Conference Agenda

Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).

 
Session Overview
Session
1ST/2: Science & Technology
Time:
Monday, 10/Dec/2018:
11:00am - 12:00pm

Session Chair: Dr. Paula San Payo Cadima
Location: LT2
Lecture Theatre 2, G/F, Yasumoto International Academic Park, CUHK

Presentations
11:00am - 11:15am

Vehicular Anthropogenic Heat In The Physical Parameters Of An Urban Canyon For Warm Humid Climate

Ruth Maria Grajeda1,2, Carlos Javier Esparza1,3, Elia Mercedes Alonso1,4

1Interinstitutional Program of Doctorate in Architecture PIDA, Mexico; 2Universidad Veracruzana, Mexico; 3Facultad de Arquitectura y Diseño Universidad de Colima, Mexico; 4Universidad Michoacana de San Nicolás de Hidalgo, Morelia, México

Field measurements were made in an urban canyon, located in the center of the City and Port of Veracruz, Mexico, where higher temperatures are compared to its surrounding areas. Research focused on better understanding the behavior of the microclimates of a city and its impact on thermal comfort. Temperature (T) and Relative Humidity (RH), are the variables considered to be measured by an autonomous flight system (MeVA), for the determination of the behavior of the street's thermal profile and its fluctuations due to the vehicular park that it transits. It is determined that the increase in temperature as a result of the cars increases from 3.50 to 1.50 ° C, and this effect is dissipated at a height of 3 meters. The investigation allows establishing parameters of adequate control of the vehicular tributary and a better planning in the aspect ratios of an urban canyon so as not to increase the temperature and achieve hygrothermal comfort values for the pedestrian.


11:15am - 11:30am

A Comparative Study of Hygrothermal Simulations for a Bamboo Wall System with Natural Wool Insulation

Zachary Michael Gould, Georg Reichard

Virginia Tech, United States of America

The modern building industry sends products all over the world to improve building envelope performance. Though there are existing standards and tools to evaluate hygrothermal behavior of wall sections in different climates, they are often based on different assumptions and provide development teams with different insights. This paper attempts to compare the capabilities and limitations of three hygrothermal analysis tools: Ubakus, HT Flux, and WUFI. An engineered bamboo wall section with wool insulation that was recently built in Washington D.C. is used as a case. The results from the various tools are compared for the different climate zones where constituent parts of the building envelope were manufactured as well as the location of final assembly.


11:30am - 11:40am

A Load-Bearing Wall Construction House: Analyses of Heat Problems and Resolutions

Sakkara Rasisuttha1, Surasit Learnimoolchai2

1Khon Kaen University, Thailand; 2Concrete Precision Real Co.,Ltd.

Thermal conditions of spaces in a load-bearing wall house were investigated. The key finding results are 1) steel reinforced concrete structure is needed to be reduced due to its high capability of heat accumulation 2) measured data showed that peck temperatures occurred in late afternoon due to the material’s heat inertia. A new wall system that use the same material was developed. The new wall has the less mass and the air inside the block’s cavities could be ventilated by stack effect in order to reduce heat build-up in the wall and lower peak temperatures of the spaces.


11:40am - 11:50am

The Roof Impact On The Heat Balance Of Low Height Buildings At Low Latitudes

Jefferson Eloy Torres Quezada, Helena Coch-Roura, Antonio Isalgué, Judit Lopez-Besora

Architecture & Energy , School of Architecture, Polytechnic University of Catalonia

The central scope of this work is the architecture element roof, analysed through its close relationship with two conditions of low latitude regions. First, its relationship with climate conditions, in reference with the high amount of solar radiation it is exposed to, and second, the roof importance, in terms of area, in the middle of a disperse urban tissue. Thus, this study addresses the roof impact on residential buildings interior conditions, in these regions. This investigation has been handled with the use of simulation software. The input data and results were based and validated with a measurements campaign carried out in a seaside city of Ecuador. The results highlight the roof as the principal source of heat gains on the interior heat balance, even higher than direct solar gains through windows.