How did Chicago's Loyola University create a book-less digital indoor research library that mimics the experience of the outdoors on a warm sunny day? They engineered a glass walled space that combines state-of-the-art radiant systems with natural ventilation and solar energy. The four-story, 70,000 sq ft Klarcheck Information Center earned a LEED Silver Certification for energy efficiency and design innovation. Located on the shores of Lake Michigan on a steadfastly green campus, the project attempted to take advantage of nature whenever possible to create indoor comfort.

The Danfoss AB-QM is the most compact PI-valve in the market, has the biggest choice in actuators, provides the most accurate temperature control, and has the fastest and easiest setting. All of this in the first real pressure independent balancing and control valve (PIBCV).
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According to a recent survey, more than half the commercial boiler systems in operation globally are more than 25 years old. Replacement is quite expensive. Today's energy saving engineers are designing a new generation of energy efficient gas-fired hydronic retrofit equipment that will make any old boiler like new again.

People prefer to work in a building where you can open a window and let in fresh air. But designing a commercial structure with operable windows means a lot of energy is lost when workers open them at will. New HVAC sensor switches can shut down heat pumps when a window is opened, giving designers energy-saving possibilities.

Looking for something cutting edge in commercial and industrial air-cooled water chillers? Here's a UK system that's highly efficient and ozone-friendly. Constructed of rugged components, these advanced chillers run silent. The 17 models feature reduced footprint, a variety of hydraulic options, and an electronic expansion valve.

Climatic test chambers need cooling. So where do you find a unit small, yet powerful enough for the job? This industrial cooler, tiny compared to commercial models, packs a cooling punch. It runs on a 15 A, 115 V power source, doesn't need compressed air or ultra-pure water to operate, and is made of stainless steel for durability.

Aspen's DC-powered rotary compressor comes in an exceptionally small package — 2.2 in. diameter, 3.0 in. height, and 1.3 lbs in weight. Yet, it's nominal 300 W cooling capacity is equivalent to many reciprocating compressors with 10x the size and weight. It is ideally suited for portable and mobile cooling products.

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Maybe greasy burgers from the local greasy spoon were super cool in the 50s, but kitchen grease can really foul up HVAC ductwork. Listen up, where there's grease, there's fire potential. After years of no significant change to the codes on installation of grease ducts for commercial kitchen applications, the NFPA announces new rules.

Convinced nothing is for free? For small commercial applications and municipal buildings a group of UK engineers are offering free energy with their advanced air-powered air heating system. The solar-powered HVAC units produce up to 2 kW of free, green energy per hour, and also boast significant dehumidification capabilities.

Encouraged by falling oil prices? Be very wary says the U.S. DOE and EPA in their recent energy plan entitled, National Action Plan for 2025: A Framework for Change. Produced by more than 60 energy policy leaders, the plan mimics European energy reduction proposals by calling for a 50% across-the-board energy cut over 20 years.

Some suggest ventilating commercial buildings with natural ventilation via a built-up green roof system of environmentally indigenous vegetation. An example of this LEED winning roofing/ventilating system is the San Francisco Academy of Sciences Museum. The roof's four domed structures act as a natural ventilation and cooling system.

Packed with over 1,000 pages of fundamental and practical HVAC design procedures and methods that are valuable to HVAC designers, practitioners, and students mastering HVAC fundamentals. Includes two CD-ROMs, Trace Load 700 from Trane Inc., and ESP PLUS from ITT Bell & Gossett.

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