Across the country, ideas have changed about air conditioning in school buildings. The trend in recent years has been toward longer sessions, extending into the warm months at both ends. This trend is evident at the Ector County Independent School District ECISD in Odessa, Texas. Yet since the first air...
Coe College features 22 buildings situated within 12 city blocks in downtown Cedar Rapids, representing 733,000 square feet of facilities. They wanted to improve learning and teaching environment while reducing utility costs. They also wanted to replace deteriorating central air conditioning plant with efficient equipment running on EPA acceptable refrigerant...
A utility load research project has monitored over 167 single-family residences in Central Florida collecting baseline 15-minute data on air conditioner AC power consumption, interior air temperatures and appliance loads over a two year period. Within the project we evaluated the impact of replacing older existing air conditioners with modern...
This paper compiles power draw, air flow, and static pressure measurements of residential air handlers taken during nine separate field tests of space conditioning systems in Arizona, California, Florida, Nevada, and Canada. The fields tests show that air handler devices do not meet basic performance standards and that the interactions...
The goal was to investigate moisture-related problems and cooling energy use in a hot, humid climate. The primary difference between the homes was the cooling equipment. House A had a standard split air conditioner, while House B had a more efficient two-speed split air conditioner. All other aspects of the...
The Johnston County Schools rely on air conditioning systems. Today, Johnston County is the fastest growing school district in the state, with an enrollment of 23,000, and adding over 1,000 students per year. The growth is attributable to its location within the growing Raleigh metropolitan area, and along the growing...
Encapsulation with DuPont Zytel nylon resin replaces bobbin-wound coils and extends thermal cycling performance. A coil encapsulated in Zytel nylon resin is a key component of Warner Electric's World Clutch for automotive air conditioners. When energized, the coil acts like a solenoid, causing the clutch to engage the compressor.
Residents of California, Arizona, and Nevada don't need a weather forecast to know how oppressively hot it can get. During the seemingly endless summers, air conditioners are strained to keep the house cool and comfortable. Cardinal purchased two identical tract homes in Roseville, California, a bedroom community near Sacramento. One...
As the mercury starts to rise, so too does the urge to flip on the air conditioner. For those days when it's warm, but not quite hot enough to turn on the air conditioner, a ceiling fan is a great option - if you buy a good one that is...
Building moisture is usually controlled by air conditioning AC, but some installed systems cannot control the extreme moisture load encountered in Florida. One efficient approach to removing this excess moisture is the heat pipe. A heat pipe can greatly increase the moisture removal ability of an AC system and save...
Smartkontrols 21st Century heating and air conditioning control is one of the innovative, high-tech features of a new luxury apartment located in the heart of London's most exclusive residential district, Belgravia. The smartkontrols system also controls the split system heat pump air conditioning units, which provide warm or cool air...
When Great Bridge Middle School South was ready for a complete building upgrade, one thing that was certainly considered was the added worth and cost of an air conditioning system. The purpose of the HVAC upgrade was to replace the original steam boiler system and the few window air conditioners...
General Motors is beginning to see the payoff from better execution of some common-sense measures the auto industry has been talking about for decades, such as sharing costs across product platforms while keeping the resulting models distinct. For instance, the 2008 Cadillac CTS saves money, by sharing electronic parts...
Choosing an air conditioning system is an important decision. A poor choice may be costly and fail to provide the desired level of cooling. The best system depends on your climate, cooling needs and the design of your house. Consider several options before installing a cooling system. In many parts...
This paper presents the findings of a field monitoring study measuring the energy efficiency of four fancoil and split direct expansion air conditioning systems 'in use' within UK office buildings. The findings presented include the measured refrigeration and whole system energy efficiency, as well as the breakdown of energy consumption...
This paper deals with proper installation of central heat pumps and air conditioners. Incorrect installation of central heat pumps and air conditioners leads to high electric bills, poor indoor comfort, and maintenance problems. Many studies have shown that heat pumps and air conditioners even new units are often improperly charged,...
Solar-assisted air conditioning offers opportunities to meet the increasing cooling demand in buildings all over the world in an energy-efficient way. This report presents an overview of ongoing and recently completed R&D work, relevant for solar-assisted air conditioning. Descriptions of the projects that have been identified by Task 25 participants...
Braun's Bicycle Store, a family-owned business in southern Ontario, expanded in 1985 to larger retail and service facilities to accommodate a growing business. The store owners were faced with a choice between gas or oil-fired combustion equipment with electrical air conditioning and a GeoExchange geothermal heating and cooling system. Since...
This report summarizes the research work done in the PIER Program entitled: "Increased Energy Efficiency of Air Conditioners and Heat Pumps using Advanced Power Electronics." In this project, ESI generated several power electronics concepts and evaluated those using modeling and analysis tools at the circuit and system level. The paper...
How to Protect Your Car from the Stress of Summer Heat RICHMOND, Va., July 15 /PRNewswire/ -- Summer is here and vacations have begun. Although rising gas prices have curtailed summer traveling for some, many families are still enjoying vacations, albeit closer to home. Before you...
