HVAC Articles

  • Easy Access to Savings on Board Ships - Case Study

    Grindrod Shipping, owner and manager of IVS and Unicorn Tankers, has installed OptiSaveTM on board 9 vessels; 7 bulk carriers and 2 tankers and more will follow. The co-operation with IVS goes back to 2009 and the first OptiSaveTM system was installed on board one of the bulk carriers soon after. “We have a great co-operation with DESMI and ...


    By DESMI A/S

  • Case study - Even during the cold period I turn off heating at day 13!

    Two years ago Mr. Piljan from Boljevci in Serbia bought a DACS ventilation system for one of his existing 4 houses. The aim was to find out which ventilation system to choose for his new houses that he was about to build. - I cannot say that I was dissatisfied as such with the existing ventilation system as what I had was a system similar to that of all my colleagues: minimum/medium ventilation ...


    By DACS A/S

  • BACnet Interface for VFD Drive in HVAC

    Area of engagement Enable BACnet MS/TP support for VFD Drive in HVAC Solution The Client Leading OEM of AC Drives, Machine controllers, Robotics, Automation systems Overview Client was looking for a solution to enable BACnet MS/TP interface for its VFD drive in HVAC system. In addition, client also wanted support in ...


    By SoftDEL Systems

  • 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

  • Advice from HVAC experts!

    HVAC systems (cooling and heating) can use 60-70% of the overall energy in your facility. Proper maintenance is one of the key recommendations for maintaining your system’s performance. To really help extend the life of your system, it could be something as simple as changing and cleaning the filters regularly. If you have a ...

  • Can low-income housing be energy efficient and affordable?

    Residents of low-income housing need energy efficiency more than others, but are less likely to be able to afford it. How to escape the Catch-22? In Ann Arbor, Michigan, the local housing commission is completing floor-by-floor renovations in the five-story Baker Commons public housing ...


    By Ensia

  • Confused about Carbon Monoxide and Ventilation?

    How does it affect you, the Building Owner and HVAC Contractor? There has been a lot of press regarding Carbon Monoxide Detectors (CO) and Smoke Detectors in the news over the past year. In most cases, this is justified and certainly the attention and awareness is important. As a contractor though, how does this affect you and the HVAC market place? It’s important to understand the ...


    By Arjay Engineering Ltd.

  • Case study - Multi-tenant building energy efficiency

    Buildings accounted for roughly 40% of total U.S. energy consumption in 2010, according to the United States Energy Information Association. “[New York] City's roughly 1 million buildings cost $15 billion a year to power and heat and account for 80% of the city's greenhouse gas emissions”(1). The proliferation of smart energy devices and building management systems will result in the ...


    By Powerhouse Dynamics

  • Case study - At Bertucci`s, SiteSage pays for itself in under 1 year

    Challenge: Get energy costs under control Locations: 3-store Pilot, followed by 10 more locations; planned rollout at all 89 locations Scope: HVAC control & management, equipment performance monitoring & diagnostics, food safety monitoring Results: 12% electricity use reduction, 8% gas use reduction, 11 month payback In 2013, Bertucci’s, a Massachusetts-based operator of 89 ...


    By Powerhouse Dynamics

  • Case study - Arby`s energy management and food safety

    Challenge: Get energy costs under control Locations: ≈900 company-owned restaurants Scope: HVAC control & management, food safety monitoring Time to deploy: Five months Results: 7.6% aggregate energy savings reported by Arby’s In 2012 Arby’s, a leading global quick-service restaurant company, decided to deploy remotely controlled thermostats across its ...


    By Powerhouse Dynamics

  • The mills grind efficiently

    The – “Milser Mühle“ – has relied on AERZEN for 50 years When the Borgstedt Family took over the Milser Mühle 130 years ago, at first, it only produced feed material, and then, from 1918, it started to produce flour for human food. “Therefore we selected oilfree compressing AERZEN Positive Displacement Blowers of series GM as conveying air producer ...

  • Methane emissions and airflow patterns along longwall faces and through bleeder ventilation systems

    The National Institute for Occupational Safety and Health (NIOSH) conducted an investigation of longwall face and bleeder ventilation systems using tracer gas experiments and computer network ventilation. The condition of gateroad entries, along with the caved materials permeability and porosity changes as the longwall face advances, determine the resistance of the airflow pathways within the ...


    By Inderscience Publishers

  • FEMP Publishes Aspinall Courthouse - Case Study

    The Federal Energy Management Program (FEMP) announces the publication of Aspinall Courthouse: GSA’s Historic Preservation and Net-Zero Renovation. This case study documents the effort of the U.S. General Services ...


    By US Department of Energy

  • How Downdraft Tables Change Your Work Environment

    Working with metal and wood results in the release of harmful dust particles into the atmosphere, which is dangerous to the workers’ health. Continuous exposure to these particles means your employees will be breathing in the dust, which can lead to both short and long term health problems. In order to maintain the health and safety of your employees in the workplace, downdraft tables must ...


    By ProVent, LLC

  • Energy efficiency: la Compagnie des Fromages counts on innovation with Emerson technologies

    The subsidiary of the Bongrain Group is pursuing a policy to reduce its energy usage and CO2 emissions by investing in a facility designed by Cofely Axima, a leader in industrial refrigeration and a subsidiary of GDF Suez. This solution stands out for its use of a process that heats and cools within a single cycle and its use of key components supplied by the Emerson Group – a Vilter ...

  • Confused about Carbon Monoxide and Ventilation?

    There has been a lot of press regarding Carbon Monoxide Detectors (CO) and Smoke Detectors in the news over the past year. In most cases, this is justified and certainly the attention and awareness is important. As a contractor though, how does this affect you and the HVAC market place? It’s important to understand the difference between private residential monitoring for personal safety ...


    By Arjay Engineering Ltd.

  • Enerit to enable Rome and Milan airports to reduce overall energy usage case study

    Enerit have partnered with a number of Europe-wide energy specialists within theCASCADE project for energy efficient airports. CASCADE, led by the prestigious Fraunhofer Institute, Europe’s largest application-oriented research organization, provides a number of technology-based solutions for airports to reduce energy ...


    By Enerit Ltd

  • Fuel Oil Spill during maintenance in Ohio

    During replacement of oil furnace by an HVAC contractor in Ohio, there was an accidental release of almost 250 gallons of No. 2 heating oil in the basement. The oil seeped below the concrete surface and the smell of heating oil fumes was so strong that the home owner was advised to relocate in a hotel to prevent chemical burn of throat tissues. Environment company in charge of the cleanup removed ...


    By Sarva Bio Remed, LLC

  • ENER-G shows how going green keeps business finances in the black

    Austerity is good for business at energy management and clean technology business ENER-G At a time when businesses are hanging onto the pennies and reluctant to borrow, ENER-G is providing cash strapped organisations with free energy saving technologies - paid for via tomorrow's energy savings. This is a win-win business model ...


    By ENER-G

  • Energy Efficiency prospects: What to watch

    Events unfolding in two US Northeast states – New York and Massachusetts – signal increased business opportunity for energy efficiency companies, green architects, lighting contractors, smart grid innovators and others in the business of saving energy. First, the energy efficiency world should keep an eye on debate over the possible shutdown of the Indian Point nuclear power plant in ...

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