District cooling is the centralized production and distribution of cooling energy. Chilled water is delivered from a centralized energy plant through an underground pipeline to commercial, industrial, and residential buildings to air-condition using chilled water. Excess heat is extracted from the building by the air conditioning systems’ heat exchangers. The water is then returned to Read more
Industry News
District cooling is the centralized production and distribution of cooling energy. Chilled water is delivered from a centralized energy plant through an underground pipeline to commercial, industrial, and residential buildings to air-condition using chilled water. Excess heat is extracted from the building by the air conditioning systems’ heat exchangers. The water is then returned to the central energy plant.
District cooling plants operate to meet the cooling energy demand of their customers, which could be dozens of buildings in a college campus or municipality. District cooling systems offer lower up-front construction costs and eliminate the need for chiller plant maintenance at the building level.
Customers of a district cooling plant pay for the volume of chilled water delivered to their building and may pay other charges as well. A peak demand charge may be assessed and penalties for returning water below the design or contracted temperature due to poor heat exchange. Our industry has proven that lower return water temperatures and low delta T decrease the efficiency of the entire chilled water system. This condition is known as “Low Delta T Syndrome.” Low Delta T syndrome is the result of the inefficient use of chilled water at the point of consumption. Belimo is sponsoring a webinar with High Performance Building on District Cooling and the effects of low Delta T. This webinar will provide a review of district chilled water system design and how low Delta T impacts both the chillers and the buildings the chillers are serving. We will also cover low Delta T and how it impacts pumping, causes of low Delta T, attempts to correct low Delta T and the relationship between low Delta T and chiller capacity. In conclusion, we will review a study of a building where “Low Delta T Syndrome” was corrected at the point of water to air heat transfer.
Webinar Objectives:
Identifying the importance of system design and pumping arrangements
Understanding the relationship between GPM and Delta T
How to calculate Btu and Tons
The types of district cooling building connections
Why maintaining Delta T is important in a district cooling system
Ontario, Calif. — For its 89th annual Education and Business Conference, the International Association of Plumbing and Mechanical Officials (IAPMO) is moving from “The Last Frontier” to the “Athens of America.” Attendees last year gathered in Anchorage, Alaska — this year they’ll converge on Philadelphia. IAPMO’s 2018 conference will be held Sept. 30-Oct. 4 at Read more
Ontario, Calif. — For its 89th annual Education and Business Conference, the International Association of Plumbing and Mechanical Officials (IAPMO) is moving from “The Last Frontier” to the “Athens of America.” Attendees last year gathered in Anchorage, Alaska — this year they’ll converge on Philadelphia.
IAPMO’s 2018 conference will be held Sept. 30-Oct. 4 at the Sheraton Philadelphia Downtown, a 756-room hotel situated within walking distance of numerous historical landmarks and top attractions. IAPMO welcomes former NBA all-star Mark Eaton as the conference’s keynote speaker. The 12-year veteran with the Utah Jazz is a successful entrepreneur, TV and radio talk show host, and world-class speaker, trainer, and coach.
In addition to top-notch educational seminars, code workshops, industry expo, and invaluable networking opportunities, conference goers will have the opportunity to participate in the Assembly Consideration Session toward development of the 2021 editions of the Uniform Plumbing Code (UPC®) and Uniform Mechanical Code (UMC®). IAPMO is employing an accelerated schedule within its ANSI-accredited code development cycle for these editions.
Full-week and one-day registration packages are available, as well as a group rate on accommodations at the Sheraton Philadelphia Downtown. The deadline for early registration, with an $80 discount off the regular price, is Aug. 31.
“Whether you’re a first-year plumbing apprentice or Lifetime IAPMO member, attending the annual Education and Business Conference is an amazing experience that will enrich your life personally and professionally,” said IAPMO President DJ Nunez.
Registration is available online at http://www.iapmo.org/Pages/IAPMOConference.aspx.
New Gen-Eye® USB video inspection system from General Pipe Cleaners lets you record videos and photos on popular USB flash drives. General’s top-of-the-line system includes all the features you need in a compact, lightweight package. The Command Module features a USB port to store video or still images (up to 128 GB capacity), a 10.5” Read more
New Gen-Eye® USB video inspection system from General Pipe Cleaners lets you record videos and photos on popular USB flash drives. General’s top-of-the-line system includes all the features you need in a compact, lightweight package.
The Command Module features a USB port to store video or still images (up to 128 GB capacity), a 10.5” LCD color monitor for crisp, clear pictures, and a full-size, waterproof keyboard for on-screen titling, footage counter, date and time stamp, and voice-over microphone. All are safely contained in a heavy-duty Pelican case that weighs just 12 lbs.
General offers three models of the USB series: The Gen-Eye USB, the USB-W with Wi-Fi inside to record inspections on your smartphone or tablet, and the USB-P premium inspection sytem that includes all the features of the USB, plus a sunlight readable screen and a 4 hour battery for remote operaton, as well as the Wi-Fi transmitter.
Full size reel units include 200 ft. or 300 ft. of Kevlar®-reinforced Gel-Rod™ for troubleshooting 3” to 10” lines – and a Self-leveling color camera. Mini-Reel models include either 100 ft. or 200 ft. Kevlar®-reinforced Mini Gel-Rod™ for 2” and 3” lines – and a Mini Self-leveling color camera. Both include trap skids and 512 hz transmitter for precise camera tracking.
General’s Gen-Eye Hot Spot® digital pipe locator makes locating easier than ever. Its total field antenna array and on-screen icons lead you right to your target, without the long learning curve. No need to interpret numbers and bar graphs. Arrows point you in the right direction and the Camera icon confirms you’re over the target.
For more information, contact the Drain Brains® at General Pipe Cleaners at 800-245-6200 or 412-771-6300, or visit www.drainbrain.com/geneye.
The Air-Conditioning, Heating, and Refrigeration Institute (AHRI), which represents manufacturers of heating, air conditioning, commercial refrigeration, and water heating products and equipment, is disappointed in the decision announced by President Trump to impose additional tariffs on steel and aluminum. As we made clear in letters to the President, and to Commerce Secretary Ross and U.S Read more
The Air-Conditioning, Heating, and Refrigeration Institute (AHRI), which represents manufacturers of heating, air conditioning, commercial refrigeration, and water heating products and equipment, is disappointed in the decision announced by President Trump to impose additional tariffs on steel and aluminum. As we made clear in letters to the President, and to Commerce Secretary Ross and U.S. Trade Representative Lighthizer, AHRI does not support additional tariffs on steel and aluminum due to their impact on manufacturers and consumers.
“As major users of steel and aluminum, we have been proactive in explaining to the administration that the HVACR and water heating industry would be negatively impacted by an increase in tariffs, as would the consumers that rely on the products we manufacture,” said AHRI President & CEO Stephen Yurek. “While we have been pleased with the Trump Administration’s enthusiastic support for manufacturing, we believe this step to be injurious, rather than helpful, to our efforts to increase American manufacturing and create jobs,” he added.
Atlanta — ASHRAE received a final determination issued by the U.S. Department of Energy (DOE) Building Energy Codes Program stating that ANSI/ASHRAE/IES Standard 90.1-2016, Energy Efficiency Standard for Buildings Except Low-Rise Residential Buildings, would achieve greater energy efficiency in commercial buildings subject to the code. Standard 90.1-2016 was published in October 2016. The standard achieved Read more
Atlanta — ASHRAE received a final determination issued by the U.S. Department of Energy (DOE) Building Energy Codes Program stating that ANSI/ASHRAE/IES Standard 90.1-2016, Energy Efficiency Standard for Buildings Except Low-Rise Residential Buildings, would achieve greater energy efficiency in commercial buildings subject to the code. Standard 90.1-2016 was published in October 2016.
The standard achieved this determination through DOE analysis indicating that buildings meeting 90.1-2016 (as compared to the previous 2013 edition) would result in national energy cost savings of approximately 8.2 percent, as regulated by the model code.
“Standard 90.1 has been a trusted source of guidance on energy efficiency requirements to built-environment professionals for more than 40 years,” says Bjarne W. Olesen, Ph.D., 2017-2018 ASHRAE President. “DOE’s final determination serves to reinforce the standing of 90.1 as the U.S. commercial building energy efficiency standard.”
The follow are DOE’s estimates of national savings in commercial buildings:
8.3 percent energy cost savings
7.9 percent source energy savings
6.8 percent site energy savings
This 2016 version of 90.1 is the 10th edition published since the original standard was first published in 1975 during the energy crisis of the United States. Standard 90.1 provides the minimum requirements for energy-efficient design of most buildings, except low-rise residential buildings. It offers, in detail, the minimum energy efficiency requirements for design and construction of new buildings and their systems, new portions of buildings and their systems, and new systems and equipment in existing buildings, as well as criteria for determining compliance with these requirements.
States are required to certify that the provisions of its commercial building code regarding energy efficiency have been reviewed and, as necessary, updated codes to meet or exceed the updated edition of Standard 90.1.
More information on DOE’s determination, along with supporting analysis and public comments received, is available at energycodes.gov/determinations.