Comparative Study of Heat Transfer in Double Skin Facades on High-Rise Office Building in Jakarta

2012 ◽  
Vol 170-173 ◽  
pp. 2751-2755 ◽  
Author(s):  
Daryanto Daryanto

Building envelope on high-rise office buildings have an important role of energy consumed. There are many methods and techniques that can be used to achieve this goal through energy efficiency for building envelope in the tropic area. The use of glass material becomes one of the alternatives that offer a more attractive appearance. Although the double skin facades (DSF) has been widely applied, but research on the thermal performance and behavior of the wind is still scarce for the tropics, so it is interesting to note related to energy conservation. To obtain a clear picture of the heat transfer and airflow, the research was conducted on the two office buildings with the same orientation and location but they were different on the building envelope. The study was conducted by the field measurements and simulation using CFD-ACE + software, to determine the performance of the heat transfer and behavior of airflow in the double skin facades. The results indicate that the role of wind on the design building envelope has an influence on the heat transfer and energy savings. Key words: wind, double skin facade, heat transfer, CFD, energy

2013 ◽  
Vol 787 ◽  
pp. 711-716
Author(s):  
Daryanto ◽  
Eko Budihardjo ◽  
Wahyu Setyabudi ◽  
Gagoek Hardiman

There was an indication that high rise buildings in Jakarta was not designed based on energy conservation principles. The most important aspects of the high-rise buildings is energy saving technology located in the building envelope design. Building envelope with a full glass design functions for widening view and enhancing natural lights, even though but it is also increasing energy consumption and thermal discomfort due to the intensity of solar radiation in hot humid climates. During the current decade, the development of double building envelope type (Double Skin Façade: DSF) seemed more just to improve the aesthetics and the use of natural light, while the wind and thermal performance aspects were still lack of serious consideration. Those aspects will be chosen as the subject matter in this research. The research was aimed to investigate and compare the value of heat transfer in the building envelope of high-rise office buildings. Samples were taken from five DSF buildings, with closed and open cavity. CFD software is used for simulation of the five different models of DSF. The research proves that the high-rise office buildings as the research object in Jakarta do not apply energy conservation principle. The utilization of wind in the DSF cavity can reduce temperature and relieve the burden of air conditioning systems that is energy save. An important finding of the research is the need for ventilation in the design of a double skin at high-rise office buildings in the humid tropics.


2017 ◽  
Vol 1 (7) ◽  
pp. 1502-1515 ◽  
Author(s):  
Weilong Zhang ◽  
Lin Lu

Building-integrated photovoltaics (BIPV) have become a promising technology due to the urgent demand for sustainable energy supplies.


2018 ◽  
Vol 33 ◽  
pp. 01003
Author(s):  
Leonid Lavrov ◽  
Fedor Perov ◽  
Aleksandra Eremeeva ◽  
Vladimir Temnov

The article is devoted to assessment of the role of high-rise buildings in the St. Petersburg historic city’s ensemble. Features of formation of city architectural look, the conditions of city typical silhouette’s appearance which is characterized by the contrast of a small number of high-rise structures with a low horizontal mass building are observed. The consequences of the emergence of a significant number of great height buildings, the silhouette of which conflicts with the traditional St. Petersburg landscape’s compositional principles, are analyzed. The economic reasons of high-rise construction of residential and office buildings are given. The conclusions about the prospects of St. Petersburg high-rise construction in the light of city-building and economic factors are made.


2020 ◽  
Vol 20 (1) ◽  
pp. 24-34
Author(s):  
Farheen Bano ◽  
Vandana Sehgal

In this study, the energy consumption of three government and three private office buildings in Lucknow was investigated, and the energy performance index (EPI) for each building was determined. The main purpose of this research was to assess the energy usage of the buildings and identify factors affecting the energy usage. An analysis was performed using data from an energy audit of government buildings, electricity bills of private office buildings, and an on-site visit to determine building envelope materials and its systems. The annual energy consumption of buildings has been evaluated through EPI. The EPI, measured in kilowatt hour per square meter per year, is annual energy consumption in kilowatt hours divided by the gross floor area of the building in square meters. In this study, the energy benchmark for day-time-use office buildings in composite climate specified by Energy Conservation Building Code (ECBC) has been compared with the energy consumption of the selected buildings. Consequently, it has been found that the average EPI of the selected buildings was close to the national energy benchmark indicated by ECBC. Moreover, factors causing inefficient energy consumption were determined, and solutions for consistent energy savings are suggested for buildings in composite climate.


Author(s):  
Guy Abou-Nassar ◽  
Zahed Siddique

In a time when energy crises loom on the horizon, means for more efficient energy sources are being thoroughly researched. One such area for improvement is in the building sector with the implementation of double skin façades (DSF). With capabilities of relatively rapid and large changes in various aspects of itself, a DSF can respond dynamically to varying ambient conditions. Applying American Society of Heating, Refrigerating and Air-Condition Engineers, Inc (ASHRAE) standards to design a general building model with a standard HVAC system, a comparison can be drawn between different architectural configurations, both with and without DSFs, and a better understanding of how a DSF can affect heat transfer into a building could potentially influence future structural design decisions. Using CAD models, a flow analysis and rudimentary heat transfer can be conducted in a computational fluid dynamics (CFD) software, Fluent which can account factors such as wind speed as well as solar radiation. With the various design applications, the heat load of a building can be reduced by over 15%.


2019 ◽  
Vol 14 (4) ◽  
pp. 533-542
Author(s):  
Yuanda Hong ◽  
Wu Deng ◽  
Collins I Ezeh ◽  
Zhen Peng

Abstract Attaining sustainability in high-rise office buildings necessitates determining the major elements and their associating impacts on the energy performance of this building typology. This study investigates the impact of architectural and engineering features on the energy performance of high-rise office buildings within a warm-summer-cold-winter climate. A rectangular building plan form with a 1:1.44 plan ratio, vertical split core position and central atrium presented the best building performance. The plan form, core position and atrium effect accounted for 59, 30 and 11%, respectively, of an estimated 20.6% building energy savings. Furthermore, exploiting passive strategies founded on the climate and building features as defined by `PassivHaus’ standards further reduced the building energy usage.


2011 ◽  
Vol 43 (10) ◽  
pp. 2760-2766 ◽  
Author(s):  
Teshome Edae Jiru ◽  
Yong-X. Tao ◽  
Fariborz Haghighat

2011 ◽  
Vol 2 (2) ◽  
pp. 129-136 ◽  
Author(s):  
A. Gelesz ◽  
A. Reith

Abstract The construction of double-skin glass facades in Hungary has mainly design or acoustic motivations. The potential energy savings or risks of double-skin facades are, however, not commonly evident. This fact is not surprising if we notice that there is no widely excepted classification of these constructions. In the following article different facade typologies are compared (Pottgiesser, BBRI, Széll) and an attempt to develop a transparent classification system is made. Subsequently a few chosen facade types, which are expected to perform well in the Hungarian climate, are evaluated through computer simulation programs to serve as a guideline for the design on climates similar to the domestic one.


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