Validation of Dynamic Model BSim to Predict the Performance of Ventilative Cooling in a Single Sided Ventilated Room

Michal Zbigniew Pomianowski, Rens Smal, Flourentzos Florentzou, Per Kvols Heiselberg

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

Resumé

Ventilative cooling (VC) is an application (distribution in time and space) of air flow rates to reduce cooling loads in spaces using outside air driven by natural, mechanical or hybrid ventilation strategies. VC reduces overheating in both existing and new buildings - being both a sustainable and energy efficient solution to improve indoor thermal comfort. VC is promising low energy cooling technology that has potential to substantially reduce the use of mechanical cooling in airtight and highly insulated buildings. However, architects and engineers are skeptic to apply natural VC in their building design due to the uncertainty in the prediction of energy performance and thermal comfort.

Firstly, BSim software, that is a whole building simulation tool, is validated according to procedure proposed in EN 15255 standard (Thermal performance of buildings – Sensible room cooling load calculation – General criteria and validation procedures). The aim of validation according to standard is to control if BSim modules provide reliable results and would not cause the discrepancy between measured and simulated operative temperature.

Secondly, simulated operative temperatures for five different ventilation system configurations are compared to on-site building measurements of a single sided ventilated office room.

Paper shows that simulation model is capable of estimating the operative temperature during a summer period reasonably accurate. The maximum obtained deviation of the simulated operative temperature for five different system configurations, is within -19% and 5.1%.

Moreover, out of 13 selected validation cases proposed in EN 15255, 11 have passed and 2 have not pass the validation procedure. The paper provides explanation for the 2 cases that did not pass the validation procedure and share the conclusions drawn from validation procedure.
OriginalsprogEngelsk
TitelProceedings of the 39th AIVC Conference, 7th TightVent Conference and 5th venticool Conference : Smart Ventilation for buildings
Antal sider10
Udgivelses stedAntibes Juan-Les-Pins, France
Publikationsdato2018
StatusUdgivet - 2018
Begivenhed39th AIVC Conference: "Smart ventilation for buildings" - Antibes Juan-Les-Pins, Frankrig
Varighed: 18 sep. 201819 sep. 2018
Konferencens nummer: 39
http://aivc2018conference.org/

Konference

Konference39th AIVC Conference: "Smart ventilation for buildings"
Nummer39
LandFrankrig
ByAntibes Juan-Les-Pins
Periode18/09/201819/09/2018
Internetadresse

Fingerprint

Dynamic models
Cooling
Thermal comfort
Ventilation
Temperature
Air
Loads (forces)
Flow rate
Engineers

Emneord

  • Ventilative cooling
  • Natural ventilation
  • Dynamic simulation
  • Validation

Citer dette

Pomianowski, M. Z., Smal, R., Florentzou, F., & Heiselberg, P. K. (2018). Validation of Dynamic Model BSim to Predict the Performance of Ventilative Cooling in a Single Sided Ventilated Room. I Proceedings of the 39th AIVC Conference, 7th TightVent Conference and 5th venticool Conference: Smart Ventilation for buildings Antibes Juan-Les-Pins, France.
Pomianowski, Michal Zbigniew ; Smal, Rens ; Florentzou, Flourentzos ; Heiselberg, Per Kvols. / Validation of Dynamic Model BSim to Predict the Performance of Ventilative Cooling in a Single Sided Ventilated Room. Proceedings of the 39th AIVC Conference, 7th TightVent Conference and 5th venticool Conference: Smart Ventilation for buildings. Antibes Juan-Les-Pins, France, 2018.
@inproceedings{18f43f25814e4935b41e618cc26386ca,
title = "Validation of Dynamic Model BSim to Predict the Performance of Ventilative Cooling in a Single Sided Ventilated Room",
abstract = "Ventilative cooling (VC) is an application (distribution in time and space) of air flow rates to reduce cooling loads in spaces using outside air driven by natural, mechanical or hybrid ventilation strategies. VC reduces overheating in both existing and new buildings - being both a sustainable and energy efficient solution to improve indoor thermal comfort. VC is promising low energy cooling technology that has potential to substantially reduce the use of mechanical cooling in airtight and highly insulated buildings. However, architects and engineers are skeptic to apply natural VC in their building design due to the uncertainty in the prediction of energy performance and thermal comfort.Firstly, BSim software, that is a whole building simulation tool, is validated according to procedure proposed in EN 15255 standard (Thermal performance of buildings – Sensible room cooling load calculation – General criteria and validation procedures). The aim of validation according to standard is to control if BSim modules provide reliable results and would not cause the discrepancy between measured and simulated operative temperature.Secondly, simulated operative temperatures for five different ventilation system configurations are compared to on-site building measurements of a single sided ventilated office room.Paper shows that simulation model is capable of estimating the operative temperature during a summer period reasonably accurate. The maximum obtained deviation of the simulated operative temperature for five different system configurations, is within -19{\%} and 5.1{\%}.Moreover, out of 13 selected validation cases proposed in EN 15255, 11 have passed and 2 have not pass the validation procedure. The paper provides explanation for the 2 cases that did not pass the validation procedure and share the conclusions drawn from validation procedure.",
keywords = "Ventilative cooling, Natural ventilation, Dynamic simulation, Validation, Ventilative cooling, Natural ventilation, Dynamic simulation, Validation",
author = "Pomianowski, {Michal Zbigniew} and Rens Smal and Flourentzos Florentzou and Heiselberg, {Per Kvols}",
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Pomianowski, MZ, Smal, R, Florentzou, F & Heiselberg, PK 2018, Validation of Dynamic Model BSim to Predict the Performance of Ventilative Cooling in a Single Sided Ventilated Room. i Proceedings of the 39th AIVC Conference, 7th TightVent Conference and 5th venticool Conference: Smart Ventilation for buildings. Antibes Juan-Les-Pins, France, 39th AIVC Conference: "Smart ventilation for buildings", Antibes Juan-Les-Pins, Frankrig, 18/09/2018.

Validation of Dynamic Model BSim to Predict the Performance of Ventilative Cooling in a Single Sided Ventilated Room. / Pomianowski, Michal Zbigniew; Smal, Rens; Florentzou, Flourentzos; Heiselberg, Per Kvols.

Proceedings of the 39th AIVC Conference, 7th TightVent Conference and 5th venticool Conference: Smart Ventilation for buildings. Antibes Juan-Les-Pins, France, 2018.

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

TY - GEN

T1 - Validation of Dynamic Model BSim to Predict the Performance of Ventilative Cooling in a Single Sided Ventilated Room

AU - Pomianowski, Michal Zbigniew

AU - Smal, Rens

AU - Florentzou, Flourentzos

AU - Heiselberg, Per Kvols

PY - 2018

Y1 - 2018

N2 - Ventilative cooling (VC) is an application (distribution in time and space) of air flow rates to reduce cooling loads in spaces using outside air driven by natural, mechanical or hybrid ventilation strategies. VC reduces overheating in both existing and new buildings - being both a sustainable and energy efficient solution to improve indoor thermal comfort. VC is promising low energy cooling technology that has potential to substantially reduce the use of mechanical cooling in airtight and highly insulated buildings. However, architects and engineers are skeptic to apply natural VC in their building design due to the uncertainty in the prediction of energy performance and thermal comfort.Firstly, BSim software, that is a whole building simulation tool, is validated according to procedure proposed in EN 15255 standard (Thermal performance of buildings – Sensible room cooling load calculation – General criteria and validation procedures). The aim of validation according to standard is to control if BSim modules provide reliable results and would not cause the discrepancy between measured and simulated operative temperature.Secondly, simulated operative temperatures for five different ventilation system configurations are compared to on-site building measurements of a single sided ventilated office room.Paper shows that simulation model is capable of estimating the operative temperature during a summer period reasonably accurate. The maximum obtained deviation of the simulated operative temperature for five different system configurations, is within -19% and 5.1%.Moreover, out of 13 selected validation cases proposed in EN 15255, 11 have passed and 2 have not pass the validation procedure. The paper provides explanation for the 2 cases that did not pass the validation procedure and share the conclusions drawn from validation procedure.

AB - Ventilative cooling (VC) is an application (distribution in time and space) of air flow rates to reduce cooling loads in spaces using outside air driven by natural, mechanical or hybrid ventilation strategies. VC reduces overheating in both existing and new buildings - being both a sustainable and energy efficient solution to improve indoor thermal comfort. VC is promising low energy cooling technology that has potential to substantially reduce the use of mechanical cooling in airtight and highly insulated buildings. However, architects and engineers are skeptic to apply natural VC in their building design due to the uncertainty in the prediction of energy performance and thermal comfort.Firstly, BSim software, that is a whole building simulation tool, is validated according to procedure proposed in EN 15255 standard (Thermal performance of buildings – Sensible room cooling load calculation – General criteria and validation procedures). The aim of validation according to standard is to control if BSim modules provide reliable results and would not cause the discrepancy between measured and simulated operative temperature.Secondly, simulated operative temperatures for five different ventilation system configurations are compared to on-site building measurements of a single sided ventilated office room.Paper shows that simulation model is capable of estimating the operative temperature during a summer period reasonably accurate. The maximum obtained deviation of the simulated operative temperature for five different system configurations, is within -19% and 5.1%.Moreover, out of 13 selected validation cases proposed in EN 15255, 11 have passed and 2 have not pass the validation procedure. The paper provides explanation for the 2 cases that did not pass the validation procedure and share the conclusions drawn from validation procedure.

KW - Ventilative cooling

KW - Natural ventilation

KW - Dynamic simulation

KW - Validation

KW - Ventilative cooling

KW - Natural ventilation

KW - Dynamic simulation

KW - Validation

M3 - Article in proceeding

BT - Proceedings of the 39th AIVC Conference, 7th TightVent Conference and 5th venticool Conference

CY - Antibes Juan-Les-Pins, France

ER -

Pomianowski MZ, Smal R, Florentzou F, Heiselberg PK. Validation of Dynamic Model BSim to Predict the Performance of Ventilative Cooling in a Single Sided Ventilated Room. I Proceedings of the 39th AIVC Conference, 7th TightVent Conference and 5th venticool Conference: Smart Ventilation for buildings. Antibes Juan-Les-Pins, France. 2018