Graham Linn

PE, LEED BD+C

President, HabLab LLC

CAREER HISTORY

• HabLab (2021 - present)

• HGA (2018-2021)

• Sustainable Engineering Group (2013-2018)

• Transsolar Inc (NYC Office) (2012)

• US Air Force Research Laboratory (2007-2011)

PROFESSIONAL REGISTRATIONS

• Registered Professional Engineer – Wisconsin

• USGBC LEED® Accredited Professional

EDUCATION

• Computational Fluid Dynamics Course - UW Madison Mechanical Engineering (Fall 2018)

• University of Dayton - Dayton, Ohio - MS, Renewable and Clean Energy (2012)

• University of Portland - Portland, Oregon - BS, Electrical Engineering (2007)

MEMBERSHIPS

• International Building Performance and Simulation Association (IBPSA)

• U.S. Green Building Council (USGBC)

POSITIONS

• Founding Member, IBPSA-Wisconsin Board

• Coordinator, IBPSA-USA Justice-Equity-Diversity- Inclusivity (JEDI) Working Group

PROJECT SUMMARY

Provided value through simulation at all stages of building lifecycle

• Analyzed HVAC systems including geothermal, radiant floor, DOAS, chillers (heat pump, absorption, water/air cooled), VRF, and traditional RTUs

• Completed 20+ ASHRAE 90.1 Appendix G LEED and Code Compliance Energy Models

• Studied daylighting performance options by varying glazing type/placement with direct and frequent communication with architect

• Optimized building performance during occupancy by comparing actual and modeled energy consumption and provided ideas for improvement and on-site support to staff

• Performed Thermal Comfort analysis to enable optimum design

• Aided conceptual design with climate specific recommendations

Successfully commissioned over 20 new K-12 schools, clinics, office buildings, and municipal facilities

• Reviewed HVAC design for energy efficiency and constructability

• Built custom QA checklists for HVAC equipment installation based on best practices

• Conducted onsite review of energy systems and communicated issues to contractors

• Performed extensive onsite performance testing of HVAC and daylighting systems

• Coordinated issue resolution with building owner, contractors, design team at construction sites and via e-mail/phone while managing tight time frames

Designed Photovoltaic energy systems and provided design build narrative/spec for building owners

SOFTWARE

• Energy: OpenStudio, DesignBuilder, EnergyPlus, TRNSYS, eQuest, EnergyPro, Trane TRACE

• Thermal Comfort/CFD: OpenFOAM, DesignBuilder, Butterfly (via Rhino)

• Daylighting: DIVA, Honeybee

• Envelope Analysis: WUFI, THERM

• 3-D Modeling: Revit, Rhino & Grasshopper, Sketchup

• Also: Python (including pandas), C/C++, Java, MATLAB