Thermal design tool for outdoor spaces based on heat balance simulation using a 3D-CAD system

Asawa, Takashi; Hoyano, Akira; Nakaohkubo, Kazuaki

doi:10.1016/j.buildenv.2007.12.007

Cited by 83 publications

(36 citation statements)

References 8 publications

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“…Thermorender is characterized by its accurate calculation of 3D surface temperature, assuming that the temperature of object space is a fixed value. As to its significance and methodology, this has already been established in several papers published in international journals [1,[18][19][20][21][22]. Table 1 lists the conditions of the study site and type of the housing block.…”

Section: Thermal Environment Simulationmentioning

confidence: 99%

Changes in Sunlight and Outdoor Thermal Environment Conditions Based on the Layout Plan of Flat Type Apartment Houses

Jung

Yoon

2015

Energies

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Economic growths lead to population increases in large cities. This has brought about the growing necessity for apartment housing which has resulted in higher density populations living in high-rise apartment complexes. Therefore, the urban microclimate is aggravated due to the increasing ratio of artificial coverage and substandard daylight availability. To achieve a comfortable living environment and improve urban microclimates, a process considering the daylight availability and the outdoor thermal environment is required when designing apartment housing complexes. This study selected a total of 27 valid cases using an orthogonal array, L27( 3 13 ) design of experiments (DOE). As a result of significance probability obtained in DOE analysis, the design factors that have an effect on the outdoor thermal environment and daylight availability were found to be building coverage ratio, distance between buildings, and azimuth. The rankings of the effect of design factors were shown to be in the order of azimuth > building coverage ratio > distance between buildings > floor area ratio > width/depth ratio. The surface temperature of the whole building decreased by 0.3 °C and Mean Radiant Temperature (MRT) decreased by 1.1 °C as a result of applying the greenery coverage ratio to apartment complexes. Heat Island Potential (HIP) also showed a decrease of 5.4 °C (at noon).

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Section: Thermal Environment Simulationmentioning

confidence: 99%

Changes in Sunlight and Outdoor Thermal Environment Conditions Based on the Layout Plan of Flat Type Apartment Houses

Jung

Yoon

2015

Energies

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“…Several papers employing this simulation have been published in international journals [43][44][45][46][47][48]. …”

Section: Simulation Of Outdoor Thermal Environmentmentioning

confidence: 99%

“…Mesh data were selected, and a thermal equilibrium calculation process for each mesh was performed. In order to evaluate the thermal environment in summer, which is dominated by the radiation environment, the three-dimensional distribution of the entire surface temperature, mean radiant temperature (MRT), which is a measure of the radiant heat environment, and heat island potential (HIP) were used as evaluation indices through a three-dimensional numerical simulation of the entire surface temperature [44].…”

Section: Simulation Of Outdoor Thermal Environmentmentioning

confidence: 99%

Deduction of Optimum Surface Design Factors for Enhancement of Outdoor Thermal Environment in a Micro-Scale Unit

Jung

Yoon

2017

Sustainability

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Abstract:To solve some of the problems associated with changing urban climates, such as the heat island effect, the exterior building skin and ground surfaces should be analyzed because they are directly exposed to the outdoor climate and have the greatest impact on energy consumption. Research is needed to identify design factors to improve the effect of a building's skin in the outdoor summer season's thermal environment. In this study, the current conditions of outdoor thermal environments were identified by conducting field measurements at an apartment housing complex. A simulation analysis was conducted based on cases that included different design factors for a building's skin and ground surfaces. When the significance probability of the design factors for the surface plans for apartment buildings and surface cover was analyzed based on the Taguchi experimental design method, the window plan and surface cover plan influenced the outdoor thermal environment. Notably, the surface cover plan had the most significant impact on the outdoor thermal environment. The result of the analysis of the correlation between the design factors for an apartment complex's surface plans and outdoor thermal environment indices showed that the window plan correlated with the entire surface temperature of building and heat island potential (HIP).

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“…Léteznek azonban olyan szoftverek is, melyek a várostervezők és mérnökök ismereteihez és igényeihez jobban igazodva eleve CAD-alapúak (pl. Teller és Azar 2001, Asawa et al 2008.…”

Section: A Fontosabb Mikroklimatológiai Modellek éS a Bennük Rejlő Leunclassified

“…A japán 3D-CAD típusú modell a városi felszínek (beleértve a természetes és mestersé-ges tereptárgyakat, illetve burkolatokat) hőcserefolyamatainak szimulációját a háromdimenzi-ós CAD rendszerek technikájával egyesíti (Asawa et al 2008, He et al 2009. A modellfuttatások két lépésben zajlanak: az ún.…”

Section: Egyéb Modellekunclassified

Városi közterületek komplex humán-bioklimatológiai értékelése és annak várostervezési vonatkozásai szegedi példák alapján

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Thermal design tool for outdoor spaces based on heat balance simulation using a 3D-CAD system

Cited by 83 publications

References 8 publications

Changes in Sunlight and Outdoor Thermal Environment Conditions Based on the Layout Plan of Flat Type Apartment Houses

Changes in Sunlight and Outdoor Thermal Environment Conditions Based on the Layout Plan of Flat Type Apartment Houses

Deduction of Optimum Surface Design Factors for Enhancement of Outdoor Thermal Environment in a Micro-Scale Unit

Városi közterületek komplex humán-bioklimatológiai értékelése és annak várostervezési vonatkozásai szegedi példák alapján

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