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- Thermal comfort (8)
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- BIM (3)
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Articles 181 - 210 of 255
Full-Text Articles in Engineering Physics
Aerogel-Enhanced Blankets: State-Of-The-Art, Market Readiness, And Future Challenges, Umberto Berardi, Syed (Mark) Zaidi, Bryan Kovisto
Aerogel-Enhanced Blankets: State-Of-The-Art, Market Readiness, And Future Challenges, Umberto Berardi, Syed (Mark) Zaidi, Bryan Kovisto
International Building Physics Conference 2018
Aerogel-enhanced products are often indicated as promising materials for increasing the thermal resistance of the building envelope. In particular, aerogel-enhanced blankets have already showed their effectiveness in several retrofitting projects. This paper aims to review the current state of the art regarding aerogel-enhanced blankets. In these materials, a fiber matrix bonds together the aerogel structure, compensating the low mechanical properties of the aerogels without reducing their exceptionally low thermal conductivity. This paper describes current aerogel-enhanced blankets existing worldwide and produced by different companies. Then, a new aerogel-enhanced blanket developed by the authors is presented. Thermal characterization tests confirm the superior …
Effect Of Air Pressure On Moisture Transfer Inside Porous Building Materials Three-Dimensional Behavior Of Moisture And Air, Kazuma Fukui, Chiemi Iba, Shuichi Hokoi, Daisuke Ogura
Effect Of Air Pressure On Moisture Transfer Inside Porous Building Materials Three-Dimensional Behavior Of Moisture And Air, Kazuma Fukui, Chiemi Iba, Shuichi Hokoi, Daisuke Ogura
International Building Physics Conference 2018
The effect of air pressure on moisture transfer inside porous building materials cannot be ignored in cases in which air cannot escape through the surfaces of the materials; in such cases, the air is compressed by the movement of the moisture. Therefore, in a situation in which most surfaces of a specimen are sealed or treated with surface-protecting materials (a situation that is often encountered in typical water-absorption tests), the experimental results may differ from those without sealed or treated surfaces. In the present study, the influence of air pressure on moisture transfer was investigated quantitatively. First, the following water-absorption …
Experimental Analysis Of Micro-Cracks On The Change Of Moisture Transport Properties Of Aac, Jiří Maděra, Jan Kočí, Václav Kočí, Miloš Jerman, Magdaléna Doleželová
Experimental Analysis Of Micro-Cracks On The Change Of Moisture Transport Properties Of Aac, Jiří Maděra, Jan Kočí, Václav Kočí, Miloš Jerman, Magdaléna Doleželová
International Building Physics Conference 2018
In this paper, series of experiment measurements is carried out in order to study effect of freeze/thaw loading on the change of moisture transport properties of autoclaved aerated concrete. The samples were subjected to 15, 30 and 45 freeze/thaw cycles and subsequently basic physical properties, pore size distribution and water vapor and liquid water transport properties were investigated. The results showed significant changes in material properties of the material. The results of this research can be further implemented into computational models in order to bring the simulation results closer to the reality.
Measurements Of Temperature Dependency On Thermal Insulation Thickness In Ventilated Attics, Thor Hansen, Eva B. Moeller
Measurements Of Temperature Dependency On Thermal Insulation Thickness In Ventilated Attics, Thor Hansen, Eva B. Moeller
International Building Physics Conference 2018
The main objective of this paper is by measurements to investigate whether increased thermal insulation thickness reduces the temperature in ventilated attics. With lower heat flux through the ceiling in the winter, the theory is that the temperature in the attic decreases and consequently the relative humidity increases which may cause mold growth. While some simulations support this theory, others do not. To test the theory in practice, measurements were performed in 29 dwellings, mainly older single family houses with ventilated attics and insulation thicknesses varying between 150 and 600 mm (6“ and 23“). The temperature was measured for more …
Novel Gas-Driven Fuel Cell Hvac And Dehumidification Prototype, Daniel Betts, Moonis R. Ally, Vishaldeep Sharma, Matthew Tilghman, Matthew Graham, Shyam Mudiraj
Novel Gas-Driven Fuel Cell Hvac And Dehumidification Prototype, Daniel Betts, Moonis R. Ally, Vishaldeep Sharma, Matthew Tilghman, Matthew Graham, Shyam Mudiraj
International Building Physics Conference 2018
Performance of a novel gas-driven, electricity-producing heating, ventilation, and air conditioning (HVAC) system with no vapor compression and no hydrofluorocarbon (HFC) refrigerant shall be discussed in the paper. The prototype was evaluated at ORNL under a Small Business Voucher (SBV) Cooperative Research and Development (CRADA) program. The target market is commercial buildings in the United States. The goal is to mitigate or eliminate grid-power for building air conditioning, coincident peak demand and associated spinning reserves, aiding in flattening of the “duck curve”. The technical goal is to transform the common packaged rooftop unit into a cost-effective distributed energy resource, opening …
Multi-Stage Optimal Design Of Energy Systems For Urban Districts, Georgios Mavromatidis, Kristina Orehounig, Jan Carmeliet
Multi-Stage Optimal Design Of Energy Systems For Urban Districts, Georgios Mavromatidis, Kristina Orehounig, Jan Carmeliet
International Building Physics Conference 2018
Urban districts develop in a dynamic manner over multi-year horizons with new buildings being added and changes being made to existing buildings (e.g. retrofits). Nevertheless, optimization models used to design urban district energy systems (DES) commonly consider a single, “typical” year for the design. This practice, however, does not allow for energy design decisions to be made in multiple phases in order to reflect a district’s development phases. This paper addresses this issue and presents a novel optimization model that allows the multi-stage optimal design of urban DES. The model identifies the cost-optimal technology investment decisions across a horizon that …
Classification Of The Indoor Environment In A High-School Building By Means Of Subjective Responses, Lorenza Pistore, Ilaria Pittana, Francesca Cappelletti, Andrea Gasparella, Piercarlo Romagnoni
Classification Of The Indoor Environment In A High-School Building By Means Of Subjective Responses, Lorenza Pistore, Ilaria Pittana, Francesca Cappelletti, Andrea Gasparella, Piercarlo Romagnoni
International Building Physics Conference 2018
In this paper the subjective evaluation of the indoor environment of a secondary school in Treviso (Italy) is presented. Field campaigns have been carried out during the winter season in order to assess people overall satisfaction about the environment, their behavior towards discomfort and their interactions with the building and the systems. A specific questionnaire has been elaborated, paying particular attention to the occupants target and to the questions needed to grasp not only the comfort feedbacks, but also the dynamics and the individual students’ attitudes that can influence the building energy performance. A first general evaluation has been elaborated …
Optimization Of Electric Vehicle Charging In A Fully (Nearly) Electric Campus Energy System, Jacques A. De Chalendar, Jason H. Frost, Sally M. Benson
Optimization Of Electric Vehicle Charging In A Fully (Nearly) Electric Campus Energy System, Jacques A. De Chalendar, Jason H. Frost, Sally M. Benson
International Building Physics Conference 2018
The goal of this work is to build a set of computational tools to aid decision making for the modelling and operations of integrated urban energy systems that actively interact with the power grid of the future. District heating and cooling networks incorporating heat recovery and large-scale thermal storage, such as the Stanford campus system, dramatically reduce energy waste and greenhouse gas emissions. They have historically played a small, but important role at a local level. Here we explore the potential for other co-benefits, including the provision of load following services to the electrical grid, carbon emissions reductions or demand …
Indoor Air Quality And Thermal Comfort For Elderly Residents In Houston Tx—A Case Study, Amir Baniassadi, David J. Sailor, Cassandra R. Olenick
Indoor Air Quality And Thermal Comfort For Elderly Residents In Houston Tx—A Case Study, Amir Baniassadi, David J. Sailor, Cassandra R. Olenick
International Building Physics Conference 2018
The elderly population is more vulnerable to poor indoor environmental quality. They also spend a larger portion of their time indoors than the general public, further exacerbating the associated health risks. As part of a larger study which aims to understand the health risks for the elderly population resulting from extreme heat events in Houston, TX, this study gathered empirical data on thermal comfort and air quality in existing assisted living facilities and in individual homes of the elderly. We made continuous measurements of indoor dry-bulb temperature, relative humidity, carbon dioxide (CO2) levels and occupancy status in 25 buildings during …
Method For Detecting Contaminant Transport Through Leakages In A Condemned School, Fredrik Domhagen, Paula Wahlgren, Carl-Eric Hagentoft
Method For Detecting Contaminant Transport Through Leakages In A Condemned School, Fredrik Domhagen, Paula Wahlgren, Carl-Eric Hagentoft
International Building Physics Conference 2018
Many schools in Sweden, have problems with the indoor air, affecting the wellbeing and health of both pupil and teachers. Contaminants in the air, such as mold spores, radon, odors, and VOC, cause problems and it can be difficult to find the contaminant source, in particular if it is within the building construction. The aim of this project is to investigate air leakage paths and pressure differences in a school building with IAQ problems and to analyze how these parameters are related to contaminant transport. An increased knowledge of how contaminants are transported will then form the base for an …
Empirical Assessment Of Summertime Overheating Risk In New, Retrofitted And Existing Uk Dwellings, Rajat Gupta, Matt Gregg, Robert Irving
Empirical Assessment Of Summertime Overheating Risk In New, Retrofitted And Existing Uk Dwellings, Rajat Gupta, Matt Gregg, Robert Irving
International Building Physics Conference 2018
This paper statistically assesses the hourly internal summertime temperature datasets gathered during the summer of 2013 (May to September), from 63 dwellings across the UK. The sample consisted of unmodified dwellings (existing); dwellings with varying levels of fabric improvements (retrofitted) and dwellings constructed to higher levels of the Code for Sustainable Homes (new). Indoor and outdoor temperature data from bedrooms and living rooms from these homes were collected at five-minute intervals using temperature sensors. These data were processed and analysed for summertime overheating, using both static criteria (CIBSE Guide A) and the criteria associated with the EN15251 adaptive thermal comfort …
Lighting Simulation For External Venetian Blinds Based On Btdf And Hdr Sky Luminance Monitoring, Yujie Wu, Je´RˆOme Henri Ka¨Mpf, Jean-Louis Scartezzini
Lighting Simulation For External Venetian Blinds Based On Btdf And Hdr Sky Luminance Monitoring, Yujie Wu, Je´RˆOme Henri Ka¨Mpf, Jean-Louis Scartezzini
International Building Physics Conference 2018
The precise daylighting simulation in buildings can potentially contribute to designers’ and occupants’ smart utilization of it. The traditional method of employing sky models was indicated with noticeable errors in transient lighting simulation for complex fenestration systems (CFS), due to the mismatch between the real sky and standard sky models. This paper evaluates the performance of a calibrated embedded photometric device based on sky luminance monitoring, capable of real-time on-board lighting computing. Daylighting experiments for external Venetian blinds (EVB) were conducted in a lighting test module to demonstrate its accuracy in the simulation of horizontal work-plane illuminance. The BTDF of …
Modelling Of A Naturally Ventilated Bipv System For Building Energy Simulations, Juliana Gonçalves, Glenn Reynders, Jonathan Lehmann, Dirk Saelens
Modelling Of A Naturally Ventilated Bipv System For Building Energy Simulations, Juliana Gonçalves, Glenn Reynders, Jonathan Lehmann, Dirk Saelens
International Building Physics Conference 2018
Two major causes of energy yield reduction in PV systems are partial shading and high operating temperatures. Both issues are particularly critical for BIPV systems. The correct assessment of the BIPV contribution to the built environment depends, therefore, on the accurate prediction of PV temperature and on the possibility of simulating shading effects. This paper describes the development of a multi-physics model for a naturally ventilated façade BIPV system within the openIDEAS environment for building and district energy simulations. The PV electrical model used here follows a physics-based approach that takes into account solar intensity and temperature spatial variations within …
Numerical Analysis Of The Influencing Factors On The Performance Of A Pipe-Embedded Window Operated In Summer, Sihang Jiang, Chong Shen, Xianting Li
Numerical Analysis Of The Influencing Factors On The Performance Of A Pipe-Embedded Window Operated In Summer, Sihang Jiang, Chong Shen, Xianting Li
International Building Physics Conference 2018
The pipe-embedded window is a double window structure with pipes embedded inside the cavity to adjust the temperature. The preliminary studies showed that it can significantly reduce the cooling load of buildings with natural cooling sources such as the water from cooling towers in summer. However, the research on the influencing factors of the pipeembedded window is insufficient. In this paper, the numerical calculation models are established for a pipe-embedded window and a traditional window. The influence of climatic factors, such as the natural cooling source temperature and outdoor air temperature on the thermal performance of the pipe-embedded window are …
Hygrothermal Analysis Of A Vapour-Open Assembly With Vacuum Insulation Panels, Brock Conley, Cynthia Ann Cruickshank, Mark Carver
Hygrothermal Analysis Of A Vapour-Open Assembly With Vacuum Insulation Panels, Brock Conley, Cynthia Ann Cruickshank, Mark Carver
International Building Physics Conference 2018
The following paper studies the year-long moisture conditions associated with vacuum insulation as the exterior insulation. The exterior insulation of one assembly was renovated by using 50.8 mm (2 inch) of expanded polystyrene (EPS) and represents the baseline performance of current common practice. Another assembly was built with 20 mm (0.7 inch) vacuum insulation panels encased in the equivalent thickness of EPS to represent a high RSI-value retrofit. The thermal performance was evaluated using a guarded hot box facility at Carleton University and the in-situ Building Envelope Test Hut at CanmetENERGY-Ottawa. The temperature, humidity and moisture content in the sheathing …
A Review Of Microgrid Energy Systems, Lei Gao, Yunho Hwang, Reinhard Radermacher
A Review Of Microgrid Energy Systems, Lei Gao, Yunho Hwang, Reinhard Radermacher
International Building Physics Conference 2018
Microgrid combined cooling, heating and power energy systems are under intensive investigation owing to expansion of renewable energy generation and development of advanced technologies in distributed energy generation. Multi-generation systems serve as one of the core parts in any microgrid energy systems. This review paper presents the summary of state-of-the-art technologies in these multi-generation systems. The first part introduces the energy structure based on energy sources and the latest renewable energy harvesting technologies for solar, biomass and geothermal energy. In the second part, prime movers, including small-scale ones used in a microgrid energy system, are summarized. The third part shows …
Comparison Between Qualitative And Quantitative Measurement In Assessing Thermal Comfort In An Elementary School, Boyu Li, Ming Hu, Greg Goldstein
Comparison Between Qualitative And Quantitative Measurement In Assessing Thermal Comfort In An Elementary School, Boyu Li, Ming Hu, Greg Goldstein
International Building Physics Conference 2018
We compare qualitative and quantitative measurements to assess an elementary school building’s thermal comfort. Quantitative measurements of the physical environment are useful but not sufficient, since different people respond differently in the same indoor environment. A qualitative survey of the school employees shows the thermal comfort level has a 3.73 out of 7 score and 40% of subjects rated it unsatisfactory, even though the temperature and humidity level are measured within the comfort range recommended by ASHERA 90.1 – 2004. This gap occurs because human metabolism is not taken into account in current design guidelines, even though there is a …
Comparison Of Daylighting Simulation Workflows And Results Using Plugins For Bim And 3d Modeling Programs: Application On Early Phases Of Design Process, Marina Da Silva Garcia, Maíra Louise Martins De Freitas, Roberta Vieira Gonçalves De Souza, Ana Carolina De Oliveira Veloso
Comparison Of Daylighting Simulation Workflows And Results Using Plugins For Bim And 3d Modeling Programs: Application On Early Phases Of Design Process, Marina Da Silva Garcia, Maíra Louise Martins De Freitas, Roberta Vieira Gonçalves De Souza, Ana Carolina De Oliveira Veloso
International Building Physics Conference 2018
The present paper investigated the application of the daylighting analysis features of the Insight BIM plugin, comparatively to DIVA, a plugin for a 3D Nurbs modeling software. Considering the early phases of the design process, workflows, simulation results and processing times were analyzed, focusing on the prediction of static (illuminance level) and dynamic (sDA300,50%) metrics. Simulations on both tools were performed in the context of analyzing the daylight behavior in a deep office room model, with and without light shelves. Results indicate that Insight has limitations compared to DIVA, especially concerning input data configuration flexibility. Simulation results presented significant similarity …
Prediction Of The Long-Term Performance Of Vacuum Insulation Panel Installed In Real Building Environments, Hideya Yamamoto, Daisuke Ogura
Prediction Of The Long-Term Performance Of Vacuum Insulation Panel Installed In Real Building Environments, Hideya Yamamoto, Daisuke Ogura
International Building Physics Conference 2018
Vacuum insulation panels (VIPs) are high-performance insulating materials constructed by covering a core and adsorbent with an envelope and evacuating the air from the inside. VIPs have used to enhance the energy efficiency of devices including refrigerators, vending machines, and cooler boxes. In order to apply VIPs as heat-insulation materials in buildings and houses, it is necessary to predict the long-term performance of the VIPs and verify the accuracy of the prediction using actual measurements. VIPs using glass fiber as a core material are spreading in Japan, and VIPs using glass fiber core material as the core is also likely …
Super Insulation Material In District Heating Pipes, Bijan Adl-Zarrabi
Super Insulation Material In District Heating Pipes, Bijan Adl-Zarrabi
International Building Physics Conference 2018
In Swedish district heating systems, 10% of the produced energy is lost at the distribution network. It is of interest to lower the energy losses both for economic and environmental reasons. Since 2011 the feasibility of using superinsulation material for insulation of the district heating pipes were studied. Apparent thermal conductivity and long term performance of vacuum panels has been identified has the crucial challenge for using vacuum insulation panels. The estimated life time of a vacuum panel in building applications at 90 °C is about 50 years. The life time estimation is based on the climate condition valid for …
Super Insulation Materials In The Building Sector: Field Studies And Future Challenges, Pär Johansson, Bijan Adl-Zarrabi
Super Insulation Materials In The Building Sector: Field Studies And Future Challenges, Pär Johansson, Bijan Adl-Zarrabi
International Building Physics Conference 2018
The global rate of improvement in energy efficiency have to be increased to reach the UN sustainable development goals by 2030. Super insulation materials (SIM) can maintain the same thermal transmittance with a thinner insulation layer compared to conventional insulation materials. Recommendations and experiences from practical applications are needed to raise the knowledge and awareness of using SIM in buildings. Evidences related to real-condition performance need to be presented and independently assessed. The aim of this paper is to describe the state-of-the-art in the area of SIM in building applications based on monitoring data related to long-term performance of vacuum …
Evaluation Of The Impact Of Phase Change Humidity Control Material On Energy Performance Of Office Buildings, Zhimin Wu, Menghao Qin, Mingjie Zhang
Evaluation Of The Impact Of Phase Change Humidity Control Material On Energy Performance Of Office Buildings, Zhimin Wu, Menghao Qin, Mingjie Zhang
International Building Physics Conference 2018
Phase change humidity control material (PCHCM) is a new kind of composite made of high performance PCM microcapsules and diatomite. The PCHCM composite can moderate the hygrothermal variations by absorbing or releasing both heat and moisture and significantly reduce the peak/valley values of indoor temperature and relative humidity. In this paper, a novel model is developed to evaluate the energy performance of office buildings with PCHCM. The model is validated by a series of experiments, and then applied to investigate the effect of PCHCM on energy consumption in different typical climates worldwide (i.e. Beijing, Paris, Atlanta, and Guangzhou). Results show …
Psychrometer Method To Measure The Moisture Retention Curves Of Porous Building Materials In The Full Humidity Range, Chi Feng, Maria Fredriksson, Hans Janssen
Psychrometer Method To Measure The Moisture Retention Curves Of Porous Building Materials In The Full Humidity Range, Chi Feng, Maria Fredriksson, Hans Janssen
International Building Physics Conference 2018
Moisture retention curves describe the moisture storage property of porous building materials. Currently available experimental methods for measuring moisture retention curves are often demanding in equipment and moreover not always suited for the adsorption process in most of the capillary moisture content range. This paper proposes a novel and simple technique – the psychrometer method – and validates it by the tests on calcium silicate and ceramic brick. In this experiment the moisture content of the samples experiencing adsorption and desorption processes is determined gravimetrically, while the corresponding capillary pressures in the samples are measured with a chilled-mirror dew-point psychrometer. …
Semi-Permeable Membrane Experiment For Unsaturated Liquid Permeability Of Building Materials: Potential And Practice, Chi Feng, Hans Janssen
Semi-Permeable Membrane Experiment For Unsaturated Liquid Permeability Of Building Materials: Potential And Practice, Chi Feng, Hans Janssen
International Building Physics Conference 2018
The unsaturated liquid permeability is a crucial hygric property of porous building materials. Its direct measurement is very challenging however, because currently available experimental protocols are either demanding in test facilities, complicated in data processing, or limited in moisture content range. Inspired by the osmosis phenomenon, we study the possibility to apply semi-permeable membranes for directly measuring the liquid permeability of porous building materials. The key principle is studied profoundly and a simple experimental set-up is constructed. Trial tests on calcium silicate insulation and autoclaved aerated concrete are performed. Results show that the experimental set-up can be used to measure …
Evaluating The Energy Consumption And Heat Loss In The Hot Water Supply And Heating Systems Of A Nursing Home, Kana Inamoto, Chiemi Iba, Shuichi Hokoi, Daisuke Ogura, Satoru Takada
Evaluating The Energy Consumption And Heat Loss In The Hot Water Supply And Heating Systems Of A Nursing Home, Kana Inamoto, Chiemi Iba, Shuichi Hokoi, Daisuke Ogura, Satoru Takada
International Building Physics Conference 2018
The demand for nursing homes has increased recently due to an increase in the aging population in Japan. Nursing homes are generally equipped with hot water supply and heating systems for bathing, preparing meals, and heating rooms. This equipment utilizes a considerable amount of energy. Few studies have measured heat loss from the hot water supply and heating systems in such facilities. This study evaluated the hot water supply and heating systems of a nursing home located in a cold climate area in Japan. The temperature and flow rate of the hot water were continuously measured, and the energy consumption …
The Energy Saving Performance Of Heat Recovery Ventilation System In Residential Buildings In The Summer Of Hot-Summer And Cold-Winter Zone In China, Siyuan Cheng, Yao Ma, Menghao Qin
The Energy Saving Performance Of Heat Recovery Ventilation System In Residential Buildings In The Summer Of Hot-Summer And Cold-Winter Zone In China, Siyuan Cheng, Yao Ma, Menghao Qin
International Building Physics Conference 2018
The rapid increase in space cooling and heating demand in recent years in the hot-summer and cold-winter (HSCW) zone in China (the most developed area in China) requires technology to be as efficient as possible, consuming the lowest amount of energy necessary. Heat recovery ventilation (HRV) system can meet this demand by lowering the building energy demand by pre-heating or pre-cooling. However, the climate in HSCW zone is humid and rainy all the year round, which may affect the energy performance of HRV system. The current research focuses on field measurements of the performance of HRV system in a test …
Impacts Of Climate Change And Its Uncertainties On The Renewable Energy Generation And Energy Demand In Urban Areas, Vahid M. Nik, Yuchen Yang, Bijan Adl-Zarrabi
Impacts Of Climate Change And Its Uncertainties On The Renewable Energy Generation And Energy Demand In Urban Areas, Vahid M. Nik, Yuchen Yang, Bijan Adl-Zarrabi
International Building Physics Conference 2018
This work investigates the effects of future climate uncertainties in calculating the heating and cooling demand of buildings and estimating potentials for renewable energy generation (solar PV and wind). The building stock of Lund in Sweden is considered for energy simulations and for future climate, the most recent outputs of RCA4, which is the 4th generation of the Rossby Centre regional climate model (RCM), is used considering several two representative concentration pathways (RCPs) and four global climate models (GCMs). Simulations and assessment are performed for three 30-year time periods, from 2010 until 2099. Through comparing distributions of data sets, it …
The Impact Of Physical Environments In Satisfaction In Shopping Centers, Rui Dang, Lai Wei, Ye Yuan, Gang Liu
The Impact Of Physical Environments In Satisfaction In Shopping Centers, Rui Dang, Lai Wei, Ye Yuan, Gang Liu
International Building Physics Conference 2018
Lighting, thermal and acoustic are three main components of indoor physical environments affecting people’s satisfaction, productivity and health. Good physical environments in shopping centers not only improve the environment atmosphere but also increase the customers’ satisfaction. This study aims to find correlations between the physical environments and the satisfaction levels. Firstly, an objective measurement of physical environments had been carried out in four shopping centers. Then, a subjective evaluation was carried out in a real scene laboratory by changing four kinds of illuminance and three types of Correlated Color Temperatures (CCTs), which aims to find the relationship between the lighting …
Existing Energy Performance And The Potential Of Simulation In School Buildings – A Review, Ming Hu
Existing Energy Performance And The Potential Of Simulation In School Buildings – A Review, Ming Hu
International Building Physics Conference 2018
The objective of this paper is to present finding of existing building performance assessment for educational buildings and related energy simulation tools with a focus on K-12 buildings. First, the paper examines the current status of energy performance in educational buildings and existing simulation tools used in building energy retrofit. Then, the paper summarizes the obstacles to conducting energy simulation for school buildings, gaps and weaknesses in existing tools will be summarized, and potential opportunities for a comprehensive tool will be outlined. Last, the paper identifies the particular needs of educational buildings, and a set of criteria and requirements for …
Validation Of The En 15193:2017 Calculation Method To Estimate The Daylight Supply In A Building: Comparison With Dynamic Climate-Based Simulations, Valerio Roberto Maria Lo Verso, Argun Paragamyan, Anna Pellegrino
Validation Of The En 15193:2017 Calculation Method To Estimate The Daylight Supply In A Building: Comparison With Dynamic Climate-Based Simulations, Valerio Roberto Maria Lo Verso, Argun Paragamyan, Anna Pellegrino
International Building Physics Conference 2018
This paper compares a simplified method to calculate the daylight factor and the annual daylight contribution in a space to the output of dynamic daylighting simulations. The simplified calculation method is the one implemented in the European Standard EN 15193 for the calculation of the energy demand for lighting in buildings, while the tool for dynamic simulations is Daysim (managed through DIVA-for-Rhino). The analysis was carried out by applying the two approaches to a reference office room, which was assumed to be located in different sites and having different window areas, with different orientations, both in the absence and in …