Cooling energy performance and thermal characteristics of a naturally ventilated slim double-skin window

Choi, Haneul; An, Young-Sub; Kang, Kyungran; Yoon, Sung-Hoon; Kim, Taeyeon

doi:10.1016/j.applthermaleng.2019.114113

Cited by 32 publications

(8 citation statements)

References 42 publications

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“…The results of the study mentioned that the type of window affects the airflow. The determination of the window needs to be adjusted to the climate variable at a place [16], [17].…”

Section: Results S and Discussionmentioning

confidence: 99%

The Thermal Condition and Comfort Temperature of Traditional Residential Houses Located in Mountainous Tropical Areas: An Adaptive Field Study Approach

Hermawan

Prianto

Setyowati

et al. 2019

Int. J. Adv. Sci. Eng. Inf. Technol.

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Thermal comfort may be evaluated from the thermal condition of residential houses and their occupants' satisfaction. This research evaluates the thermal comfort of traditional residential houses located in mountainous areas of Wonosobo, Indonesia. The evaluation is conducted based on the physical condition of residential houses and their occupants' satisfaction factors. A quantitative approach is employed to analyze the theory of static thermal comfort (Predicted Mean Vote/PMV) and that of adaptive thermal comfort (Actual Mean Vote/AMV). The research method is conducted based on a field study. The thermal condition is measured using 4 climate variables and 2 personal variables. Climate variables are air temperature, globe temperature, relative humidity and wind velocity. Personal variables are clothes and activity. AMV was based on thermal sensation from ASHRAE (American Society of Heating, Refrigerating and AirConditioning Engineers). The sensation thermal is very cold (-3), cold (-2), cool (-1), neutral (0), warm (+1), hot (+2), very hot (+3). The research has conducted a survey of 14 houses with 39 respondents. The research findings show that the comfort temperature is 24.47 o C within air temperature (T a) or 24.14 o C within T g or 24.17 o C within T o or 25.08 o C within T ET or 24.69 o C within T SET. These findings are compared to those previously conducted in Jakarta and Bandung showing that some differences are dealing with their comfort temperature. The other findings show that there are also some PMV and AMV differences of traditional residential houses located in the tropical mountainous areas.

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“…The results of the study mentioned that the type of window affects the airflow. The determination of the window needs to be adjusted to the climate variable at a place [16], [17].…”

Section: Results S and Discussionmentioning

confidence: 99%

The Thermal Condition and Comfort Temperature of Traditional Residential Houses Located in Mountainous Tropical Areas: An Adaptive Field Study Approach

Hermawan

Prianto

Setyowati

et al. 2019

Int. J. Adv. Sci. Eng. Inf. Technol.

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show abstract

“…On the other hand, better thermal performance can be anticipated if one or several of the clear glass panes are replaced with other types of glass. In [36], the total indoor heat gain from solar radiation decreased by 27% and 34% for a natural-ventilated slim double-skin window by replacing the clear glass with colored glass or low-e glass. Therefore, it is important to choose the appropriate type of glass with special properties while designing liquid-infill tunable windows in order to customize the thermal response and energy performance.…”

Section: Discussionmentioning

confidence: 99%

Modeling, Simulation, and Performance Analysis of a Liquid-Infill Tunable Window

Wang

Yang

et al. 2022

Sustainability

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Solar shading is important in buildings for better indoor thermal/light environment and energy conservation, especially in the tropical region. Compared with conventional windows with additional fixed shading devices, windows with adaptive self-shading functions take up less space and require less management labor. The present investigation focuses on a compact liquid-infill tunable window, which can provide adaptive shading with colored liquid-infill according to the surrounding environment. The numerical model of the liquid-infill tunable window was established on the basis of the law of energy and mass conservation, which enabled prediction of the adaptive response of the window under different boundary conditions. Then the thermal performance of this innovative window was analyzed in comparison with triple-layered clear glass windows. Influences of solar radiation level, incident angle, and ambient temperature were taken into consideration. The window was proven to be efficient in reducing indoor heat gain in the cooling season under strong solar radiation. With an 60° incident angle, the total indoor heat gain through window can be reduced by 1.60–8.33%. In the future, the established numerical model may be inserted into existing building simulation software as an energy-efficient window module to evaluate its energy and economic performance. The present study may inspire architectures and engineers in the design of near-zero energy and/or carbon neutral buildings.

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“…investigated a triple glazed exhaust-air window (TGEW) and concluded that TGEW can reduce 25.30% and 50.10% of the annual cooling and heating loads, respectively. Choi et al (2019) analyzed the cooling energy performance of a slim double-skin window and showed that the proposed system can reduce the cooling load and decrease the solar heat gains. proposed a PCMEVW system for ventilation preheating / precooling applications and showed a building energy saving increase of 62.30% and 9.40% for summer and winter, respectively.…”

Section: Ventilated Windows and Façadesmentioning

confidence: 99%

Contribution of advanced windows and façades to buildings decarbonization: A comprehensive review

Ismail,

Lino,

Henríquez

et al. 2024

EUR J SUSTAIN DEV RES

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On a global level the building sector consumes about 45.00% of energy consumption, contributes about 40.00% to emission, uses 30.00% of water and impacts the environment by generating 30.00% of waste. Although windows are important components of a building that provide natural lighting and ventilation and establish necessary contact with the external environment necessary for healthy indoor ambient, they permit entry of undesirable solar heat in summer and allow escaping heat from the indoor ambient in cold seasons, which aggravate the building needs for energy and increase its contribution to atmospheric emissions. The present investigation provides a review on research, development, and applications of advanced windows in the building sector. The introduction highlights the importance and contribution of advanced glazing technology to improving energy, comfort, and thermal performance of buildings. The review includes natural illumination and ventilation, thermal comfort and discusses the effects of window to wall ratio on natural illumination and ventilation of windows and façades. The review also covers recent developments in glazed windows and façades including performance enhancements by using reflective solar films, vacuum glazing, windows with filling materials, windows with water flow, window with phase change material, window with stagnant inert gas filling, ventilated windows and façades and windows with aerogel. A special section was also included on smart glazing for windows and façades showing the new tendencies and applications in the building industry. Since commercial programs and open access codes are handy tools for simulation and performance calculations a section is dedicated to these codes. The conclusion section contains the most relevant conclusion of the review as well as future trends in research and developments in the area. The topics included in this review can be helpful for experienced and young researchers, practicing engineers and general readers interested in windows and façades.

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Cooling energy performance and thermal characteristics of a naturally ventilated slim double-skin window

Cited by 32 publications

References 42 publications

The Thermal Condition and Comfort Temperature of Traditional Residential Houses Located in Mountainous Tropical Areas: An Adaptive Field Study Approach

The Thermal Condition and Comfort Temperature of Traditional Residential Houses Located in Mountainous Tropical Areas: An Adaptive Field Study Approach

Modeling, Simulation, and Performance Analysis of a Liquid-Infill Tunable Window

Contribution of advanced windows and façades to buildings decarbonization: A comprehensive review

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