News & Events

8 were found.




  •  NEWS   MERL makes a strong showing at the American Control Conference
    Date: July 6, 2016 - July 8, 2016
    Where: American Control Conference (ACC)
    MERL Contacts: Mouhacine Benosman; Karl Berntorp; Scott A. Bortoff; Petros T. Boufounos; Daniel J. Burns; Claus Danielson; Stefano Di Cairano; Amir-massoud Farahmand; Abraham M. Goldsmith; Piyush Grover; Uros V. Kalabic; Andrew Knyazev; Christopher R. Laughman; Daniel N. Nikovski; Arvind U. Raghunathan; Yebin Wang; Avishai Weiss
    Research Areas: Multimedia, Data Analytics, Mechatronics, Business Innovation, Advanced Control Systems, Dynamical Systems, Machine Learning, Predictive Modeling
    Brief
    • The premier American Control Conference (ACC) takes place in Boston July 6-8. This year MERL researchers will present a record 20 papers(!) at ACC, with several contributions, especially in autonomous vehicle path planning and in Model Predictive Control (MPC) theory and applications, including manufacturing machines, electric motors, satellite station keeping, and HVAC. Other important themes developed in MERL's presentations concern adaptation, learning, and optimization in control systems.
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  •  NEWS   MERL Researchers Attend Modelica North American Users Group Meeting
    Date: November 11, 2015 - November 12, 2015
    Where: University of Connecticut
    MERL Contacts: Christopher R. Laughman; Scott A. Bortoff; Hongtao Qiao
    Research Area: Data Analytics
    Brief
    • MERL Researchers Scott A. Bortoff, Chris Laughman and Hongtao Qiao attended the North America Modelica User's Group Meeting, hosted by the University of Connecticut, November 11-12, 2015. Scott Bortoff gave the Keynote Address entitled "Using Modelica in Industrial Research and Development," and Chris Laughman and Hongtao Qiao each presented a paper on modelling of HVAC systems. The Meeting attracted approximately 80 Modelica users from a diverse set of companies and universities including United Technologies, Johnson Controls and Ford. Use of Modelica is accelerating in North America, lead by largely by automotive and similar "systems manufacturing" type companies.
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  •  EVENT   MERL Researcher Leads an HVAC Industry Publicity Event
    Date: Friday, November 6, 2015
    MERL Contact: Christopher R. Laughman
    Location: Mitsubishi Electric Cooling & Heating
    Research Area: Data Analytics
    Brief
    • Chris Laughman of MERL and Kevin Miskewicz of MEUS-HVAC led a webinar on Friday, November 6 with over 20 leading HVAC industry trade publications on new products that are being released, as well as the role that MERL plays in advancing the forefront of technology within Mitsubishi Electric. Titled "Inventing the Future of VRF (and Other Neat Stuff)", they discussed the innovations embodied in the new L-generation City-Multi system, as well as trends in the HVAC industry and some recently published MERL research in the HVAC area.
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  •  NEWS   MERL researchers attend International Modelica Conference
    Date: September 21, 2015
    MERL Contacts: Scott A. Bortoff; Daniel J. Burns; Christopher R. Laughman
    Research Areas: Mechatronics, Data Analytics, Algorithms
    Brief
    • MERL researchers Scott Bortoff, Dan Burns and Chris Laughman attended the 11th Annual Modelica Conference in Versailles, France. Modelica is a computer language for modelling and simulation of multiphysical systems. There were 421 attendees, with representatives from Toyota, automobile companies, European universities and companies like Dassault. Conference topics included a plenary on cyber-physical systems modelling by Prof. Sangiovanni Vincentelli of UC Berkeley, new libraries for modelling HVAC systems, automobile systems and buildings, and research results for new solvers. An important trend is virtual modelling and simulation of building thermodynamics (scaling up to city districts), automotive systems (autonomous vehicles), and especially Factory Automation: Dassault is investing heavily in this area, focusing on smaller customers, with tools for 3D virtual modelling of assembly lines including machine dynamics (robotics), and in partnerships with Siemens and other European FA companies.
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  •  TALK   Application of Multi-scale Modeling and Approximation to Design Optimization of Heat Exchangers
    Date & Time: Wednesday, May 8, 2013; 12:00 PM
    Speaker: Vikrant Aute, University of Maryland
    MERL Host: Christopher R. Laughman
    Research Area: Data Analytics
    Brief
    • Heat exchangers are a key component in any air-conditioning, heat pumping and refrigeration system. These heat exchangers (aka evaporators, condensers, indoor units, outdoor units) not only contribute significantly to the total cost of the system but also contain the most refrigerant charge. There is a continued interest in improving the designs of heat exchangers and making them more compact while reducing the cost. Compact heat exchangers help improve system performance, reduce power consumption and lower the first costs. Due to the lower internal volume, they hold lower refrigerant charge which in turn results in lower environmental impact.

      In the simulation based design and optimization of compact heat exchangers, there are two main challenges. The first challenge arises from the use of computationally expensive analysis tools such as Computational Fluid Dynamics (CFD). The second challenge is the effect of scales. The use of CFD tools can make the optimization infeasible due to computing and engineering resource limitations. Furthermore, during CFD analysis, certain simplifications are made to the computational domain such as simulating a small periodic segment of a given heat transfer surface. In this talk, three technologies are introduced that assist in addressing these issues. These technologies are (1) Approximation Assisted Optimization, (2) Parallel Parameterized CFD, and (3) Multi-scale modeling of heat exchangers. These technologies together help reduce the computational effort by more than 90% and engineering time by more than 50%. Two real world applications focusing on air-to-refrigerant and liquid-to-refrigerant heat exchangers will be discussed, that demonstrate the application of these technologies.
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  •  NEWS   International Refrigeration and Air conditioning Conference at Purdue 2012: 2 publications by Daniel J. Burns, Daniel N. Nikovski, Christopher R. Laughman and Yiming Zhao
    Date: July 16, 2012
    Where: International Refrigeration and Air conditioning Conference at Purdue
    MERL Contacts: Christopher R. Laughman; Daniel J. Burns; Daniel N. Nikovski
    Research Areas: Mechatronics, Data Analytics, Advanced Control Systems
    Brief
    • The papers "Fast Refrigerant Property Calculations Using Interpolation-Based Methods" by Laughman, C.R., Zhao, Y. and Nikovski, D. and "Extremum Seeking Control for Energy Optimization of Vapor Compression Systems" by Burns, D.J. and Laughman, C. were presented at the International Refrigeration and Air conditioning Conference at Purdue
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  •  NEWS   PEMD 2010: publication by Christopher R. Laughman and others
    Date: April 19, 2010
    Where: International Conference Power Electronics, Machines and Drives (PEMD)
    MERL Contact: Christopher R. Laughman
    Research Areas: Data Analytics, Predictive Modeling
    Brief
    • The paper "A Park Transform-Based Method for Condition Monitoring of Three-Phase Electromechanical Systems" by Laughman, C.R., Leeb, S.B., Norford, L.K., Shaw, S.R. and Armstrong, P.R. was presented at the International Conference Power Electronics, Machines and Drives (PEMD)
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  •  NEWS   ECCE 2009: publication by Christopher R. Laughman and others
    Date: September 20, 2009
    Where: IEEE Energy Conversion Congress and Exposition (ECCE)
    MERL Contact: Christopher R. Laughman
    Research Areas: Data Analytics
    Brief
    • The paper "A Two-Step Method for Estimating the Parameters of Induction Machine Models" by Laughman, C.R., Leeb, S.B., Norford, L.K., Shaw, S.R. and Armstrong, P.R. was presented at the IEEE Energy Conversion Congress and Exposition (ECCE)
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