metadata

title: HVAC Load Calculator
emoji: 🔥❄️
colorFrom: blue
colorTo: indigo
sdk: streamlit
sdk_version: 1.32.0
app_file: app.py
pinned: false

HVAC Load Calculator

A modern web tool for calculating HVAC cooling and heating loads based on the ASHRAE method.

Features

Separate Calculators: Independent cooling and heating load calculators
Step-by-Step Input Forms: Guided process with validation
Reference Data: Comprehensive material properties and location data
Visual Results: Charts and tables for load components
Smart Validation: Proceed with warnings rather than blocking progress
Downloadable Data: Export results for student assignments
ASHRAE Method: Implementation based on industry-standard calculation methods
Extensible Design: Framework for adding other calculation methods or locations

How to Use

Select either the Cooling Load Calculator or Heating Load Calculator from the sidebar
Fill in the required information in each step
Review any warnings that appear (you can proceed with warnings)
Calculate results and analyze the output
Export results for your assignments

Cooling Load Calculator

The cooling load calculator helps determine the amount of heat that needs to be removed from a space to maintain comfort conditions. It accounts for:

Conduction through building envelope
Solar radiation through windows
Internal heat gains (people, equipment, lighting)
Infiltration and ventilation

Heating Load Calculator

The heating load calculator helps determine the amount of heat that needs to be added to a space to maintain comfort conditions. It accounts for:

Conduction through building envelope
Infiltration and ventilation
Annual heating energy requirements based on heating degree days

Technical Details

Built with Python and Streamlit
Modular design for extensibility
Comprehensive reference data based on ASHRAE standards
Visualization using Plotly
Data export in CSV and JSON formats

Educational Purpose

This tool is designed for educational purposes to help students understand the factors that influence HVAC load calculations. It provides a practical way to apply theoretical knowledge and see how different building parameters affect heating and cooling requirements.

Acknowledgements

Based on ASHRAE calculation methods for heating and cooling loads.