This document discusses the development of calibrated building energy models for real-time decision support and performance optimization. It presents a methodology for model calibration that involves developing an initial base model, conducting sensitivity analysis, manually updating the model, and using genetic optimization to further refine model parameters. A case study of applying this process to the Sanomatalo building is described. The results showed calibration improved, with NMBE of 1.39% and CVRMSE of 16.12% achieved. Future work involves applying the approach to additional sites and integrating cloud simulation with real building data for automated model performance analysis and re-calibration.
IES' Dr. Naghman Khan presentation on big data in building services from our IES Faculty event, which took place in London on 27th April, 2016. The seminar focused on the application and status of Intelligent Big Data in the fields of building services, architecture and construction.
Synthesis and Refinement of Artificial HVAC Sensor Data Intended for Supervis...IES VE
IES' David McCabe presented at the 9th International Conference Improving Energy Efficiency in Commercial Buildings and Smart Communities (IEECB&SC’16) in Frankfurt on 16th March 2016.
This presentation was in support of a paper published by IES R&D in conjunction with the EINSTEIN project. The paper can be viewed here: http://www.iesve.com/corporate/media-center/white-papers/general/hvac-afdd-jun2016.pdf
BIFM Event: Intelligent Big Data in Building Facilities & ServicesIES VE
Mark Gifford, Consultancy Development Manager at IES, presented on the application and status of Intelligent Big Data in the fields of building facilities and services at the BIFM Scotland Region half day training event.
IES Faculty - Intelligent Big Data: Opportunities for Real Estate Asset Manag...IES VE
Thomas Bouriot, of Tuffin Ferraby Taylor LLP, was a guest speaker at our IES Faculty event, that took place in London on 27th April, 2016. Thomas' presentation looks at the opportunities that big data provides for real estate asset management.
Modelling Natural Ventilation in IES-VE: Case studies & Research OutlookIES VE
Daniel Coakley of IES spoke on the topic of “Modelling Natural ventilation in the IESVE: Case studies & Research Outlook” at a half day seminar on 20th April 2016, organised by Cork Institute of Technology (CIT), for researchers, designers, engineers & architects.
IES' Dr. Naghman Khan presentation on big data in building services from our IES Faculty event, which took place in London on 27th April, 2016. The seminar focused on the application and status of Intelligent Big Data in the fields of building services, architecture and construction.
Synthesis and Refinement of Artificial HVAC Sensor Data Intended for Supervis...IES VE
IES' David McCabe presented at the 9th International Conference Improving Energy Efficiency in Commercial Buildings and Smart Communities (IEECB&SC’16) in Frankfurt on 16th March 2016.
This presentation was in support of a paper published by IES R&D in conjunction with the EINSTEIN project. The paper can be viewed here: http://www.iesve.com/corporate/media-center/white-papers/general/hvac-afdd-jun2016.pdf
BIFM Event: Intelligent Big Data in Building Facilities & ServicesIES VE
Mark Gifford, Consultancy Development Manager at IES, presented on the application and status of Intelligent Big Data in the fields of building facilities and services at the BIFM Scotland Region half day training event.
IES Faculty - Intelligent Big Data: Opportunities for Real Estate Asset Manag...IES VE
Thomas Bouriot, of Tuffin Ferraby Taylor LLP, was a guest speaker at our IES Faculty event, that took place in London on 27th April, 2016. Thomas' presentation looks at the opportunities that big data provides for real estate asset management.
Modelling Natural Ventilation in IES-VE: Case studies & Research OutlookIES VE
Daniel Coakley of IES spoke on the topic of “Modelling Natural ventilation in the IESVE: Case studies & Research Outlook” at a half day seminar on 20th April 2016, organised by Cork Institute of Technology (CIT), for researchers, designers, engineers & architects.
Jean demonstrated advanced integration of IESVE with Revit, showcasing all the import features and running through the necessary steps to build up to an energy simulation. He also covered the exchange of information parameters between the VE and Revit using import/export tools for exchanging loads data.
The latest IES Faculty event took place in London on 24th September, 2014. The seminar, which was part of World Green Building Week, focused on the issue of the Performance Gap, with our aim being to engage and work with the industry to diminish the difference between the expected and actual energy performance of buildings.
The North Texas IBPSA Chapter hosted an October meetup to discuss the new changes to the standard and how it impacts the energy modeling process.
The 2016 update of ASHRAE Standard 90.1 Energy Standard for Buildings is a major revision, containing more than 125 changes from the 2013 version. Together, Standards 90.1-2007, 90.1-2010, 90.1-2013 and 90.1-2016 produce almost 40% energy savings from the 2004 version. This slide deck is not comprehensive, but an overview of the Appendix G methodology.
Development of Calibrated Operational Models for Real-Time Decision Support a...Daniel Coakley
Presented at CIBSE Technical Symposium 2016, April 14-15, Heriot Watt Uni, Edinburgh
Full paper available here: https://www.researchgate.net/publication/301621663_Development_of_Calibrated_Operational_Models_of_Existing_Buildings_for_Real-Time_Decision_Support_and_Performance_Optimisation
Building simulation tools are commonly used in design for performance appraisal and optimisation. However, numerous studies have found that actual building performance often deviates significantly from simulation predictions. This paper proposes a detailed framework to produce calibrated operational models, which can support operational decision-making, and real-time control optimisation. The approach centres around a three-tier calibration process: Tier 1 focuses on Building-level (Demand-side) variables (e.g. occupancy, equipment, infiltration). Tier 2 focuses on system-level (HVAC) model components (e.g. heating / cooling coil capacities). In this phase, we use detailed building data combined with genetic optimisation techniques to calibrate relevant input parameters. In the case where system performance modelling is not necessary, we use free-form profiles (i.e. measured building data) to supplement these model components. Once system-level noise has been eliminated, in Tier 3 we calibrate the remaining plant-level parameters (e.g. central plant, electricity consumption, etc.). The approach is supported by two novel developments: (1) Free-form profiles: These are actual historic trends from existing building controllers, which are used to supplement model components where appropriate; (2) Genetic Optimisation algorithms are utilised to efficiently navigate the solution space to reduce discrepancies between the model and actual system performance. The proposed calibration approach builds upon prior research efforts to standardise the calibration process using evidence-based model development, combined with sensitivity and uncertainty analysis.
This presentation is from the latest installment of our popular IES Faculty BIM webinar series. The event provided an update on our BIM4Analysis strategy plus interoperability development work, helping you on your BIM journey ahead of this year’s Level 2 mandate in England and the BIM adoption strategy scheduled for 2017 in Scotland.
Asia NOC Bridges Business-wide Performance Objectives and KPIs through an Adv...Yokogawa1
Misalignment and conflicting performance objectives between management and front line operators is the root cause of a lot of profit erosion. Businesses need systematic ways to align senior management objectives and operating KPIs. This presentation will demonstrate how a National Oil Company in Asia utilized data analytics and KPI trees with drill-down capabilities to systematically align performance objectives and KPIs in its gas processing division to achieve profit driven operations. The presentation will also highlight how first principles digital twins can be incorporated to serve as a soft sensor to deliver further accuracy and rigour.
With rapid development of india’s national economy and improvement of living standards, energy issues have turned into serious social problems, restricting further development in the country. Large public buildings in india consume a great quantity of energy, and the indian government has rolled out a number of programs to retrofit them. Many retrofit technologies are readily available in india. However, there is uncertainty about technology effectiveness and which technologies work better in which climate zone. Only spotty analyses and summaries of real projects are available in literature. This report compares and analyzes these technologies in detail and provides some guidance in selecting economically effective approaches to retrofitting large public buildings. The first section sorts out some common building energysaving technologies and describes each technology with real projects. This section offers related background information for calculations later in the report.the second section summarizes energy consumption in office buildings and retail stores based on a literature survey for three major locations in india. The data includes itemized energy consumption, as well as energy use at whole-building levels. Later, building energy consumption simulation software – equest is used to simulate typical public buildings we constructed out of the literature survey. We calibrated the models, adjusted the usage schedules, and built a series of prototype models for all three geographical locations. The last section evaluates the effectiveness of each retrofit technology. Equest simulated the energy consumption with and without retrofit technologies in order to determine savings. We then added a cost analysis and calculated the typical payback period for each technology. Finally, we summarized these findings in tables so that readers can easily compare and understand how much savings and the payback period they can expect before starting a retrofit project.
Switch to Results in Commercial Buildings by Wipro EcoEnergyShreeja Sahadevan
Energy is one of the fastest growing operating costs in the Commercial Buildings space. An energy management approach by Wipro EcoEnergy, to control and streamline energy consumption has become imperative to keep the energy consumption in check.
IES' Nick Purshouse presented an overview of the NewTREND project (New integrated methodology and Tools for Retrofit design towards a next generation of Energy efficient and sustainable buildings and District) at the All Energy Conference 2016.
Jean demonstrated advanced integration of IESVE with Revit, showcasing all the import features and running through the necessary steps to build up to an energy simulation. He also covered the exchange of information parameters between the VE and Revit using import/export tools for exchanging loads data.
The latest IES Faculty event took place in London on 24th September, 2014. The seminar, which was part of World Green Building Week, focused on the issue of the Performance Gap, with our aim being to engage and work with the industry to diminish the difference between the expected and actual energy performance of buildings.
The North Texas IBPSA Chapter hosted an October meetup to discuss the new changes to the standard and how it impacts the energy modeling process.
The 2016 update of ASHRAE Standard 90.1 Energy Standard for Buildings is a major revision, containing more than 125 changes from the 2013 version. Together, Standards 90.1-2007, 90.1-2010, 90.1-2013 and 90.1-2016 produce almost 40% energy savings from the 2004 version. This slide deck is not comprehensive, but an overview of the Appendix G methodology.
Development of Calibrated Operational Models for Real-Time Decision Support a...Daniel Coakley
Presented at CIBSE Technical Symposium 2016, April 14-15, Heriot Watt Uni, Edinburgh
Full paper available here: https://www.researchgate.net/publication/301621663_Development_of_Calibrated_Operational_Models_of_Existing_Buildings_for_Real-Time_Decision_Support_and_Performance_Optimisation
Building simulation tools are commonly used in design for performance appraisal and optimisation. However, numerous studies have found that actual building performance often deviates significantly from simulation predictions. This paper proposes a detailed framework to produce calibrated operational models, which can support operational decision-making, and real-time control optimisation. The approach centres around a three-tier calibration process: Tier 1 focuses on Building-level (Demand-side) variables (e.g. occupancy, equipment, infiltration). Tier 2 focuses on system-level (HVAC) model components (e.g. heating / cooling coil capacities). In this phase, we use detailed building data combined with genetic optimisation techniques to calibrate relevant input parameters. In the case where system performance modelling is not necessary, we use free-form profiles (i.e. measured building data) to supplement these model components. Once system-level noise has been eliminated, in Tier 3 we calibrate the remaining plant-level parameters (e.g. central plant, electricity consumption, etc.). The approach is supported by two novel developments: (1) Free-form profiles: These are actual historic trends from existing building controllers, which are used to supplement model components where appropriate; (2) Genetic Optimisation algorithms are utilised to efficiently navigate the solution space to reduce discrepancies between the model and actual system performance. The proposed calibration approach builds upon prior research efforts to standardise the calibration process using evidence-based model development, combined with sensitivity and uncertainty analysis.
This presentation is from the latest installment of our popular IES Faculty BIM webinar series. The event provided an update on our BIM4Analysis strategy plus interoperability development work, helping you on your BIM journey ahead of this year’s Level 2 mandate in England and the BIM adoption strategy scheduled for 2017 in Scotland.
Asia NOC Bridges Business-wide Performance Objectives and KPIs through an Adv...Yokogawa1
Misalignment and conflicting performance objectives between management and front line operators is the root cause of a lot of profit erosion. Businesses need systematic ways to align senior management objectives and operating KPIs. This presentation will demonstrate how a National Oil Company in Asia utilized data analytics and KPI trees with drill-down capabilities to systematically align performance objectives and KPIs in its gas processing division to achieve profit driven operations. The presentation will also highlight how first principles digital twins can be incorporated to serve as a soft sensor to deliver further accuracy and rigour.
With rapid development of india’s national economy and improvement of living standards, energy issues have turned into serious social problems, restricting further development in the country. Large public buildings in india consume a great quantity of energy, and the indian government has rolled out a number of programs to retrofit them. Many retrofit technologies are readily available in india. However, there is uncertainty about technology effectiveness and which technologies work better in which climate zone. Only spotty analyses and summaries of real projects are available in literature. This report compares and analyzes these technologies in detail and provides some guidance in selecting economically effective approaches to retrofitting large public buildings. The first section sorts out some common building energysaving technologies and describes each technology with real projects. This section offers related background information for calculations later in the report.the second section summarizes energy consumption in office buildings and retail stores based on a literature survey for three major locations in india. The data includes itemized energy consumption, as well as energy use at whole-building levels. Later, building energy consumption simulation software – equest is used to simulate typical public buildings we constructed out of the literature survey. We calibrated the models, adjusted the usage schedules, and built a series of prototype models for all three geographical locations. The last section evaluates the effectiveness of each retrofit technology. Equest simulated the energy consumption with and without retrofit technologies in order to determine savings. We then added a cost analysis and calculated the typical payback period for each technology. Finally, we summarized these findings in tables so that readers can easily compare and understand how much savings and the payback period they can expect before starting a retrofit project.
Switch to Results in Commercial Buildings by Wipro EcoEnergyShreeja Sahadevan
Energy is one of the fastest growing operating costs in the Commercial Buildings space. An energy management approach by Wipro EcoEnergy, to control and streamline energy consumption has become imperative to keep the energy consumption in check.
IES' Nick Purshouse presented an overview of the NewTREND project (New integrated methodology and Tools for Retrofit design towards a next generation of Energy efficient and sustainable buildings and District) at the All Energy Conference 2016.
IES BIM Faculty - New IESVE Interoperability NavigatorIES VE
Douglas showcased the capabilities of the new IESVE Interoperability Navigator, coming soon in VE 2017. This Navigator will guide you through successful import of BIM models into the VE, allowing for the execution of essential energy and performance simulations throughout the design process.
IES BIM Faculty - Digitisation of Construction in 2017 and the role of IESVEIES VE
Niall provided an introduction and overview of Digitisation of Construction (BIM) in 2017 and looked at the importance of analysis and performance from Design through to Operation. He also presented the findings of our BIM survey.
Aplication of on line data analytics to a continuous process polybetene unitEmerson Exchange
This Emerson Exchange, 2013 presentation summarizes the 2013 field trail results achieved by applying on-line continuous data analytics to Lubrizol’s continuous polybutene process. Continuous data analytics may be used to provide an on-line prediction of quality parameters, and enable on-line detection of fault conditions. Information is provided on improvements made in the model used for quality parameter prediction, and how the field trail platform was integrated into the process unit. Presenters Qiwei Li, production engineer, Efren Hernandez and Robert Wojewodka, Lubrizol Corp., and Terry Blevins, principal technologist at Emerson, won best in conference in the process optimization track for this presentation.
A novel auto-tuning method for fractional order PID controllersISA Interchange
Fractional order PID controllers benefit from an increasing amount of interest from the research community due to their proven advantages. The classical tuning approach for these controllers is based on specifying a certain gain crossover frequency, a phase margin and a robustness to gain variations. To tune the fractional order controllers, the modulus, phase and phase slope of the process at the imposed gain crossover frequency are required. Usually these values are obtained from a mathematical model of the process, e.g. a transfer function. In the absence of such model, an auto-tuning method that is able to estimate these values is a valuable alternative. Auto-tuning methods are among the least discussed design methods for fractional order PID controllers. This paper proposes a novel approach for the auto-tuning of fractional order controllers. The method is based on a simple experiment that is able to determine the modulus, phase and phase slope of the process required in the computation of the controller parameters. The proposed design technique is simple and efficient in ensuring the robustness of the closed loop system. Several simulation examples are presented, including the control of processes exhibiting integer and fractional order dynamics.
Improving continuous process operation using data analytics delta v applicati...Emerson Exchange
Quality parameters are available through lab measurements and the final product quality changes may go undetected until a lab sample is taken. Continuous data analytics tool provided on-line prediction of quality parameters and fault detection. Field trial results from a carbon dioxide absorption/stripping process at the UT/Austin Separations Research Program will be presented in this workshop.
Heating, ventilation, and air conditioning (HVAC)[1] is the use of various technologies to control the temperature, humidity, and purity of the air in an enclosed space. Its goal is to provide thermal comfort and acceptable indoor air quality. HVAC system design is a subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer. "Refrigeration" is sometimes added to the field's abbreviation as HVAC&R or HVACR, or "ventilation" is dropped, as in HACR (as in the designation of HACR-rated circuit breakers).
Slides from the June 6, 2016, webinar on Advanced WEC Dynamics and Controls, hosted by Sandia National Laboratories for the US Department of Energy. SAND2016-5473 PE
Calibrated Modeling - How Well Does My Building Perform? by Eveline KillianCx Associates
Energy modeling during design can be valuable, but calibrated modeling post-construction tells the truth. Learn the tools available for calibrated modeling,
and how they use energy bills, digital control systems data, and metering data to assess the actual functionality of a building. Calibrated modeling completes a valuable feedback loop that can help direct future building decisions and, in
some cases, uncover additional savings opportunities in existing structures.
1. What is Energy
2. Type of Energy
3. What is Energy Audit
4. Definition of Energy Audit
5. The Need for Energy Audit
6. Why Energy Audit
7. Preliminary Energy Audit
8. Targeted Energy Audit
9. Energy Pyramid
10. Energy Costs in Indian Scenario
Decarbonising Commercial Real Estate: The Role of Operational PerformanceIES VE
Are you interested to learn how technology can help to optimise the performance of commercial buildings on the route to net-zero?
Join us to uncover how our digital twin technology can be utilised by building owners and occupiers to optimise operational building performance and improve energy efficiency before and after implementing net-zero retrofit measures.
Decarbonising Buildings: Making a net-zero built environment a realityIES VE
IES are exploring how the industry is retrofitting, renovating and building from the ground up to accelerate the transition to net-zero carbon buildings.
Retrofitting for the Built Environment - IESIES VE
Are you involved with, or are working on retrofit projects?
Don’t miss this opportunity to be at the forefront of retrofitting and decarbonisation in the UK and Ireland, by seeing how data-driven insights and advanced modelling can streamline the process.
Join us for this on-demand webinar that will revolutionise the way you approach retrofit planning. Discover cutting-edge IES software solutions designed to empower engineers to test the outcomes of retrofit interventions, whilst creating efficient and effective retrofit plans for all types of buildings and portfolios.
How Accurate are Carbon Emissions Projections?IES VE
Richard Tibenham, Business Development Manager for IES Consulting explores how variable carbon intensity modelling can help improve modelling accuracy, energy grid resilience, cost, & carbon savings.
Keep Your Finger on the Pulse of Your Building's Performance with IES LiveIES VE
Never settle for a building that uses excessive energy, costs you more, and is pulling you away from your sustainability targets. It’s time to take control, reduce energy risk, increase resilience, unlock net-zero potential, and deliver healthy and comfortable spaces.
In this on-demand launch webinar, discover how IES Live delivers the next- generation of energy, carbon and comfort performance tracking and reporting, alongside intelligent improvement insights.
IES Live has been created to put the power of better building operation in the hands of your energy and facilities teams. Understand how your building performed in the past, is currently performing, and assess against how it should be performing as simulated by an IES Digital Twin. Make decisions on where to focus attention, keep the building running optimally, and ensure any investments in net-zero deliver on expected savings.
Achieving Excellence IESVE for HVAC Simulation.pdfIES VE
This knowledge session, hosted by Richard Tibenham and Michael Pollock from IES Consulting, supported the analysis of HVAC simulation through the Virtual Environment’s ApacheHVAC application.
Utilising Energy Modelling for LCSF and PSDS Funding ApplicationsIES VE
With Phase 5 of the Low Carbon Skills Fund (LCSF) expected to open for applications in Spring 2024, Salix are now recommending energy modelling to support your application. With the application process for funding typically being complex and time consuming, it can be difficult to secure funding for both the Low Carbon Skills Fund (LCSF) and the Public Sector Decarbonisation Scheme (PSDS) in the same year.
IES, with our selected partners, have developed a fully compliant procurement route to strengthen your funding application with energy modelling, and to allow more time to complete design work in time for the next phase of the Public Sector Decarbonisation Scheme (PSDS). All costs come from a successful LCSF application.
In this on-demand session, learn more about our streamlined end-to-end process with our partners, along with the benefits of the digital twin asset and net zero pathway provided upon completion of this work.
Empowering Net-Zero: Digital Insights and Funding Opportunities for Industria...IES VE
With the much anticipated Industrial Energy Transition Fund (IETF) Phase 3 currently open for applications until 19th April, and a recent influx of funding announcements geared towards the decarbonisation of energy intensive facilities, including manufacturing sites and data centres, the time has never been better explore the technologies and funding support available to accelerate your decarbonisation action plan.
In this on-demand webinar, learn more about the technology and funding application support available from IES to deliver successful decarbonisation and energy efficiency strategies for high energy use manufacturing and industrial facilities, as well as other IETF eligible sites, such as data centres. Alongside a live technology demonstration, our expert team discussed the latest IETF Phase 3 funding guidance, and provide an overview of the various decarbonisation feasibility, energy efficiency and monitoring and verification (M&V) studies that IES can provide to support relevant funding application requirements and deliver on broader energy efficiency and decarbonisation objectives.
The Power of Heat Decarbonisation Plans in the Built EnvironmentIES VE
Don't miss this opportunity to be at the forefront of the heat decarbonisation in the UK and Ireland, by seeing how data-driven insights and advanced modelling tools can streamline the process.
In this on-demand webinar, IES will empower you to change your approach to heat decarbonisation planning, showcase our range of cutting-edge software solutions that aid in the creation of efficient and effective decarbonisation plans for heating systems across all client types.
Intelligent Net-Zero Carbon Investment Planning for Buildings and PortfoliosIES VE
In this on-demand webinar, IES and global construction company Soben, uncover how digital twin technology can be deployed by building owners and occupiers to decarbonise with intelligence. Providing the engineering and investment-grade data insights required to make the right retrofit and energy transition investment decisions across whole portfolios and individual buildings.
Common ANZ daylight / sunlight modelling approaches using IESVE.IES VE
This on-demand webinar covered some of the common Australia & New Zealand daylight / sunlight modelling approaches and how IESVE can be used to undertake these analyses.
Kubernetes & AI - Beauty and the Beast !?! @KCD Istanbul 2024Tobias Schneck
As AI technology is pushing into IT I was wondering myself, as an “infrastructure container kubernetes guy”, how get this fancy AI technology get managed from an infrastructure operational view? Is it possible to apply our lovely cloud native principals as well? What benefit’s both technologies could bring to each other?
Let me take this questions and provide you a short journey through existing deployment models and use cases for AI software. On practical examples, we discuss what cloud/on-premise strategy we may need for applying it to our own infrastructure to get it to work from an enterprise perspective. I want to give an overview about infrastructure requirements and technologies, what could be beneficial or limiting your AI use cases in an enterprise environment. An interactive Demo will give you some insides, what approaches I got already working for real.
Let's dive deeper into the world of ODC! Ricardo Alves (OutSystems) will join us to tell all about the new Data Fabric. After that, Sezen de Bruijn (OutSystems) will get into the details on how to best design a sturdy architecture within ODC.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
Neuro-symbolic is not enough, we need neuro-*semantic*Frank van Harmelen
Neuro-symbolic (NeSy) AI is on the rise. However, simply machine learning on just any symbolic structure is not sufficient to really harvest the gains of NeSy. These will only be gained when the symbolic structures have an actual semantics. I give an operational definition of semantics as “predictable inference”.
All of this illustrated with link prediction over knowledge graphs, but the argument is general.
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
Slack (or Teams) Automation for Bonterra Impact Management (fka Social Soluti...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
Interested in deploying notification automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
Development of calibrated operational models of existing buildings for real-time decision support and performance optimisation
1. Development of Calibrated Operational
Models for Real-Time Decision Support
and Performance Optimisation
Daniel Coakley BE PhD CEM MIEI MEI
Research Fellow, Integrated Environmental Solutions Ltd.
Adjunct Lecturer, National University of Ireland Galway
Secretary, ASHRAE Ireland
CIBSE Technical Symposium 2016, April 14-15, Heriot Watt Uni, Edinburgh
2. Structure
• Introduction
• Energy in Time Methodology
– Model Development, Performance Analysis & Calibration;
– Control optimisation
• Case Study: Sanomatalo
– Model development and calibration;
– Sensitivity analysis;
– Performance analysis (M&V);
– Genetic optimisation;
• Conclusions
– Calibration process summary;
– Conclusions & Future work.
4. Company Background
• Founded 1994 with HQ in
Glasgow;
• Offices worldwide;
• Focused on delivering
sustainable solutions from
building to city-scale;
• Main software:
– IES-VE (Building
simulation)
– IES-ERGON (Building
operations)
5. Energy in Time Overview
Simulation based control for Energy Efficiency
operation and maintenance
• Real building data (BMS / Sensor)
• Detailed building energy models
• Predicted profiles (Occupancy / Weather)
Calibration
• Scripting API with Models / Profiles
• Real-time prediction & control optimisation
• Operational plan generation (OPG)
Optimisation
Programme: EeB.NMP.2013-4
Project reference number: 608981
Project acronym: Energy IN TIME
Starting date: 1 October 2013
Duration: 48 Months
6. Model Calibration
Building energy models may be used in all phases of
BLC from design to commissioning and operation.
However, for operational use, there is a need to
address any discrepancies between design
performance and actual performance;
Building Model Calibration is the process of improving
the accuracy of simulation models to reflect the as-
built status and actual operating conditions;
Calibration performance assessed using standard
statistical indices:
𝑀𝐵𝐸 % = 𝑖=1
𝑁 𝑝
𝑚 𝑖 − 𝑠𝑖
𝑖=1
𝑁 𝑝
𝑚𝑖
𝐶𝑉 𝑅𝑀𝑆𝐸 % =
𝑖=1
𝑁 𝑝
𝑚 𝑖 − 𝑠𝑖
2
𝑁𝑝
𝑚
7. Prediction / Optimisation
Prediction algorithms are required in order to
determine future trends over short control time-
frames based on historic data;
Control Scenarios: Prediction profiles, in conjunction
with detailed calibrated simulation models are used to
derive building performance predictions for a range of
control scenarios;
Optimisation algorithms are used to determine the
best course of action for a given set of objectives (e.g.
Minimise cost / CO2) and constraints (ensure all zones
within comfort threshold)
9. Methodology Overview
• Three phases for project implementation:
– Stage 1: Model Development and Calibration;
– Stage 2: Model Re-calibration;
– Stage 3: Control Optimisation.
Static Model
Parameters
Model
Profiles
<FFP>
Building
Operational Data
<SCAN>
Base Model <VE>
Sensitivity
Analysis
<PB+Python>
Update Model
Performance
Criteria Met
NO
Calibrated Base
Model <VE>
YES
Re-calibrated
Operational Model
Performance
Criteria Met?
YES
Automatic re-
calibration of
Input Profile
<Optimise>
NO
Model Variant 1 Model Variant 2 Model Variant 3
Scenario Modelling
Optimal Control
DSS
Model Variant 2
• Three tiers for calibration / measurement:
10. Static Model
Parameters
Model
Profiles
<FFP>
Building
Operational Data
<SCAN>
Base Model <VE>
Sensitivity
Analysis
<Python>
Update Model
Performance
Criteria Met
NO
Calibrated Base
Model <VE>
YES
Stage 1: Model Calibration: In this phase we
develop a Base Model of our building or pilot
area, using available historic performance
data about the building (static parameters
and operational profiles). Uncertainty-
weighted sensitivity analysis is used to guide
the model update process until performance
criteria (risk/accuracy) are met. At this point,
we have a Calibrated Base Model
11. Calibrated Base
Model <VE>
Re-calibrated
Operational Model
Performance
Criteria Met?
YES
Automatic re-
calibration of
Input Profile
<Optimise>
NO
Stage 2: Model Re-calibration: As the model
will be used during building operation, it is
necessary to regularly assess performance
criteria and re-calibrate the model if
performance drift occurs. In this phase,
uncertain model profiles (e.g. occupancy,
infiltration) will be adjusted automatically
using an optimisation function. This is known
as the Calibrated Operational Model and may
be used to make reliable predictions for
ongoing building operation and control.
12. Re-calibrated
Operational Model
Model Variant 1
Stage 3: Control Optimisation: In this phase,
we introduce the concept of model variants,
which represent significant changes to the
calibrated base model (e.g. CV vs VAV). Each
model variant may be run on the Apache
cloud, under different scenarios (UGR). The
results of these model scenarios will provide
a control DSS for the building manager.
Model Variant 2 Model Variant 3
Scenario Modelling
Optimal Control
DSS
15. Sensitivity Analysis
Normalised Sensitivity Index
Parameter
Total
Energy
[MWh]
Total
System
Energy
[MWh]
Boilers
Energy
[MWh]
Chillers
Energy
[MWh]
Room Air
[C]
Overall
AAHX_latent_effectivenss 0.002 0.002 0.001 0.003 0.000 0.001
AAHX_sensible_effectivenss 0.905 0.905 0.792 0.100 0.371 0.615
air_flow 1.000 1.000 0.060 0.116 0.079 0.451
conductivity_ceiling 0.055 0.055 0.076 0.085 0.080 0.070
cool_setpoint 0.000 0.000 0.000 0.000 0.000 0.000
equipment_gain 0.103 0.039 0.204 0.141 0.120 0.121
glazing_conductivity 0.057 0.057 0.151 0.047 0.117 0.086
glazing_transmittance 0.130 0.130 0.393 1.000 0.280 0.387
infiltration 0.315 0.315 0.893 0.230 0.461 0.443
lighting_gain 0.244 0.163 0.639 0.359 0.322 0.346
occupancy_gain 0.010 0.010 0.143 0.166 0.151 0.096
radiator_max_timestep 0.001 0.001 0.000 0.001 0.000 0.001
radiator_midband 0.568 0.568 0.720 0.317 1.000 0.635
radiator_panel_weight 0.003 0.003 0.000 0.003 0.000 0.002
radiator_radiant_fraction 0.008 0.008 0.010 0.011 0.003 0.008
radiator_water_capacity 0.003 0.003 0.001 0.005 0.000 0.003
steam_humidifier_humidity 0.003 0.003 0.000 0.008 0.000 0.003
supply_temp 0.587 0.587 1.000 0.315 0.515 0.601
Sensitivity analysis was carried with respect to
parameter impact on five key model outputs:
• Total energy [MWh]
• Total System Energy [MWh]
• Boilers Energy [MWh]
• Chillers Energy [MWh]
• Room Air Temperature [oC]
16. Measured and Simulated data were compared for
the calibration period for the following output
parameters:
Heating Coil Load (kW) - Hourly
Boiler Load (kW) – Hourly
CVRMSE NMBE
Sum of Diff ^2 2821.505 Sum of Diff 81.76972
No. Samples 409 n-p 408
Mean Observation 20.805 kW Mean Observation 20.805 kW
CVRMSE 12.624 % NMBE 0.963 %
Mean Bias Error (MBE) (%)
𝑀𝐵𝐸 % =
(𝑚𝑖 − 𝑠𝑖)
𝑁 𝑝
𝑖=1
(𝑚𝑖)
𝑁 𝑝
𝑖=1
Coefficient of Variation of Root Mean Square Error CV(RMSE) (%)
𝐶𝑉 𝑅𝑀𝑆𝐸 % =
(𝑚𝑖 − 𝑠𝑖)2𝑁 𝑝
𝑖=1
𝑁𝑝
𝑚
Performance Analysis
17. Calibration – Manual Update
Based on inputs from results visualisation and
sensitivity and performance analysis, the model
calibration focused on reviewing the following
model parameters:
• Electrical metering & weather data;
• Occupancy profiles;
• Adjacent conditions;
• HVAC equipment.
21. Calibration Process Summary
Calibration Process employs a
number of techniques to improve
model calibration accuracy and
efficiency:
Structured guidance for
model development;
Standard procedures for
performance assessment;
Real ‘free-form’ building
profiles;
Sensitivity analysis;
Optimisation of static and
dynamic building parameters;
22. Conclusions
• There are many tools and methods available to aid model development and calibration – lack
of clear guidance on calibration requirements and standards;
• Hybrid method combines real building data with model physics to provide more accurate
simulation with reduced time to implementation. When used appropriately, may offer an
excellent alternative to full simulation models;
• Statistical and graphical analysis provides a means of structuring model development, and
assigning time and resources more effectively (e.g. Sensitivity, Uncertainty and Performance
analysis);
• Optimisation methods provide a robust means of refining parameter estimates. Need to be
used with caution to avoid ‘tuning’ parameters incorrectly;
• Access to a real building performance repository could help improve profile estimation and
predictions;
23. Future Work
• Complete testing of approach for four EU sites:
– Test Site 1: Airport in Faro, Portugal
– Test Site 2: Office and Test Labs in Bucharest, Romania
– Test Site 3: Commercial and Office in Helsinki, Finland
– Test Site 4: Hotel in Levi-Lapland, Finland
• Integrate cloud simulation models with real
building data streams for automated model
performance analysis and re-calibration (where
required);
• Test and deploy operational plan generator
(OPG) on pilot sites;
24. Thank you!
Daniel Coakley BE PhD CEM MIEI MEI
Research Fellow, Integrated Environmental Solutions Ltd.
Adjunct Lecturer, National University of Ireland Galway
Secretary, ASHRAE Ireland
Email: daniel.coakley@iesve.com
Web: www.iesve.com
CIBSE Technical Symposium 2016, April 14-15, Heriot Watt Uni, Edinburgh