Determination of adjacent space temperature

Product	InstalSystem 5
Type of article	TIP&TRICK
Source for translation	2025-05-23

Problem description

The temperature of the adjacent space should be taken into account during Thermal calculations of building.
There are several variants to Determine temperature of adjacent space in the program:

• Acc. to standard,
• Acc. to standard Observe Δθ_ij.,
• Acc. to standard ,
• Acc. to standard Observe Δθ_ij. ,
• Always adopt design temperature of adjacent space.
  

  

  1. Determine temperature of adjacent space.

  
  

Note: Calculation variants above do not apply to rooms in a Building unit noted as Temperatures of adjacent spaces equal to design.

2. Temperatures of adjacent spaces equal to design.

Solution

Acc. to standard

The Temperature on other side of the Partition located between rooms from different units is counted as follows:

θ_os = (θ_i,H + θ_m,e) / 2

θ_i,H - Design room temperature,

θ_m,e - Annual mean external temperature.

3. Temperature on other side.

Acc. to standard Observe Δθ_ij.

The Temperature on other side of the Partition located between rooms from different units is counted as follows:

θ_os = (θ_i,H + θ_m,e) / 2

θ_i,H - Design room temperature,
θ_m,e - Annual mean external temperature.

However, if the calculated θ_os value is higher than the actual design Temperature on other side, the program for this section assumes the actual design temperatures (for both rooms).

Always adopt design temperature of adjacent space

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