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

1989

Rubinstein, Francis M, Rudolph R Verderber, and Gregory J Ward."Photoelectric Control of Daylight-Following Lighting Systems." (1989).

Arasteh, Dariush K, Stephen E Selkowitz, and John R Wolfe."The Design and Testing of a Highly Insulating Glazing System for Use with Conventional Window Systems."Journal of Solar Energy Engineering 111.1 (1989) 44-53. DOI

Yuill, Grenville K, and Craig P Wray."A Microcomputer Program for Evaluating the Performance of Buildings Equipped with Ventilator Window/Baseboard Heating Systems."SESCI Energy Solutions for Today Conference (1989).

Sherman, Max H, and Darryl J Dickerhoff."A Multigas Tracer System for Multizone Air Flow Measurements."Proceedings of the ASHRAE/DOE/BTECC Conference, Thermal Performance of the Exterior Envelopes of Buildings Conference IV (1989) 417-432.

Feustel, Helmut E, and Max H Sherman."A Simplified Model for Predicting Air Flow in Multizone Structures."Energy and Buildings 13.3 (1989) 217-239.

Wray, Craig P, and Grenville K Yuill."An Annotated Guide to Models and Algorithms for Energy Calculations Relating to HVAC Equipment."Report to the American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (1989).

Sherman, Max H."Analysis of Errors Associated with Passive Ventilation Measurement Techniques."Building and Environment 24.2 (1989) 131-139.

Sherman, Max H."On Estimation of Multizone Ventilation Rates from Tracer Gas Measurements."Building and Environment 24.4 (1989) 355-362.

Yuill, Grenville K, and Craig P Wray."Sampling Errors in Short Term Measurements of Average Radon Levels in Houses."SESCI Energy Solutions for Today Conference (1989).

Dumortier, Dominique, Ron C Kammerud, Bruce E Birdsall, Brandt Andersson, Joseph H Eto, William L Carroll, and Frederick C Winkelmann."Thermal Energy Storage System Sizing."IBPSA Building Simulation '89 (1989).

Sherman, Max H."Uncertainty in Air Flow Calculations Using Tracer Gas Measurements."Building and Environment 24.4 (1989) 347-354.

Schuman, Jennifer E, Robert Sullivan, Stephen E Selkowitz, Michael Wilde, and Michael D Kroelinger."A Daylight Design Tool Using a Hypercard on the Macintosh."3rd National Conference on Microcomputer Applications in Energy (1989).

Dexter, Arthur L, and Philip Haves."A Robust Self-Tuning Controller for HVAC Applications."ASHRAE Transactions (1989).

Arasteh, Dariush K, M. M Susan Reilly, and Michael D Rubin."A Versatile Procedure for Calculating Heat Transfer Through Windows."ASHRAE Transactions 95 (1989).

Lampert, Carl M."Chemical and Optical Studies of Electrochromic Hydrated Nickel Oxide Films and Devices."Large Area Chromogenics: Materials and Devices for Transmittance Control (1989).

Selkowitz, Stephen E."Daylighting Technology Assessment: Final Report. NYSERDA." (1989).

Lampert, Carl M."Failure and Degradation Modes in Selected Solar Materials: A Review." (1989).

Sullivan, Robert, and Stephen E Selkowitz."Fenestration Performance Analysis Using an Interactive Graphics-Based Methodology on a Microcomputer."ASHRAE Transactions 95 (1989).

Wray, Craig P, Gordon M Comeau, Grenville K Yuill, and G.K Yuill and Associates Ltd."Performance Evaluation of a Laminar Airflow Window / Humidity-Controlled Air Inlet / Baseboard Heater Ventilation and Heating System."Report to Willmar Window Industries (1989).

Dexter, Arthur L, and Philip Haves."Simulation of Local Loop Controls."Building Simulation 89 (1989).

Walker, Iain S."Single Zone Air Infiltration Modeling."Department of Mechanical Engineering (1989).

Clear, Robert D, and Sam M Berman."Speed, Accuracy, and VL."Journal of the Illuminating Engineering Society 19 (1989) 124-131.

Reilly, M. M Susan, Dariush K Arasteh, and Michael D Rubin."The Effects of Infrared Absorbing Gasses on Window Heat Transfer: A Comparison of Theory and Experiment."Solar Energy Materials 20 (1989) 277-288.

1988

Berman, Sam M, Don L Jewett, George Fein, Glenn Y Saika, and F Ashford."Photopic Luminance Does Not Always Predict Perceived Room Brightness."Lighting Research and Technology 22.1 (1988) 37-41. DOI

Klems, Joseph H."U-Values, Solar Heat Gain, and Thermal Performance: Recent Studies Using the MoWiTT."ASHRAE TransactionsASHRAE Winter Meeting: Fenestration U-Value Symposium 95, part 1 (1988).