Bewertungssystem Nachhaltiges Bauen (BNB)
Neubau Büro- und Verwaltungsgebäude
Kriterium:
Thermischer Komfort
Bewertungen anhand BNB Komfort Tool
Zone Name:

1. Operative Temperature: Summer

1.1 Selected Assessment Model

Summer Assessment ModelDIN 4108-2
26 °CN/A

1.2 Boundary conditions for calculation or measurement (see Appendix 1)

1.3 Operating Times

StartEndat Weekends
Operation Times8:00 h18:00 hno

1.4 Operative Temperature Distribution

To <= 2424 <= To < 2525 <= To < 2626 <= To < 2727 <= To < 2828 <= To < 2929 <= To < 3030 <= ToTotal
Hours (h)013000000001300

1.5 Time outside the category limit

Duration (h)Percent of operating time (%)Degree hour (k h)
Quality niveau I000

1.6 Points

Operative temperature70

2. Draft: Summer

2.1 Type of air supply system

Mechanical ventilationYes
Window ventilationNo

2.1 Boundary conditions for the calculation (Mechanical ventilation)

Data sheetAir temperature (°C)Air velocity (m/s)Turbulence intensity (%)
See appendix 2260.120

2.3 Draft Rate (DR) calculation

DR (%)Category BNB (15%) fulfilled / not fulfilled
4.84Pass

2.5 Points (after interpolated assessment)

Draft10

3. Asymmetric radiation and floor temperature: Summer

3.1 Position in the room

Width (W): XpDepth (D): YpHeight (Z): sitting or standing
Room663
Position310.6
Grafik Position vom Raum

3.2 Boundary conditions: asymmetric radiation (for surface cooling. data sheet: see appendix 3)

Surface temperature (°C)Temperature of cool or hot surfaces(°C)
Front wall26Not defined
Back wall26Not defined
Right wall26Not defined
Left wall26Not defined
Floor26Not defined
Ceiling2616

3.3 3.3 Calculations: asymmetric radiation

Percentage of dissatisfied due to radiation asymmetry (%)Quality according to BNB
Asymmetry front/back0.00Pass
Asymmetry right/left0.00Pass
Asymmetry floor/ceiling0.06Pass

3.4 Points

Radiation asymmetry10

4. Indoor Humidity: Summer

4.1 Boundary conditions for the calculation

Space Volume (m³)Infiltration (HVAC)(1/h)Air changes per hour (1/h): Winter Air changes per hour (1/h): Transition timeAir changes per hour (1/h): SummerNumber of personsOther humidity sources
1080.20.82230
Number of big plantsNumber of small plantsHumidity Recovery (-): WinterHumidity Recovery (-): Transition timeHumidity Recovery (-): SummerPressure (Pa)
01000100000

4.2 Distribution of the absolute humidity (AH) in summer period (01.April. – 30. Sept.)

AH < 22 <= AH < 44 <= AH < 66 <= AH < 88 <= AH < 1010 <= AH < 1212 <= AH < 1414 <= AH < 1616 <= AH < 1818 < AHTotal
Hours (h)0.027.0135.0371.0419.0332.013.00.01.02.01300.0

4.3 Time outside the category limit

Frequency above upper limit 12 g/kgRatio of operating time (%)
161.2

4.4 Points

Indoor Humidity10.0

1. Operative Temperature: Winter

1.1 Boundary Conditions

1.2 Operative Temperature Distribution

To <= 1919 <= To < 2020 <= To < 2121 <= To < 2222 <= To < 2323 <= To < 2424 <= To < 25To <= 25Total
Hours (h)01299031291290001290

1.3 Time outside the category limit

Duration (h)Percent of operating time (%)Degree hour (k h)
Quality niveau I12910194

1.4 Points

Operative temperature0

2. Draft:Winter

2.1 Type of air supply system

Mechanical ventilationYes
Window ventilationNo

2.1 Boundary conditions for the calculation (Mechanical ventilation)

Data sheetAir temperature (°C)Air velocity (m/s)Turbulence intensity (%)
See appendix 2200.1530

2.3 Draft Rate (DR) calculation

DR (%)Category BNB (15 %) fulfilled / not fulfilled
16.14Fail

2.5 Points (after interpolated assessment)

Draft15

3. Asymmetric radiation and floor temperature: Winter

3.1 Position in the room

Width (W): XpDepth (D): YpHeight (Z): sitting or standing
Room663
Position310.6
Grafik Position vom Raum

3.2 Boundary conditions: asymmetric radiation (for surface cooling. data sheet: see appendix 3)

Surface temperature (°C)Temperature of cool or hot surfaces(°C)
Front wall2016
Back wall20Not defined
Right wall20Not defined
Left wall20Not defined
Floor20Not defined
Ceiling20Not defined

3.3 3.3 Calculations: asymmetric radiation

Percentage of dissatisfied due to radiation asymmetry (%)Quality according to BNB
Asymmetry front/back0.32Pass
Asymmetry right/left0.00Pass
Asymmetry floor/ceiling0.00Pass

3.4 Points

Radiation asymmetry20

4. Indoor Humidity: Winter

4.1 Boundary conditions for the calculation

Space Volume (m³)Infiltration (HVAC)(1/h)Air changes per hour (1/h): Winter Air changes per hour (1/h): Transition timeAir changes per hour (1/h): SummerNumber of personsOther humidity sources
1080.20.82230
Number of big plantsNumber of small plantsHumidity Recovery (-): WinterHumidity Recovery (-): Transition timeHumidity Recovery (-): SummerPressure (Pa)
01000100000

4.2 Distribution of the relative humidity (RH) in winter period (01. Oct. – 31. Mar.)

RH <= 1010 <= RH < 2020 <= RH < 3030 <= RH < 4040 <= RH < 5050 <= RH < 6060 <= RH < 7070 <= RH < 8080 <= RH < 9090 <= RHTotal
Hours (h)0.015.0267.0633.0279.084.012.00.00.00.01290.0

4.3 Time outside the category limit

Frequency below lower limit 25% RHRatio of operating time (%)
786.0

4.4 Points

Indoor Humidity24.0
BNB Komfort Tool