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Full-Text Articles in Engineering Physics

Interior Insulation Retrofit Of A Brick Wall Using Super Insulation Materials: Design Of A Field Testing In An Industrial Brick Building, Pär Johansson, Paula Wahlgren Sep 2018

Interior Insulation Retrofit Of A Brick Wall Using Super Insulation Materials: Design Of A Field Testing In An Industrial Brick Building, Pär Johansson, Paula Wahlgren

International Building Physics Conference 2018

The societal demands on a more energy efficient building stock in Sweden creates challenges to find suitable retrofitting measures. One of the measures currently discussed is to use interior insulation. This measure leads to a reduced temperature in the wall, which increases the risk for elevated moisture levels in the wall. When the thickness of the insulation layer is limited, super insulation materials (SIM) may be used. SIM can be divided into advanced porous materials, such as aerogel blankets (AB), and vacuum insulation panels (VIP). Often moisture from the outside is the major moisture source why a solution may be …


Cross-Platform, Public Domain Simulation Tools For Performing Parametric Iaq And Energy Analysis, Stuart W. Dols, Lindsay J. Underhill Sep 2018

Cross-Platform, Public Domain Simulation Tools For Performing Parametric Iaq And Energy Analysis, Stuart W. Dols, Lindsay J. Underhill

International Building Physics Conference 2018

As building design is being driven towards lower energy use, the relationship between indoor air quality (IAQ) and energy becomes more important due in large part to reduced building envelope leakage, which can lead to higher indoor pollutant levels. Simulation tools that can analyze building design measures that aim to improve IAQ and energy use are necessary for evaluating potential trade-offs involving such measures. This paper will present the use of CONTAM and EnergyPlus, coupled using co-simulation, to perform parametric analysis of IAQ and energy impacts. Both of these tools are available in the public domain and provide cross-platform methods …


A Gis Based Methodology To Support Multi-Criteria Decision Making For The Retrofitting Process Of Residential Buildings, Kristina Orehounig, Emmanouil Thrampoulidis, Georgios Mavromatidis, Jan Carmeliet Sep 2018

A Gis Based Methodology To Support Multi-Criteria Decision Making For The Retrofitting Process Of Residential Buildings, Kristina Orehounig, Emmanouil Thrampoulidis, Georgios Mavromatidis, Jan Carmeliet

International Building Physics Conference 2018

This paper presents a workflow to support the decision making for building retrofit and building systems update at urban scale. The workflow includes i) a method to extract information from a geographical information system including information on building characteristics, building systems and building typology, ii) a method to evaluate the current and future energy demand of buildings using a dynamic building simulation tool, and iii) an updated version of the energy hub approach to evaluate best performing options in terms of energy systems update. The developed method is applied to the city of Zurich to evaluate the optimal energy system …


Experimental Study On The Stomatal Resistance Of Green Roof Vegetation Of Semiarid Climates For Building Energy Simulations, Ursula Steinfort, Rocío Arriola-Cepeda, Sergio Vera, Francisco Albornoz Sep 2018

Experimental Study On The Stomatal Resistance Of Green Roof Vegetation Of Semiarid Climates For Building Energy Simulations, Ursula Steinfort, Rocío Arriola-Cepeda, Sergio Vera, Francisco Albornoz

International Building Physics Conference 2018

Current modelling approaches for energy simulations in green roofs use a range of values for parameters such as stomatal resistance (rs) of the vegetation. rs reflects the capability of a plant to transpire, thus it has a direct relation to the cooling potential of green roofs in buildings. Therefore, rs values need to be revised based on differences among species and contrasting environmental conditions, considering anatomical and physiological characteristics among species and their changes throughout the day. In order to provide real data on species commonly used for green roofs in semiarid climates, this paper aims to evaluate the stomatal …


Preparation And Thermal Performance Of Diatomite-Based Composite Phase Change Materials Wallboard, Chaoen Li, Hang Yu, Yuan Song Sep 2018

Preparation And Thermal Performance Of Diatomite-Based Composite Phase Change Materials Wallboard, Chaoen Li, Hang Yu, Yuan Song

International Building Physics Conference 2018

Two kinds of diatomite-based composite phase change materials (the phase change temperature was 35℃ and 42℃, respectively) were prepared by incorporating organic alcohol phase change materials into diatomite to form shape-stabilized composite PCMs. Then, diatomite-based phase change wallboards were fabricated, and the wallboards were attached to the exterior surface of the wall from a test small room to study the thermal performance. In this study, we investigated the effects on the wallboards location, the type of materials and the phase transition temperature on the thermal performance of the wallboards. It was found that comparing with the traditional polystyrene plastic insulation …


Thermal Stability Of Lightweight Frame Partitions Exposed To Pulsed Wind Load, Piotr Kosiński, Robert Wójcik, Beata Semen Sep 2018

Thermal Stability Of Lightweight Frame Partitions Exposed To Pulsed Wind Load, Piotr Kosiński, Robert Wójcik, Beata Semen

International Building Physics Conference 2018

Much has been said about air infiltration, especially of ventilation losses and air quality. There is less information on heat losses through increased convection. This problem particularly concerns on one sided wind washing of the building envelope characterised with seeming airtightness of construction partitions. On the base of measurements undertaken in existing buildings constructed as lightweight timber structures filled with fiber materials it can be seen that air filtration also contributes to increased heat transfer through the building envelope. This paper presents the results of the research on the thermal stability of building partitions insulated with fiber materials and exposed …


Retrofit Of The Existing Buildings Using A Novel Developed Aerogel-Based Coating: Results From An In-Field Monitoring, Stefano Fantucci, Elisa Fenoglio, Giulia Grosso, Valentina Serra, Marco Perino, Marco Dutto, Valentina Marino Sep 2018

Retrofit Of The Existing Buildings Using A Novel Developed Aerogel-Based Coating: Results From An In-Field Monitoring, Stefano Fantucci, Elisa Fenoglio, Giulia Grosso, Valentina Serra, Marco Perino, Marco Dutto, Valentina Marino

International Building Physics Conference 2018

The energy retrofit of existing buildings and more in general building rehabilitation represents an important challenge in EU countries since a large part of their building stock is old, poorly insulated and affected by pathologies, i.e. mould growth, with relevant implications on users health other than aesthetical drawbacks. Unfortunately, the energy retrofit of existing buildings and particularly when dealing with historic buildings presents several issues, i.e. the compatibility between the identified solutions and the heritage value or the reduction of the internal space if internal solutions have to be adopted. An emerging solution to address the target of the energy …


Experimental Study Of The Performance Of A Double Skin Façade Window Under Non-Solar Conditions, Jiayi Zhu, Guoqing He, Qihuan Luo, Yu Liu Sep 2018

Experimental Study Of The Performance Of A Double Skin Façade Window Under Non-Solar Conditions, Jiayi Zhu, Guoqing He, Qihuan Luo, Yu Liu

International Building Physics Conference 2018

This paper reports measured heat transfer coefficient of a double skin façade (DSF) window measured 1.1 m by 0.7 m at varied depth in the absence of solar radiation using a calorimeter box. The results showed that the DSF had better insulation than the double glazing especially with cavity closed. All the studied factors (ventilation, cavity width, and outdoor temperature) had influence on the heat transfer coefficient and such influence could be season specific. Measurements confirmed the existence of an optimal width in winter for best insulation.


Integrated Vegetation Model For Studying The Cooling Potential Of Trees In Urban Street Canyons, Lento Manickathan, Aytaç Kubilay, Thijs Defraeye, Jonas Allegrini, Dominique Derome, Jan Carmeliet Sep 2018

Integrated Vegetation Model For Studying The Cooling Potential Of Trees In Urban Street Canyons, Lento Manickathan, Aytaç Kubilay, Thijs Defraeye, Jonas Allegrini, Dominique Derome, Jan Carmeliet

International Building Physics Conference 2018

Vegetation in cities provides natural cooling of the climate and is therefore increasingly integrated as an essential part of Urban Heat Island (UHI) mitigation strategies. In the present study, the influence of trees on the local climate in a street canyon is studied using an integrated vegetation model in OpenFOAM. Vegetation is modeled as porous medium providing the necessary source terms for the heat, mass and momentum fluxes. Additionally, a radiation model is developed to model the short-wave and long-wave radiative heat flux exchanges between vegetation and the surroundings. The study investigates the influence of transpirative and shaded cooling due …


Thermal Performance Of A Green Roof Based On Champs Model And Experimental Data During Cold Climatic Weather, Yige Yang, Cliff I. Davidson Sep 2018

Thermal Performance Of A Green Roof Based On Champs Model And Experimental Data During Cold Climatic Weather, Yige Yang, Cliff I. Davidson

International Building Physics Conference 2018

Green roofs are increasingly implemented in cities around the world. They have the potential to improve thermal performance of building systems through evapotranspiration, thermal mass, insulation and shading. Several studies have analyzed the heat flow impact of green roofs in hot weather, but few studies have examined the thermal performance during cold conditions. Roof membranes are known to fail in cold climates due to stress caused by large temperature fluctuations. A green roof can reduce the daily membrane temperature fluctuations (Tmax - Tmin) by an average of 7◦C. This study presents an experimental investigation of a large extensive green roof …


Conserving Energy, Conserving Buildings: Airtightness Testing In Historic New England Homes, David Fannon, Jamaica Reese-Julian Sep 2018

Conserving Energy, Conserving Buildings: Airtightness Testing In Historic New England Homes, David Fannon, Jamaica Reese-Julian

International Building Physics Conference 2018

As a location of early European settlement, New England enjoys a wealth of historic buildings, which represent a rich cultural heritage and insight into New England life. Their longevity also offers the opportunity to identify the characteristics of long-lasting buildings, and to guide design for the historic buildings of the future. Old buildings are inherently sustainable; both because of abstract ideas like “embodied energy” but also by sustaining history and culture over time. This study combines field methods from vernacular architecture (a branch of material culture studies) and building science (which exists between architecture and engineering) to conduct detailed investigations …


Occupants’ Perception Of Historical Buildings’ Indoor Environment. Two Case Studies., Giorgia Spigliantini, Valentina Fabi, Marcel Schweiker, Stefano Paolo Corgnati Sep 2018

Occupants’ Perception Of Historical Buildings’ Indoor Environment. Two Case Studies., Giorgia Spigliantini, Valentina Fabi, Marcel Schweiker, Stefano Paolo Corgnati

International Building Physics Conference 2018

In Europe, some historical cities have more than 50% of buildings dated from before 1920. Nowadays, these buildings faces challenges when adapted to the current necessities of livability, environmental and economical sustainability. Literature demonstrates that occupants’ comfort perception and consequent behavior affect buildings’ energy efficiency and are influenced also by the building configuration. Despite a large number of studies in literature investigating occupants’ behavior and comfort in different situations, there is a lack of such studies for historical buildings. Therefore, the objective of this paper was to characterize occupants’ thermal and comfort perception in two historical buildings during summer season. …


Towards Human-Centred Intelligent Envelopes: A Framework For Capturing The Holistic Effect Of Smart Façades On Occupant Comfort And Satisfaction, Alessandra Luna-Navarro, Mauro Overend Sep 2018

Towards Human-Centred Intelligent Envelopes: A Framework For Capturing The Holistic Effect Of Smart Façades On Occupant Comfort And Satisfaction, Alessandra Luna-Navarro, Mauro Overend

International Building Physics Conference 2018

Intelligent buildings have the potential to simultaneously revolutionise the way humans live and reduce energy demand in buildings. In particular, the so-called, smart / dynamic / adaptive building envelope can selectively modulate the energy transfer between the building and its environment in response to transient outdoor conditions and indoor requirements, thereby providing a low-carbon means of achieving occupant satisfaction and well-being. However, the effect of smart facades on holistic occupant comfort and satisfaction with the environment is yet to be fully captured and quantified. This information is essential for evidence-based design and control of smart building envelopes. In this paper, …


A Novel Approach To Near-Real Time Monitoring Of Ventilation Rate And Indoor Air Quality In Residential Houses, Achalu Tirfe, Jianshun Zhang Sep 2018

A Novel Approach To Near-Real Time Monitoring Of Ventilation Rate And Indoor Air Quality In Residential Houses, Achalu Tirfe, Jianshun Zhang

International Building Physics Conference 2018

Physics-based infiltration models, like Lawrence Berkeley Laboratory (LBL) and Alberta Infiltration Model (AIM-2), have been used to predict infiltration rate in near-real time. These models are derived from the driving forces of wind and temperature difference across the building enclosure system, both of which cause pressure differences across the enclosure system for infiltration. The model incorporates other major factors like building leakage characteristics, distributions of openings, microenvironment conditions around the building enclosure as affected by building shields, topography and building shape. The accuracy of the models dependents on getting these factors right. However, these factors are specific for individual buildings …


Design And Operational Strategies For Good Indoor Air Quality In Low-Energy Dwellings: Performance Evaluation Of Two Apartment Blocks In East London, Uk, Esfand Burman, Clive Shrubsole, Samuel Stamp, Dejan Mumovic, Michael Davies Sep 2018

Design And Operational Strategies For Good Indoor Air Quality In Low-Energy Dwellings: Performance Evaluation Of Two Apartment Blocks In East London, Uk, Esfand Burman, Clive Shrubsole, Samuel Stamp, Dejan Mumovic, Michael Davies

International Building Physics Conference 2018

To achieve stringent energy objectives, new dwellings are subject to energy conservation measures including low air permeability and high levels of insulation. Mechanical Ventilation with Heat Recovery (MVHR) can be used to control the balance between energy efficiency and Indoor Air Quality (IAQ) in these buildings. This paper evaluates the effectiveness of the design and operational strategies adopted in a new development comprising two apartment blocks in East London. The findings point to significant gaps in operational energy use compared against design projections, and high concentrations in benzene and formaldehyde three years after construction. It is suggested that a combination …


Effects Of Semi-Open Space On Micro-Environmental Control, Meng Kong, Jianshun Zhang Sep 2018

Effects Of Semi-Open Space On Micro-Environmental Control, Meng Kong, Jianshun Zhang

International Building Physics Conference 2018

Semi-open space (SOS) is defined as a space semi-confined by partitions in an open space environment. Most of the previous indoor environmental researches were focused on the open space environment, while only a few of them looked into the performance of the SOS. The existence of the SOS is for providing a certain level of privacy to the occupant, but it has been reported that it significantly affects the room air distribution, hence the thermal environment and indoor air quality. The micro-environment control system is defined as a system which provides heating, cooling or ventilation to the occupant locally. In …


A New Normative Workflow For Integrated Life-Cycle Assessment, Karen Angeles, Dimitrios Patsialis, Tracy Kijewski-Correa, Alexandros Taflanidis, Charles F. Vardeman Ii, Aimee Buccellato Sep 2018

A New Normative Workflow For Integrated Life-Cycle Assessment, Karen Angeles, Dimitrios Patsialis, Tracy Kijewski-Correa, Alexandros Taflanidis, Charles F. Vardeman Ii, Aimee Buccellato

International Building Physics Conference 2018

In order to curtail energy use by the building sector, consideration of how a "sustainable" building is constructed is paramount, in many respects, to how efficiently it operates over its lifetime. A typical building must be in use for decades before the energy expended in its daily operations surpasses the energy embodied within its initial construction, as a result of the materials used. More vitally: every building has specific vulnerabilities, particularly to hazards (e.g., earthquakes, wind, flooding) whose effects on sustainability are not explicitly considered alongside other aspects of sustainability in the design process – despite the significant environmental impact …


Big-Open-Real-Bim Data Model - Proof Of Concept, Galina Paskaleva, Sabine Wolny, Thomas Bednar Sep 2018

Big-Open-Real-Bim Data Model - Proof Of Concept, Galina Paskaleva, Sabine Wolny, Thomas Bednar

International Building Physics Conference 2018

The goal of Building Information Modeling (BIM) is the continuous use of digital construction models from the planning stage onwards. The affected processes are iterative and involve multiple stakeholders who work at varying pace and in varying levels of detail. These stakeholders require highly specific tools based on diverging data models. To satisfy all those requirements one of the best known Open BIM implementations – IFC – offers a data model containing more than one thousand different types – from basic to highly specific. Due to its complexity, potential users must undergo prolonged training. The even bigger challenge for IFC, …


Optimization Of Four-Primary White Leds Based On Protective Effect And Color Quality-A Solution For Museum Illumination, Rui Dang, Nan Wang, Gang Liu, Huijiao Tan Sep 2018

Optimization Of Four-Primary White Leds Based On Protective Effect And Color Quality-A Solution For Museum Illumination, Rui Dang, Nan Wang, Gang Liu, Huijiao Tan

International Building Physics Conference 2018

A solution was proposed for obtaining white light-emitting-diodes (LEDs) which are suitable for illuminating traditional Chinese paintings painted with inorganic pigments (iop-TCPs) based on the requirements of protective illumination and color quality. The damage laws and degrees of 450nm, 510nm, 583nm, and 650nm monochromatic lights which can construct four-primary white LEDs on the iop-TCPs were obtained through long-term illumination experiment and data analysis by converting color coordinates into CIE DE2000 color difference values. Then we obtained the damage formula of the constructed white LEDs, which can be used to evaluate damage degree. Spectral power distributions (SPDs) of the white LEDs, …


Field Occupants’ Behavior Monitoring Integrated To Prediction Models: Impact On Building Energy Performance, Cristina Piselli, Ilaria Pigliautile, Anna Laura Pisello Sep 2018

Field Occupants’ Behavior Monitoring Integrated To Prediction Models: Impact On Building Energy Performance, Cristina Piselli, Ilaria Pigliautile, Anna Laura Pisello

International Building Physics Conference 2018

Given the massive scientific progress on passive and active solutions to reach near-zeroenergy targets, the necessity to consider occupants’ behavior as a key variable affecting field energy performance of buildings has become a crucial issue to face. In this panorama, a variety of deterministic and stochastic models, also supported by experimental investigations have been developed in the last decade. This paper builds upon previous contributions to analyze the real occupancy of an office building populated by peers’ offices monitored for 2 years by means of microclimate and energy-need field stations. After demonstrating that the peers do not behave the same …


The Physics In Natural Ventilation Of Cities And Buildings, Yuguo Li Sep 2018

The Physics In Natural Ventilation Of Cities And Buildings, Yuguo Li

International Building Physics Conference 2018

Asian cities are mostly taller, denser, deeper and larger than those in the West, and the magnitudes of building drag or urban heat island circulation and their effects on city ventilation are also stronger. The physics of urban climate in these large cities is complex, as a combined result of local circulation and synoptic winds modified by the mountainous topography and land/sea breeze, if any. Natural ventilation of a city refers to the penetration and distribution of rural air into an urban canopy layer. The weakened city ventilation has become one major reason for worsening urban warming and air pollution …


Green Infrastructure And Urban Sustainability: Recent Advances And Future Challenges, Patricia J. Culligan, Robert A.W. Carleton, Christine S. Carleton Sep 2018

Green Infrastructure And Urban Sustainability: Recent Advances And Future Challenges, Patricia J. Culligan, Robert A.W. Carleton, Christine S. Carleton

International Building Physics Conference 2018

Although the majority of urban green infrastructure (GI) programs in the United States, and elsewhere, are being driven by stormwater management challenges arising as a result of the impervious nature of modern cities, GI is also believed to provide other benefits that enhance urban sustainability. This paper discusses the role that GI systems might play in urban climate adaptation strategies for cities like New York City, where increases in both temperature and precipitation are projected over the coming decades. Examples of work conducted by the author and colleagues in New York City to quantify the performance of urban GI are …


A Picture Is Worth A Thousand Words: Smartphone Photograph-Based Surveys For Collecting Data On Office Occupant Adaptive Opportunities, William O'Brien, Anthony Fuller, Marcel Schweiker, Julia Day Sep 2018

A Picture Is Worth A Thousand Words: Smartphone Photograph-Based Surveys For Collecting Data On Office Occupant Adaptive Opportunities, William O'Brien, Anthony Fuller, Marcel Schweiker, Julia Day

International Building Physics Conference 2018

In the past several decades, psychological aspects have been become important to holistic building occupant comfort and satisfaction evaluations. Psychological dimensions of comfort include occupants’ opportunities to interact with their indoor environment and perceived control over the indoor environment. Current post-occupancy evaluations tend to focus on collecting quantitative data, despite overwhelming evidence that contextual factors can profoundly impact occupant comfort. This paper proposes and tests a novel method for data collection to study adaptive comfort opportunities. A smartphone-based survey was developed to concurrently collect office occupants’ subjective evaluations of usability and comfort of spaces, in addition to photographs of all …


Moisture Robustness Of Eaves Solutions For Ventilated Roofs – Experimental Studies, Steinar Grynning, Silje Kathrin Asphaug, Lars Gullbrekken, Berit Time Sep 2018

Moisture Robustness Of Eaves Solutions For Ventilated Roofs – Experimental Studies, Steinar Grynning, Silje Kathrin Asphaug, Lars Gullbrekken, Berit Time

International Building Physics Conference 2018

Ventilated pitched wooden roofs with eaves (roof overhangs) is a common building practice in the Scandinavian countries. The eaves are protecting the façade from rain, wind driven rain (WDR) and snow, and it covers the roof ventilation aperture. The eaves should be designed so that the least possible amounts of rainwater and snow enters the ventilation aperture between the roof cladding- and underlayer roofing. At the same time, adequate ventilation of the roof must be ensured to promote proper drying-out capabilities of the roof and to avoid problems of snow melt and ice formation at eaves and gutters during winter …


Thermal Performance Of Novel Natural Ventilation Apertures In A High- Performance Single-Family House, Martha Bohm Sep 2018

Thermal Performance Of Novel Natural Ventilation Apertures In A High- Performance Single-Family House, Martha Bohm

International Building Physics Conference 2018

Natural ventilation provides opportunities to reduce residential cooling load in summer, but increasing the operability of a façade potentially increases infiltration, which is already a source of significant winter heat load. Solving both of these simultaneously is challenging. The test building for this study was a prototype house containing a novel ventilator detail which allows for porosity for summer ventilation and a tight, insulated seal in winter. We aimed to determine whether the prototype had low enough infiltration and thermal bridging to be worthy of further laboratory testing and subsequent deployment in more buildings. The test home was blower door …


An Implementation For Transforming A Home Energy Management System To A Multi-Agent System, Helia Zandi, Michael Starke, Teja Kuruganti Sep 2018

An Implementation For Transforming A Home Energy Management System To A Multi-Agent System, Helia Zandi, Michael Starke, Teja Kuruganti

International Building Physics Conference 2018

In the United States, 41% of produced energy is consumed by the building sector, i.e. residential and commercial buildings (Building Energy Data Book, Buildings Sector, US Department of Energy, Office of Energy Efficiency and Renewable Energy, Building Technologies Office, 2012. n.d.). The anticipation is that Home Energy Management Systems (HEMS) will support energy efficiency gains through control of the devices in an optimal fashion. New opportunities are offering the ability to integrate grid type controls and the most suitable way to perform these controls is through a multi-agent system (MAS). In this paper, approaches on supporting a HEMS and MAS …


A Novel Methodology To Spatially Evaluate Dgp Classes By Means Of Vertical Illuminances. Preliminary Results, Luigi Giovannini, Fabio Favoino, Valerio R.M. Lo Verso, Anna Pellegrino, Valentina Serra Sep 2018

A Novel Methodology To Spatially Evaluate Dgp Classes By Means Of Vertical Illuminances. Preliminary Results, Luigi Giovannini, Fabio Favoino, Valerio R.M. Lo Verso, Anna Pellegrino, Valentina Serra

International Building Physics Conference 2018

A novel methodology to overcome the main limit of the Daylight Glare Probability DGP (i.e. the heavy computational time for an annual analysis of the DGP profile in one point) is presented. This uses a proxy based on the vertical illuminance (Ev) at the eye level. To do so, the most suitable value of Ev, to substitute DGP, is found by means of a comparison to the corresponding DGP value through a fault-detection diagnosis technique. The methodology was applied to a representative enclosed office with one South-facing window (Window-to-Wall Ratio of 50%) located in Turin. The glazing was assumed to …


Comparative Study Of Different Design Configurations Based On The Daylight And Visual Comfort Performance Of Electrochromic Glass In A Side-Lit Office Building, Amir Hosseinzadeh Zarrabi, Mona Azarbayjani, Armin Amirazar, Roshanak Asharafi Sep 2018

Comparative Study Of Different Design Configurations Based On The Daylight And Visual Comfort Performance Of Electrochromic Glass In A Side-Lit Office Building, Amir Hosseinzadeh Zarrabi, Mona Azarbayjani, Armin Amirazar, Roshanak Asharafi

International Building Physics Conference 2018

The objective of this research is to demonstrate the application of an optimization framework to assess and improve the impacts of workstation properties in relation to the performance of electrochromic glass regarding daylight and visual comfort. This framework is executed through a simulation-based parametric modeling workflow of an open-plan office to optimize partition layout, height, direction to windows, and materiality in response to annual glare probability (DGP) and climate-based daylighting metrics. In this paper, different office layouts equipped with Electrochromic glass, located in a mixed-humid climate has been simulated with DIVA plug-in for Rhinoceros/grasshopper software to maximize the daylight and …


Development Of An Electric-Driven Smart Window Model For Visual Comfort Assessment, Michelangelo Scorpio, Giuseppina Iuliano, Antonio Rosato, Sergio Sibilio, Luigi Maffei, Giuseppe Peter Vanoli, Manuela Almeida Sep 2018

Development Of An Electric-Driven Smart Window Model For Visual Comfort Assessment, Michelangelo Scorpio, Giuseppina Iuliano, Antonio Rosato, Sergio Sibilio, Luigi Maffei, Giuseppe Peter Vanoli, Manuela Almeida

International Building Physics Conference 2018

Smart windows, especially those electric-driven, represent one of the most advanced technologies for controlling solar radiation. For a correct use, it is necessary to understand their real behaviour through in-situ measurements on full-scale application as well as calibrating and validating visual simulation models capable of predicting their performances. In this paper, the preliminary results of current research activities aimed at developing simulation models of electric-driven full-scale glazing are presented. The research activities started with the assessment of the visible solar transmittance as a function of light incident angle through in-situ measurements; different models, with related values, of the visible solar …


Lighting Quality Study Of Shopping Malls In China Based On The Evaluation Experiment, Rui Dang, Yanhui Bu, Qingchen Wang, Gang Liu1 Sep 2018

Lighting Quality Study Of Shopping Malls In China Based On The Evaluation Experiment, Rui Dang, Yanhui Bu, Qingchen Wang, Gang Liu1

International Building Physics Conference 2018

The lighting environment of the shopping malls will greatly influence the customer's visual comfort and product sales. This experiment studied the lighting environment of jewelry stores with the highest lighting energy consumption in shopping malls. The jewelry store scene which was built in the Key Laboratory of Building Environment Simulation had a total of 150 lighting conditions. Then, we measured lighting parameters, and subjective evaluation of lighting quality (including lighting comfort and commodities display effect) with 30 participants were carried out. We analyzed the experimental data to get the influence law of lighting parameters on lighting quality. Finally, this paper …