Yaw-Shyan Tsay

Yaw-Shyan Tsay
National Cheng Kung University | NCKU · Department of Architecture

PhD

About

63
Publications
9,686
Reads
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102
Citations
Citations since 2016
44 Research Items
80 Citations
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201620172018201920202021202201020304050
201620172018201920202021202201020304050
Introduction
Yaw-Shyan is a Professor of Dept. Architecture at National Cheng Kung University (NCKU). He is the leader of SBED Lab. (Sustainable Building Engineering for Design)and AA Lab. (Architectural Acoustics). He was awarded the Outstanding Contribution Award, the Architecture Award for Young Generation, Creative Teacher Award, and Best Paper Award.
Additional affiliations
August 2021 - present
National Cheng Kung University
Position
  • Professor
February 2013 - August 2021
National Cheng Kung University
Position
  • Professor (Associate)
Education
October 2003 - September 2006
The University of Tokyo
Field of study
  • Department of Architecture, School of Engineering
August 1998 - June 2000
National Cheng Kung University
Field of study
  • Graduate School of Architecture
September 1994 - June 1998
National Cheng Kung University
Field of study
  • Department of Architecture

Publications

Publications (63)
Article
Full-text available
In response to sustainable development goals, the architectural industry aims to decrease the high proportion of emissions and energy use in the construction sector. Therefore, the design method of building performance optimization (BPO) has been advocated in recent studies as a method for accomplishing high-performance building design. However, BP...
Article
In recent years, increasing climate change has triggered the development of various techniques and strategies for predicting building energy consumption and thermal comfort. However, many features could affect prediction efficiency, and the coupling of appropriate learning algorithms with different sampling methods and input parameters requires fur...
Article
This research proposed an integrated strategy for building performance optimization from the whole life cycle perspective to explore the optimal building scheme. After the feature elimination, the ensemble learning model (ELM) was trained to obtain a high-precision model for predicting life cycle carbon emissions (LCCE), life cycle costs (LCC), and...
Article
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This study proposed an improved air conditioning design strategy based on building performance simulation for a stepped hall. The air velocity and air change rate of the case were measured on-site, which were compared with the simulation data to verify the reliability of the building simulation model. Then, the fully mixing ventilation scheme and t...
Article
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Recently, expanded metal mesh has been used on the facades of many buildings in Taiwan. Therefore, in this study, we evaluated the impact of expanded metal mesh on natural lighting and energy consumption in office buildings. First, the compatibility of EnergyPlus and DIVA simulation software with expanded metal mesh was verified using field measure...
Article
Full-text available
In this study, we investigated the impact of the lighting environment on psychological perception, physiology, and productivity and then designed lighting control strategies based on the experimental results. The research was conducted in a smart lighting laboratory, and 67 subjects were tested in different illuminances and correlated color tempera...
Conference Paper
Full-text available
Controlling incoming solar radiation to a building is one of the main targets of sustainable architecture designers because it decreases HVAC energy consumption and maximizes thermal comfort and usable daylight. The introduction of parametric design has allowed designers to expand their approaches to explore possibilities in façade forms and system...
Conference Paper
Full-text available
People typically spend 80-90% of their time indoors. Therefore, establishing prediction models to estimate particulate matter (PM2.5) concentration in indoor environments is of great importance, especially in residential households, in order to allow for accurate assessments of exposure in epidemiological studies. However, installing monitoring ins...
Article
In this paper, we proposed an integrated optimization framework to explore minimum building carbon emissions (BCE), indoor discomfort hours (IDH), and global cost (GC) of building, as well as a new formula for selecting the best scheme in the Pareto front set. Such framework improves the efficiency of the optimization process, the accuracy of the r...
Article
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Rapid urbanization has promoted house renovations and refurbishment in urban and rural cities. Indoor pollutants emitted through renovations and refurbishment processes have raised public concerns owing to their adverse effects on human health. In the present study, the sources of formaldehyde and specific volatile organic compounds (VOCs) are used...
Article
Research studies indicate that indoor temperature has different effects on people's psychology and work productivity in different regions, and there is a potential for building energy conservation. This study aims to research the balance between thermal comfort, productivity, and energy conservation of air-conditioning systems in office buildings i...
Article
Critical decisions about whether and how to integrate sustainability measures into the life cycle activities of green buildings are made in the early architectural design phase. To this end, researchers have advocated the use of various green building simulation technologies (GBSTs) to perform sustainability analyses to support integrated architect...
Article
In order to obtain information about building daylighting performance earlier in the design stage, recent studies have begun to develop daylight prediction models using machine learning methods. Most studies have adopted design variation parameters as the input parameters for model training, but this method greatly limits the scope of application o...
Article
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Global warming increases the probability of extreme events and heat waves triggering severe impacts on human health, especially the elderly. Taiwan is an aged society, so residential buildings, which cannot withstand extreme temperature events, increase the risk of harm for the elderly. Furthermore, Taiwanese prefer to open the windows to reduce in...
Article
Full-text available
In a subtropical climate like that of Taiwan, the high temperature and humid environmental conditions often result in discomfort and health effects for building occupants. With regard to building geometry, the wind environment and thermal comfort assessment, which can enhance energy efficiency and the comfort and health of occupants, both ought to...
Article
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This study aimed to evaluate the comprehensive percentage influence of input parameters on building energy and comfort performance by a new approach of sensitivity analysis (SA) and explore the most reliable and neutral sampling and sensitivity assessment method. The research combined 7 sampling methods with 13 SA methods to comprehensively integra...
Article
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Reverberation time (RT) is an important factor affecting the quality of indoor acoustics. Using sound-absorbing materials is one method for quickly and effectively controlling RT, and installation in the ceiling is a common location. Sound-absorbing ceilings come in many forms, with light steel joist ceilings commonly used in office spaces, classro...
Article
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Cross-laminated Timber (CLT) has become an emerging board material of wood construction that is strong enough to sustain a high-rise building. However, many wooden congregate housing units overseas that utilize CLT have poor sound environments because the low mass of such wood influences sound insulation performance. In this research, we explored t...
Article
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In 2015, Taiwan’s government announced the “Greenhouse Gas Reduction and Management Act”, the goal of which was a 50% reduction in carbon emissions by 2050, compared with 2005. The residential and commercial sectors produce approximately one third of all carbon emissions in Taiwan, and the number of construction renovation projects is much larger t...
Article
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In Taiwan, activity centers such as school auditoriums and gymnasiums are common multi-functional spaces that are often used for performances, singing, and speeches. However, most cases are designed using only Sabine’s equation for architectural acoustics. Although that estimation formula is simple and fast, the calculation process ignores many det...
Article
Full-text available
Since the sustainable issue has become a trend in recent years, the adoption of building performance analysis (BPA) tools in design process is not a news today. However, according to the literature review revealing the "rule of thumb" was still the measure when architects discuss the green building design. Also, the lack of background knowledge cou...
Article
近年來,由諸多文獻中發現在建築設計過程中以建築性能分析軟體輔助之相關議題,然而無論在業界實務端或學院教育,對於在設計流程中導入建築性能分析軟體的可信度、時間點、意願、操作流程及相關背景知識仍未成熟。因此,本研究著重於整合國內實務端設計工作流程與重點模擬分析項目,提出一套學習的參考架構,並對設計者進行教育訓練,以消弭設計階段應用分析軟體的障礙。本研究以7名建築系學生為對象,進行一學期的教育訓練實驗,透過問卷和訪談進行綜合性分析以評估訓練成效。實驗結果發現教育訓練具有良好成效,參與者對建築性能分析軟體的知識有顯著提升。雖然個體間學習成效存在差異(如參與者對技術易用性的認知不同),但對技術的價值認知與採納意願則皆有顯著提升。然而,建築能耗分析軟體被發現訓練成效不彰,可能歸因為該能源相關專業本身之複...
Article
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The bass ratio describes the relationship between the reverberation energy in the low frequency region and that of the middle frequency. An appropriate bass ratio can create a warm sound; however, too much bass can influence speech clarity (C50) and work efficiency and can even cause listeners to feel tired or exhausted. Using perforated plate reso...
Article
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Multi-layer cavity wall (MCW) systems, which refer to each panel in the structure being made up of two or more layers of lightweight board, have become more widely used. However, unlike the detailed approaches that were available for predicting single-layer cavity walls (SCW), few studies have addressed the MCW involving different layers attached t...
Conference Paper
Full-text available
To understand how people's psychology and physiology are affected by temperature in an indoor environment, we carried out a subject experiment of 42 males and 37 females in 20s to evaluate their psychological state and sensation at air temperatures of 22°C, 25°C, 27°C, and 29°C. The results showed that in Tainan, the neutral temperature of the ther...
Conference Paper
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A significant number of consumer productions and building materials can act as emission sources of formaldehyde and volatile organic compounds (VOCs) in the indoor environment. In Taiwan, multi-layer materials are decorated in indoor environments widely, but only a few pieces of literature reported the relation- ship and efficiency of multi-layer m...
Article
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Recently, micro-perforated panels (MPP) have become a popular sound absorbing material in the field of architectural acoustics. However, the cost of MPP is still high for the commercial market in Taiwan, and MPP is still not very popular compared to other sound absorbing materials and devices. The objective of this study is to develop a prediction...
Conference Paper
Full-text available
Modern living exposes people to a vast array of building materials and consumer products, many of which release volatile organic compounds (VOCs), including formaldehyde, benzene, and phenol, which contribute substantially to the degradation of indoor environment quality. To control pollutant sources, label schemes for low VOC emission products wer...
Conference Paper
Full-text available
Expanded metal mesh has become widely used as a shading element in the façade of many buildings in recent years, and its energy saving performance has been evaluated in tropical/subtropical countries. However, expanded metal mesh reduces solar radiation while also reducing the natural daylight entering the building. This study’s objective is to ass...
Article
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The adsorption of volatile organic compounds by building materials reduces the pollutant concentrations in indoor air. We collected three interior building materials with adsorption potentials—latex paint, micro-carbonized plywood, and moisture-buffering siding—used the sorptive building materials test (SBMT) to determine how much they reduced indo...
Conference Paper
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Since being implemented years ago, the Green Building Material (GBM) labeling system has been a mandatory part of Taiwan's building code. The government announced a design guide for using the surface area ratio of GBM, in which the indoor surface area should be calculated in building permit documents. Calculating the total surface area of an entire...
Conference Paper
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An open plan design, which refers to removing partitions to achieve a streamlined style for both the visual aspect and movement, has gradually become the mainstream as modern residences aim to incorporate bright and spacious surroundings. However, removing partitions can cause interruptions in sound among functional spaces and reduce speech privacy...
Conference Paper
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In line with low-carbon policies around the world, the government has promoted the Green Building (GB) and Green Building Material (GBM) labeling policy in Taiwan. First implemented in 2004, 1,888 labels had been certified for 13,595 products as of the end of 2017. Since 2006, the building code has required usage of 5% GBM products for the interior...
Conference Paper
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The open book stacks style, which integrates book storage and reading spaces together, is very popular in modern library design. However, this design is complicated by the different thermal and humidity conditions that are required by a library's occupants and its book, with the thermal comfort and air quality of the occupants taking precedence. Fu...
Conference Paper
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With the global energy crisis becoming quite serious in recent years, many building energy simulation tools that can evaluate and perform optimization in a design process have been developed to aid in green building design. However, since many such software programs were initially designed for engineers, the interfaces are often complex, while the...
Conference Paper
Full-text available
In both tropical and subtropical regions, building envelopes adopt shading and glazing to make critical contributions to the building's energy efficiency. The building code and green building certification programs in many countries have previously evaluated the performance of shading devices. Recently, expanded metal mesh has become a popular shad...
Article
Full-text available
In the indoor air environment in Taiwan, formaldehyde concentration stays at a high level, which is an important issue affecting indoor air quality, and the formaldehyde issue in medical building spaces is more severe. The novel formaldehyde sensor based on microelectromechanical systems (MEMS), which uses quartz glass as basic material, platinum a...
Article
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This study focused on greening designs for building openings. Field experimentation was conducted and Computational Fluid Dynamics (CFD) software was used for simulation in order to analyze the influence of different greening design modes on indoor temperature. A greening design mode suitable for the opening of houses in Kaohsiung was proposed. Thi...
Conference Paper
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In recent years, the Taiwanese government has become more interested in improving indoor air quality. Because of the island's hot and humid climate, large amounts of condensed water form on the chilling coils of air conditioning systems, which can result in significant microbial pollution in systems without an appropriate design and maintenance. So...
Conference Paper
Full-text available
Urban heat island has become a critical issue in the recent years, and thus, to enhance greenness in buildings has been proposed and considered as an effective strategy for cities with high density. Some studies proposed that applying vertical greenery on corridors or balconies with cross ventilation (the living wall systems) could improve the effe...
Conference Paper
Full-text available
Taiwan lies within the subtropical climate region with a hot and humid climate that creates an ideal environment for the spread of microbes such as fungi and mold and thus causes significant microbial pollution. A moisture buffering effect to provide passive moisture control by using wooden materials has been suggested as an effective way to minimi...
Conference Paper
Full-text available
Recently, vertical greenery systems have been suggested in cities worldwide to improve thermal comfort, ecology, and even psychology. However, few simulation models for vertical greenery systems have focused on the evapotranspiration rate, which plays an important role on both thermal comfort and energy conservation. The objective of this study is...
Conference Paper
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Considering the future lifestyle trend, this project aims to integrate the concepts of " health " , " intelligent " and " digital " , in order develop a home management system for healthy environment, call iMOD (integrated Multi-media On Demand). It is expected to ensure the indoor environment health (IEH) of users, as well as enhance the quality o...
Conference Paper
Full-text available
The adsorptions of building materials can have a significant effect on improving the indoor concentration and distribution of volatile organic compounds. We collected three interior building materials—latex paint, micro-carbonization plywood, and moisture-buffering siding—with sorption potentials and establish the sorptive building materials test (...
Article
Full-text available
An experimental investigation is conducted into the indoor formaldehyde decomposition performance of an atmospheric plasma reactor with an airflow rate of 200 L/s, discharge power of 50 W, and operating voltage of 8.5 kV, utilizing a sensor network. It is shown that, given an initial formaldehyde concentration of ∼0.2 ppm, the reactor removes 15∼80...
Conference Paper
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In Taiwan, the energy structure relies mainly on thermal power and other renewable energy sources. However, a high number of these energy sources are imported. The data indicate the rate of energy importation has increased to 99.4% over the past 20 years. The high population density and geographical conditions in Taiwan are not conducive to large-s...
Article
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The purpose of the present work is to use an explicit finite element code to model the impact behavior of a heavyweight impact source like rubber ball and to predict the floor impact vibration of resilient materials, which are used in the floor coverings construction for sound insulation. To simulate the impact force of rubber balls, the hypervisco...
Article
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Moisture buffering is critical for indoor air quality and human health. The objectives of this study were to define the hygroscopic properties of Douglas fir, confirming the relation between the indoor ventilation rate and the moisture buffering effect, using the mold germination graph method (Moon, 2005) to evaluate the mold growth risk, particula...
Article
To judge the sound insulation of the floor coverings construction, one common way is to measure the impact sound insulation of a small size specimen in a full-scale building by using a heavy weight impact source like rubber ball. However, according to the standard testing procedure, this measurement is very complicated and needs expensive equipment...
Article
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The living quality of the Taiwanese citizens keeps rising; the improvement of floor impact sound has being carried out into practical project gradually. The void slab, used to be used in huge span building, is very common in housing building. From reference, the void slab represents the one of the latest architectural facilities, which focuses on t...
Conference Paper
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The performance of impact sound insulation of floors is one of the essential factors regarding indoor environment quality. Floor coverings construction for improving floor impact sound insulation is the most common method in Taiwan. However, designs and constructors usually use only one layer of material over the construction floor; and recently, a...
Conference Paper
The humidity issue is one of the essential factors regarding the indoor environment quality. Researchers attempt to control the moisture in different methods, and the quantity of the researches keeps rising, which indicates the importance of the moisture buffering effect. The moisture buffering effect is a kind of passive design method, which is co...
Article
Full-text available
The humidity issue is one of the essential factors regarding the indoor environment quality. Researchers attempt to control the moisture in different methods, and the quantity of the researches keeps rising, which indicates the importance of the moisture buffering effect. The moisture buffering effect is a kind of passive design method, which is co...
Conference Paper
Full-text available
The purpose of this study is to realize features of energy efficiency of desiccant air-conditioning system for dedicated air conditioning system and propose new high efficiency application of dedicated air conditioning systems with desiccant air-conditioner. Many of advanced air conditioning systems, for example, displacement air conditioning syste...
Conference Paper
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The purpose of this study is to realize a non-condensing environment by developing a new type of desiccant air-conditioning system with lower energy consumption. In this paper, a displacement air-conditioning system with a desiccant outdoor air-conditioning unit is proposed and the overall energy efficiency of this system is compared with that of t...
Article
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There are many factors both from outdoor (For example: natural ventilation etc.) and indoor (For example: human bodies, a hot-water supply equipment, the moisture-conditioning material etc.) which contribute to the indoor humidity environment. The purpose of this study is to investigate the contribution of each factor to the indoor climate. In this...
Conference Paper
Full-text available
A desiccant air-conditioning system has been suggested as being suitable to improve indoor air quality due to its superior humidity control. However, this system has the drawback of being less energy efficient, so it is typically used in conjunction with co-generation systems or solar heating systems to improve its energy efficiency. In previous st...
Conference Paper
Full-text available
In hot and humid climates, desiccant air-conditioning systems have been suggested as suitable for improving Indoor Air Quality (IAQ). Generally as dehumidification devices, various types of silica gel rotor have been used to control humidity. In this study, we evaluated the dehumidification performance of the Functional Adsorbent Material - Zeolite...
Conference Paper
Full-text available
This study presents a multi-objective optimum design method for reliable indoor humidity environments based on the appropriate use of moisture-conditioning materials. In this paper, (1) a transient prediction of indoor air temperature and humidity in a model living room is developed by employing indices for the contribution ratio of indoor climate...
Article
Full-text available
Recently, issues regarding health problems related to dampness in buildings have been widely reported in Europe and America. In some studies, a moisture buffer effect that provides passive moisture control using interior materials was proposed as an effective way to alleviate such dampness problems. Until now, in order to evaluate the moisture buff...
Article
Full-text available
In hot and humid climates, dampness in buildings leads to significant microbial pollution and building damage. In order to alleviate this problem, a desiccant cooling system was suggested as a suitable system to improve indoor air quality (IAQ) based on its superior humidity control. However, such systems have lower energy efficiency, so their comb...
Article
In hot and humid climates, dampness in buildings leads to significant respiratory symptoms and damage to buildings. A damp house can be recognized by one or more of the following characteristics: damp stains, mold growth, condensation, a musty smell or stuffy atmosphere, and insects such as silverfish and sow bugs. To improve this problem, a desicc...
Conference Paper
Full-text available
In hot and humid climates, dampness in buildings leads to significant respiratory symptoms and damage of building. A damp house can be recognized by one or more of the following characteristics: damp stains, mold growth, condensation, a musty smell or stuffy atmosphere, and insects such as silverfish and sow bugs. To improve the problem, reducing t...

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