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Numerical study of thermal characteristics of double skin facade system with middle shade

Frontiers in Energy 2021年第1期15卷 222-234页

作者： Shaoning LIU Xiangfei KONG Hua YANG Minchao FAN Xin ZHAN School of Energy and Environmental Engineering Hebei University of TechnologyTianjin 300401China

Architectural shade is an effective method for improving building energy efficiency.A new shade combined with the double skin façade(DSF)system,called middle shade(MS),was introduced and developed for *** this paper,a 3D dynamic simulation was conducted to analyze the influence of MS combined with DSF on the indoor thermal *** research on MS for DSF involves the temperature,the ventilation rate,the velocity distribution of the air flow duct,and the indoor *** results show that the angle and position of the shade in the three seasons are different,and different conditions effectively enhance the indoor thermal *** summer,the appearance of MS in DSF makes the indoor temperature significantly *** indoor temperature is obviously lower than that of the air flow duct,and the temperature of the air flow duct is less affected by *** influence of the position of blinds on indoor temperature and ventilation rate is greater than the influence of the angle of *** to the climate characteristics of winter and transition season,in winter,early spring,and late autumn,the indoor temperature decreases with the increase of the position of blinds at daytime,but the opposite is true at *** results found in this paper can provide reference for the design and use of MS combined with DSF in hot summer and cold winter zone.

关键词： middle shade position thermal characteristics double skin facade

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Experimental study on thermal characteristics of a double skin faade building

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Journal of Southeast University(English Edition) 2014年第4期30卷 462-466页

作者：王芳张小松谭俊杰李秀伟南京理工大学能源与动力工程学院南京210094 东南大学能源与环境工程学院南京210096

An experimental study of the thermal characteristics of an existing office building with double skin facade DSF were conducted in hot summer daytime in Nanjing China. The temperature distributions of the DSF and indoor environment were measured at different control modes of *** results show that the energy consumption of the air conditioning system in room B with opened exterior vents a closed interior facade and an air cavity with shading was 21.0% less than that in room A with closed exterior vents a closed interior facade and air cavity without shading in 9.5 h. The temperature distributions of the DSF and indoor environment in both horizontal and vertical directions were decisively influenced by shading conditions. The usage of shading devices strengthens the stack effect on the air cavity. Compared to room A the temperature distribution in room B is more uniform with smaller *** the problem of overheating in the air cavity of the DSF is still present in all tested conditions.

关键词： double skin facade thermal characteristics temperature distribution energy consumption

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double criterion optimisation of transparent facades based on solar thermal processes

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Frontiers of Architectural Research 2013年第1期2卷 23-29页

作者： Marcin Janicki Dariusz Helm Department of Heat and Mass Transfer Lodz University of Technology Lodz 90-924 Poland

This work aimed to find the best possible solution for transparent facades. The evaluation was formulated to assure the highest user comfort criteria corresponding to energy efficiency--two criterion optimisation. The analyses were based on BESTEST, south-oriented zone geometry. Computer model was designed using Finite Control Volume Techniques with assumptions for applied materials and specified boundary conditions, plus reference year for energy calculation （WYECZJ. The natural ventilation facade system was desfgned to determine airflow network inside the facade. The adjustable size of openings （inlets and outlets） was selected at the level of 80% for the cold season and totally dosed during the hot season. Environmental parameters for thermal comfort evaluation were： zone resultant temperature and solar radiation in zone space. Energy efficiency was assessed based on heat flux between the zone with controlled temperature and external environment. Results showed that well selected design of buffer zone section could improve energy efficiency of adjacent zones for both winter and summer periods. The most profitable double skin facade solution is DGC （double glazing with low-e coating） combined with single glazing with internal blinds （SGB） or coloured glazing.

关键词： Optimisation Sotar radiation Energy Thermal comfort double skin facade Grazing

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Net-Zero Energy Building Enhancement for a Leadership in Energy and Environmental Design Platinum Educational Facility

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Journal of Civil Engineering and Architecture 2014年第8期8卷 963-972页

作者： Aydin Tabrizi Paola Sanguinetti Department of Architecture University of Kansas Lawrence 66045 USA

In the United States, university buildings use 17% of total non-residential building energy per year. According to the NREL （National Renewable Energy Laboratory）, the average lifecycle of a building in a university is 42 years with an EUI （energy use intensity） of 23 kWh/m^2/y. Current building and energy codes limit the EUI to 16 kWh/m^2/y for new school buildings; this benchmark can vary depending on climate, occupancy, and other contextual factors. Although the LEED （leadership in energy and environmental design） system provides a set of guidelines to rate sustainable buildings, studies have shown that 28%-35% of the educational LEED-rated buildings use more energy than their conventional counterparts. This paper examines the issues specific to a LEED-rated design addition to an existing university building. The forum, a lecture hall expansion of to an existing building at the University of Kansas, has been proposed as environmentally friendly and energy-efficient building addition. Comfort and health aspects have been considered in the design in order to obtain LEED platinum certificate. The forum＇s energy performance strategies include a double-skin facade to reduce energy consumption and PV （photovoltaic） panels to generate onsite energy. This study considers various scenarios to meet NZEB （net-zero energy building） criteria and maximize energy savings. The feasibility of NZE criteria is evaluated for：（a） seasonal comparison; （b） facility occupancy; （c） PV panels＇ addition in relation to double skin facade. The results of NZEB approach are compared to LEED platinum requirements, based on Rol （return on investment） and PV panel＇s efficiency for this specific educational building.

关键词： NZEB double skin facade energy plus educational building PV panels LEED

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Comparative Analysis of Two Energy-Efficient Technologies Used in the Shanghai Tower

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Energy and Power Engineering 2022年第1期14卷 1-12页

作者： Sarah Chen Yuyang Li Western Canada High School Calgary Canada Jinan Xinhang Experimental Foreign Language School Jinan China

Climate change continues to affect the lives of individuals across the world, creating a rise in demand for new technologies that can slow down the impacts of climate change. Shanghai, one of the largest cities in the world, has one of the highest carbon emission levels. In recent years, the research and development of energy-efficient technologies have gained more and more attention. The Shanghai Tower is a pioneer in green building design and a prominent example of Shanghai’s efforts towards low-carbon city development. In this paper, two technologies within the Shanghai Tower—ground source heat pumps (GSHP) and double skin facades (DSF)—will be analyzed. The paper will consist of firstly an investigation of the principles of the technologies, and then analysis, evaluation, and comparison of their respective characteristics. While both GSHP and DSF are used for sustainable purposes, the effectiveness of technologies depends on what environment the technology is used in and what purpose they serve. The evaluation of GSHP and DSF will be based on their performances under Shanghai’s climate and whether they contribute to the purposes of the Shanghai Tower.

关键词： Shanghai Tower Green Buildings Ground Source Heat Pump double skin facade Energy Efficiency

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