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Engineering Reference Materials for Economizer Diagram
  • Economizer

    The function of the economizer is as its name implies, to economize or save on cooling costs. Obviously, it costs money to operate the compressor. If the compressor can be shut down and the system still provide adequate cooling, energy savings can be realized. Heat internal to the building

  • White Paper: Computer Cooling Using Economizers and Free Cooling

    data center energy use doubled between 2000 and 2006 and predicts it will double again by 2012. Economizers-with their promise of "free-cooling"-are attracting much attention for their ability to reduce energy usage. Economizers also lessen wear and tear on precision cooling equipment and lower

  • WP #132: Economizer Modes of Data Center Cooling Systems

    In certain climates, some cooling systems can save over 70% in annual cooling energy costs by operating in economizer mode, corresponding to over 15% reduction in annualized PUE. However, there are at least 17 different types of economizer modes with imprecise industry definitions making

  • WP #132: Economizer Modes of Data Center Cooling Systems

    In certain climates, some cooling systems can save over 70% in annual cooling energy costs by operating in economizer mode, corresponding to over 15% reduction in annualized PUE. However, there are at least 17 different types of economizer modes with imprecise industry definitions making

  • Modulating Fan-Powered Economizers

    Broadening the applicability of energy recovery.

  • WP #136: High Efficiency Economizer-based Cooling Modules for Large Data Centers

    When a cooling plant operates in economizer mode, high energy-consuming mechanical systems can be turned off. A standardized, modular cooling plant designed to operate primarily in economizer mode not only reduces costs but also improves predictability and flexibility. This paper shows a new

  
Discussions about Economizer Diagram
  • Looking for Work

    Sean J. Eisenbeis EDUCATION BISMARCK STATE COLLEGE, BISMARCK, ND / MAJOR: ELECTRICAL POWER PLANT / MAJOR: GAS PROCESS PLANT TECHNOLOGY. DEGREE: ASSOCIATE OF APPLIED SCIENCE 03/2005 LONG BEACH COLLEGE, LONG BEACH, CA / MAJOR: AIRCRAFT MAINTENANCE TECHNOLOGY. DEGREE: ASSOCIATE O...

  • Water Chiller Performance Calulations-Basic Cycle

    Water chillers are commonly employed to chill water for air conditioning systems. This chilled water is circulated thru cooling coils. Air is passed over the coils to be cooled and dehumidified for indoor comfort. The basic components of a water chiller are a compressor and motor, an evaporator, a c...

  
News about Economizer Diagram
  • Phase Diagram of (Li1-xFex)OHFeSe: A Bridge between Iron Selenide and Arsenide Superconductors

    Journal of the American Chemical SocietyDOI: 10.1021/ja511292f (Source: Journal of the American Chemical Society)

  • Phase Diagram of Conjugated Polymer Blend P3HT/PF12TBT and the Morphology-Dependent Photovoltaic Performance

    The Journal of Physical Chemistry CDOI: 10.1021/jp511370x

  • Steam Tables

    (Metric and US units) This program provides the thermodynamic properties of water using IFC formulation for industrial use. Knowing any two properties, the user is able to completely define the properties of water/steam. Unlike most steam table programs, this program also provides the user with the point''s location on the T-S diagram. Multiple points can be connected by a line, defining the user''s process system. It even gives you the steam quality.

  • Excel Launches New Encyclopaedia

    Excel Networking Solutions, the copper, optical cabling and rack solutions provider, has published a 3rd edition of the Excel Encyclopaedia. The Encyclopaedia has been designed to be educational and impart factual content to consultants, M&E contractors, end users and installation partners and provide a thorough understanding of structured cabling and more importantly a complete insight into the Excel Structured Cabling Solution. Tracey Calcutt, marketing manager commented "Since we launched the first edition of the Encyclopaedia in September 2010 we have received great feedback about the overall content and the usefulness of the information included, not only about Excel but about structured cabling in general.' Tracey continued `In this third edition we've updated all of the information and added in new explanations, diagrams and generally more useful content. We've also produced more online SCS Infrastructure Specification documents to assist our partners with responding to complex tenders for Category 6A, 6, 5e and Data Centres, all of which can be downloaded from the partner area of the Excel website.' Tracey continued "A large majority of the Encyclopaedia has been written by key members of our team including two RCDD qualified technicians, one of which, Paul Cave is the Chairman of the BISCI Standards Committee, so the reader can be assured that they've got one trusted source of information written by the people that know what they're talking about." Tracey concluded "The Excel Encyclopaedia is available in electronic format from the Excel website to allow recipients to copy and paste the relevant information for their requirements and also links through to further information on the products on the online catalogue.' The Excel Encyclopaedia Edition 3.0 is available in English and will also be translated into French and Spanish. For further information on the Excel Solution please visit www.excel-networking.com.

  • MITx course aims to start worldwide conversation about global architecture

    Mark Jarzombek, MIT Professor of the History and Theory of Architecture, is already deeply familiar with the concepts behind global architecture-he has authored and co-authored two highly regarded books in the field, "A Global History of Architecture" (Wiley Press, 2006) and "Architecture of First Societies: A Global Perspective" (Wiley Press, 2013). Starting this September, however, he'll gain a whole new appreciation for what it means to teach globally when he launches 4.605x A Global History of Architecture. "I used to teach this course to 35 students each semester, and now I will be teaching it to 35,000. Of course," he jokes, "I don't know how many of them will survive till the end."A favorite among students for his engaging lectures, Jarzombek takes his subject matter very seriously. "I learned architecture in a very Eurocentric fashion. My first survey course covered Egypt, Greece, Rome, the Renaissance and the Enlightenment. But the gap between today's assumption that we live in a global world based on our economic inter-relations, and how little we really know about the cultures within that world, is becoming so extreme that it's a problem. This course is partly meant to help build our ability to think globally."4.605x A Global History of Architecture offers a fresh perspective on the principles and forces at play in architecture. A variety of influences, Jarzombek explains, can determine how a civilization develops its own architectural style. The Greeks used technological advances in iron to rapidly cut stone and build enormous monuments. Just as often, however, the transformations exercised on architecture are metaphysical: "Buddha generated a whole revolution of thought around him, but he never said anything about what a temple should look like. There was no architectural script, so its adherents began making essentially prototypes of what a proper Buddhist temple should be," explains Jarzombek. "The Christians, on the other hand, used Roman architecture as a model, without referencing its pagan temples. They chose the law forums - the basilica - and began to customize it for themselves. In both cases, their architecture was never frozen in time. It continued to change and reflect the core dynamics of human cultures."While all the content presented in 4.605x comes from the original MIT course, the comparison ends there for Jarzombek. "I actually don't think it's useful to compare MITx to a live version of this course," he insists. "A classroom always will have strong levels of interaction, but MITx has its own very real pedagogical advantages. First of all, the audience for this course has fabulous potential to start a truly international conversation about how we should be teaching global history. Moreover, we're already in the process of extending and expanding the material in a way that's impossible with a live course. We've added eight additional lectures that were not part of the original course, and by next year it will be twenty. That means that students can follow different tracks. Maybe they want to take a course that just emphasizes the civilizations of the Pacific Rim, or a course on a set of major monuments. In either case, the idea is for the student to see history at different scales, from the big picture of trans-regional histories to the local history of a building and its site."As he and his colleagues prepare the course for its September release, he has learned that it takes a lot of work. "It looks easy when students use the final product, but the background work and development is substantial. We've added a great deal of interaction in the form of questions, quizzes and assessments. There are maps, diagrams, timelines, and even the different parts of buildings that we'll ask students to assemble themselves. We also hope to have a lot of discussion."To create the original course was its own journey of discovery for Jarzombek, requiring several years of preparation. He visited many of the sites he describes in the course. In one case, he visited a remote, isolated monastery on the Ethiopian-Eritrean border, called Debra Damo, which was built in the 5th century. "You have to climb a cliff to get to it, and you certainly don't want to fall because it's about a six hour ride through the desert to the nearest village, and then a plane ride after that to the nearest city."Drawing from the experience, he notes that creating a massive open online course (MOOC) is clear evidence that we live in an information age, but we are still in the dark ages when it comes to truly understanding our global architecture heritage. "There are an amazing number of things about our past that can be learned from these buildings. But for a great number of important sites like [Debra Damo]," Jarzombek explains, "There is still very little scholarship. No plans, no drawings."He cites another location, Angkor Wat, as one of his favorite examples. "In terms of understanding European architecture, let's say we're at 90 percent - no one is going to discover a new Chartres cathedral tomorrow. But what we know about Angkor Wat probably only represents 10 percent of what there is to know. Imagine: this was one of the world's largest cities in 1000 A.D. It had a population of one million, yet no one has done a sustained study of its growth as an urban landscape."Inspiring students and teachers around the world to continue this type of scholarship, and to see architecture as a living force in our society, is precisely what Jarzombek's hopes to impart through teaching this course. "The point of this course has nothing to do with the rote identification of slides and monuments. It's about recognizing that architecture is always looking ahead towards some sort of future."

  
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Product Announcements for Economizer Diagram
Belimo Americas
Airside Economizer Solution - ZIP ECONOMIZER

codes and standards (ASHRAE 90.1-2010, IECC-2012, California Title 24-2013, ASHRAE 189.1-2011). The ZIP Economizer reliability and features mean economizers no longer have to be jumpered out or fixed closed and results in getting building energy efficiency back on track. The ZIP Economizer offers the enhanced features: Easy-to-Read Automotive Quality LCD Display.   Extremely simple to navigate, this display delivers clear live status information, easy setup and changes, and operating...

Schneider Electric IT
EcoBreeze Air Economizers

Description Air-side economizer that maximizes energy efficiency and reduces cooling costs by up to 75% EcoBreeze ™ is a pre-engineered and tested product designed to meet the expanding requirements for data center efficiency. EcoBreeze provides multiple modes of economization to maximize energy efficiency during the year. Additionally, it can utilize a supplemental mechanical cooling circuit to maintain the data center cooling set point on the worst of ambient conditions. Available...

Cleaver-Brooks
Tips to Increase Efficiency and Heat Recovery

material, and operating conditions. Standard economizer -- Economizers transfer energy from the boiler exhaust gas to the boiler feedwater in the form of “sensible heat. ”   Sensible heat is created by the transfer of the heat energy of the exhaust gas to boiler feedwater.   An economizer captures and redirects sensible heat from the hot flue gas that normally goes up the boiler stack.   This sensible heat increases the temperature of boiler feedwater or makeup water...