About Us +
Researchers in the Building Technology & Urban Systems Division (BTUS) at Lawrence Berkeley National Laboratory develop data and technologies that increase energy efficiency and improve the health, safety and comfort of building occupants, in the United States and worldwide.

We work closely with industry partners, academics and government officials to achieve these goals, and share our research widely
Research +
We are at the forefront of cutting-edge research that redefines building technology and explores all areas of urban systems.

We have been leaders for decades in developing energy-efficient windows, improving indoor air quality, coming up with new ideas to fix the nation's electricity grid, and so much more.

Visit our research areas at the right to find out more.
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Publications +
Enjoy presentations from Building Technology & Urban systems research experts on a wide variety of topics in the areas of building energy efficiency, the electricity grid and how it relates to buildings and much more.
- Presentations
News
Tools & Guides +
Explore our tools, guidebooks and software and download for free.

We offer a variety of technologies designed to simulate and model real-world circumstances to assist in energy-saving programs and help building owners build better buildings. These tools can help calculate performance of building systems like windows and shades, help consumers and builders pick the best windows for a variety of applications and much more.

Publications

Publications By Research Area

2009

Hong, Tianzhen."A close look at the China design standard for energy efficiency of public buildings."Energy and Buildings 41.4 (2009) 426-435. DOI

Liu, Xiaobing, and Tianzhen Hong."Comparison of energy efficiency between variable refrigerant flow systems and ground source heat pump systems."Energy and Buildings 42.5 (2009) 584-589. DOI

Wang, Liping, and Nyuk Hien Wong."Coupled simulations for naturally ventilated rooms between building simulation (BS) and computational fluid dynamics (CFD) for better prediction of indoor thermal environment."Building and Environment 44.1 (2009) 95-112.

Sherman, Max H."Infiltration in ASHRAE’s Residential Ventilation Standards."ASHRAE Transactions 115 (2009) 887-896.

Walker, Iain S."Ozone Reductions Using Residential Building Envelopes."INIVE EEIG 30 (2009).

Shen, Eric, and Tianzhen Hong."Simulation-based assessment of the energy savings benefits of integrated control in office buildings."Building Simulation 2.4 (2009) 239-251. DOI

Xu, Tengfang T, Chuang Wang, Tianzhen Hong, and Mark D Levine."Technical Assistance to Beichuan Reconstruction: Creating and Designing Low- to Zero-carbon Communities in New Beichuan." (2009).

Krus, Martin, Thierry Stephane Nouidui, and Klaus Sedlbauer."Application of software tools for moisture protection of buildings in different climate zones."6th International Conference on Cold Climate, Heating, Ventilating and Air-Conditioning (2009).

Wu, Lixia, Mingsheng Liu, Xiufeng Pang, Gang Wang, and Thomas G Lewis."CCLEP Reduces Energy Consumption by More than 50% for a Luxury Shopping Mall."ASHRAE Transactions 115.2 (2009) 492-501.

Han, Hwataik, Cheol-Yong Shin, Douglas P Sullivan, and William J Fisk."CFD simulations of airflows around outdoor air intake louver."9th International Healthy Buildings Conference 2009, September 13-17, 2009 (2009).

Trcka, Marija, Jan Hensen, and Michael Wetter."Co-simulation of innovative integrated HVAC systems in buildings."Journal of Building Performance Simulation 2.3 (2009) 209-230. DOI

Bell, Geoffrey C, and Clifford C Federspiel."Demonstration of Datacenter Automation Software and Hardware (DASH) at the California Franchise Tax Board." (2009).

Zuo, Wangda, and Qingyan Chen."Fast parallelized flow simulations on graphic processing units."the 11th International Conference on Air Distribution in Rooms (RoomVent 2009) (2009).

Al-Beaini, Sara, Sam Borgeson, Brian E Coffey, David Gregory, Kyle S Konis, Corinne D Scown, Jelena Simjanovic, John Stanley, Bret Strogen, and Iain S Walker."Feasibility of Achieving a Zero-Net-Energy, Zero-Net-Cost Homes." (2009).

Wetter, Michael."Generic Optimization Program User Manual Version 3.0.0." 113 (2009) 380-391.

Akbari, Hashem."Hashem Akbari speaks to BBC Radio World Service about global cooling."BBC (2009).

Zuo, Wangda, and Qingyan Chen."High performance computing for indoor air."11th International IBPSA Conference (Building Simulation 2009) (2009) 244-249.

Singer, Brett C, and William F Tschudi."High Performance Healthcare Buildings: A Roadmap to Improved Energy Efficiency." 515 (2009) 5264-69.

Anders, André, Sunnie H.N Lim, Kin Man Yu, Joakim Andersson, Johanna Rosén, Mike McFarland, and Jeff Brown."High quality ZnO:Al transparent conducting oxide films synthesized by pulsed filtered cathodic arc deposition."Thin Solid Films (2009).

Mathew, Paul A, Steve E Greenberg, Srirupa Ganguly, Dale A Sartor, and William F Tschudi."How Does Your Data Center Measure Up? Energy Efficiency Metrics and Benchmarks for Data Center Infrastructure Systems."HPAC Journal (2009).

Mendell, Mark J, and Anna G Mirer."Indoor Thermal Factors and Symptoms in Office Workers: Findings from the U.S. EPA BASE Study."Indoor Air 19.4 (2009) 291-302.

Costa, Andrea, Marcus Keane, Paul Raferty, and James O'Donnell."Key Factors - Methodology for Enhancement and Support of Building Energy Performance."Building Simulation 2009 (2009).

Sherman, Max H, and Iain S Walker."Measured Air Distribution Effectiveness for Residential Mechanical Ventilation Systems."ASHRAE HVAC&R Research Journal 15.2 (2009) 211-230.

Wetter, Michael."Modelica Library for Building Heating, Ventilation and Air-Conditioning Systems."7th International Modelica Conference (2009).

Wetter, Michael."Modelica-based Modeling and Simulation to Support Research and Development in Building Energy and Control Systems."Journal of Building Performance Simulation 2.2 (2009) 143-161. DOI