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Symposiums

The Present and Future of Indoor Air Quality & Ventilation Research-KICT/IAQRC
Organizer:Yun Gyu Lee (IAQRC, Korea)
MOCCIE2: MOdelling Consortium for the Chemistry of Indoor Environments 2
Organizer: Nicola Carslaw (University of York, UK)

This session will provide an overview of the MOdeling Consortium for Chemistry of Indoor Environments 2 program, MOCCIE2. MOCCIE2 is part of the Chemistry of Indoor Environments (CIE) program funded by the Alfred P. Sloan Foundation and involves eight groups, 7 based in the US and 1 in the UK. The session will comprise of presentations by 6 of the groups and will present the latest findings from this project to the wider community. This project builds on an earlier grant where we focused on ways to form links between the models from the 6 original groups in MOCCIE, with themes around cleaning and skin oil emissions. MOCCIE2 builds on these strong foundations with new topics such as emissions from cooking, surface film chemistry and insight from using models to investigate the recent HOMEChem Campaign in Austin, Texas.

  1. 1.Modeling Indoor Surface Chemistry Using Kinetic Multilayer Models (Manabu Shiraiwa)
  2. 2.The influence of clothing on ozone-skin chemistry: modeling ICHEAR (Glenn Morrison)
  3. 3.Modeling the buildup of SVOCs on impervious indoor surfaces (John Little)
  4. 4.How does indoor air chemistry affect outdoor air pollution? (Nicola Carslaw)
  5. 5.Predicting indoor aerosol water content and phase state: Impacts of region, season, and mechanical system operation (Michael Waring)
  6. 6.Computational fluid dynamics (CFD) modeling of chemical processes in indoor environments (Donghyun Rim)
Chemical Emissions and Observations in the Indoor Environment
Organizers: Delphine Farmer (Colorado State University, USA)
Organizers: Brent Williams (Washington University in St. Louis, USA)

This workshop will discuss chemical measurements in the indoor environment, with a particular emphasis on understanding the emissions sources in the indoor environment and their subsequent chemical transformations through field observations. These sources of trace gases and particles can include metabolic emissions from humans, infiltration from the outdoor atmosphere, microbial activity, building surfaces, and consumer products.

  1. 1.TBD (Joost De Gouw)
  2. 2.Progress in Understanding the Organic Composition of Residential Air (William Nazaroff)
  3. 3.TBD (Pawel Misztal)
  4. 4.TBD (Emer Duffy)
  5. 5.The Kitchen Sink: Investigating the sources and fate of organic aerosol in homes (Delphine Farmer)
  6. 6.TBD (Gabriel Bekö)
Chemical Transformations and Laboratory Studies in the Indoor Environment
Organizers: Delphine Farmer (Colorado State University, USA)
Organizers: Brent Williams (Washington University in St. Louis, USA)

Molecules in the indoor environment undergo an array of chemical reactions, including oxidation and photolysis in the gas phase, hydrolysis and aqueous reactions, and partitioning between the air, particles and surfaces. This symposium will discuss the chemical transformations of gases, particles, and surfaces in the indoor environment, including the results from both field and laboratory experiments. Speakers will cover a diverse range of topics including the partitioning equilibria in the indoor environment, the potential for oxidation chemistry indoors, and the microbial sources of volatile organic compounds.

  1. 1.TBD (Jonathan Abbatt)
  2. 2.TBD (Do Young Maeng)
  3. 3.TBD (Brent Williams)
  4. 4.TBD (Phil Stevens)
  5. 5.TBD (Peter DeCarlo)
  6. 6.TBD (Cora Young)
Halving particulate in Seoul Metro
Organizer: Soonchang Yoon (Seoul National University, Korea)

1. Introduction of GPF
2. Introduction of Seoul Global Challenge
3. Introduction of Seoul Metro in Particulates Reduction
4. Introduction of Research Corps on Subway Particulates Reduction
5. Talk Concert

Advancing exposure assessment of air pollutants for environmental risk management
Organizer: Wonho Yang (Daegu Catholic University, Korea)

Exposure assessment remains a major weakness in Environmental Health Science. Due to the financial and logistical cost of personal monitoring, most epidemiologic studies have relied on surrogate estimates of exposure, usually assigned to the home location of study participants. The errors in these exposure assignments can bias attempts to assess the adverse health effects of environmental stressors toward the null. This session will provide a commentary on the impact that ubiquitous and participatory sensing will have on exposure assessment in Environmental Health. We will build on a developed framework and review novel developments in sensing that will lead to more precision in exposure assessment than has been possible in the past. Ubiquitous and participatory sensing offer tremendous promise for improved exposure assessment and increased confidence in the results of health effects assessments in Environmental Health research. Protection of personal privacy, analysis of the voluminous data generated by the sensors, and integration with other emerging methods from molecular epidemiology represent critical areas for research and development. The following subjects will be presented;

  1. 1.Advancement of Exposure Assessment and Construction of Surveillance System Using Air quality of Indoor and Outdoor Environments (Wonho Yang)
  2. 2.Application of Exposure Modeling Methods for Air Pollution Epidemiological Studies (Michael Breen)
  3. 3.Improving the understanding of air pollution exposure and health risk using high resolution data from sensor network (Seung-Hyun Cho)
  4. 4.Advance in exposure assessment in smart cities - fusing observation and numerical models to provide real-time personalized exposure assessments (Alexis K H LAU)
  5. 5.New Approaches for Exposure Assessment of Fine Particulate Matter (Hyeong-Moo Shin)
Modified Predicted Mean Vote (PMV)
Organizer: John Zhang Lin (City University of Hong Kong, Hong Kong, China)

Much energy is used in providing indoor comfort for occupants. People spend most of their time indoors. Therefore, the indoor environment plays an important role in shaping our health and well-being. However, we still routinely measure high thermal dissatisfaction from occupants. The thermal comfort models used for designing buildings have low prediction accuracy.
On the other hand, thermal adaptation as the feedbacks of occupants to physical stimuli, extend occupants’ thermal comfort zone, thereby reducing building energy consumption for providing a thermally comfortable indoor environment. Both adaptive Predicted Mean Vote (aPMV) model and extended Predicted Mean Vote (ePMV) model are promising adaptive thermal comfort models, which employ a coefficient to represent the feedback effects of thermal adaptations on thermal comfort. However, thermal adaptation is a dynamic process. Should the variable adaptive coefficient(s) be adopted to represent the dynamic process of thermal adaptations? Can the variable adaptive coefficient(s) be determined?

  1. 1.Introduction to personal comfort models (Stefano Schiavon)
  2. 2.Quantifying occupant expectations when predicting thermal comfort (Jørn Toftum)
  3. 3.A theoretical adaptive model of thermal comfort – Adaptive Predicted Mean Vote (aPMV) (Runming Yao)
  4. 4.A novel SET-based adaptive thermal comfort model (Yingxin Zhu)
  5. 5.Adaptive rational thermal comfort model: adaptive or extended predicted mean vote (aPMV or ePMV)? (John Zhang Lin)
Combustion sources of indoor environment and their control strategy
Organizers: Shun-cheng Lee (The Hong Kong Polytechnic University, Hong Kong, China)
Organizers: Ki-Hyun Kim (Hanyang University, Korea)

Indoor combustion sources, including natural-gas-powered cooking, smoking, coal combustion for cooking and heating, produce large amounts of both gas and particle phase pollutants. These pollutants, identified to be carbon monoxide, nitrogen dioxide, volatile organic compounds and particulate matters, are leading causes in reducing human life span and various respiratory diseases, especially among women and children. This symposium aims to provide an insight into indoor combustion sources and their control strategies based on up-to-date technologies in this field. As such, it can serve as a ommunication platform for scholars in related field. This platform can further promote the collaborative research between academia and industry. Additionally, both Profs. Lee and Kim were awarded Highly Cited Researcher by Clarivate Analytics. Their academic influence will make contributions to the conference in various respects.
In this symposium, 5 specialists from indoor combustion field were invited to introduce the sources, pollution characterizations, human health effects of indoor combustion and their implications for eliminating indoor air pollutions. And 30 fully registered audiences will be brought to this symposium to increase peer communication.

  1. 1.Indoor Air Emissions from Different Cooking Sources (Shun-cheng Lee)
  2. 2.Indoor coal smoke and lung cancer in Xuan Wei, China (Linwei Tian)
  3. 3.Reducing the impact on indoor air quality by eliminating indoor combustion sources (Markus Nordlund)
  4. 4.Effect of NH3 on the Formation of Indoor Secondary Pollutants from Ozone/Monoterpenes Reactions (Yu Huang)
  5. 5.Predominance of hydrophilic Amino interfaces to Enhance Carbonyls Removal Selectivity in Indoor Air: Unveiling Amine-functionalized Catalysis under Ambient Conditions (Haiwei Li)
  6. 6.Advanced Interface Between Material Engineering and Indoor Air Quality Control (Ki-Hyun Kim)
  7. 7.Ambient PM2.5, Polycyclic Aromatic Hydrocarbons and Biomass Burning Tracer in Mae Sot District, Western Thailand (Siwatt Pongpiachan)
  8. 8.Human Chemical Signature — investigating the influence of human presence and selected activities on concentrations of airborne constituents (Catherine Goujon Ginglinger)
Indoor Air Modelling and (Quantitative Microbial) Risk Assessment – What’s Missing and Where Do We Need to Go Next?
Organizer: Marco-Felipe King (University of Leeds, UK)

The field of indoor air modelling is in constant evolution, often with computational fluid dynamic predictions firmly a mainstay of infection risk modelling, however coupling with tangible and quantitative microbial risk assessment (QMRA) models is still tenuous. There is an imperious need for a mutual understanding between groups who model disease spread by linking infection with the air and subsequent surface contamination and those who use infection risk models in QMRA. We propose a symposium to attempt to join these together in the following way.
Aims are two-fold: 1) To assess the direction of techniques in both fields to identify novelty in airflow/surface contamination predictions with particular focus on risk and defining areas in need of validation 2) to engage in an interactive debate with the audience on what is the road to take for the future, in science and in industry with special emphasis on accuracy, level of detail required, and computational or experimental demand.

  1. 1.Calculating quanta: understanding infectious dose generation from airborne infection outbreaks (Cath J. Noakes)
  2. 2.Indoor Infection Modelling via Fomite Routes Based on High-Resolution Datasets (Yuguo Li / Nan Zhang)
  3. 3.Defining “Clean” in Indoor Environments with a QMRA Risk-Based Approach: The Need for Multi-route Exposure Assessment (Amanda Wilson)
  4. 4.Modelling the Fate Of Bioaerosols in Hospital Single and Multi-Bed Rooms (Marco-Felipe King)
  5. 5.Interpreting Microorganism Exposure Data for Risk Assessment (Rachel M. Jones)
New standards for safety of fine and ultra-fine ambient particles.
Organizer: Mark Ereth (Mayo Clinic College of Medicine, USA)

Background: Fine and ultra-fine particulate matter is the real culprit with infections and inflammatory disease related to indoor and outdoor air pollution. PM 0.1 and PM 0.4 should be measured, studied, and reported.
Scientific Purpose: To examine the current data on PM 0.1 and PM 0.4 and evise or develop guidelines for future studies of the safe levels and disease impact of these the smallest of particles on individual and population health.
Content of the Session: Examine current literature and critique methodologies. Examine PM 0.1 and PM 0.4 sources of data, published works, and current regulations. Device guidelines for future studies and to serve as a basis for regulatory and interventional impact.

  1. 1.What are we missing with PM 2.5 ? (Mark Ereth)
  2. 2.The smallest are the deadliest: PM 0.1 and PM 0.4 (Clayton Cowl)
  3. 3.How to mitigate PM 0.1 and PM 0.4: Condition, Control, and Capture (Don Hess)
  4. 4.Small Particles Hurt Small Patients (Abigail Driscoll)
  5. 5.Development of new standards, future studies, and ideal interventions (Mark Ereth)
Effect of indoor environment on work performance
Organizers: Zhiwei Lian (Shanghai Jiao Tong University, China)
Organizers: Shin-ichi Tanabe (Waseda University, Japan)

The indoor environments should enhance occupant’s health, comfort and productivity as people spend around 90% of their lives indoors. However, energy policy goals in many countries are often focused only on the implementation of measurable energy savings in buildings without taking into account the consequences for building users. This has been changed as some Energy Directive requires that the energy in buildings should be reduced without compromising the indoor environmental quality. Still, however, it is not clear yet the effects of indoor environment in terms of both health and decreases in productivity due to the lack of coherent approach. Therefore it is difficult to persuade clients to accept the concept of a relationship between indoor environmental quality and economic productivity benefits. How to assess the effects of indoor environmental quality on productivity remains to be the major challenge. This is that this proposal aims at.

  1. 1.Activity based working (ABW) and workplace productivity (Shin-ichi Tanabe)
  2. 2.Comprehensive effects of multi environmental parameters on work performance (Zhiwei Lian)
  3. 3.Students’ thermal comfort and its impact on learning (Shichao Liu)
  4. 4.Cognitive performance and thermal responses in high temperature: A new relation model (Weiwei Liu)
  5. 5.Present challenges regarding research on indoor environmental quality and work performance (Pawel Wargocki)
Challenges in ventilation for the operating theatres of the future (modelling, sensing & control): Making the invisible visible
Organizers: Guangyu Cao (Norwegian University of Science & Technology, Norway)
Organizers: Amirul Khan (University of Leeds, UK)

Ventilation and airflow are crucial in operating rooms (OR) for controlling thermo-hygrometric conditions, providing gas removal, dilution of airborne contaminants and minimising the airborne transfer of pathogens (bacteria). In order to maintain a safe and comfortable environment for patients and staff all of these considerations must be met, and each of them has specific requirements. Therefore, for these requirements to be met efficiently, design engineers and operators must rely on various analysis (computational, analytical) and control methods (model-based) that provide the most reliable and detailed information as possible. In this symposium we aim to bring together experts with complementary expertise in the field of indoor environment modelling (computational fluid dynamics), sensing and control applied to the operating-theatre environment. The symposium will enable cross-disciplinary interaction and group thinking to address some of the challenges of the OR of the future by reviewing existing approaches and proposing new methods. The chosen presentations will enable researchers to engage with various complementary topics providing (1) with improved understanding of the local influence of airflows on particles close to occupants, (2) improved quantification of the transient behaviour of the OR indoor environment (ORIE) including the fate of contaminants due to healthcare activities, (3) introduce to the methods of augmenting computer simulation with measured sensor data to enable a deeper understanding of the ORIE and thereby paving the way for a robust, adaptive and energy-efficient ventilation control system for the OR.

  1. 1.Introduction and overview of the challenges in the ventilation of the operating theatre of the future. (Guangyu Cao / Amirul Khan)
  2. 2.Room airflow distribution and mass transfer within surgical incision microenvironment in operating rooms (Ingeborg Kvammen)
  3. 3.Impact of the surgical lamp design on the airflow and airborne contamination distribution in an operating room (Parastoo Sadeghian)
  4. 4.Wireless Sensor Network (WSN) Based Data Assimilation In Indoor Environments For Accurate Lattice Boltzmann Real-Time Indoor Air-Quality Prediction (N. Salman)
  5. 5.Indoor Air Quality Forecast based on the Lattice Boltzmann method and 3D-Var Data Assimilation (Amirul Khan)
Kitchen Ventilation Requirements for High Performance Homes
Organizer: Brett C. Singer (Lawrence Berkeley National Laboratory, USA)

Air pollutants emitted by cooking burners and produced by many cooking activities can reach levels in homes that exceed health hazard guidelines and standards. Excess moisture from cooking and burners can contribute to dampness and mold problems. As awareness of these hazards grows, there is increasing attention to the importance of effective kitchen ventilation to reduce exposures and risk. Existing codes and standards – such as the requirements of the ASHRAE 62.2 ventilation standard – may not provide sufficient protection based on non-use or low capture efficiency. And as homes become tighter for energy efficiency, new performance standards and tests will be needed. This symposium will bring together research and development efforts in the US and China to identify suitable performance requirements and test methods for next generation kitchen ventilation.

  1. 1.Performance evaluation of adsorption materials on VOCs in cooking oil fume and influence on indoor environment (Junjie Liu)
  2. 2.Analysis to Inform a Range Hood Capture Efficiency Standard for California New Homes (Sangeetha Kumar)
  3. 3.Effect of local makeup air on indoor environment in typical high-performance Chinese residential kitchen (Jiankai Dong)
  4. 4.Method of oil fume escape volume estimation based on S-PIV (JIahua Wang)
  5. 5.Laboratory evaluation of a smart range hood for residential applications (Brett C. Singer)
Understanding of IEQ Factor Interactions-Current Status and Research Needs
Organizer: Bjarne W. Olesen (IEQ-GA (Indoor Environmental Quality-Global Alliance) / DTU, Denmark)

In the design and energy performance prediction of buildings and HVAC systems, it is important to use established requirements for Indoor Environmental Quality parameters. The indoor environmental factors are Thermal Comfort, Indoor Air Quality (IAQ, ventilation), Lighting and Acoustic.
Two international standards (ISO 17772 and EN 16798-1) deal with requirements for all four indoor environmental factors. The requirements, however, do not take into account any interactions between the parameters.
ASHRAE Guideline 10 “Interactions Affecting the Achievement of Acceptable Indoor Environments” does give some guidance related to such interactions, although, studies to date of interactions between Thermal, Visual, Aural and Olfactory influences on perception are not conclusive. Knowledge of the relative importance of the four factors on the dissatisfaction of people is very limited and there is a need for further research.
This symposium will focus on the existing state knowledge regarding interactions, primarily as they affect perception of indoor environmental quality and will give examples of interactions between all four indoor environmental parameters. Knowledge gaps and research needs will be discussed.

  1. 1.Understanding of IEQ factor interactions (Bjarne W. Olesen)
  2. 2.ASHRAE Guideline 10-2011 - “Interactions Affecting the Achievement of Acceptable Indoor Environments” (William P. Bahnfleth)
  3. 3.The need for research on the combined effects of negative and positive stress factors in buildings on people with individual needs and preferences. (Philomena Bluyssen)
  4. 4.Interactions between thermal comfort and lighting (Jørn Toftum)
IEA-EBC Annex 78: Substituting Ventilation by Gas Phase Air Cleaning
Organizer: Bjarne W. Olesen (Intl. Centre for Indoor Environment and Energy, Technical University of Denmark, Denmark)

Worldwide, there is an increasing number of publications related to air cleaning and there is an increasing sale of gas phase air cleaning products. This puts a demand for verifying the influence of using air cleaning on indoor air quality, comfort, well-being and health. It is thus important to learn whether air cleaning can supplement ventilation with respect to improving air quality i.e. whether it can partly substitute the ventilation rates required by standards. There is also a need to evaluate the energy impact of using air cleaning as supplement to ventilation.
In many locations in the world, the outdoor air quality is so bad that it is better to avoid supplying outdoor air to the buildings. In such cases, the alternative to use ventilation is to substitute supply of outdoor air with air cleaning. Even when outdoor air is of a good quality, the use of air cleaning substituting ventilation air could reduce the rate of outdoor air supplied indoors. Therefore, it is possible to save energy for pre-heating/cooling the ventilation air and for transporting the air (fan energy).
To verify the performance of gas phase air cleaning technologies there is a need to develop appropriate standard test methods.
This is some of the issues that is part of a new IEA-EBC Annex 78 and which will be covered by presentations and discussion in this session.

  1. 1.Introduction to IEA-EBC Annex 78 Substituting Ventilation by Gas Phase Air Cleaning (Bjarne W. Olesen)
  2. 2.Energy benefits using gas phase air cleaning (Alireza Afshari)
  3. 3.Description of gas phase Air Cleaning Technologies (Jinhan Mo)
  4. 4.Long term validation of gas phase air cleaning technologies (Jingjing Pei)
  5. 5.Performance modelling of gas phase air cleaning technologies: (Jianshun Zhang)
Occupant-centric building design and operation
Organizer: Andreas Wagner (Karlsruhe Institute of Technology, Germany)

Numerous studies identified the strong influence of occupants on building performance. This is exactly the focus of IEA EBC Annex 79, which intends to implement occupant behavior into the design process and building operation to improve both energy performance and occupant comfort. The main objectives of the Annex are:
developing new knowledge about adaptive occupant actions driven by multiple indoor environmental parameters;
understanding interactions between occupants and building systems in terms of comfort and building energy use;
deploying ‘big data’ for the building sector based on various sources of building and occupant data as well as sensing technologies;
developing methods and guidelines as well as giving advice for standards integrating occupant models in building design and operation;
performing focused case studies to test the new methods and models in different design and operation phases.
The symposium will introduce into the different fields of research of the Annex.

  1. 1.Objectives and research fields of the IEA EBC Annex 79 (Andreas Wagner)
  2. 2.On potential and challenges of model-based support for occupant-centric building design and operation (Ardeshir Mahdavi)
  3. 3.Occupant centered building control: A case study from Texas (Hagen Fritz)
  4. 4.Data collection and improving methods for ground truth annotation – example of data collection through mobile position in San Antonio (Bing Dong)
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