scholarly journals Thermal Impacts of Vertical Greenery Systems

2014 ◽  
Vol 14 (1) ◽  
pp. 5-11 ◽  
Author(s):  
Tabassom Safikhani ◽  
Aminatuzuhariah Megat Abdullah ◽  
Dilshan Remaz Ossen ◽  
Mohammad Baharvand
Keyword(s):  
Thermal Performance ◽  
Modern Architecture ◽  
Small Scale ◽  
Heat Transmission ◽  
Indoor Temperature ◽  
Experimental Procedure ◽  
Hot And Humid Climates ◽  
Living Wall ◽  
Green Façade ◽  
Green Facade

Abstract - Using vertical greenery systems to reduce heat transmission is becoming more common in modern architecture. Vertical greenery systems are divided into two main categories; green facades and living walls. This study aims to examine the thermal performance of vertical greenery systems in hot and humid climates. An experimental procedure was used to measure indoor temperature and humidity. These parameters were also measured for the gap between the vertical greenery systems and wall surfaces. Three boxes were used as small-scale rooms. Two boxes were provided with either a living wall or a green facade and one box did not have any greenery (benchmark). Blue Trumpet Vine was used in the vertical greenery systems. The data were recorded over the course of three sunny days in April 2013. An analyses of the results showed that the living wall and green facade reduced indoor temperature up to 4.0 °C and 3.0 °C, respectively. The living wall and green facade also reduced cavity temperatures by 8.0 °C and 6.5 °C, respectively.

scholarly journals COBERTURA E FACHADA VERDE:

2019 ◽  
Vol 8 (2) ◽  
pp. 89-100
Author(s):  
Thiago Youzi Kussaba Kayano ◽  
Nuria Perez Gallardo ◽  
Bruno César dos Santos ◽  
Mauricio Sanches Duarte Silva ◽  
Rafael Perussi ◽  
...  
Keyword(s):  
Thermal Behavior ◽  
Thermal Performance ◽  
Green Roof ◽  
Green Roofs ◽  
Sao Paulo ◽  
Test Cell ◽  
São Paulo ◽  
Control Test ◽  
Green Façade ◽  
Green Facade

Com a busca de alternativas para melhorar o conforto ambiental em ambientes construídos, os sistemas de fachadas e tetos verdes aparecem como uma opção para melhoria, em especial, do conforto térmico. Utilizando-se de um episódio climático representativo no mês de junho de 2016, analisou-se comparativamente o comportamento térmico de uma célula de teste com fachada e teto verde e uma célula de controle para avaliação do desempenho térmico em dia crítico experimental de frio. O experimento foi realizado no Centro de Recursos Hídricos e Estudos Ambientais (CRHEA) da Universidade de São Paulo (USP), em Itirapina-SP. Os resultados indicaram que a célula de teste com fachada e teto verde possui um melhor desempenho térmico em comparação à célula de controle. Palavras-chave: desempenho térmico, episódio climático representativo, comportamento térmico, fachada verde, cobertura verde. Abstract In searching for better thermal behavior alternatives in building environments green facade systems and green roofs emerge as an improvement option, particularly in thermal comfort. Using a representative climate episode to analyze the month of June of 2016 we studied the thermal performance of a green façade and green roof test cell and a control test cell in experimental critical cold day. The experiment was made in Water Resource and Environmental Studies Center (CRHEA) of University of São Paulo (USP), in Itirapina-SP. The results indicated the green wall and green roof test cell have a better thermal performance than control test cell. Keywords: Thermal performance, climatic representative episode, thermal behavior, green façade, green cover.

Simulation Analysis of Building Green Facade Eco-Effect

2014 ◽  
Vol 548-549 ◽  
pp. 1701-1705 ◽  
Author(s):  
Xin Chen Pan ◽  
Yi Xuan Xiao
Keyword(s):  
Simulation Analysis ◽  
Simulation Software ◽  
Indoor Temperature ◽  
Man And Nature ◽  
Annual Carbon ◽  
U Value ◽  
Green Façade ◽  
The Stability ◽  
Indoor Comfort ◽  
Green Facade

Purposes: this paper is to analyze and quantify the eco-effect of building green facade, providing a reliable application methods and theory basis for solving current environmental issues. Methods: this paper using facade renovation project of Wismar University in Germany as the carrier, it uses Energy-Plus energy simulation software, CFD computational fluid dynamics software and U-wert.net calculation software for U value of material to get the simulation analysis of the energy, physical and regional eco-effect of building green facade. Results: building green facade can increase 23.7% heat resistance value, save 6.2% of the year-round air conditioning load, reduce indoor temperature by 3-5°C in summer, reduce the air velocity by 0.03m/s, maintain the stability of indoor temperature, the annual indoor temperature can maintain 20.84°C, improve the indoor comfort. The temperature around the building can reduce by 0.5-4°C after green facade renovation, reduce the wind speed in the region by 0.05m/s, and reduce the annual carbon emission by 7.1%. Conclusions: Through the simulation results, eco-effect of building green facade play a significant role in cooling and insulation, energy saving, heat island mitigation, improving comfort, maintaining the balance of carbon and oxygen. It has become one important way to suture rift between man and nature in cities, being an effective way to solve today's ecological issues.

scholarly journals Double Skin Green Facade in Workplace for Enhancing Thermal Performance in Greater Cairo

2020 ◽  
Vol 168 (0) ◽  
pp. 1-12
Author(s):  
Aya Mohamed Abdelhay Shaheen ◽  
Hanan Mostafa Kamal Sabry ◽  
Ahmed l Atef El Dessoqy Fagga
Keyword(s):  
Thermal Performance ◽  
Greater Cairo ◽  
Double Skin ◽  
Green Façade ◽  
Green Facade

scholarly journals The projected deposition and removal of particulate matter by green façade drapes: a case study at SAINTGITS.

2020 ◽  
Vol 489 ◽  
pp. 012034
Author(s):  
Sajan Thomas ◽  
Joselin Herbert ◽  
Jacob Thottathil Varghese ◽  
C.R.K Sathish ◽  
Abdul Quadir ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Green Façade ◽  
Green Facade

Evaluating dynamic thermal performance of building envelope components using small-scale calibrated hot box tests

2021 ◽  
pp. 111342
Author(s):  
Zhenglai Shen ◽  
Adam L. Brooks ◽  
Yawen He ◽  
Som S. Shrestha ◽  
Hongyu Zhou
Keyword(s):  
Thermal Performance ◽  
Building Envelope ◽  
Small Scale

scholarly journals Preparation of microencapsulated PCMs for energy saving and thermal comfort of buildings

2021 ◽  
Vol 23 (09) ◽  
pp. 277-287
Author(s):  
Ashraf Mohamed Heniegal ◽  
◽  
Omar Mohamed Omar Ibrahim ◽  
Nour Bassim Frahat ◽  
Mohamed Amin ◽  
...  
Keyword(s):  
Thermal Performance ◽  
Chemical Interaction ◽  
Spherical Shape ◽  
Building Envelope ◽  
Scanning Calorimetry ◽  
Indoor Temperature ◽  
New Techniques ◽  
Consumption Energy ◽  
Local Materials ◽  
Regular Spherical Shape

Energy improvement techniques for buildings are among the modern studies that concentrate on new techniques and methods of saving energy and improving the thermal performance in buildings. This research aims to prepare microencapsulated-PCMs (micro-PCMs) by using local materials and studied the influence of using micro-PCMs on thermal performance improvement and PCMs leakage problems improvement. The micro-PCMs of paraffin wax were prepared as the core PCMs materials while the melamine-formaldehyde polymer as the shell. The micro-PCMs were characterized through scanning electron-microscopy (SEM), energy-dispersive X-ray (EDX) spectrometry, Fourier-transform infrared spectroscopy, and differential scanning calorimetry. Analysis results showed the prepared micro-PCMs present a regular spherical shape and confirm that the formation composite of the shell effectively encapsulated the cores. Furthermore, the absence of chemical interaction between the MF and the PW components. The micro-PCM have potential for architectural applications in the building-envelope to store thermal energy, provide indoor-temperature at the comfortable range, and reduce the consumption energy in buildings.

scholarly journals Living wall systems for improved thermal performance of existing buildings

2021 ◽  
pp. 108491
Author(s):  
Matthew Fox ◽  
Jack Morewood ◽  
Thomas Murphy ◽  
Paul Lunt ◽  
Steve Goodhew
Keyword(s):  
Thermal Performance ◽  
Existing Buildings ◽  
Living Wall

Post Occupancy Evaluation with Green Facades of Elementary and Junior High Schools in the Yilan Area

2012 ◽  
Vol 450-451 ◽  
pp. 1633-1636
Author(s):  
Hung Ren Hsieh ◽  
Fang Jyun Yeh
Keyword(s):  
Field Measurement ◽  
Indoor Environment ◽  
Junior High Schools ◽  
Negative Effects ◽  
Post Occupancy Evaluation ◽  
Environment Education ◽  
School Classroom ◽  
Green Façade ◽  
Green Facade

This study has focused on post occupancy evaluation of green facade for elementary school classroom in Taiwan to appreciate the actual situations and usage problems for green facades. This study has chosen three schools for case study. Based on field measurement, and user interview and user questionnaire, they are being used to clarify the environment improvement contributed by green facade establishment and its effectiveness of environment education of each case. This study also found usage and maintenance and management problems derived from green facade installed. Results show that the effectiveness of green facades on the classroom indoor environment improvement is partial significant, on the environment education is not as good as anticipated and on the maintenance and management have many problems and some unexpected negative effects. According to the above results, this study proposes relative planning and designing suggestions as a reference for schools that are willing to have green facades establishment in the future.

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