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YuLong Xie

YuLong Xie

Pacific Northwest National Laboratory
PO Box 999
Richland, WA 99352


Dr. Yulong Xie's expertise pertains mainly to simulation and data analysis. He conducts building energy simulations to support the development of building energy codes and standards. He analyzes metering data to identify energy-efficient measures leading to efficient building design and field survey data to quantify energy saving that could be achieved through increased code compliance. He organizes large-scale energy simulations to evaluate potential energy savings and peak demand reductions from retuning opportunities. Since joining PNNL in 2000, he has also been contributing his simulation and data analytical expertise to a variety of projects, including applying neural networks, support vector machines, decision trees, and random forests to model salmon spawning behavior; deploying genetic algorithms for the siting of a meteorological monitoring station; using Bayesian modeling to assess pallid sturgeon abundance in the Missouri River system; applying Monte Carlo simulation of energy cascades from radiation interaction for the discovery of detector materials; and using Receptor Modeling for identifying aerosol sources and tracing their origins. He has authored/coauthored more than 70 peer-reviewed journal articles and book chapters.

Research Interests

  • Building Energy Code and Standards
  • Building, Energy Simulation, Field Data, and Metering Data Analysis
  • Data Mining, Machine Learning, Applied Statistics and Optimization
  • Monte Carlo Simulation, Geostatistics.

Education and Credentials

  • Ph.D. Chemometrics, Hunan University, China
  • M.S. Chemometrics, Hunan University, China
  • B.S. Chemistry, Xiangtan University, China

Affiliations and Professional Service

  • American Geophysical Union (AGU)
  • Geological Society of America (GSA)
  • International Association of Hydrological Sciences (IAHS)
  • International Association for Mathematical Geology (IAMG)

Awards and Recognitions

  • Visiting Scientist Fellowship awarded by the Ministry of Science and Education of Spain (1994-1996)
  • Tier-One Award for the Promotion of Science and Technoogy awarded by the Ministry of Education of China (1994)
  • Tier-Two Award for the Promotion of Science and Technoogy awarded by the Ministry of Machinery Industry of China (1994)
  • DuPont Scholarship awarded by DuPont Inc. (1992)

PNNL Publications


  • Fernandez NEP, S Katipamula, W Wang, YL Xie, and M Zhao. 2018. "Energy Savings Potential from Improved Building Controls for the U.S. Commercial Building Sector." Energy Efficiency 11(2):393-413.  doi:10.1007/s12053-017-9569-5
  • Burleyson CD, N Voisin, ZT Taylor, YL Xie, and IP Kraucunas. 2018. "Simulated Building Energy Demand Biases Resulting from the Use of Representative Weather Stations." Applied Energy 209:516-528.  doi:10.1016/j.apenergy.2017.08.244



  • Bartlett R, MA Halverson, VV Mendon, JE Hathaway, YL Xie, and M Zhao. 2016. Maryland Residential Energy Code Field Study: Baseline ReportPNNL-25970, Pacific Northwest National Laboratory, Richland, WA. 
  • Voisin N, MCW Kintner-Meyer, R Skaggs, TB Nguyen, D Wu, JA Dirks, YL Xie, and MI Hejazi. 2016. "Vulnerability of the US Western Electric Grid to Hydro-Climatological Conditions: How bad can it get?" Energy 115(Part 1):1-12.  doi:10.1016/





  • Xie YL, B Liu, RA Athalye, MC Baechler, and G Sullivan. 2012. "Measuring and Understanding the Energy Use Signatures of a Bank Building." In ACEEE Summer Study on Energy Efficiency in Buildings, August 12-17, 2012, Pacific Grove, California, pp. 9-317 - 9-328.  American Council for an Energy-Efficient Economy, Washington DC. 
  • Athalye RA, YL Xie, B Liu, and MC Baechler. 2012. "A Case Study: Using Integrated Approach to Design a Net-Zero Bank Branch." ASHRAE Transactions 118(1):183-190. 
  • Wang Z, YL Xie, LW Campbell, F Gao, and SN Kerisit. 2012. "Monte Carlo simulations of electron thermalization in alkali iodide and alkaline-earth fluoride scintillators ." Journal of Applied Physics 112(1):014906 .  doi:10.1063/1.4736088


  • Gao F, YL Xie, SN Kerisit, LW Campbell, and WJ Weber. 2011. "Yield, variance and spatial distribution of electron-hole pairs in CsI." Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment 652(1):564-567.  doi:10.1016/j.nima.2010.08.063
  • Thornton BA, MI Rosenberg, EE Richman, W Wang, YL Xie, J Zhang, H Cho, VV Mendon, RA Athalye, and B Liu. 2011. Achieving the 30% Goal: Energy and Cost Savings Analysis of ASHRAE Standard 90.1-2010PNNL-20405, Pacific Northwest National Laboratory, Richland, WA. 
  • Wang Z, YL Xie, BD Cannon, LW Campbell, F Gao, and SN Kerisit. 2011. "Computer Simulation of Electron Thermalization in CsI and CsI(Tl)." Journal of Applied Physics 110(6):Article No. 064903.  doi:10.1063/1.3632969


  • Placet M, S Katipamula, B Liu, JA Dirks, YL Xie, G Sullivan, J Walent, and R Williamson. 2010. "Energy End-Use Patterns in Full-Service Hotels: A Case Study." In 2010 ACEEE SUMMER STUDY ON ENERGY EFFICIENCY IN BUILDINGS , pp. 3-310 - 3-324.  American Council for an Energy-Efficient Economy, Washington, DC. 


  • Kerisit SN, KM Rosso, BD Cannon, F Gao, and YL Xie. 2009. "Computer Simulation of the Light Yield Nonlinearity of Inorganic Scintillators." Journal of Applied Physics 105(11):Art. No. 114915. 
  • Wong PC, LYR Leung, N Lu, ML Paget, J Correia, Jr, W Jiang, PS Mackey, ZT Taylor, YL Xie, J Xu, SD Unwin, and AP Sanfilippo. 2009. "Predicting the Impact of Climate Change on U.S. Power Grids and Its Wider Implications on National Security." In AAAI Spring Symposium on Technosocial Predictive Analytics, vol. SS-09-09, pp. 148-153.  AAAI Press, Menlo Park, CA. 


  • Xie YL, CJ Murray, TP Hanrahan, and DR Geist. 2008. "Data Mining on Large Data Set for Predicting Salmon Spawning Habitat." In Proceedings of The 2008 International Conference on Data Mining (DMIN'08), vol. 1, ed. R. Stahlbock, S. F. Crone and S. Lessmann, pp. 233-239.  CSREA Press, Athens, NV. 
  • Gao F, LW Campbell, YL Xie, R Devanathan, AJ Peurrung, and WJ Weber. 2008. "Electron-Hole Pairs Created by Photons and Intrinsic Properties in Detector Materials." IEEE Transactions on Nuclear Science 55(3):1079-1085.  doi:10.1109/TNS.2007.908917
  • Geist DR, CJ Murray, TP Hanrahan, and YL Xie. 2008. "A model of the effects of flow fluctuations on fall Chinook salmon spawning habitat availability in the Columbia River." North American Journal of Fisheries Management 28(6):1894-1910.  doi:10.1577/M07-074.1
  • Lu N, YL Xie, and Z Huang. 2008. Air Conditioner Compressor Performance ModelPNNL-17796, Pacific Northwest National Laboratory, Richland, WA. 
  • Lu N, YL Xie, Z Huang, F Puyleart, and S Yang. 2008. "Load Component Database of Household Appliances and Small Office Equipment." In 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century .  IEEE , Piscataway, NJ.  doi:10.1109/PES.2008.4596224
  • Lu N, ZT Taylor, W Jiang, YL Xie, LR Leung, J Correia, Jr, PC Wong, PS Mackey, and ML Paget. 2008. Climate Change Impacts on Residential and Commercial Loads in the Western U.S. Grid PNNL-17826, Pacific Northwest National Laboratory, Richland, WA. 
  • Shutthanandan V, YL Xie, RS Disselkamp, NS Laulainen, EA Smith, and S Thevuthasan. 2008. "MULTI-TECHNIQUE APPROACH TO MEASURE SIZE AND TIME RESOLVED ATMOSPHERIC AND RADIONUCLIDE AEROSOLS." International Journal of PIXE 18(3-4):209-218. 
  • Wang W, WJ Shaw, TE Seiple, JP Rishel, and YL Xie. 2008. "An Evaluation of a Diagnostic Wind Model (CALMET)." Journal of Applied Meteorology and Climatology 47(6):1739-1756. 
  • Williams MD, BG Fritz, DP Mendoza, ML Rockhold, PD Thorne, YL Xie, BN Bjornstad, RD Mackley, DR Newcomer, JE Szecsody, and VR Vermeul. 2008. Interim Report: 100-NR-2 Apatite Treatability Test: Low Concentration Calcium Citrate-Phosphate Solution Injection for In Situ Strontium-90 ImmobilizationPNNL-17429, Pacific Northwest National Laboratory, Richland, WA. 


  • Xie YL, and CM Berkowitz. 2007. "The Use of Conditional Probability Functions and Potential Source Contribution Functions to Identify Source Regions and Advection Pathways of Hydrocarbon Emissions in Houston, Texas." Atmospheric Environment 41(28):5831-5847. 
  • Gao F, LW Campbell, R Devanathan, YL Xie, LR Corrales, AJ Peurrung, and WJ Weber. 2007. "Monte Carlo Method For Simulating Gamma-Ray Interaction With Materials: A Case Study on Si." Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment 579(1):292-296.  doi:10.1016/j.nima.2007.04.063
  • Gao F, LW Campbell, R Devanathan, YL Xie, Y Zhang, AJ Peurrung, and WJ Weber. 2007. "Gamma-Ray Interaction in Ge: A Monte Carlo Simulation." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 255(1):286-290.  doi:10.1016/j.nimb.2006.11.031
  • Scheibe TD, H Dong, and YL Xie. 2007. "Correlation Between Bacterial Attachment Rate Coefficients and Hydraulic Conductivity and its Effect on Field-Scale Bacterial Transport." Advances in Water Resources 30(6-7):1571-1582.  doi:10.1016/j.advwatres.2006.05.021
  • Shaw WJ, W Wang, FC Rutz, EG Chapman, JP Rishel, YL Xie, TE Seiple, and KJ Allwine. 2007. Meteorological Integration for the Biological Warning and Incident Characterization (BWIC) System: General Guidance for BWIC Cities PNNL-16422, Pacific Northwest National Laboratory, Richland, WA. 
  • Xie YL, WJ Shaw, W Wang, TE Seiple, JP Rishel, FC Rutz, EG Chapman, and KJ Allwine. 2007. "A Genetic Algorithm Used to Optimize the Siting of Meterological Monitoring Stations." In Proceedings of the International Conference on Genetic and Evolutionary Methods (GEM'07), ed. HR Arabnia, JY Yang, and MQ Yang, pp. 81-87.  CSREA Press, Athens, GA. 


  • Xie YL, and CM Berkowitz. 2006. "The Use of Positive Matrix Factorization with Conditional Probability Functions in Air Quality Studies: An Application to Hydrocarbon Emissions in Houston, Texas." Atmospheric Environment 40(17):3070-3091.  doi:10.1016/j.atmosenv.2005.12.065
  • Johnson KS, B de Foy, BM Zuberi, L Molina, MJ Molina, YL Xie, A Laskin, and V Shutthanandan. 2006. "Aerosol Composition and Source Apportionment in the Mexico City Metropolitan Area with PIXE/PESA/STIM and Multivariate Analysis." Atmospheric Chemistry and Physics 6(12):4591-4600. 
  • Salcedo D, TB Onasch, K Dzepina, MR Canagaratna, Q Zhang, AJ Huffman, P DeCarlo, JT Jayne, P Mortimer, DR Worsnop, CE Kolb, KS Johnson, BM Zuberi, L Marr, RM Volkamer, L Molina, MJ Molina, B Cardenas, R Bernabe, C Marquez, JS Gaffney, NA Marley, A Laskin, V Shutthanandan, YL Xie, WH Brune, R Lesher, T Shirley, and JL Jiminez. 2006. "Characterization of Ambient Aerosols in Mexico City during the MCMA-2003 Campaign with Aerosol Mass Spectrometry. Results from the CENICA Supersite." Atmospheric Chemistry and Physics 6:925-946. 


  • Salcedo D, K Dzepina, TB Onasch, MR Canagaratna, JT Jayne, DR Worsnop, JS Gaffney, NA Marley, KS Johnson, BM Zuberi, L Molina, MJ Molina, V Shutthanandan, YL Xie, and JL Jimenez. 2005. "Characterization of Ambient Aerosols in Mexico City during the MCMA-2003 Campaign with Aerosol Mass Spectrometry. Part II: Overview of the Results at the CENICA Supersite and Comparison to Previous Studies." Atmospheric Chemistry and Physics Discussions 5:4183-4221. 


  • Wildung RE, SMW Li, CJ Murray, KM Krupka, YL Xie, NJ Hess, and EE Roden. 2004. "Technetium Reduction in Sediments of a Shallow Aquifer Exhibiting Dissimilatory Iron Reduction Potential ." FEMS Microbiology Ecology 49(1):151-162. 


  • Savelieva-Trofimova EA, M Kanevski, timonin, A Pozdnukhov, CJ Murray, TD Scheibe, YL Xie, PD Thorne, and CR Cole. 2003. "Aquifer Hydrogeologic Layer Zonation at the Hanford Site." In Proceedings IAMG 2003, p. 46+.  International Association for Mathematical Geosciences, Kingston, ONT. 
  • Scheibe TD, CJ Murray, YL Xie, MD Williams, CR Cole, VR Vermeul, and MP Bergeron. 2003. "Temporal and Spatial Weighting of Head and Concentration Observations for a Large-Scale Transient Inverse Model." In Proceedings of Modflow and More 2003: Understanding through Modeling, pp. 610-614.  Colorado School of Mines, International Ground Water Modeling Center, Golden, CO. 
  • Vermeul VR, MP Bergeron, CR Cole, CJ Murray, WE Nichols, TD Scheibe, PD Thorne, SR Waichler, and YL Xie. 2003. Transient Inverse Calibration of the Site-Wide Groundwater Flow Model (ACM-2): FY03 Progress Report PNNL-14398, Pacific Northwest National Laboratory, Richland, WA. 
  • Xie YL, CJ Murray, GV Last, and RD Mackley. 2003. Mineralogical and Bulk-Rock Geochemical Signatures of Ringold and Hanford Formation Sediments PNNL-14202, Pacific Northwest National Laboratory, Richland, WA. 

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