Psychrometric Analysis Design Template

Psychrometric analysis quantifies the thermodynamic state of moist air using interrelated properties such as dry-bulb temperature, wet-bulb temperature, relative humidity, dew-point temperature, humidity ratio, specific enthalpy, and specific volume. The Design Template structures this analysis by prescribing input parameters (e.g., ambient conditions, process requirements), required calculations (e.g., sensible/latent load splits, coil bypass factors), and output validation criteria (e.g., supply air conditions meeting space setpoints). It enforces adherence to internationally accepted standards—primarily ASHRAE Fundamentals—and supports iterative design workflows, including cooling/heating coil selection, humidification/dehumidification sizing, and ventilation rate optimization. In practice, the template often includes embedded lookup tables, unit conversion safeguards, error-checking logic (e.g., verifying that relative humidity remains between 0–100%), and annotations for assumptions (e.g., barometric pressure, altitude correction). Its modular structure allows integration with building performance simulation tools (e.g., EnergyPlus, TRNSYS) and facilitates compliance reporting for LEED, ASHRAE Standard 62.1, or ISO 7730 thermal comfort assessments.