Comparative assessment of vernacular passive cooling techniques for improving indoor thermal comfort of modern terraced houses in hot–humid climate of Malaysia

Toe, Doris Hooi Chyee; Kubota, Tetsu

doi:10.1016/j.solener.2015.01.035

Cited by 111 publications

(45 citation statements)

References 19 publications

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“…Proposed models in different positions. The results of this study on the potential of vernacular climatic strategies for improving thermal comfort in residential buildings of hot and humid climates of Iran were similar to those of Toe and Kubota [37] for improving thermal comfort in residential buildings of Malaysia by using vernacular passive cooling techniques. The results of Prajongsan and Sharples [47] to enhance natural ventilation and to improve thermal comfort in residential buildings of Bangkok, and the results of Haase and Amato [49] for improving comfort by natural ventilation in residential buildings in Malaysia, matched approximately with the results of this study.…”

Section: Discomfort Hours Energy Consumption and Co2 Emissionssupporting

confidence: 59%

“…The study revealed several significant findings, including that the total annual energy consumption of a residential building in Dubai may be reduced by up to Sustainability 2017, 9, 1950 6 of 26 23.6% when a building uses passive cooling strategies. Toe and Kubota [37] investigated vernacular passive cooling techniques and their potential application for improving indoor thermal comfort of naturally ventilated, modern brick terraced houses in Malaysia. Field measurements were conducted in two traditional timber Malay houses and two traditional masonry Chinese shop houses to examine their indoor thermal environments.…”

Section: Literature Reviewmentioning

confidence: 99%

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Effects of Vernacular Climatic Strategies (VCS) on Energy Consumption in Common Residential Buildings in Southern Iran: The Case Study of Bushehr City

et al. 2017

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Abstract:This study aims to use the vernacular climatic strategies (VCS) of traditional dwellings in Bushehr, in the common residential buildings of this southern Iranian city (which is characterized by its hot and humid climate), and provide answers to the following question: What effects do VCS have in terms of energy consumption in these buildings? This study has been conducted at three levels. At the first level, three context-based climatic solutions including shading, natural ventilation, and insulation of external walls and roofs were identified and selected based on bibliographic study. At the second level, a case study reflecting the current typology of common residential buildings in Bushehr city was selected. A combination of the mentioned climatic solutions was used in the baseline case to create a developed model. Based on the space layout of the developed model and some design criteria, a series of proposed models was also created and modeled. The selected case study building was also used to establish a local weather station at a height of 12 m based on the roof, collecting local climate data which were then used for simulation to improve simulation accuracy. Finally, all models were simulated with the use of Design Builder software under natural ventilation conditions during moderate climatic periods of the year while split air-conditioning systems were used during hot and humid periods. The results showed reductions of 16% in energy consumption and 22% in CO 2 emissions for the developed model, and reductions of 24-26% in energy consumption and 32-34% in CO 2 emissions for the proposed models, as compared with the baseline model. Furthermore, all proposed models achieved lower annual energy consumption when compared with a selection of international sustainable low energy standards and domestic energy performance references for the Middle East region. Further studies are also recommended, and there is potential for combining VCS with other solutions such as on-site renewable energies.

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Section: Discomfort Hours Energy Consumption and Co2 Emissionssupporting

confidence: 59%

Section: Literature Reviewmentioning

confidence: 99%

Effects of Vernacular Climatic Strategies (VCS) on Energy Consumption in Common Residential Buildings in Southern Iran: The Case Study of Bushehr City

et al. 2017

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“…Through history, many vernacular techniques and materials shaped by the local culture, weather and geographical location were employed around the world [31][32][33][34][35][36]. In addition, many of these techniques and materials have been utilised in various regions with different climatic conditions and cultural backgrounds.…”

Section: Vernacular Architecturementioning

confidence: 99%

The Role of Vernacular Construction Techniques and Materials for Developing Zero-Energy Homes in Various Desert Climates

2017

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Hot desert regions, like Saudi Arabia, are very challenging in terms of building energy consumption. The role of the housing sector in the country is critical as it accounts for half of the total national electricity consumption. It is important to apply sustainable energy concepts in this sector, and the application of Zero-Energy Homes (ZEHs) could be an appropriate option in this regard. In ZEHs, the energy demand needs to be reduced significantly before employing renewable energy, and a way to achieve that is through applying vernacular construction techniques and materials. This study aims to investigate the role of courtyard, mushrabiyah and adobe construction for the development of ZEHs in the five main Saudi climatic zones represented by Dhahran, Guriat, Riyadh, Jeddah and Khamis Mushait. A base house is designed, modelled and compared with measured electricity values. The comparison between the base house and the houses adapted with these techniques and materials is undertaken based on the annual electricity demand and the maximum power demand, and findings reveal that mushrabiyah can reduce them by 4% and 3%, respectively, while adobe can reduce them by 6% and 19%, respectively. Courtyards are found to be not helpful in terms of energy saving.

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“…Shading devices have been installed horizontally and vertically on top of windows and apertures have been employed, especially in the south direction, to sufficiently fulfill heat avoidance techniques. By controlling intensive solar radiation through the application of shadings in balconies as well as the increase of cross-ventilation through the shaded windows, acceptable indoor thermal conditions have been supplied in vernacular houses [4,5,27].…”

Section: Introductionmentioning

confidence: 99%

Influence of Iwans on the Thermal Comfort of Talar Rooms in the Traditional Houses: A Study in Shiraz, Iran

2018

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In traditional buildings many climatic strategies have been used to provide indoor thermal comfort in south and central parts of Iran. A common element is called an iwan. This study investigates the indoor thermal comfort of a room adjoined to a talar in a traditional house which has an iwan, in Shiraz, Iran. The data related to the temperature and relative humidity of the room are used to calculate the thermal comfort index of PMV (Predicted Mean Vote) and PPD (Predicted Percentage of Dissatisfied) by considering the following two cases: a talar room with an iwan and one without an iwan, by means of DesignBuilder software. For the purpose of validation, the air temperature and relative humidity of the talar room with an iwan were measured over 10 days and compared to the results of the simulation. Having a valid simulation, computation was conducted for the selected house in various cases for an annual passive operation of calculating PMV and PPD. The numerical results revealed that the talar room adjoined to an iwan located in the south front of the courtyard had relatively good conditions during the hot months, including June and July. In addition, it could provide fully satisfactory comfort conditions during August and September. According to the results, it is found that the iwan makes a talar room 62% more desirable for the hot months in comparison with a talar room without an iwan.

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Comparative assessment of vernacular passive cooling techniques for improving indoor thermal comfort of modern terraced houses in hot–humid climate of Malaysia

Cited by 111 publications

References 19 publications

Effects of Vernacular Climatic Strategies (VCS) on Energy Consumption in Common Residential Buildings in Southern Iran: The Case Study of Bushehr City

Effects of Vernacular Climatic Strategies (VCS) on Energy Consumption in Common Residential Buildings in Southern Iran: The Case Study of Bushehr City

The Role of Vernacular Construction Techniques and Materials for Developing Zero-Energy Homes in Various Desert Climates

Influence of Iwans on the Thermal Comfort of Talar Rooms in the Traditional Houses: A Study in Shiraz, Iran

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