Hongtao Qiao

Hongtao Qiao
  • Biography

    Prior to his PhD, Hongtao worked at Carrier Corporation developing advanced steady-state computer simulations for HVAC systems. During his PhD, he developed a comprehensive transient modeling framework for thermo-fluid systems to explore complex dynamic characteristics of vapor compression cycles. Currently, Hongtao works on the control-oriented multi-physical system modeling.

  • Internships with Hongtao

    • MS1769: Data-driven Dynamic Modeling of Vapor Compression Systems

      MERL is seeking a highly motivated and qualified individual to conduct research in dynamic modeling and simulation of vapor compression systems in the summer of 2022. Knowledge of data-driven modeling techniques is required. Experience in working with thermo-fluid systems is preferred. The intern is expected to collaborate with MERL researchers to build models, develop algorithms, and prepare manuscripts for scientific publications. Senior Ph.D. students in applied mathematics, chemical/mechanical engineering and other related areas are encouraged to apply. The expected duration of the internship is 3 months and the start date is flexible.

    See All Internships at MERL
  • MERL Publications

    •  Chakrabarty, A., Maddalena, E., Qiao, H., Laughman, C.R., "Scalable Bayesian Optimization for Model Calibration: Case Study on Coupled Building and HVAC Dynamics", Energy and Buildings, DOI: 10.1016/​j.enbuild.2021.111460, Vol. 253, pp. 111460, March 2022.
      BibTeX TR2022-030 PDF
      • @article{Chakrabarty2022mar,
      • author = {Chakrabarty, Ankush and Maddalena, Emilio and Qiao, Hongtao and Laughman, Christopher R.},
      • title = {Scalable Bayesian Optimization for Model Calibration: Case Study on Coupled Building and HVAC Dynamics},
      • journal = {Energy and Buildings},
      • year = 2022,
      • volume = 253,
      • pages = 111460,
      • month = mar,
      • doi = {10.1016/j.enbuild.2021.111460},
      • url = {https://www.merl.com/publications/TR2022-030}
      • }
    •  Chakrabarty, A., Maddalena, E., Qiao, H., Laughman, C.R., "Scalable Bayesian Optimization for Parameter Estimation of Coupled Building and HVAC Dynamics", Energy and Buildings, DOI: 10.1016/​j.enbuild.2021.111460, Vol. 253, pp. 111460, March 2022.
      BibTeX TR2022-030 PDF
      • @article{Chakrabarty2022mar2,
      • author = {Chakrabarty, Ankush and Maddalena, Emilio and Qiao, Hongtao and Laughman, Christopher R.},
      • title = {Scalable Bayesian Optimization for Parameter Estimation of Coupled Building and HVAC Dynamics},
      • journal = {Energy and Buildings},
      • year = 2022,
      • volume = 253,
      • pages = 111460,
      • month = mar,
      • doi = {10.1016/j.enbuild.2021.111460},
      • url = {https://www.merl.com/publications/TR2022-030}
      • }
    •  Li, S., Qiao, H., "Development of a fast fluid dynamics model based on PISO algorithm for simulating indoor airflow", ASME - Summer Heat Transfer Conference, DOI: HT2021-63909, September 2021.
      BibTeX TR2021-120 PDF
      • @inproceedings{Li2021sep,
      • author = {Li, Sibo and Qiao, Hongtao},
      • title = {Development of a fast fluid dynamics model based on PISO algorithm for simulating indoor airflow},
      • booktitle = {ASME - Summer Heat Transfer Conference},
      • year = 2021,
      • month = sep,
      • doi = {HT2021-63909},
      • url = {https://www.merl.com/publications/TR2021-120}
      • }
    •  Leonard, E., Qiao, H., Nabi, S., "A Comparison of Interpolation Methods in Fast Fluid Dynamics", International High Performance Buildings Conference, September 2021.
      BibTeX TR2021-118 PDF
      • @inproceedings{Leonard2021sep,
      • author = {Leonard, Eric and Qiao, Hongtao and Nabi, Saleh},
      • title = {A Comparison of Interpolation Methods in Fast Fluid Dynamics},
      • booktitle = {International High Performance Buildings Conference},
      • year = 2021,
      • month = sep,
      • url = {https://www.merl.com/publications/TR2021-118}
      • }
    •  Chakrabarty, A., Maddalena, E., Qiao, H., Laughman, C.R., "Data-driven calibration of physics-informed models of joint building/equipment dynamics using Bayesian optimization", 2021 Building Simulation Conference, September 2021.
      BibTeX TR2021-105 PDF Video
      • @inproceedings{Chakrabarty2021sep,
      • author = {Chakrabarty, Ankush and Maddalena, Emilio and Qiao, Hongtao and Laughman, Christopher R.},
      • title = {Data-driven calibration of physics-informed models of joint building/equipment dynamics using Bayesian optimization},
      • booktitle = {2021 Building Simulation Conference},
      • year = 2021,
      • month = sep,
      • url = {https://www.merl.com/publications/TR2021-105}
      • }
    See All Publications for Hongtao
  • Other Publications

    •  P. Li, Y. Li, J. Seem, H. Qiao, X. Li and J. Winkler, "Recent Advances in Dynamic Modeling of HVAC Equipment -- Part II: Modelica-based Modeling", HVAC&R Research, Vol. 20, No. 1, pp. 150-161, 2014.
      BibTeX External
      • @Article{Li2014HVACR,
      • author = {Li, P. and Li, Y. and Seem, J. and Qiao, H. and Li, X. and Winkler, J.},
      • title = {Recent Advances in Dynamic Modeling of HVAC Equipment -- Part II: Modelica-based Modeling},
      • journal = {HVAC\&R Research},
      • year = 2014,
      • volume = 20,
      • number = 1,
      • pages = {150--161},
      • url = {http://www.tandfonline.com/doi/full/10.1080/10789669.2013.836876}
      • }
    •  P. Li, H. Qiao, Y. Li, J. Seem, J. Winkler and X. Li, "Recent Advances in Dynamic Modeling of HVAC Equipment -- Part I: Equipment Modeling", HVAC&R Research, Vol. 20, No. 1, pp. 136-149, 2014.
      BibTeX External
      • @Article{Li2014HVACRa,
      • author = {Li, P. and Qiao, H. and Li, Y. and Seem, J. and Winkler, J. and Li, X.},
      • title = {Recent Advances in Dynamic Modeling of HVAC Equipment -- Part I: Equipment Modeling},
      • journal = {HVAC\&R Research},
      • year = 2014,
      • volume = 20,
      • number = 1,
      • pages = {136--149},
      • url = {http://www.tandfonline.com/doi/full/10.1080/10789669.2013.836877}
      • }
    •  J. Ling, A. Alabdulkarem, H. Qiao, V. Aute and R Radermacher, "Modelica-based Heat Pump Model for Transient and Steady-state Simulation Using Low-GWP Refrigerants", 15th International Refrigeration and Air-Conditioning Conference at Purdue, July 2014.
      BibTeX External
      • @Inproceedings{Ling2014IRACC,
      • author = {Ling, J. and Alabdulkarem, A. and Qiao, H. and Aute, V. and Radermacher, R},
      • title = {Modelica-based Heat Pump Model for Transient and Steady-state Simulation Using Low-GWP Refrigerants},
      • booktitle = {15th International Refrigeration and Air-Conditioning Conference at Purdue},
      • year = 2014,
      • month = jul,
      • url = {https://www.conftool.com/2014Purdue/}
      • }
    •  H. Qiao, L. Kwon, V. Aute and R. Radermacher, "Transient Modeling of a Multi-Evaporator Air Conditioning System and Control Method Investigation", 11th IEA Heat Pump Conference, May 2014.
      BibTeX External
      • @Inproceedings{Qiao2014HPC,
      • author = {Qiao, H. and Kwon, L. and Aute, V. and Radermacher, R.},
      • title = {Transient Modeling of a Multi-Evaporator Air Conditioning System and Control Method Investigation},
      • booktitle = {11th IEA Heat Pump Conference},
      • year = 2014,
      • month = may,
      • url = {http://www.iea-hpc2014.org/conference-poster-program.php}
      • }
    •  H. Qiao, X. Xu, V. Aute and R. Radermacher, "Transient Modeling of a Flash Tank Vapor Injection Heat Pump System - Part II: Simulation Results and Experimental Validation", International Journal of Refrigeration, 2014.
      BibTeX External
      • @Article{Qiao2014IJR,
      • author = {Qiao, H. and Xu, X. and Aute, V. and Radermacher, R.},
      • title = {Transient Modeling of a Flash Tank Vapor Injection Heat Pump System - Part II: Simulation Results and Experimental Validation},
      • journal = {International Journal of Refrigeration},
      • year = 2014,
      • url = {http://www.sciencedirect.com/science/article/pii/S0140700714001819}
      • }
    •  H. Qiao, V. Aute and R. Radermacher, "Transient Modeling of a Flash Tank Vapor Injection Heat Pump System - Part I: Model Development", International Journal of Refrigeration, 2014.
      BibTeX External
      • @Article{Qiao2014IJRa,
      • author = {Qiao, H. and Aute, V. and Radermacher, R.},
      • title = {Transient Modeling of a Flash Tank Vapor Injection Heat Pump System - Part I: Model Development},
      • journal = {International Journal of Refrigeration},
      • year = 2014,
      • url = {http://www.sciencedirect.com/science/article/pii/S0140700714001820}
      • }
    •  H. Qiao, V. Aute and R. Radermacher, "A New Dynamic Heat Exchanger Model with Frosting and Defrosting", 15th International Refrigeration and Air-Conditioning Conference at Purdue, July 2014.
      BibTeX External
      • @Inproceedings{Qiao2014IRACC,
      • author = {Qiao, H. and Aute, V. and Radermacher, R.},
      • title = {A New Dynamic Heat Exchanger Model with Frosting and Defrosting},
      • booktitle = {15th International Refrigeration and Air-Conditioning Conference at Purdue},
      • year = 2014,
      • month = jul,
      • url = {https://www.conftool.com/2014Purdue/}
      • }
    •  H. Qiao, V. Aute and R. Radermacher, "An Improved Moving Boundary Heat Exchanger Model with Pressure Drop", 15th International Refrigeration and Air-Conditioning Conference at Purdue, July 2014.
      BibTeX External
      • @Inproceedings{Qiao2014IRACCa,
      • author = {Qiao, H. and Aute, V. and Radermacher, R.},
      • title = {An Improved Moving Boundary Heat Exchanger Model with Pressure Drop},
      • booktitle = {15th International Refrigeration and Air-Conditioning Conference at Purdue},
      • year = 2014,
      • month = jul,
      • url = {https://www.conftool.com/2014Purdue/}
      • }
    •  J. Ling, M. Eisele, H. Qiao, V. Aute, Y. Hwang and Radermacher R., "Transient Modeling and Validation of an Automotive Secondary Loop Air-conditioning System", SAE Technical Paper 2014-01-0647, 2014.
      BibTeX External
      • @Article{Qiao2014TR,
      • author = {Ling, J. and Eisele, M. and Qiao, H. and Aute, V. and Hwang, Y. and R., Radermacher},
      • title = {Transient Modeling and Validation of an Automotive Secondary Loop Air-conditioning System},
      • journal = {SAE Technical Paper 2014-01-0647},
      • year = 2014,
      • url = {http://papers.sae.org/2014-01-0647/}
      • }
    •  H. Qiao, V. Aute, H. Lee, K. Saleh and R. Radermacher, "A New Model for Plate Heat Exchanger with Generalized Flow Configurations and Phase Change", International Journal of Refrigeration, Vol. 36, No. 2, pp. 622-632, 2013.
      BibTeX External
      • @Article{Qiao2013IJR,
      • author = {Qiao, H. and Aute, V. and Lee, H. and Saleh, K. and Radermacher, R.},
      • title = {A New Model for Plate Heat Exchanger with Generalized Flow Configurations and Phase Change},
      • journal = {International Journal of Refrigeration},
      • year = 2013,
      • volume = 36,
      • number = 2,
      • pages = {622--632},
      • url = {http://www.sciencedirect.com/science/article/pii/S0140700712003283}
      • }
    •  H. Qiao, V. Aute, H. Lee and R. Radermacher, "A New Model for Plate Heat Exchangers with Generalized Configurations and Phase Change", 10th IIR-Gustav Lorentzen Conference on Natural Working Fluid, June 2012, vol. 1, pp. 127-136.
      BibTeX External
      • @Inproceedings{Qiao2012IIR,
      • author = {Qiao, H. and Aute, V. and Lee, H. and Radermacher, R.},
      • title = {A New Model for Plate Heat Exchangers with Generalized Configurations and Phase Change},
      • booktitle = {10th IIR-Gustav Lorentzen Conference on Natural Working Fluid},
      • year = 2012,
      • volume = 1,
      • pages = {127--136},
      • month = jun,
      • url = {http://toc.proceedings.com/15739webtoc.pdf}
      • }
    •  H. Qiao, V. Aute and R. Radermacher, "Comparison of Equation-based and Non-equation-based Approaches for Transient Modeling of a Vapor Compression Cycle", 14th International Refrigeration and Air-Conditioning Conference at Purdue, July 2012.
      BibTeX External
      • @Inproceedings{Qiao2012IRACC,
      • author = {Qiao, H. and Aute, V. and Radermacher, R.},
      • title = {Comparison of Equation-based and Non-equation-based Approaches for Transient Modeling of a Vapor Compression Cycle},
      • booktitle = {14th International Refrigeration and Air-Conditioning Conference at Purdue},
      • year = 2012,
      • month = jul,
      • url = {http://docs.lib.purdue.edu/iracc/1205/}
      • }
    •  H. Qiao, X. Xu, V. Aute and R. Radermacher, "Modelica-based Transient Modeling for a Flash Tank Vapor Injection System and Experimental Validation", 14th International Refrigeration and Air-Conditioning Conference at Purdue, July 2012.
      BibTeX External
      • @Inproceedings{Qiao2012IRACCa,
      • author = {Qiao, H. and Xu, X. and Aute, V. and Radermacher, R.},
      • title = {Modelica-based Transient Modeling for a Flash Tank Vapor Injection System and Experimental Validation},
      • booktitle = {14th International Refrigeration and Air-Conditioning Conference at Purdue},
      • year = 2012,
      • month = jul,
      • url = {http://docs.lib.purdue.edu/iracc/1202/}
      • }
    •  H. Qiao, V. Singh, V. Aute and R. Radermacher, "Optimization of Fin Density for Plate Fin Heat Exchanger", 13th International Refrigeration and Air-Conditioning Conference at Purdue, July 2010.
      BibTeX External
      • @Inproceedings{Qiao2010IRACC,
      • author = {Qiao, H. and Singh, V. and Aute, V. and Radermacher, R.},
      • title = {Optimization of Fin Density for Plate Fin Heat Exchanger},
      • booktitle = {13th International Refrigeration and Air-Conditioning Conference at Purdue},
      • year = 2010,
      • month = jul,
      • url = {https://www.conftool.com/2012Purdue/}
      • }
    •  H. Qiao, R. Radermacher and V. Aute, "A Review for Numeric Simulation of Vapor Compression Systems", 13th International Refrigeration and Air-Conditioning Conference at Purdue, July 2010.
      BibTeX External
      • @Inproceedings{Qiao2010IRACCa,
      • author = {Qiao, H. and Radermacher, R. and Aute, V.},
      • title = {A Review for Numeric Simulation of Vapor Compression Systems},
      • booktitle = {13th International Refrigeration and Air-Conditioning Conference at Purdue},
      • year = 2010,
      • month = jul,
      • url = {http://docs.lib.purdue.edu/iracc/1090/}
      • }
    •  G. Ding, H. Qiao and Z. Lu, "Ways to Improve Thermal Uniformity inside a Refrigerator", Applied Thermal Engineering, Vol. 24, No. 13, pp. 1827-1840, 2004.
      BibTeX External
      • @Article{Ding2004ATE,
      • author = {Ding, G. and Qiao, H. and Lu, Z.},
      • title = {Ways to Improve Thermal Uniformity inside a Refrigerator},
      • journal = {Applied Thermal Engineering},
      • year = 2004,
      • volume = 24,
      • number = 13,
      • pages = {1827--1840},
      • url = {http://www.sciencedirect.com/science/article/pii/S1359431104000092}
      • }
  • Videos

  • MERL Issued Patents

    • Title: "System and Method for Controlling an Operation of Heating, Ventilating, and Air-Conditioning (HVAC) Systems"
      Inventors: Nabi, Saleh; Qiao, Hongtao; Grover, Piyush
      Patent No.: 11,162,701
      Issue Date: Nov 2, 2021
    • Title: "System and Method for Power Optimizing Control of Multi-Zone Heat Pumps"
      Inventors: Bortoff, Scott A.; Burns, Dan J; Laughman, Christopher; Qiao, Hongtao
      Patent No.: 10,895,412
      Issue Date: Jan 19, 2021
    • Title: "System and Method for Controlling Refrigerant in Vapor Compression System"
      Inventors: Laughman, Christopher; Qiao, Hongtao; Burns, Dan J; Bortoff, Scott A.
      Patent No.: 10,830,515
      Issue Date: Nov 10, 2020
    • Title: "Coordinated Operation of Multiple Space-Conditioning Systems"
      Inventors: Laughman, Christopher; Qiao, Hongtao; Burns, Dan J; Bortoff, Scott A.
      Patent No.: 10,234,158
      Issue Date: Mar 19, 2019
    See All Patents for MERL