HVAC and building services
Ventilation heat loss
Calculates a helper sensible heat-loss estimate for an air stream from density, specific heat, flow rate and temperature difference.
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Fan power from flow and pressure rise
Calculates auxiliary fan power from volumetric flow rate, pressure rise, and efficiency.
Air heating power from flow and delta T
Estimates air heating power from volumetric flow rate and temperature difference.
Water heating power from flow and delta T
Estimates water heating power from volumetric flow rate and temperature difference.
Humid air enthalpy
Calculates a helper simplified humid-air enthalpy from dry-bulb temperature and humidity ratio.
ACH from air flow
Calculates air changes per hour from air flow and room volume.
Occupancy ventilation flow
Calculates air flow from occupant count and flow per person.