If the U.S. Department of Energy (DOE) fails to reconsider its decision to mandate a 30-percent energy-efficiency increase for central air conditioners and heat pumps, 84 percent of all central air conditioners and 86 percent of all heat- pump models on the market will be rendered obsolete, according to Ed Dooley, director of communications for the Air-Conditioning and Refrigeration Institute ...
A monthly compendium of facts and figuresNumber of years the Construction Specification Institute's MasterFormat has been in use: 40www.necanet.org/pressroom/releases/Report.cfm?ID=327The number of sections in Division 17, proposed by BICSI and the National Systems Contractors Association: 50www.
The Hydraulic Institute (HI), Parsippany, N.J., has just added two new standards to its ANSI/HI Pump Standards: the American National Standards for Air Operated Pumps (ANSI/HI 10.1-10.5-2004), and the American National Standards for Air Operated Pump Tests (ANSI/HI 10.6-2004). Air Operated Pump Standard This new standard is for air operated pumps, including positive displacement reciprocating pumps used for general liquid transfer, which are driven by means of compressed gas (usually air) from an outside source. The pump may be designed with a single diaphragm or double diaphragms connected to a reciprocating shaft in which one side of the diaphragm is in contact with the liquid being pumped, and the other side is in contact with the compressed gas (air). The standard includes the following sections: • Types, Configurations and Nomenclature• Definitions• Design and Application• Installation, Operation and Maintenance Air Operated Pump Test Standard This new standard applies to the test of air-operated diaphragm and bellows pumps.
HVAC experts should know something about radiation and it’s control for a variety of reasons. First, planning and designing effluent systems for laboratories and other industrial facilities requires some knowledge of this hazard and how it is used. Secondly, maintenance and repair of these systems will require some near contact with potentially contaminated components such as fume hoods, blowers, flow dampers and ductwork.
The Hilton @ Sandestin Beach Golf Resort & Spa, located in Destin, Fla.,along Florida’s northwest Gulf Coast between Pensacola and Panama City, features 600 guest suites, 32,000 sq. ft. of meeting space, four on-site restaurants, four championship golf courses, 13 tennis courts, two outdoor and one indoor swimming pool, and a full-service spa, salon and fitness center.
Mesa Public School District #4 is the largest school district in the state of Arizona. It boasts over 70,000 students in over 100 campuses scattered over 200 square miles. Because of rapid growth, Mesa Schools, like many other districts across the nation, were forced to utilize modular classrooms for two reasons.
A school district’s biggest expense after payroll is its utility bill. Because the HVAC system is a major component of a school’s utility bill, careful evaluation of a school’s HVAC requirements and equipment options can help administrators save money while actually improving learning productivity. Every school is different, so there is no one HVAC solution for all schools. Instead, there is a “best” solution for each individual school—chosen from careful evaluation—that maintains the highest possible indoor air quality at the lowest possible energy costs.
Water-based fire-suppression systems rely on an adequate water supply for proper operation, and fire pumps are often required to increase available water pressure. Engineers should always consider the following basic issues when writing specifications. Demand and Supply 1. Sprinkler- and standpipe-system water demand.
New research recently completed in schools provides additional insight into energy conservation, ventilation and indoor air quality (IAQ). The research utilized continuous IAQ monitoring technology, which measures temperature, relative humidity, carbon monoxide, carbon dioxide and odors and gases (TVOCs). Two comprehensive studies, conducted simultaneously in more than 100 classrooms in 11 Minnesota K-12 schools, will assist education professionals and decisions makers in all levels of state and federal government. Study Descriptions “Schools Air Monitoring Project for Learning & Energy Efficiency” (SAMPLE 2). The study was funded by a Minnesota public utility company as part of the State of Minnesota’s Conservation Improvement Program (CIP).
As one of the founding teams in the league that would become the NFL, the Chicago Bears are steeped in traditions that run deeper than most. The roster of retired Bears jerseys on display in the lobby of the team headquarters is awe-inspiring, the names timeless: Blanda, Butkus, Ditka, Payton, Sayers. The faithful converge on Soldier Field every home Sunday, win or lose, to shiver in the open air as the wind howls off Lake Michigan. Even the stadium itself, until recently a crumbling Greek temple with peeling plaster and questionable plumbing, has been part of the team’s mystique for more than 30 years. In such a franchise, change does not come easy.