Publications

33 / 3,591 publications found.


  •  Qiao, H., Kobayashi, T., Laughman, C.R., Bortoff, S.A., "On the Characteristics of One-Dimensional Compressible Flow", International Modelica Conference, Dirk Müller, Antonello Monti, and Andrea Benigni, Eds., DOI: 10.3384/​ecp204327, December 2023, pp. 327-336.
    BibTeX TR2024-001 PDF
    • @inproceedings{Qiao2023dec,
    • author = {Qiao, Hongtao and Kobayashi, Takashi and Laughman, Christopher R. and Bortoff, Scott A.},
    • title = {On the Characteristics of One-Dimensional Compressible Flow},
    • booktitle = {Proceedings of the 15th International Modelica Conference 2023},
    • year = 2023,
    • editor = {Dirk Müller, Antonello Monti, and Andrea Benigni},
    • pages = {327--336},
    • month = dec,
    • doi = {10.3384/ecp204327},
    • isbn = {978-91-8075-505-4},
    • url = {https://www.merl.com/publications/TR2024-001}
    • }
  •  Qiao, H., Laughman, C.R., "Theoretical analysis of cycling losses in air source heat pump systems", International Congress of Refrigeration (ICR), DOI: 10.18462/​iir.icr.2023.0765, September 2023.
    BibTeX TR2023-127 PDF
    • @inproceedings{Qiao2023sep,
    • author = {Qiao, Hongtao and Laughman, Christopher R.},
    • title = {Theoretical analysis of cycling losses in air source heat pump systems},
    • booktitle = {International Congress of Refrigeration (ICR)},
    • year = 2023,
    • month = sep,
    • publisher = {INTERNATIONAL INSTITUTE OF REFRIGERATION},
    • doi = {10.18462/iir.icr.2023.0765},
    • issn = {0151-1637},
    • isbn = {978-2-36215-055-5},
    • url = {https://www.merl.com/publications/TR2023-127}
    • }
  •  Laughman, C.R., Deshpande, V.M., Qiao, H., Bortoff, S.A., Chakrabarty, A., "Digital Twins for Vapor Compression Cycles: Challenges & Opportunities", International Congress of Refrigeration (ICR), DOI: 10.18462/​iir.icr.2023.0765, August 2023.
    BibTeX TR2023-103 PDF
    • @inproceedings{Laughman2023aug,
    • author = {Laughman, Christopher R. and Deshpande, Vedang M. and Qiao, Hongtao and Bortoff, Scott A. and Chakrabarty, Ankush},
    • title = {Digital Twins for Vapor Compression Cycles: Challenges & Opportunities},
    • booktitle = {International Congress of Refrigeration (ICR)},
    • year = 2023,
    • month = aug,
    • publisher = {INTERNATIONAL INSTITUTE OF REFRIGERATION},
    • doi = {10.18462/iir.icr.2023.0765},
    • issn = {0151-1637},
    • isbn = {978-2-36215-055-5},
    • url = {https://www.merl.com/publications/TR2023-103}
    • }
  •  Bhattacharya, C., Chakrabarty, A., Laughman, C.R., Qiao, H., "https://iwww.merl.com/TR/camready-4505.pdf", Modeling, Estimation and Control Conference, DOI: 10.1016/​j.ifacol.2022.11.168, December 2022, pp. 99-106.
    BibTeX TR2022-170 PDF
    • @inproceedings{Bhattacharya2022dec,
    • author = {Bhattacharya, Chandrachur and Chakrabarty, Ankush and Laughman, Christopher R. and Qiao, Hongtao},
    • title = {https://iwww.merl.com/TR/camready-4505.pdf},
    • booktitle = {Modeling, Estimation and Control Conference},
    • year = 2022,
    • pages = {99--106},
    • month = dec,
    • doi = {10.1016/j.ifacol.2022.11.168},
    • url = {https://www.merl.com/publications/TR2022-170}
    • }
  •  Qiao, H., Laughman, C.R., "Performance Enhancements for Zero-Flow Simulation of Vapor Compression Cycles", American Modelica Conference, DOI: 10.3384/​ECP21186128, October 2022, pp. 128-135.
    BibTeX TR2022-137 PDF
    • @inproceedings{Qiao2022oct,
    • author = {Qiao, Hongtao and Laughman, Christopher R.},
    • title = {Performance Enhancements for Zero-Flow Simulation of Vapor Compression Cycles},
    • booktitle = {PROCEEDINGS OF THE AMERICAN MODELICA CONFERENCE 2022},
    • year = 2022,
    • pages = {128--135},
    • month = oct,
    • doi = {10.3384/ECP21186128},
    • url = {https://www.merl.com/publications/TR2022-137}
    • }
  •  Qiao, H., Laughman, C.R., "Dynamic Modeling of Oil Transport in Vapor Compression Systems", International Refrigeration and Air Conditioning Conference (IRACC), July 2022.
    BibTeX TR2022-122 PDF
    • @inproceedings{Qiao2022sep,
    • author = {Qiao, Hongtao and Laughman, Christopher R.},
    • title = {Dynamic Modeling of Oil Transport in Vapor Compression Systems},
    • booktitle = {International Refrigeration and Air Conditioning Conference (IRACC)},
    • year = 2022,
    • month = jul,
    • url = {https://www.merl.com/publications/TR2022-122}
    • }
  •  Qiao, H., Laughman, C.R., "A Low-Order Model for Nonlinear Dynamics of Heat Exchangers", International Refrigeration and Air Conditioning Conference (IRACC), July 2022.
    BibTeX TR2022-123 PDF
    • @inproceedings{Qiao2022sep2,
    • author = {Qiao, Hongtao and Laughman, Christopher R.},
    • title = {A Low-Order Model for Nonlinear Dynamics of Heat Exchangers},
    • booktitle = {International Refrigeration and Air Conditioning Conference (IRACC)},
    • year = 2022,
    • month = jul,
    • url = {https://www.merl.com/publications/TR2022-123}
    • }
  •  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}
    • }
  •  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", Building Simulation Conference 2021, 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 = {Building Simulation Conference 2021},
    • year = 2021,
    • month = sep,
    • url = {https://www.merl.com/publications/TR2021-105}
    • }
  •  Qiao, H., Laughman, C.R., "Modeling and Analysis of Pressure Drop Oscillations in Horizontal Boiling Flow", International Refrigeration and Air Conditioning Conference (IRACC), August 2021.
    BibTeX TR2021-102 PDF
    • @inproceedings{Qiao2021aug,
    • author = {Qiao, Hongtao and Laughman, Christopher R.},
    • title = {Modeling and Analysis of Pressure Drop Oscillations in Horizontal Boiling Flow},
    • booktitle = {International Refrigeration and Air Conditioning Conference (IRACC)},
    • year = 2021,
    • month = aug,
    • url = {https://www.merl.com/publications/TR2021-102}
    • }
  •  Laughman, C.R., Qiao, H., "Patch-based Thermodynamic Property Models for the Subcritical Region", International Refrigeration and Air Conditioning Conference (IRACC), May 2021.
    BibTeX TR2021-053 PDF
    • @inproceedings{Laughman2021may,
    • author = {Laughman, Christopher R. and Qiao, Hongtao},
    • title = {Patch-based Thermodynamic Property Models for the Subcritical Region},
    • booktitle = {International Refrigeration and Air Conditioning Conference (IRACC)},
    • year = 2021,
    • month = may,
    • url = {https://www.merl.com/publications/TR2021-053}
    • }
  •  Laughman, C.R., Mackey, C., Bortoff, S.A., Qiao, H., "Modeling and Control of Radiant, Convective, and Ventilation Systems for Multizone Residences", Building Simulation, DOI: 10.26868/​25222708.2019.210847, September 2019.
    BibTeX TR2019-093 PDF
    • @article{Laughman2019sep,
    • author = {Laughman, Christopher R. and Mackey, Chris and Bortoff, Scott A. and Qiao, Hongtao},
    • title = {Modeling and Control of Radiant, Convective, and Ventilation Systems for Multizone Residences},
    • journal = {Building Simulation},
    • year = 2019,
    • month = sep,
    • doi = {10.26868/25222708.2019.210847},
    • url = {https://www.merl.com/publications/TR2019-093}
    • }
  •  Qiao, H., Nabi, S., Laughman, C.R., "Performance Evaluation of HVAC Systems via Coupled Simulation between Modelica and OpenFOAM", International Refrigeration and Air Conditioning Conference (IRACC), July 2019.
    BibTeX TR2019-073 PDF Video
    • @inproceedings{Hongtao2019jul,
    • author = {Qiao, Hongtao and Nabi, Saleh and Laughman, Christopher R.},
    • title = {Performance Evaluation of HVAC Systems via Coupled Simulation between Modelica and OpenFOAM},
    • booktitle = {International Refrigeration and Air Conditioning Conference (IRACC)},
    • year = 2019,
    • month = jul,
    • url = {https://www.merl.com/publications/TR2019-073}
    • }
  •  Li, Z., Qiao, H., Aute, V., "Tube-fin Heat Exchanger Circuitry Optimization For Improved Performance Under Frosting Conditions", International Modelica Conference, DOI: 10.3384/​ecp19157259, March 2019.
    BibTeX TR2018-212 PDF
    • @inproceedings{Li2019mar,
    • author = {Li, Zhenning and Qiao, Hongtao and Aute, Vikrant},
    • title = {Tube-fin Heat Exchanger Circuitry Optimization For Improved Performance Under Frosting Conditions},
    • booktitle = {International Modelica Conference},
    • year = 2019,
    • month = mar,
    • doi = {10.3384/ecp19157259},
    • url = {https://www.merl.com/publications/TR2018-212}
    • }
  •  Qiao, H., Nabi, S., Han, X., Laughman, C.R., "Coupled Simulation of a Room Air-conditioner with CFD Models for Indoor Environment", International Modelica Conference, March 2019.
    BibTeX TR2018-211 PDF
    • @inproceedings{Hongtao2019mar,
    • author = {Qiao, Hongtao and Nabi, Saleh and Han, Xu and Laughman, Christopher R.},
    • title = {Coupled Simulation of a Room Air-conditioner with CFD Models for Indoor Environment},
    • booktitle = {International Modelica Conference},
    • year = 2019,
    • month = mar,
    • url = {https://www.merl.com/publications/TR2018-211}
    • }
  •  Laughman, C.R., Qiao, H., "On Closure Relations for Dynamic Vapor Compression Cycle Models", American Modelica Conference, October 2018.
    BibTeX TR2018-153 PDF
    • @inproceedings{Laughman2018oct,
    • author = {Laughman, Christopher R. and Qiao, Hongtao},
    • title = {On Closure Relations for Dynamic Vapor Compression Cycle Models},
    • booktitle = {American Modelica Conference},
    • year = 2018,
    • month = oct,
    • url = {https://www.merl.com/publications/TR2018-153}
    • }
  •  Bortoff, S.A., Burns, D.J., Laughman, C.R., Qiao, H., Danielson, C., Goldsmith, A., Di Cairano, S., "Power Optimizing Control of Multi-Zone Heat Pumps", IEEE Conference on Control Technology and Applications, August 2018.
    BibTeX TR2018-127 PDF
    • @inproceedings{Bortoff2018aug2,
    • author = {Bortoff, Scott A. and Burns, Daniel J. and Laughman, Christopher R. and Qiao, Hongtao and Danielson, Claus and Goldsmith, Abraham and Di Cairano, Stefano},
    • title = {Power Optimizing Control of Multi-Zone Heat Pumps},
    • booktitle = {IEEE Conference on Control Technology and Applications},
    • year = 2018,
    • month = aug,
    • url = {https://www.merl.com/publications/TR2018-127}
    • }
  •  Qiao, H., Laughman, C.R., "Comparison of Approximate Momentum Equations in Dynamic Models of Vapor Compression Systems", International Heat Transfer Conference, August 2018.
    BibTeX TR2018-131 PDF
    • @inproceedings{Hongtao2018aug,
    • author = {Qiao, Hongtao and Laughman, Christopher R.},
    • title = {Comparison of Approximate Momentum Equations in Dynamic Models of Vapor Compression Systems},
    • booktitle = {International Heat Transfer Conference},
    • year = 2018,
    • month = aug,
    • url = {https://www.merl.com/publications/TR2018-131}
    • }
  •  Qiao, H., "Correction of Log Mean Temperature Difference Method and Effectiveness-NTU Relations for Two-phase Heat Transfer with Pressure Drop and Temperature Glide", International Refrigeration and Air Conditioning Conference (IRACC), July 2018.
    BibTeX TR2018-129 PDF
    • @inproceedings{Hongtao2018jul2,
    • author = {Qiao, Hongtao},
    • title = {Correction of Log Mean Temperature Difference Method and Effectiveness-NTU Relations for Two-phase Heat Transfer with Pressure Drop and Temperature Glide},
    • booktitle = {International Refrigeration and Air Conditioning Conference (IRACC)},
    • year = 2018,
    • month = jul,
    • url = {https://www.merl.com/publications/TR2018-129}
    • }
  •  Qiao, H., Laughman, C.R., "Numerical Modeling of Fin-and-Tube Condenser with Wet-wall Desuperheating", International Refrigeration and Air Conditioning Conference (IRACC), July 2018.
    BibTeX TR2018-130 PDF
    • @inproceedings{Hongtao2018jul,
    • author = {Qiao, Hongtao and Laughman, Christopher R.},
    • title = {Numerical Modeling of Fin-and-Tube Condenser with Wet-wall Desuperheating},
    • booktitle = {International Refrigeration and Air Conditioning Conference (IRACC)},
    • year = 2018,
    • month = jul,
    • url = {https://www.merl.com/publications/TR2018-130}
    • }
  •  Laughman, C.R., Bortoff, S.A., Qiao, H., "Integrated Control of Multi-Zone Buildings with Ventilation and VRF systems in Cooling Mode", Purdue High-Performance Buildings Conference, July 2018.
    BibTeX TR2018-099 PDF
    • @inproceedings{Laughman2018jul,
    • author = {Laughman, Christopher R. and Bortoff, Scott A. and Qiao, Hongtao},
    • title = {Integrated Control of Multi-Zone Buildings with Ventilation and VRF systems in Cooling Mode},
    • booktitle = {Purdue High-Performance Buildings Conference},
    • year = 2018,
    • month = jul,
    • url = {https://www.merl.com/publications/TR2018-099}
    • }
  •  Laughman, C.R., Bortoff, S.A., Qiao, H., "Modeling and Coordinated Control of an Air-Source Heat Pump and Hydronic Radiant Heating System", Japanese Modelica Conference, May 2018.
    BibTeX TR2018-059 PDF
    • @inproceedings{Laughman2018may,
    • author = {Laughman, Christopher R. and Bortoff, Scott A. and Qiao, Hongtao},
    • title = {Modeling and Coordinated Control of an Air-Source Heat Pump and Hydronic Radiant Heating System},
    • booktitle = {Japanese Modelica Conference},
    • year = 2018,
    • month = may,
    • url = {https://www.merl.com/publications/TR2018-059}
    • }
  •  Qiao, H., Aute, V., Radermacher, R., "Modeling of transient characteristics of an air source heat pump with vapor injection during reverse-cycle defrosting", Applied Energy, DOI: 10.1016/​j.ijrefrig.2017.12.017, Vol. 88, pp. 24-34, April 2018.
    BibTeX TR2018-066 PDF
    • @article{Hongtao2018apr,
    • author = {Qiao, Hongtao and Aute, Vikrant and Radermacher, Reinhard},
    • title = {Modeling of transient characteristics of an air source heat pump with vapor injection during reverse-cycle defrosting},
    • journal = {Applied Energy},
    • year = 2018,
    • volume = 88,
    • pages = {24--34},
    • month = apr,
    • publisher = {Elsevier},
    • doi = {10.1016/j.ijrefrig.2017.12.017},
    • url = {https://www.merl.com/publications/TR2018-066}
    • }