Adam Christensen

Adam Christensen
Building optimization models that help untangle issues of environmental sustainability.

Years at WID

2015 - present

Education

  • B.S., Mechanical Engineering, Milwaukee School of Engineering
  • M.S., Mechanical Engineering, Georgia Institute of Technology
  • Ph.D., Mechanical Engineering, Georgia Institute of Technology

Research Description

Adam Christensen’s interest in optimization sprung out of his interest in the policy making process and the analysis of those policies. His deeper motivation is to help policymakers, who may be interested in aspects of environmental sustainability, untangle a number of complicated decisions/tradeoffs inherent in interdependent systems. His current work has him developing large mixed integer programs (MIPs) to describe agricultural systems (i.e., concentrated animal feeding operations); these models can be used to understand the economic impacts of new environmental constraints that are designed to protect water sources. Previously, as an NSF SEES Fellow at Johns Hopkins University, he developed models of liquid fuel markets (gasoline, diesel, biofuels, etc…) to assess the impacts of policy changes with the Renewable Fuel Standard/California’s Low Carbon Fuel Standard. Before entering into the field of optimization Adam was the 2010-12 American Society of Mechanical Engineers (ASME) / American Association for the Advancement of Science (AAAS) Congressional Science Fellow where he worked as a policy advisor in the U.S. House of Representatives and the U.S. Senate.

Honors

  • 2012-2015 National Science Foundation SEES (Science, Engineering and Education for Sustainability) Fellow @ Johns Hopkins University, Department of Geography and Environmental Engineering
  • 2011 American Society of Mechanical Engineers/American Association for the Advancement of Science Congressional Science Fellow (U.S. Senate — Sen. Dianne Feinstein)
  • 2010 American Society of Mechanical Engineers/American Association for the Advancement of Science Congressional Science Fellow (U.S. House of Representatives — Rep. Jay Inslee)

Selected Publications

  • A Christensen, B Hobbs, A model of state and federal biofuel policy: Feasibility assessment of the California Low Carbon Fuel Standard, Applied Energy 169, 799-812
  • S Siddiqui, A Christensen, Determining energy and climate market policy using multiobjective programs with equilibrium constraints, Energy 94, 316-325
  • A Christensen, S Siddiqui, Fuel price impacts and compliance costs associated with the Renewable Fuel Standard (RFS), Energy Policy 86, 614-624
  • A Christensen, S Siddiqui, A mixed complementarity model for the US biofuel market with federal policy interventions, Biofuels, Bioproducts and Biorefining 9 (4), 397-411
  • S Sridharan, A Christensen, A Venkatachalam, S Graham, PD Yoder, Temperature-and doping-dependent anisotropic stationary electron velocity in wurtzite GaN, IEEE Electron Device Letters 32 (11), 1522-1524
  • A Christensen, S Graham, Multiscale lattice Boltzmann modeling of phonon transport in crystalline semiconductor materials, Numerical Heat Transfer, Part B: Fundamentals 57 (2), 89-109