscious.
  2. Emotional regulation and balance: By identifying areas of tension and imbalance, users can develop strategies to manage their emotions and cultivate a greater sense of inner peace and well-being.
  3. Integration of sub-personalities: The program supports the integration of fragmented aspects of the personality, promoting a greater sense of unity and wholeness.
  4. Personal growth and transformation: By fostering self-awareness, self-acceptance, and self-realization, the ThermExcel program enables users to transcend their limitations and actualize their full potential.

Applications and Future Directions

The ThermExcel program has a wide range of applications in various fields, including:

  1. Psychotherapy and counseling: The program can be used as a tool to support therapeutic work, facilitating a deeper understanding of the client's inner dynamics and promoting more effective interventions.
  2. Personal growth and self-development: The program can be used by individuals seeking to enhance their self-awareness, emotional regulation, and overall well-being.
  3. Education and research: The ThermExcel program can be used in educational settings to teach psychosynthesis principles and in research contexts to investigate the dynamics of the human personality.

In conclusion, the ThermExcel program represents a significant innovation in the field of psychosynthesis, offering a holistic and integrative approach to personal growth and self-discovery. By providing a deeper understanding of the human personality and promoting emotional, mental, and spiritual well-being, the program has the potential to support individuals in their journey towards self-realization and wholeness. Unlike expensive proprietary software

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2. Key Functionalities

1.1 Background

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.

Thermexcel (CETIAT, France) is a specialized software for the design and simulation of finned-tube heat exchangers. It is widely used in industry for air-cooled condensers, evaporators, and cooling coils. However, its capabilities extend to psychrometric calculations because it models both sensible and latent heat transfer when air passes below its dew point.

Advanced Psychrosi Analysis: Freeze Protection and Reheat

One critical insight from ThermExcel simulations is that after intense psychrosi, air leaves nearly saturated at a low temperature (e.g., 12°C, 95% RH). This air cannot be supplied directly to a comfort zone because it feels drafty and clammy. Therefore, the model should include a reheat coil.

Using ThermExcel in series:

  1. Process 1-2 (Psychrosi): Cooling & dehumidification.
  2. Process 2-3 (Sensible heating): Increase dry-bulb to 20°C without changing W.

To model this:

The total energy cost is the sum of psychrosi (sensible + latent) plus reheat (sensible), which ThermExcel can compute automatically.

8. Conclusion

The Thermexcel programme offers robust capabilities for simulating psychrometric processes — specifically cooling with dehumidification — in finned-tube heat exchangers. It is a valuable tool for engineers designing air handling units, evaporators, and condensers where latent load is significant.

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.

For future developments, CETIAT could enhance the software with:

What Is ThermExcel? A Brief Overview

ThermExcel is not a standalone application but a sophisticated collection of macros, formulas, and psychrometric functions embedded within Microsoft Excel. Developed primarily for HVAC engineers, it offers:

Unlike expensive proprietary software, ThermExcel leverages the universal accessibility of Excel, making professional-grade psychrometric analysis available on any laptop.