hvac engineering Articles

  • HVAC’s role in health care reform

    It seems that change is coming to the health care system in one form or another. Helping them keep their expenses down will be more crucial than ever. There also is a great deal of awareness of infection control, another area where mechanical systems play key roles. According to Robert Scheir, Ph.D., president and chairman, Steril-Aire Inc., “It is well established that a properly ...


  • Minimizing Refrigerant Emissions in HVAC Systems

    Managing the operation and maintenance of a facility's air conditioning equipment has always been a major responsibility, as chillers often represent the single largest electrical load in a facility. Since the annual cost of operating chillers is a major ...


    By IHS

  • Determining Proper Cooling Tower Size

    To maximize water-based cooling tower benefits, the appropriate tower size must be selected, requiring the identification of several critical factors. Cooling towers are a relatively inexpensive and reliable way of expelling heat from a number of industrial processes, including nuclear & thermal power plants, petroleum refineries, petrochemical plants, food processing plants, as well as HVAC ...


    By Delta Cooling Towers, Inc

  • Thermal destratification in buildings: The missing piece to the HVAC puzzle

    1. What is Thermal Destratification in buildings? Over recent years there have been many products available to reduce energy in buildings such as LED lighting, efficient HVAC (heating, ventilation and air conditioning) systems, sub metering, variable speed drive units and improved building fabrics etc. The use of any or all of these options will reduce the carbon footprint of a building ...


    By Drumbeat Energy Limited

  • How to Extend the Life of Your HVAC System

    How to Extend the Life of Your HVAC System  The Heating, Ventilation, and Air Cooling or HVAC system that you’ve installed in your house ensures comfort and clean air indoors for the entire family. It’s also probably one of the costliest systems in your home. So it only makes sense that you’d want to get the most out of it before it starts to show any wear, and prolong its ...


    By Filter Buy

  • UVC: Florida hospital puts HVAC maintenance under a new light

    HVAC system downtime during coil cleaning can compromise humidity and temperature control, potentially leading to air quality or comfort problems. Florida Hospital has found that high-output ultraviolet-C lights installed in the AHUs reduce or eliminate coil- cleaning programs — yielding ongoing energy savings, a reduction in HVAC system maintenance, and the elimination of cleaning ...


    By E-CO

  • HVAC technicians turn to RYDALL CC for its indoor/outdoor capabilities and non-corrosiveness case study

    The service technicians at a major HVAC company decided to put RYDALL CC  to the test against the coil cleaners they had been using for years.  These seasoned technicians were skeptical, but agreed to the test it when they learned that RYDALL CC  can be used both indoors and outdoors, will not harm roofing materials and is biodegradable! RYDALL CC  approach ...

  • Reducing noise levels through engineering controls

      It"s fairly easy to control personal exposure to noise by limiting exposure time or using hearing protectors like ear plugs or ear muffs.  Engineering controls are usually applied to the machinery that produces noise. Imagine a 200 foot x 175 foot manufacturing facility with a 30 foot high ceiling.  In this building are a variety of cut-off saws, grinders, millers and other ...

  • Miralite Skylights are engineered for a 30+ year life

    Miralite has been designed, manufactured and patented in the United Kingdom to afford active natural daylight into buildings to allow artificial lighting to be turned off for up to 10.5 hours a day! Unlike passive skylights Miralite uses solar-tracking technology to follow the sun and with the clever use of pre-determined angled mirrors drive natural light into a building. The result is a bright, ...


    By Smart Green Solutions Ltd

  • Florida Engineering Society - Mold Article - Understanding Mold in the Indoor Environment

    Untitled Document We can solve the mold problem. Understanding the basic ecology of fungi will lead us down the correct path. Yes, it will take some effort to change the way ...


    By EMSL Analytical, Inc.

  • Critical review on hospital surgical room and mechanical system designs

    The design of HVAC systems for surgical operating rooms requires specific guidance for the design engineer in order to insure that thermal comfort and sepsis control are maintained at all times in order to protect the occupants of the room. Operating room ventilation has been through significant design improvements from the beginning of the 20th century until now. Researchers have found that the ...


    By Inderscience Publishers

  • Hail damage assessment case study

    Service performed: Hail damage assessment Summary: Following a series of hailstorms that occurred in the Midwest U.S., EFI Global engineers quickly responded to conduct hail damage assessments for numerous commercial and residential buildings. Inspections of composition shingle roof coverings to determine the extent of hail damage included the use of random ...


    By EFI Global, Inc.

  • Lethal light

    From radio signals to gamma waves, the electromagnetic spectrum offers considerable potential to prepare and preserve food products. Knowing precisely which wavelength in the spectrum to apply to a particular need is only the first step, however: scientists and engineers also need to fabricate systems that can withstand the rigors of an industrial environment. The application of UVC, short-wave ...


  • Six Ways to Improve Indoor Air Quality Now

    Air quality is an important issue to anyone’s health, and many people don’t realize that their health issues and illnesses could be significantly diminished if their air quality was improved. There is much scientific evidence to suggest that the indoor air can be more polluted than the air outdoors, even in industrialized areas. When people spend eight or more hours a day in the same building, ...

  • California Air Resources Board (CARB) places higher restrictions on air pollution

    As part of the California Global Warming Solutions Act (AB 32) the Air Resources Board (ARB) has approved an early action measure to reduce high-global warming potential (GWP) greenhouse gas (GHGs) emissions by establishing new legislation and defining requirements related to improved monitoring of AC/HVAC systems, enforcement of regulations, reporting of refrigerant usage, and recovery, ...


    By Verisae

  • Operating Room - UVC lights provide infection control, green benefits

    Muskogee Community Hospital (Muskogee, OK) is using germicidal UVC (ultraviolet C) Emitters™ from Steril-Aire as part of an innovative infection control measure. The devices were installed in the air handling units and in custom-designed, ceilingmounted units in the surgical and procedural suites, marking the first time a hospital has used UVC technology in this way. Steril-Aire devices ...


    By E-CO

  • Challenges of Fuel Gas Purification for Cogeneration Under Stringent Regulatory Requirements

    ABSRTRACTInland Empire Utilities Agency (IEUA), a municipal water district based in Chino, CA is currently executing a cogeneration power project, titled Renewable Energy Efficiency Project (REEP) at the Regional Plant No.5 (RP-5), which showcases a variety of innovative technologies for the power production. The project involved many innovative technologies, most of which are still in the ...

  • UVC lights enhance IAQ, reduce AHU operating costs

    Southern California Air Conditioning Distributors (SCACD), the world's largest Carrier distributor, wanted to investigate additional indoor air quality (IAQ) improvement meth- ods in its 30-year-old administra- tive facility located here.  According to Bruce Fuhrmann, com mere iaf manager for SC ACD, he knew from visual inspections that there were typical accumulations of dirt and mold ...


    By E-CO

  • Choosing Data Loggers for Your Green Building Project

    Environmental Construction and Energy Projects Require High-Accuracy Devices The green building industry is growing quickly, and successful projects benefit from assessment and evaluation from start to finish. From hospitals to industrial operations to single-family homes, measurements of conditions such as temperature, solar radiation, and energy consumption are essential to carrying out ...


    By CAS DATALOGGERS

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