Simulation study on an air flow window system with an integrated roll screen

Jun Tanimoto, Ken Ichi Kimura

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

A numerical calculation procedure for an air flow window (AFW) system integrated with a roll screen is presented. Both heat and airflows within the window elements such as the outside pane of glass, the outside air space, a venetian blind, the inside air space and a roll screen, are taken into account by considering the thermal and air flow networks. Agreements between measured and calculated results of temperatures and pressure differences through a series of experiments carried out in an environmental test chamber were observed. To identify the quantitative characteristics of an AFW integrated with a roll screen, a series of numerical simulations were performed with the results from using a large resistance to the air flow from the upper half area of the roll screen. These show that this was effective in terms of thermal characteristics and suggest that a tightly-meshed roll screen, situtated in the upper half area, is suitable for both environmental and design reasons. If the heated air flow generated from the inside air space to the room were dispersed properly, the thermal efficiency of the AFW integrated with a roll screen would be equal to a conventional AFW system. The effect of a cold draft passing though the roll screen is also discussed.

Original languageEnglish
Pages (from-to)317-325
Number of pages9
JournalEnergy and Buildings
Volume26
Issue number3
Publication statusPublished - Dec 1 1997

Fingerprint

Air
Glass
Hot Temperature
Computer simulation
Experiments
Temperature

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Cite this

Simulation study on an air flow window system with an integrated roll screen. / Tanimoto, Jun; Kimura, Ken Ichi.

In: Energy and Buildings, Vol. 26, No. 3, 01.12.1997, p. 317-325.

Research output: Contribution to journalArticle

@article{02113e4531e64897874b36b3f2568d13,
title = "Simulation study on an air flow window system with an integrated roll screen",
abstract = "A numerical calculation procedure for an air flow window (AFW) system integrated with a roll screen is presented. Both heat and airflows within the window elements such as the outside pane of glass, the outside air space, a venetian blind, the inside air space and a roll screen, are taken into account by considering the thermal and air flow networks. Agreements between measured and calculated results of temperatures and pressure differences through a series of experiments carried out in an environmental test chamber were observed. To identify the quantitative characteristics of an AFW integrated with a roll screen, a series of numerical simulations were performed with the results from using a large resistance to the air flow from the upper half area of the roll screen. These show that this was effective in terms of thermal characteristics and suggest that a tightly-meshed roll screen, situtated in the upper half area, is suitable for both environmental and design reasons. If the heated air flow generated from the inside air space to the room were dispersed properly, the thermal efficiency of the AFW integrated with a roll screen would be equal to a conventional AFW system. The effect of a cold draft passing though the roll screen is also discussed.",
author = "Jun Tanimoto and Kimura, {Ken Ichi}",
year = "1997",
month = "12",
day = "1",
language = "English",
volume = "26",
pages = "317--325",
journal = "Energy and Buildings",
issn = "0378-7788",
publisher = "Elsevier BV",
number = "3",

}

TY - JOUR

T1 - Simulation study on an air flow window system with an integrated roll screen

AU - Tanimoto, Jun

AU - Kimura, Ken Ichi

PY - 1997/12/1

Y1 - 1997/12/1

N2 - A numerical calculation procedure for an air flow window (AFW) system integrated with a roll screen is presented. Both heat and airflows within the window elements such as the outside pane of glass, the outside air space, a venetian blind, the inside air space and a roll screen, are taken into account by considering the thermal and air flow networks. Agreements between measured and calculated results of temperatures and pressure differences through a series of experiments carried out in an environmental test chamber were observed. To identify the quantitative characteristics of an AFW integrated with a roll screen, a series of numerical simulations were performed with the results from using a large resistance to the air flow from the upper half area of the roll screen. These show that this was effective in terms of thermal characteristics and suggest that a tightly-meshed roll screen, situtated in the upper half area, is suitable for both environmental and design reasons. If the heated air flow generated from the inside air space to the room were dispersed properly, the thermal efficiency of the AFW integrated with a roll screen would be equal to a conventional AFW system. The effect of a cold draft passing though the roll screen is also discussed.

AB - A numerical calculation procedure for an air flow window (AFW) system integrated with a roll screen is presented. Both heat and airflows within the window elements such as the outside pane of glass, the outside air space, a venetian blind, the inside air space and a roll screen, are taken into account by considering the thermal and air flow networks. Agreements between measured and calculated results of temperatures and pressure differences through a series of experiments carried out in an environmental test chamber were observed. To identify the quantitative characteristics of an AFW integrated with a roll screen, a series of numerical simulations were performed with the results from using a large resistance to the air flow from the upper half area of the roll screen. These show that this was effective in terms of thermal characteristics and suggest that a tightly-meshed roll screen, situtated in the upper half area, is suitable for both environmental and design reasons. If the heated air flow generated from the inside air space to the room were dispersed properly, the thermal efficiency of the AFW integrated with a roll screen would be equal to a conventional AFW system. The effect of a cold draft passing though the roll screen is also discussed.

UR - http://www.scopus.com/inward/record.url?scp=0031246609&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031246609&partnerID=8YFLogxK

M3 - Article

VL - 26

SP - 317

EP - 325

JO - Energy and Buildings

JF - Energy and Buildings

SN - 0378-7788

IS - 3

ER -