 |
|
| published Sunday, June 13, 2010 |
7187 Views :: 2 Comments
|
to install and more complicated to operate, a chiller plant offers a number of benefits over simple packaged cooling units, including greater energy efficiency, better controllability, and longer life.
|
| read more.. |
|
|
|
| published Tuesday, May 25, 2010 |
4261 Views :: 0 Comments
|
both high indoor air quality and energy efficiency requires an integrated design approach. There is a movement in the commercial real estate industry to pay more
attention to the issue of indoor air quality (IAQ) throughout the
design and construction stages of a building’s life.
|
| read more.. |
|
|
|
| published Monday, May 24, 2010 |
8376 Views :: 0 Comments
|
perform many
important functions to control the built environment. The physics and
basic mechanics of pumps have not changed substantially in the last
century.
|
| read more.. |
|
|
|
| published Thursday, May 13, 2010 |
5744 Views :: 0 Comments
|
the energy use of a drivepower system—which includes the motor, its controls, and the connection between the motor and the equipment it drives—designers need to consider how these components operate as a system rather than looking at them on an individual basis.
|
| read more.. |
|
|
|
| published Thursday, May 13, 2010 |
|
approach to building design, designers around the world have succeeded at creating highly efficient air-conditioning systems that provide excellent workspace comfort.
|
| read more.. |
|
|
|
| published Thursday, April 29, 2010 |
|
System Design Brief provides recommendations to help
engineers improve the efficiency of large HVAC systems. It focuses on
built-up variable-air-volume (VAV) systems in multistory office
buildings.
|
| read more.. |
|
|
|
| published Tuesday, January 12, 2010 |
2856 Views :: 0 Comments
|
In new construction projects,
significant energy savings can be achieved by incorporating
energy efficiency technologies in the project design. For facilities
being expanded or upgraded, ensuring the efficiency of the
refrigeration systems can lead to significant energy savings without
compromising productivity.
|
| read more.. |
|
|
|
| published Tuesday, January 05, 2010 |
1463 Views :: 0 Comments
|
, especially in California’s coastal
towns. While each new construction project will have a different ratio
of energy end uses, one can look at the existing building stock to get
an idea of how much is attributable to DHW systems. According to
the Department of Energy’s Residential Energy Consumption Survey
(RECS), DHW accounted for around 32% of overall energy use for
existing multifamily units in the late 1990’s.
|
| read more.. |
|
|
|
| published Tuesday, December 22, 2009 |
2315 Views :: 0 Comments
|
of the Standards’
ongoing effort to optimize energy use in modern construction. It’s
intent is to address the importance of proper system installation, as
realized energy savings from advanced systems depend on them being
installed and operating properly.
|
| read more.. |
|
|
|
| published Monday, October 26, 2009 |
2813 Views :: 1 Comments
|
in the industrial and manufacturing sectors, and it often results in a
large amount of waste heat that is discharged into the atmosphere.
|
| read more.. |
|
|
|
| published Monday, July 20, 2009 |
3514 Views :: 1 Comments
|
Despite its widespread application,
however, up to two-thirds of the compressed air systems
in operation have either an obvious problem that affects production
or a hidden problem that drives compressed air production
costs higher.
|
| read more.. |
|
|
|
| published Friday, June 12, 2009 |
3873 Views :: 1 Comments
|
commonly
encountered in existing buildings during retro-commissioning processes.
|
| read more.. |
|
|
|
| published Friday, June 12, 2009 |
3730 Views :: 0 Comments
|
in new
homes designed to provide comfortable living environments with lower
energy consumption and operating costs.
|
| read more.. |
|
|
|
| published Friday, June 12, 2009 |
5241 Views :: 0 Comments
|
that
varies the amount of ventilation outside air delivered to a space
based on input from a single carbon dioxide (CO2) sensor or group
of sensors.
|
| read more.. |
|
|
|
| published Friday, June 12, 2009 |
2586 Views :: 1 Comments
|
it is important to
understand the various daylight terms, calculation methods, and metrics
that are used in the rating systems and by the daylighting community.
|
| read more.. |
|
|
|
| published Friday, June 12, 2009 |
3609 Views :: 0 Comments
|
are all systematic methods of ensuring that a building
and its hardware perform to the level intended by the owner and design
team.
|
| read more.. |
|
|
|
| published Monday, January 12, 2009 |
10926 Views :: 0 Comments
|
can reach temperatures that are nearly 100°F above the ambient
temperature. A cool roof, by contrast, stays at or near the ambient
temperature due to the characteristics of its outer layer.
|
| read more.. |
|
|
|
| published Thursday, December 04, 2008 |
8180 Views :: 0 Comments
|
that encourages customers to reduce or shift their electric power usages under certain conditions to help utilities to overcome temporary constraints in the electricity supply.
|
| read more.. |
|
|
|
| published Tuesday, August 05, 2008 |
11207 Views :: 2 Comments
|
to conserve energy and reduce
electricity peak demand. The Outdoor Lighting Standards regulate
lighting power, controls, and allowed lighting fixture types.
Illuminated signs are also covered by the Standards.
|
| read more.. |
|
|
|
| published Wednesday, June 02, 2004 |
|
influencing glazing selections, whole-building lifecycle analysis is the best tool for determining the most costeffective solution. Few decisions that a designer makes have more impact on the appearance and utility of a building than the glazing selection.
|
| read more.. |
|
|
|
| published Sunday, May 02, 2004 |
|
photovoltaic technology, design teams may supply solar energy to building systems, integrate the technology seamlessly into the building design, and provide an economical renewable energy source for building owners.
|
| read more.. |
|
|
|
| published Friday, April 02, 2004 |
|
upgrades that reduce energy consumption also improve the visual environment and provide maintenance savings. Lighting systems offer extraordinary opportunities for cost-effective
energy savings. In addition, many strategies for reducing lighting
energy use often can improve the visual environment.
|
| read more.. |
|
|
|
| published Tuesday, March 02, 2004 |
|
more productive in a well-lit space that fosters better visual comfort. Lighting controls can increase the value of commercial buildings by
making them more comfortable, productive, and energy efficient. These
controls work either by turning lights off when they are not needed or
by dimming light output so that no more light is produced than necessary.
|
| read more.. |
|
|
|
| published Monday, February 02, 2004 |
|
fluorescents outshine their high-intensity discharge competitors. They are often more efficient and feature lower lumen depreciation rates, better dimming options, instant start-up, and better color rendition.
|
| read more.. |
|
|
|
| published Sunday, November 02, 2003 |
|
design methods for rooftop heating, ventilation, and air conditioning (HVAC) systems, significant improvements in operational savings, energy efficiency, and indoor comfort can be achieved.
|
| read more.. |
|
|
|
| published Thursday, October 02, 2003 |
|
and access floor systems can provide energy savings, improved indoor air quality, and a technology ready environment for today’s commercial buildings.
|
| read more.. |
|
|
|
| published Tuesday, September 02, 2003 |
|
as much as they should and some waste a lot of energy. Better design, controls, installation, monitoring, and maintenance can help economizers meet their potential.
|
| read more.. |
|
|
|
| published Wednesday, July 02, 2003 |
|
are
more efficient, more comfortable, more attractive, and more healthful
than systems that circulate air. Unlike most cooling systems in
California, which circulate cold air to
maintain comfort, most radiant cooling systems circulate cool water
through ceiling, wall, or floor panels. “Coolth” from that water is
then absorbed by occupants and interior spaces according to the
dynamics of thermal radiation.
|
| read more.. |
|
|
|
| published Friday, May 02, 2003 |
|
management systems save about 10 percent of overall annual building energy consumption. An energy management system (EMS) is a computer that controls the
operation of all major building systems, in order to run the building
efficiently and effectively. An EMS can reduce a building’s overall
energy use by about 10 percent.
|
| read more.. |
|
|
|
| published Wednesday, April 02, 2003 |
|
design features into a new construction project can significantly increase the energy efficiency of the building while also providing enhanced occupant comfort.
|
| read more.. |
|
|
|
| published Sunday, March 02, 2003 |
|
in large, low-rise commercial buildings
have been custom designed and site built, an expensive and
labor-intensive process. This design brief explores the benefits of a
better alternative: splayed modular skylight wells specifically
designed for use with suspended ceilings.
|
| read more.. |
|
|
|
| published Sunday, February 02, 2003 |
|
the exhaust ventilation system for a new
commercial restaurant, significant operational savings, energy
efficiency, and environmental improvements can be achieved.
|
| read more.. |
|
|
|
| published Thursday, January 02, 2003 |
|
can compromise the design team’s ability to
consider factors like life cycle cost, distribution efficiency,access,
maintainability, and system integration.
|
| read more.. |
|
|
|
| published Saturday, November 02, 2002 |
|
improved IAQ, cooling energy savings, and better acoustics for high performance buildings.
|
| read more.. |
|
|
|
| published Wednesday, October 02, 2002 |
|
conditions that are specific to a project’s
location, design teams are able to develop climate responsive building
designs. The result is a building that utilizes less energy and
provides a high quality and comfortable environment for the occupants.
|
| read more.. |
|
|
|
| published Monday, September 02, 2002 |
|
energy design approach, designers can
cost-effectively lower building operating costs while improving
workers’ comfort and boosting productivity.
|
| read more.. |
|
|
|
| published Friday, August 02, 2002 |
|
the country, building-industry professionals are
finding that commissioned buildings are more energy efficient, more
comfortable, and easier to maintain.
|
| read more.. |
|
|
|
| published Tuesday, July 02, 2002 |
|
providing design details can save an owner approximately 5% - 15% in energy costs. Building owners are spending more money on complex building systems
than ever before and yet many find they have building system problems.
Providing design details on construction documents can reduce these
problems and save money.
|
| read more.. |
|
|
|
| published Sunday, June 02, 2002 |
|
owners can maximize a building’s energy efficiency and save both capitaland operating costs. Energy-efficient design can be improved by design review. A process of
review both enhances design and fosters communication between
designers, owners, and builders
|
| read more.. |
|
|
|
| published Thursday, May 02, 2002 |
|
the design team needs to be involved in the construction process. Developing well-detailed construction documents is an important first
step in achieving energy and resource efficient projects. However,
projects are not successfully completed until the building and its
systems are constructed, commissioned, and fully operational according
to the design intent.
|
| read more.. |
|
|
|
| published Tuesday, April 02, 2002 |
|
to reward design professionals for the amount an energy efficient facility would save the owners in the future—instead of the amount they spend today—the economic interests of the design team and the owner would be more closely aligned, and the result should be more efficient buildings.
|
| read more.. |
|
|
|
| published Saturday, March 02, 2002 |
|
of the Daylighting Designer’s Toolkit, designers can improve the visual environment, create a higher-quality space, and lower energy costs for buildings.
|
| read more.. |
|
|
|
| published Saturday, February 02, 2002 |
|
are appropriate for all building
types, but some are especially useful for particular buildings. This
Design Brief reminds designers and builders of opportunities they
should consider in each of their projects.
|
| read more.. |
|
|
|
| published Tuesday, January 01, 2002 |
|
early in a project can lead to design
solutions that, though they appear simple, significantly improve
building energy performance.
|
| read more.. |
|
|
|