Zone Results

This section contains parameters for individual zones, such as temperature, humidity, air flow and loads. the zone result output will correspond to the selected output zones.

Dry Bulb Temperature

The zone's dry-bulb air temperature [Unit: degrees Celsius].

Mean Radiant Temperature

The mean radiant temperature (MRT) is a measure of an occupant's perception of the radiant temperature in the zone. MRT is calculated as a weighted average of the zone's surface temperatures, modified by the effects of the radiant gains (plant, incidental gains, and the diffuse component of solar gain) [Unit: degrees Celsius].

Resultant Temperature

An average of the dry-bulb temperature and the mean radiant temperature [Unit: degrees Celsius]

Sensible Load

The total power input from the plant (including both radiant and convective portions). If the value is positive, then it is a heating load. If it is negative, then it is a cooling load [Unit: Watts].

Heating Load

The total heating demand for the zone [Unit: Watts].

Cooling Load

The total cooling demand for the zone [Unit: Watts].

Solar Gain

The sum of the surface solar gains for all the surfaces facing into the zone [Unit: Watts].

Lighting Gain

This is the sensible power input from the lights. It includes both radiant and convective portions [Unit: Watts].

Infiltration Ventilation Gain

Represents the heat gained (or lost, if a negative value) by the zone due to the exchange of air between the zone and the external environment. This air exchange may arise from the air flows specified under Infiltration or Ventilation in the Internal Conditions, from specified Air Movement, or from Aperture Flows [Unit: Watts].

Air Movement Gain

Represents heat gained via inter-zone air flows, arising from specified Air Movement flows and Aperture flows [Unit: Watts]

Building Heat Transfer

Represents the sum of heat gains from two sources:

Heat entering the zone from a link, null link, or an internal building component and the heat released into the zone which has been temporarily stored in the air (positive when the air temperature is falling, negative when it is rising) [Unit: Watts].

External Conduction Opaque

This is the heat gained through the inside surfaces of opaque components exposed to the outside or touching the ground [Unit: Watts].

External Conduction Glazing

This is the heat gained through the inside surfaces of exposed transparent components [Unit: Watts].

Occupant Sensible Gain

This is the sensible power input from the occupants. It includes both radiant and convective portions [Unit: Watts]

Equipment Sensible Gain

This is the sensible power input from the equipment. It includes both radiant and convective portions [Unit: Watts]

Humidity Ratio

The zone's humidity [Unit: grams of water per kilogram of air].

Relative Humidity

The zone's relative humidity [Unit: %]

Occupancy Latent Gain

This is the latent load from the occupants [Unit: Watts]

Equipment Latent Gain

This is the latent load from the equipment [Unit: Watts]

Latent Load

The zone's latent demand. The latent load will be positive when moisture is being added to the zone, and negative when it is being removed [Unit: Watts].

Latent Removal Load

The amount of latent load needed to achieve the zone's humidity upper limit [Unit: Watts].

Latent Addition Load

The amount of latent load needed to achieve the zone's humidity lower limit [Unit: Watts].

Vapour Pressure

The vapour pressure for the zone [Unit: Newtons per square metre].

Aperture Flow In

The total amount of air flowing into the zone through the selected apertures. To use this option you must use an output selection that contains both the zone and the aperture surfaces within the zone. If you only select the zone and not the aperture, you will not see any airflow [Unit: kilograms per second].

Aperture Flow Out

The total amount of air flowing out of the zone via the selected apertures. To use this option you must use an output selection that contains both the zone and the aperture surfaces contained within that zone. If you only select the zone and not the aperture, you will not see any airflow [Unit: kilograms per second].

Infiltration

The fresh air infiltration (leakage) into the zone [Unit: kilograms per second].

Ventilation

The fresh air that enters the zone via a mechanical ventilation system [Unit: kilograms per second].

IZAM In

The air entering the room via an inter-zone air movement [Unit: kilograms per second].

IZAM Out

The air leaving the room via an inter-zone air movement [Unit: kilograms per second].

Relative Pressure

The pressure within the zone can be either positive or negative with the respect to the outside of the zone. A positive pressure will occur when there is more air being supplied to the zone than exhausted. A negative pressure will result when there is more air being removed from the zone than supplied [Unit: Newtons per square metre (Pascals)]

Pollutant

The pollutant level within the zone [Unit: parts per million (ppm)].

The actual pollutant can be anything you choose. The result will include the value assigned to the External Pollutant variable from the Building Summary screen in the Building Simulator application, and the value attributed to the Pollutant Generation (g/h/m^2) variable for the applied internal condition.