A holistic microclimate model

[PMV] Section

Purpose

Besides of calculating pure meteorological data, ENVI-met also includes a simple biometeorological model to predict the thermal comfort inside the model area. The PMV (predicted mean vote) model is probably the best know biomet model. Based on Fangers (1972) model, it relates the energy balance of the human body to the personal comfort feeling of persons exposed to the corresponding climates.

Click here to get more information on the PMV model.

To use the PMV-model, you need to add the “PMV”-section to the .CF file:

00: [PMV] ______________Settings for PMV-Calculation
01: Walking Speed (m/s)                          0.0
02: Energy-Exchange (Col. 2 M/A)                 116
03: Mech. Factor                                 0.0
04: Heat transfer resistance cloths              0.5

What do the lines mean?

01: Walking Speed

Speed of the reference person walking around.

02: Energy Exchange

The energy exchange inside the human body is a function of the metabolic rate and the mechanical work by the body.
Click here to get more information about typical values for Energy Exchange.

03: Mechanical Factor

Ration between work and metabolism. See Energy Exchange for values.

=== 04: Heat transfer resistance cloths ===

Insert the clo value averaged over the whole body. Click here to see a list of typical clo-values.

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