added temp/pressure conversion formulae

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# Thermodynamic concepts

# Thermodynamics concepts

## [Heat engine][1]

# Pre-processing

## Missing temperature values

The towers timeseries occasionally have missing values for `Outside Air Temperature`, `Outside Air Humidity`, and `Ambient Wet-Bulb` temperature. However, given two values, the third can be calculated.

The following empirical and physical relationships are used:

1. [Arden Buck equation][1] relates saturation vapor pressure to temperature of moist air.

2. [Magnus formula][2], enhanced with Arden Buck fitting constants, relates dew point temperature to ambient temperature and relative humidity.

3. [Wet bulb temperature equation][3] by Roland Stull that relates ambient temperature and relative humidity.

[1]: https://en.wikipedia.org/wiki/Arden_Buck_equation

[2]: https://en.wikipedia.org/wiki/Dew_point#Calculating_the_dew_point

[3]: https://journals.ametsoc.org/doi/pdf/10.1175/JAMC-D-11-0143.1

The documentation is divided into a discussion of background concepts in physics, jargon in the HVAC industry, layout of air conditioning systems, and a description of the dataset specific to the system at ESB.

1. [Thermodynamics Basicsc](0-thermo-basics.md)

1. [Thermodynamics Basics](0-thermo-basics.md)

2. [Industry Jargon](1-industry-terms.md)

3. [Chiller systems](2-chiller.md)

4. [Coolong towers](3-cooling-tower.md)

4. [Cooling towers](3-cooling-tower.md)

5. [Dataset description](4-dataset.md)

6. [Preprocessing](5-preprocessing.md)