Heat transfer through a double pane window with an insulation screen open at the top

Medved, Sašo; Novák, Peter

doi:10.1016/s0378-7788(98)00005-x

Cited by 16 publications

(10 citation statements)

References 9 publications

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“…They numerically determined the effect of the permeable screen on the temperature field, the flow field, and the overall heat transfer rate. Medved and Novak [6] investigated heat transfer through a double pane window with a screen and siphon which formed a semi-open cavity using PHOENICS, a commercially available CFD package. Muneer and Han [7] presented an analysis for the calculation of the convective heat transfer in the doubleglazed window enclosure.…”

Section: Introductionmentioning

confidence: 99%

Conjugate heat transfer analysis of double pane windows

Aydın

2006

Building and Environment

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Section: Introductionmentioning

confidence: 99%

Conjugate heat transfer analysis of double pane windows

Aydın

2006

Building and Environment

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“…Among numerical investigations on open or closed double-glazed windows with natural convection, we can find the work performed by Medved and Novak. 8 They evaluated the conjugated heat transfer in a double pane window with a screen and a siphon forming a semi-open cavity. The cavity was formed by lowering blinds or closing screens over the outer side of the window.…”

Section: Introductionmentioning

confidence: 99%

Modelling of an energy-efficient open double-glazing unit for the main climatic conditions of Mexico

Noh-Pat

Gijón-Rivera

Xamán

et al. 2019

Indoor and Built Environment

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The annual thermal evaluation of an open double-glazing unit (ODGU) is presented. The ODGU was modelled using two double-glazing configurations: DCC (clear glass + air + clear glass) and DCA (clear glass + air + absorbent glass). Numerical simulations were performed for the warmest design-day on each month of 2016 in four different climatic conditions in Mexico. The pseudo-transient simulations were carried out using an in-house code based on the finite volume method. To obtain the results, 5856 computational runs were necessary. From the results, the DCA configuration was observed to show the best thermal performance to reduce heat flux that passes through the inside space in the extreme warm dry climate with average reductions of 97 W/m2, followed by the semi-arid climate with 84 W/m2 and the tropical wet and dry climate with 82 W/m2 on a yearly basis. On an annual average, the DCA configuration in the extreme warm dry climate reached almost twice the mass flow rates than those observed in the temperate climate. From the numerical simulations, we have concluded that the use of the low-cost DCA configuration in warm climates was the best solar passive strategy for saving energy in buildings throughout the year.

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“…For example, airflow windows can provide additional benefits of allowing a flow of outside or room air stream to remove the absorbed solar energy in glass panes [4]. Other than the use of CFD tools [5][6][7][8], integrated thermal and airflow networks are commonly used in the numerical analysis of airflow windows. Based on these, Tanimoto and Kimura [9] developed a computation procedure to study an airflow window system with an integrated roll screen.…”

Section: Introductionmentioning

confidence: 99%

Experimental evaluation of ventilated glazing performance in Hong Kong

Chow

Chan

et al. 2009

Int. J. Energy Res.

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SUMMARYWindow glazing affects much the indoor environment and the energy use in buildings. While double glazing has better thermal performance than single glazing, the airflow window options carry additional advantage of directly removing the absorbed solar energy in glass panes. This paper reports an experimental study in Hong Kong in evaluating the thermal/energy performance of the above-mentioned glazing systems. A new approach of using numerical simulation technique to improve the quality of experimental analysis was introduced. Our findings show that the natural-ventilated glazing system has a better thermal performance than the double-glazing system since the latter received 13.6% more convective heat gain. The main advantage of the exhaust-ventilated glazing system lies in the decrease of convective heat transfer to 34.3% of the double glazing, and 19.4% of the single-glazing types. The results showed that the ventilated glazing schemes in association with daylight utilization could lead to substantial electricity savings in the office environment.

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Heat transfer through a double pane window with an insulation screen open at the top

Cited by 16 publications

References 9 publications

Conjugate heat transfer analysis of double pane windows

Conjugate heat transfer analysis of double pane windows

Modelling of an energy-efficient open double-glazing unit for the main climatic conditions of Mexico

Experimental evaluation of ventilated glazing performance in Hong Kong

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