Hongtao Qiao

Phone: 617-621-7586
Email:

Position:
Research / Technical Staff

Senior Principal Research Scientist
Education:
Ph.D., University of Maryland, 2014
Research Areas:
External Links:
- Google Scholar

Hongtao's Quick Links

Biography
MERL Publications
Other Publications
Videos
MERL Issued Patents

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.
MERL Publications
- Bortoff, S.A., Laughman, C.R., Deshpande, V.M., Qiao, H., "Fluid Property Functions in Polar and Parabolic Coordinates", American Modelica Conference, October 2024.
  BibTeX TR2024-144 PDF
  - @inproceedings{Bortoff2024oct,
  - author = {Bortoff, Scott A. and Laughman, Christopher R. and Deshpande, Vedang M. and Qiao, Hongtao},
  - title = {{Fluid Property Functions in Polar and Parabolic Coordinates}},
  - booktitle = {American Modelica Conference},
  - year = 2024,
  - month = oct,
  - url = {https://www.merl.com/publications/TR2024-144}
  - }
- Park, S., Wang, Y., Qiao, H., Sakamoto, Y., Wang, B., Liu, D., "Control Co-Design for Electric Vehicles with Driving Cycle Synthesis Encoding Road Traffic and Driver Characteristics", IEEE Conference on Control Technology and Applications (CCTA) 2024, DOI: 10.1109/CCTA60707.2024.10666575, August 2024.
  BibTeX TR2024-114 PDF
  - @inproceedings{Park2024aug,
  - author = {Park, Seho and Wang, Yebin and Qiao, Hongtao and Sakamoto, Yusuke and Wang, Bingnan and Liu, Dehong},
  - title = {{Control Co-Design for Electric Vehicles with Driving Cycle Synthesis Encoding Road Traffic and Driver Characteristics}},
  - booktitle = {IEEE Conference on Control Technology and Applications (CCTA) 2024},
  - year = 2024,
  - month = aug,
  - doi = {10.1109/CCTA60707.2024.10666575},
  - url = {https://www.merl.com/publications/TR2024-114}
  - }
- Bortoff, S.A., Qiao, H., Laughman, C.R., "Modeling and Control of a Multi-Mode Heat Pump", IEEE Conference on Control Technology and Applications (CCTA) 2024, August 2024.
  BibTeX TR2024-111 PDF
  - @inproceedings{Bortoff2024aug,
  - author = {Bortoff, Scott A. and Qiao, Hongtao and Laughman, Christopher R.},
  - title = {{Modeling and Control of a Multi-Mode Heat Pump}},
  - booktitle = {IEEE Conference on Control Technology and Applications (CCTA) 2024},
  - year = 2024,
  - month = aug,
  - url = {https://www.merl.com/publications/TR2024-111}
  - }
- Ma, J., Qiao, H., Laughman, C.R., "A Physics-Constrained Data-Driven Modeling Approach for Vapor Compression Systems", International Refrigeration and Air Conditioning Conference at Purdue, July 2024.
  BibTeX TR2024-102 PDF
  - @inproceedings{Ma2024jul,
  - author = {Ma, JiaCheng and Qiao, Hongtao and Laughman, Christopher R.},
  - title = {{A Physics-Constrained Data-Driven Modeling Approach for Vapor Compression Systems}},
  - booktitle = {International Refrigeration and Air Conditioning Conference at Purdue},
  - year = 2024,
  - month = jul,
  - url = {https://www.merl.com/publications/TR2024-102}
  - }
- Laughman, C.R., Deshpande, V.M., Chakrabarty, A., Qiao, H., "Enhancing Thermodynamic Data Quality for Refrigerant Mixtures: Domain-Informed Anomaly Detection and Removal", nternational Refrigeration and Air Conditioning Conference at Purdue, July 2024, pp. 2359, 1-10.
  BibTeX TR2024-099 PDF
  - @inproceedings{Laughman2024jul,
  - author = {Laughman, Christopher R. and Deshpande, Vedang M. and Chakrabarty, Ankush and Qiao, Hongtao},
  - title = {{Enhancing Thermodynamic Data Quality for Refrigerant Mixtures: Domain-Informed Anomaly Detection and Removal}},
  - booktitle = {International Refrigeration and Air Conditioning Conference at Purdue},
  - year = 2024,
  - pages = {2359, 1--10},
  - month = jul,
  - url = {https://www.merl.com/publications/TR2024-099}
  - }
See All MERL Publications for Hongtao
Other Publications
- 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, 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/}
  - }
- 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}
  - }
- 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}
  - }
- 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}
  - }
- 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 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. 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. 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

Co-simulation of HVAC Equipment and Airflow
MERL Issued Patents
- Title: "System and Method for Calculation of Thermofluid Properties using Saturation Curve-Aligned Coordinates"
  Inventors: Laughman, Christopher; Bortoff, Scott A.; Qiao, Hongtao
  Patent No.: 11,739,996
  Issue Date: Aug 29, 2023
- Title: "System and Method for Designing Heating, Ventilating, and Air-Conditioning (HVAC) Systems"
  Inventors: Nabi, Saleh; Qiao, Hongtao
  Patent No.: 11,580,281
  Issue Date: Feb 14, 2023
- Title: "CONTROLLING HVAC SYSTEM BY INVERSING AIRFLOW DYNAMICS"
  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, Daniel 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, Daniel 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, Daniel J; Bortoff, Scott A.
  Patent No.: 10,234,158
  Issue Date: Mar 19, 2019
See All Patents for MERL