Summer study on thermal performance of an exhausting airflow window in evaporatively-cooled buildings

Khalvati, Farid; Omidvar, Amir

doi:10.1016/j.applthermaleng.2019.02.135

Cited by 48 publications

(13 citation statements)

References 20 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.

View full text Add to dashboard Cite

show abstract

“…In the literature there are several examples of using CFD to examine the behavior, characteristics, and energy consumption and comfort status of a DSF (Pappas and Zhai 2008, Safer et al 2005, Ye et al 1999. Studies on DSF microclimatic thermal comfort are mostly limited to colder and warmer climatic conditions (Alberto et al 2017, Khalvati and Omidvar 2019, Yang et al 2020, Saroglou et al 2020, Guardo et al 2009). However, the use of multiple or double skin facades in hot summer continental climates is not well documented.…”

Section: Athens Journal Of Technology and Engineeringmentioning

confidence: 99%

Untitled

2022

AJTE

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ATINER is an independent and non-profit Association with a Mission to become a forum where Academics and Researchers from all over the world can meet in Athens, exchange ideas on their research and discuss future developments in their disciplines, as well as engage with professionals from other fields. Athens was chosen because of its long history of academic gatherings, which go back thousands of years to Plato's Academy and Aristotle's Lyceum. Both these historic places are within walking distance from ATINER's downtown offices. Since antiquity, Athens was an open city. In the words of Pericles, Athens"…is open to the world, we never expel a foreigner from learning or seeing". ("Pericles' Funeral Oration", in Thucydides, The History of the Peloponnesian War). It is ATINER's mission to revive the glory of Ancient Athens by inviting the World Academic Community to the city, to learn from each other in an environment of freedom and respect for other people's opinions and beliefs. After all, the free expression of one's opinion formed the basis for the development of democracy, and Athens was its cradle. As it turned out, the Golden Age of Athens was in fact, the Golden Age of the Western Civilization. Education and (Re)searching for the 'truth' are the pillars of any free (democratic) society. This is the reason why Education and Research are the two core words in ATINER's name.

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“…The radiative heat transfer coefficients between surfaces and indoors and outdoors are calculated as follows [9] : (9) (10) In Equation ( 7), T sky is the sky temperature given by [9] : (11) Also, T mr in Equation ( 8) is the mean radiant temperature of surfaces surrounding the interior glass surface, which is assumed to be equal to indoor air temperature [15] . 1 and 3 are the total of the long-wave radiative heat exchanges between channel-side surfaces of the interested glass pane and the channel-side surfaces of the other zones.…”

Section: Figure 2 Schematic Of the Ventilated Windowmentioning

confidence: 99%

“…While most of the researchers working on the ventilated window focused on evaluating thermal performance and energy efficiency [7][8][9][10][11][12] , The IAQ and energy consumption analysis has been the subject of limited studies. Gosselin and Chen [6] carried out experimentally validated computational fluid dynamics (CFD) simulations on a proposed dual airflow window to optimize the window design.…”

Section: Introductionmentioning

confidence: 99%

The Performance Evaluation of Ventilated Windows in the Simultaneous Improvement of Energy Efficiency and Indoor Air Quality in Office Buildings: A Case Study

Khalvati

Omidvar

2021

new n.a. exploit. and appl.

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Energy efficiency and indoor air quality (IAQ) are two crucial required features in a building. Simultaneous improvement of energy efficiency and IAQ in a building can pave the way for obtaining a green building certification. This paper examined the performance of the airflow windows’ supply and exhaust operating modes in energy-saving and providing IAQ criteria. The analytical zonal model coupled with the airflow network model was used to evaluate the system’s thermal performance and the induced airflow. The simulation was done for an office building located in Shiraz, Iran. The results showed that the energy performance of ventilated windows is positive in nine months of the year. Compared to a conventional double-glazed window, the maximum energy savings is about 10%, which occurs in August. It is predicted that using ventilated windows in office buildings in Shiraz can improve the window’s thermal performance by an average of about 5%. The results also showed that ventilated windows could provide the fresh air needed for the building in 250 days of the year to achieve the desired IAQ index (based on ASHRAE 62.1 standard). Furthermore, the effects of glass aspect ratio, airflow channel thickness, and the size of inlet/outlet openings on energy efficiency and IAQ of the suggested window were studied. Results indicated that in the climatic conditions of Shiraz, the exhaust operating mode is much more efficient than the supply mode.

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Summer study on thermal performance of an exhausting airflow window in evaporatively-cooled buildings

Cited by 48 publications

References 20 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

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The Performance Evaluation of Ventilated Windows in the Simultaneous Improvement of Energy Efficiency and Indoor Air Quality in Office Buildings: A Case Study

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