Elite Software Chvac Load Calculations - Starting up and using defaults

Introduction

This tutorial provides a step-by-step guide on using the Chvac software for calculating heating and cooling loads in commercial buildings. It covers the initial setup, key inputs, and default settings that will help you get started with your project efficiently.

Step 1: Starting a New Project

1. Open the Chvac software on your Windows computer.
2. Select the option to create a new project.
3. Enter the project name and relevant details such as location and building type.
4. Explore the provided templates for different building types, which can save time on initial inputs.

Step 2: Understanding Key Initial Inputs

1. Location Data

   • Input the geographical location of the building. This affects climate data used for calculations.
   • Use the default settings or modify them based on local weather patterns.

2. Building Characteristics

   • Specify the building’s dimensions, including floor area, number of floors, and ceiling height.
   • Input the type of construction materials used, as these will influence thermal performance.

3. Occupancy and Usage Patterns

   • Define the building's occupancy type (e.g., office, retail, etc.).
   • Set expected occupancy levels and schedules to accurately calculate load demands.

Step 3: Utilizing Default Settings

1. Review the default settings provided by Chvac for various parameters:
   • These include internal heat gains, ventilation rates, and equipment loads.
2. Adjust defaults where necessary to match specific project requirements, such as high-efficiency equipment or unique occupancy patterns.

Step 4: Choosing Calculation Methods

1. Select between the ASHRAE CLTD (Cooling Load Temperature Difference) and RTS (Radiant Time Series) methods:
   • ASHRAE CLTD is typically used for more straightforward calculations.
   • RTS may be preferred for buildings with complex thermal characteristics.
2. Set your preference in the software settings to streamline the calculation process.

Step 5: Running the Load Calculation

1. Once all inputs are set, navigate to the calculation options.
2. Run the load calculation to generate results.
3. Review the output data for heating and cooling loads, ensuring to check for any discrepancies or errors in the input data.

Conclusion

By following these steps, you can efficiently set up your project in Chvac and utilize its features to calculate heating and cooling loads for commercial buildings. Remember to double-check your inputs and review the calculation methods to ensure accuracy in your results. For further learning, consider exploring Chvac’s advanced features and conducting detailed analyses based on your project needs.