The Effect of Window Placement on Natural Ventilation Capability in a Jakarta High-Rise Building Unit

Bramiana, Chely Novia; Aminuddin, Asrul Mahjuddin Ressang; Ismail, Muhammad Azzam; Widiastuti, Ratih; Pramesti, Previari Umi

doi:10.3390/buildings13051141

Cited by 5 publications

(7 citation statements)

References 27 publications

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“…Therefore, the C d value applied in our study was 0.6 [51,52]. α and γ are the terrain parameters in Equation (17). Fitted with the 534 data samples, the empirical constant C was found to be 0.02 [40].…”

Section: New Correlationmentioning

confidence: 95%

“…Currently, research on natural ventilation primarily focuses on the building envelope [11][12][13][14][15][16][17], building energy consumption [18][19][20] and the thermal comfort of occupants [13,[21][22][23]. The natural ventilation problems of caves differ from those of traditional buildings due to differences in their architectural forms, research contents and boundary conditions.…”

Section: Introductionmentioning

confidence: 99%

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A New Correlation for Single-Sided Natural Ventilation Rate Based on Full-Scale Experimental Study in Mogao Grottoes, Dunhuang, China

et al. 2023

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Although research on the natural ventilation of single-sided buildings is progressing, research on the natural ventilation of the Mogao Grottoes, which have special shapes and structures, is relatively limited. The purpose of this paper is to develop a correlation for calculating the natural ventilation rates of such grottoes. Field experiments were carried out on two typical caves to measure their meteorological parameters and natural ventilation rates to verify the validity of the proposed correlation. The results show that our correlation has good reliability and stability when predicting the natural ventilation rates of the caves. First, the new correlation has a small average deviation of 16.35%. The average deviations in the natural ventilation rates predicted by seven established correlations are as low as 17.85% and as high as 59.39%, revealing a large gap compared with the correlation proposed herein. Second, the maximum deviation in the outputs of the proposed correlation is only 7.70% between each case. Finally, a comparison between the calculated results and the values measured in Cave 328 shows that the correlation is also suitable for large-volume caves. The developed correlation provides theoretical support and a scientific method for preventive protection and a quantitative analysis method for the study of natural ventilation in caves.

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Section: New Correlationmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

A New Correlation for Single-Sided Natural Ventilation Rate Based on Full-Scale Experimental Study in Mogao Grottoes, Dunhuang, China

et al. 2023

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“…Based on a review of previous studies [19][20][21][22][23][24][25][26][27][28][29][30], ventilation type, ventilation flowrate, and indoor temperature were chosen as the process variables affecting ventilation efficiency. As shown in Figure 1a, the ventilation system, designed for this study as a DVS, had the ventilation inlet (VI) located near the floor while the ventilation outlet (VO) was mounted on the ceiling.…”

Section: Description Of Officementioning

confidence: 99%

“…Numerous cases of the virus spreading in the form of airborne transmission have been reported in indoor spaces such as restaurants [14], public transportation [15], hospitals [16], airplanes [17], and offices [18] when ventilation was not properly maintained. Because indoor ventilation is very important to reduce the likelihood of virus spreading, various studies on ventilation have been conducted to improve indoor air quality [19][20][21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Local Mean Age of Air between Displacement Ventilation System and Mixing Ventilation System in Office Heating Conditions during Winter

An,

Park,

Lee

et al. 2024

Buildings

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A novel displacement ventilation system (DVS) was designed using a four-way cassette fan coil unit (FCU) and air purifiers (APs) for supplying clean air. The proposed DVS in this study involved drawing indoor air through the FCU and diffusers installed in the ceiling, controlling air temperature using the FCU, and then discharging it back into the office through the APs placed on the floor. The comparative ventilation system considered was the typical mixing ventilation system (MVS) that intakes and exhausts indoor air using diffusers installed on the ceiling. The local mean age of air was used as an index to compare indoor air quality between DVS and MVS under winter heating conditions. It was found that the DVS was more effective in improving indoor air quality in winter than the MVS. Moreover, compared to the MVS, utilizing the DVS designed in this study resulted in the advantage of a much more uniform air temperature variation in the office space. Therefore, it is anticipated that modifying the structure of an indoor space with an FCU installed in the ceiling and APs on the floor to use the DVS designed in this study would greatly assist in enhancing indoor air quality.

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“…Natural cooling sources, including natural ventilation [16,17], sky radiation [18,19], outdoor water reservoir [20,21], and deep soil [22], offer alternatives to space cooling. However, each source presents unique challenges.…”

Section: Introductionmentioning

confidence: 99%

Characteristics and Application Analysis of a Novel Full Fresh Air System Using Only Geothermal Energy for Space Cooling and Dehumidification

Han,

Li,

et al. 2024

Buildings

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To effectively reduce building energy consumption, a novel full fresh air system with a heat source tower (HST) and a borehole heat exchanger (BHE) was proposed for space cooling and dehumidification in this paper. The cooling system only adopts geothermal energy to produce dry and cold fresh air for space cooling and dehumidification through the BHE and HST, which has the advantage of non-condensate water compared to BHE systems integrated with a fan coil or chilled beam. Based on the established mathematical model of the cooling system, this paper analyzed the system characteristics, feasibility, operation strategy, energy performance, and cost-effectiveness of the proposed model in detail. The results show that the mathematical model has less than 10% error in estimating the system performance compared to the practical HST−BHE experimental set up. Under the specific boundary conditions, the cooling and dehumidification capacity of this system increases with the decrease in the air temperature, air moisture content, and inlet water temperature of the HST. The optimal cooling capacity and the system COP can be achieved when the air–water flow ratio is at 4:3. A case study was conducted in a residential building in Shenyang with an area of about 1800 m2. It was found that this system can fully meet the cooling and dehumidification demand in such a residential building. The operation strategy of the cooling system can be optimized by adjusting the air–water flow ratio from 4:3 to 3:2 during the early cooling season (7 June–1 July) and end cooling season (3 August–1 September). As a result, the average COP of the cooling system during the whole cooling season can be improved from 6.1 to 8.7. Compared with the air source heat pump (ASHP) and the ground source heat pump (GSHP) for space cooling, the proposed cooling system can achieve an energy saving rate of 123% and 26%, respectively. Considering that the BHE of the GSHP can be part of the proposed HST−BHE cooling system, the integration of the HST and GHSP for space cooling (and heating) is strongly recommended in actual applications.

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The Effect of Window Placement on Natural Ventilation Capability in a Jakarta High-Rise Building Unit

Cited by 5 publications

References 27 publications

A New Correlation for Single-Sided Natural Ventilation Rate Based on Full-Scale Experimental Study in Mogao Grottoes, Dunhuang, China

A New Correlation for Single-Sided Natural Ventilation Rate Based on Full-Scale Experimental Study in Mogao Grottoes, Dunhuang, China

Comparison of Local Mean Age of Air between Displacement Ventilation System and Mixing Ventilation System in Office Heating Conditions during Winter

Characteristics and Application Analysis of a Novel Full Fresh Air System Using Only Geothermal Energy for Space Cooling and Dehumidification

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