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2. File:Temperature-relative humidity chart - PMV method.pdf

   en.wikipedia.org/wiki/File:Temperature-relative...

   The representation is made on a temperature-relative humidity, instead of a standard psychrometric chart. The comfort zone in blue represents the 90% of acceptability, which means the conditions between -0.5 and +0.5 PMV, or PPD < 10%.

3. Skew-T log-P diagram - Wikipedia

   en.wikipedia.org/wiki/Skew-T_log-P_diagram

   A skew-T log-P diagram is one of four thermodynamic diagrams commonly used in weather analysis and forecasting. In 1947, N. Herlofson proposed a modification to the emagram that allows straight, horizontal isobars and provides for a large angle between isotherms and dry adiabats , similar to that in the tephigram .

4. Thermo-hygrograph - Wikipedia

   en.wikipedia.org/wiki/Thermo-hygrograph

   A thermo-hygrograph. A thermo-hygrograph or hygrothermograph is a chart recorder that measures and records both temperature and humidity (or dew point).Similar devices that record only one parameter are a thermograph for temperature and hygrograph for humidity.

5. Humidex - Wikipedia

   en.wikipedia.org/wiki/Humidex

   When the temperature is 30 °C (86 °F) and the dew point is 15 °C (59 °F), the humidex is 34. If the temperature remains 30 °C (86 °F) and the dew point rises to 25 °C (77 °F), the humidex rises to 42. The humidex is higher than the U.S. heat index at equal temperature and relative humidity. The humidex formula is as follows: [7] [8]

6. Thermodynamic diagrams - Wikipedia

   en.wikipedia.org/wiki/Thermodynamic_diagrams

   Consider a gas in cylinder with a free floating piston resting on top of a volume of gas V 1 at a temperature T 1. If the gas is heated so that the temperature of the gas goes up to T 2 while the piston is allowed to rise to V 2 as in Figure 1, then the pressure is kept the same in this process due to the free floating piston being allowed to ...

7. Lifting condensation level - Wikipedia

   en.wikipedia.org/wiki/Lifting_condensation_level

   The LCL can be either computed or determined graphically using standard thermodynamic diagrams such as the skew-T log-P diagram or the tephigram.Nearly all of these formulations make use of the relationship between the LCL and the dew point, which is the temperature to which an air parcel needs to be cooled isobarically until its RH just reaches 100%.

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9. Psychrometrics - Wikipedia

   en.wikipedia.org/wiki/Psychrometrics

   Determining the effect of temperature change on relative humidity: For air of a fixed water composition or moisture ratio, find the starting relative humidity from the intersection of the wet and dry bulb temperature lines. Using the conditions from the previous example, the relative humidity at a different dry bulb temperatures can be found ...