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

Crawford, Douglas G., Rudolph R. Verderber, and Michael J. Siminovitch."Maintaining Optimum Light Output with a Thermally Conductive Heat Pipe."IEEE-IAS Annual Conference (1989).

Feustel, Helmut E., and Richard C. Diamond."Distribution Losses in Multifamily Domestic Hot Water Systems."Report prepared for the Southern California Edison Company (1989).

Johnson, Kenneth C.."Chromatic Dispersion Compensation in a Fresnel Lens by Means of a Diffraction Grating."SPIE Optical Materials Technology for Energy Efficiency and Solar Conversion Conf. XIII (1989).

Lampert, Carl M, and R'Sue Caron-Popowich."Electron Microscopy and Electrochemistry of Nickel Oxide Films for Electrochromic Devices Produced by Different Techniques."SPIE Optical and Optoelectronic Applied Science and Engineering Conference 1149 (1989).

Greenhouse, Daniel S., Ian L. Bailey, Peter A. Howarth, Sam M. Berman, and Bernice E. Rogowitz."Spatial Adaptation on Video Display Terminals."International Society for Optics and Photonics (SPIE) 1077 (1989) 27-34. DOI

Ward, Gregory J.."A Tool for Computing Luminance and Synthetic Images."IES Annual Conference (1989).

Krause, Florentin, and Jonathan G. Koomey."Unit Costs of Carbon Savings From Urban Trees, Rural Trees, and Electricity Conservation: A Utility Cost Perspective." (1989).

Grynberg, Anat."Validation of Radiance." (1989).

Seppänen, Olli, William J. Fisk, Joseph H Eto, and David T. Grimsrud."Comparison of Conventional Mixing and Displacement Air Conditioning and Ventilating Systems in U.S. Commerical Buildings."ASHRAE Summer Meeting (1989).

Schuman, Jennifer E., and Stephen E. Selkowitz."A Daylight Design Tool Using a Hypertext Format."11th International Congress CIB 1989 (1989).

Sullivan, Robert, and Stephen E. Selkowitz."Development of a Methodology to Evaluate the Energy and Comfort Performance to Fenestration."International Building Performance Simulation Association Building Simulation 89 Conference (1989).

Ward, Gregory J., Francis M. Rubinstein, and Anat Grynberg."Luminance in Computer-Aided Lighting Design."Building Simulation Conference (1989).

Szydlowski, Richard F., and Richard C. Diamond."Data Specification Protocol for Multifamily Buildings."ASTM Standard Practice E (1989) 1410-91.

Sherman, Max H., Helmut E. Feustel, and Darryl J. Dickerhoff."Description of a System for Measuring Interzonal Air Flows Using Multiple Tracer Gasses." (1989).

Traynor, Gregory W., Michael G. Apte, Richard C. Diamond, and Alicia L. Woods."The Need for a Carbon Monoxide Passive Sampler." (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

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

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

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.."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."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 ASHRAE/DOE/BTECC Conference, Thermal Performance of the Exterior Envelopes of Buildings Conference IV (1989) 417-432.

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).

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.

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).