Engineered Systems articles from December 2004

Engineered Systems archives from December 2004

From seasonal to evergreen.(editor's note)
December 1, 2004... This is a natural time of year to think about things green. More than a few companies will be focused on year-end financial results. Elsewhere, many will also be observing a tradition that sounds kind of odd when you write it down: go get a...

Calendar of events.(Calendar)
December 1, 2004... FEBRUARY 2004 For more events and details, visit ESOnline at www.esmogazine.com. 5-9 ASHRAE Winter Meeting American Society of Heating, Refrigerating and Air-Conditioning Engineers Orlando, FL. For info, visit www.ashrae.org. ...

Back to basics[TM].
December 1, 2004... Helpful Hints * Refer to this month's "HVACR Designer Tips Checklist" for the project closeout checklist and the "Application Checklist" for the HVAC application analysis and system selection scorecard. * Refer to both the 2004...

Tankless water heater gets country club back into swing of things.(case in point)
December 1, 2004... Dan Cook had a problem. After 14 years, the boiler system for the St. Charles Country Club called it quits. As clubhouse manager, Cook faced the task of replacing the two high-efficiency boilers and the 1,500-gal storage tank without disrupting...

What to commission? Five questions can guide the priorities for a given project.(commissioning)
December 1, 2004... When developing a commissioning plan for a specific project, each facility owner needs to decide what the scope of commissioning will be. Two basic questions define the scope of commissioning: * Which systems will be commissioned? *...

From Disneyland to Disney World: AHR Expo 2005: celebrating 75 years!(building automation)
December 1, 2004... Wow! Seventy-five years of AHR Expo, that is truly amazing. This year, the Expo will feature over 1,500 plus leading manufacturers and suppliers from 30 countries, thousands of new and upgraded products, and an anticipated 45,000-plus HVACR...

More about ground: every safe electrical system requires an effective conductor.(current affairs)
December 1, 2004... The last column explained the reasons for connecting the neutral point of an electrical system to ground. This month, we'll extend this concept to the National Electrical Code (NEC) requirements for grounding and bonding of electrical...

Garage system exhaust, makeup air, and energy recovery system: commissioning and project closeout checklist.
December 1, 2004... Equipment type: Garage system exhaust fan Equipment designation: EF-1 Barcode designation: 1111111 Area served: Parking garage Equipment location: Roof/mechanical room SPECIFICATION REVIEW * Confirm Division 1...

Calculating economizer savings ... continued.(weather report: October 2004)
December 1, 2004... In last month's column, we introduced a simple but reliable spreadsheet (which can be downloaded from the reference / tools page at climatequest.com) that calculates air and waterside economizer system cost savings using custom economizer...

What' New with Standard 62.1?(Cover Story)
December 1, 2004... Plenty, as it turns out. As the next ASHRAE meeting approaches, a new version of the ventilation document is almost ready to go, with new wording in some places and new requirements in others. Get the big picture on the thinking behind the...

Photocatalysis: raising the stakes for IAQ.
December 1, 2004... The recent emergence in the HVAC industry of air treatment applications based on advanced oxidizing technologies, such as photocatalysis, presents opportunities for improved IAQ. The author reports that this technology, coupled with current...

Humidification roundup.
December 1, 2004... How do you say "transmit humidity levels" in Swedish? Sure, you've needed to design or operate humidification systems before, but as winter kicks into full gear, we look at a host of features in some newer units and sensors. Improved nozzle...

Priming the pump.
December 1, 2004... A pumping system presents a number of chances to create confusion or misunderstanding in the construction drawings, even if the design is perfect. Here's a reference for selection options, diagrams, floor layout and more, to help a successful...

Cooling towers.(products in focus)
December 1, 2004... The company's NC[R] Class deliver thermal performance, low maintenance, versatility of options, low sound levels, and high crossflow tonnage densities per box. Features include high-efficiency fill and fans, gravity-flow water distribution, and...

Dampers.(products in focus)
December 1, 2004... The company's line of severe environment dampers is constructed completely of 316 stainless steel, including all options and accessories. The dampers are available in more than 20 models, providing draft damper functions; and in configurations...

Motors.(products in focus)
December 1, 2004... The company's permanent split capacitor (PSC) motor is designed to reduce motor watt and heat gain into the conditioned space. This results in reduced compressor loads with a corresponding reduction in compressor Watts, making the compressor...

Solid fuel products.(literature & catalogs)
December 1, 2004... This 24-page solid fuel catalog features the company's new products and fully rendered drawings for its Temp/Guard[A] all fuel chimneys, black stovepipes, and pellet chimneys. The drawings offer a view of typical installations through floors,...

Motors and drives.(literature & catalogs)
December 1, 2004... This special report reviews the technologies from the company's line of motors and drives in the context of applications and customer benefits. Technology features covered include direct torque control, direct drive using permanent magnet...

IAQ.(literature & catalogs)
December 1, 2004... The company's line of UVC Emitters[TM] for mold and microbial control is featured in this catalog. Included is information on products for commercial, health care, school, and industrial applications, as well as UVC output data, life cycle cost...

Certification vs. preservation: for historical buildings, it's not always best to follow the LEED[TM].(tomorrow's engineer)
December 1, 2004... This month, I'm following up my discussion on LEED[TM] achievement by taking a look at large historical buildings. Over the past year, various individuals in the historical preservation side of the building industry, have spoken with me about...