NADFLOW-en

    The new software of
    CFD digital simulation

     

     

    At the engineer's request, CFD simulations can be provided demonstrating the performance of Nad Klima's air diffusers.

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    DAL359 Vitesse 02



NADFLOW CFD Simulation


    FDD

    guide application NAD

    RDD
    NADFLOW RDD

     

    FDD

 

 

 

    DALNADFLOW DAL

    DAL359 Vitesse


    SAL
    SAL 35 - 1200 - 2 slots - DFL (BC/65)
    Air flow : 144 cfm (6 cfm/roll)
    NADFLOW SAL35

    SAL 2 1200 DFL 03
    SAL 2 1200 DFL 04

 

 

 

 

 

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    Numerical simulation
    (CFD : FDD diffuser in office space).

    Temperature velocity profiles, Mean Air Age (LMA) and PPD and PMV comfort parameters according to ASHRAE 55 will allow you to validate the design of each project.

    Laboratory tests -
    FDD ( Flexible Duct Diffuser )

    Interieur Laboratoire 02


    Interieur Laboratoire 03

    CFD Model

    FDD Velocity   
           CFD - Velocity profile

    FDD LMA
          Local Mean Age of air (LMA)

    FDD Temperature
            CFD - Velocity profile

    FDD PMV
          Predicted Mean Vote (PMV)

       
       

 

 

Ez≥1.1

THE EFFICIENCY OF AIR DIFFUSION (EZ)
OF THE HIGH INDUCTION DAL 358 DIFFUSER

EQUAR OR GREATER
Ez ≥ 1.1

 

Within applicable fields of DAL 358, this factor can officially be considered in the calculation of the amount of fresh air necessary for a building utilizing heating through the ceiling with a temperature of 15˚F (8˚C) superior to the room temperature with air returns in the ceiling. Test conducted by the NRC and comply according to ASHRAE Standard 129. The application of ASHRAE 62.1 is mandatory in the NBC-Canada.

In addition to the optimal IAQ, the usage of the DAL 358 requires approximately 27% less fresh air when compared to a traditional cone diffuser with an Ez factor of 0.8 .

The DAL 358 diffuser also has other numerous important benefits which lead to :
• Reduction of construction costs
  (possibility of eliminating second stage heating in the peripheral zone, less diffusers ) See " Heating through the ceiling "

• Energy saving

  (destratification of the heat between the floor and ceiling)

• Lower operation costs

  (reduction of complains of the comfort and possibility of reducing insurance  premiums related to fire hazards)

 

Ez ≥ 1.0

THE EFFICIENCY OF AIR DIFFUSION (EZ)
OF THE HIGH INDUCTION DAL 359 DIFFUSER

EQUAL OR GREATER  
Ez ≥ 1.0

 

Within applicable fields of DAL 359, this factor can officially be considered in the calculation of the amount of fresh air necessary for a building utilizing heating through the ceiling with a temperature of 8˚C (15˚F) superior to the room temperature with air returns in the ceiling. Test conducted by the NRC and comply according to ASHRAE Standard 129. The application of ASHRAE 62.1 is mandatory in the NBC-Canada.

In addition to the optimal IAQ, the usage of the DAL 359 requires approximately 20% less fresh air when compared to a traditional cone diffuser with an Ez factor of 0.8 .

The DAL 359 diffuser also has other numerous important benefits which lead to :
• Reduction of construction costs
  (possibility of eliminating second stage heating in the peripheral zone, less diffusers ) See " Heating through the ceiling "

• Energy saving

  (destratification of the heat between the floor and ceiling)

• Lower operation costs

  (reduction of complains of the comfort and possibility of reducing insurance  premiums related to fire hazards)

 

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