General gas equation
- isobaric state change
- isochoric state change
- isothermal state change

unit Converter
- unit conversion (pressure, power, length, temperature)
- scale converter

geometry
- Sloping ceiling with spirit level and plumb bob
- Pipe diameter based on the scope

Air line network
- pressure equation (Bernoulli equation)
- Length expansion with temperature change
- Leakage airflow
- Flow control valve

Proportionality
- speed <-> flow rate
- Pressure <-> flow rate
- power <-> flow rate)

sound calculations
- Sound level decrease
- sound level addition
- Sound level change when the fan speed changes
- Total sound level of 3 sound sources at distance x
- Fan sound power level

fans
- Drive power
- Electric motor power (DC / AC, three-phase)
- Flat belt tension
- V-belt length

flow
- design of pool ventilation (evaporation and supply air volume flow)
- Underground garage ventilation according to Bavarian garage regulations
- Design according to air exchange rate or outdoor air rate
- Nozzle coefficient (K factor) - Volume flow calculation

Heat / cold
- CO2 equivalent for refrigerant
- Cooling load estimate
- Air heater (calculate heating capacity and possible temperature spread)
- Dew point temperature
- Heat dissipation without active cooling
- Heat recovery (heat recovery rate, moisture content)

Tags
RLT, room ventilation, ventilation, ventilation, ventilation, ventilation, air conditioning