Ventilation Systems Articles

  • Danbroiler in Denmark were convinced that DACS ventilation system was performing best - Danbroiler, Denmark - Case study

    Johannes Kudsk, Operations Manager at Danbroiler in Denmark, produces 3.5 million broilers a year in fifteen sheds. The production is all in/all out resulting in 8.2 crops annually. All managed by Johannes Kudsk and his two employees. The DACS ventilation systems is installed in fourteen of the fifteen sheds. The choice was easy Eight years ago, the time had come to replace the ...


    By DACS A/S

  • Even during the cold period I turn off heating at day 13 - Piljan, Serbia - Case Study

    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 four new houses that he was about to build. Existing houses Mr. Piljan was struggling with the performance of the minimum/medium ventilation system in his existing houses with side wall ...


    By DACS A/S

  • An Introduction to Ventilation Butterfly Valve

    Overview: Ventilation butterfly valve is used in chemical industry, building materials, power plants, glass and other industries in the ventilation, environmental engineering dust or hot air gas pipeline. It acts as a gas medium to regulate and control the flow or shut-off in the pipes. ...


    By Adamant Valves

  • Don’t Skate on Thin Ice - Co Poisoning at Ice Rinks

    If you were asked to name some places where carbon monoxide (CO poisoning) may occur, your first thought may be places like hotels and commercial kitchens, as well as people’s homes. However, CO poisoning can take place in venues you may have not thought of before, like an ice rink. ...


    By Analox Sensor Technology

  • Top five reasons why monitoring the CO2 concentration is a great idea

    CO2 has been a very hot topic for a few years now mainly due to its relation to climate change and also government policy. Leaving this aside, controlling and monitoring indoor levels of carbon dioxide inside building is important for everyone to consider for safety, health and even energy efficiency. Here are 5 reasons why you should by all means measure the CO2 levels in your space. ...

  • Finally - a fan for the 21st century - Case Study

    Travis Luther, owner of Forcefield, designs and builds Advanced Greenhouse Climate Solutions in southern Oregon, USA. He install MagFans in the greenhouses and he is impressed with the powerful, efficient and quiet fan. Production challenges Being in a hot dry climate, we rely on evaporative cooling to keep the temperature from climbing to detrimental levels in the summer. This ...


    By DACS A/S

  • Carbon Monoxide (CO) and Carbon Dioxide (CO2) Safety

    Know the Gases, Know the Dangers and Protect Yourself Do you know the differences between carbon monoxide (CO) and carbon dioxide (CO2)? If you don’t then there are no guarantees your safety measures will be adequate. These two different gases are often mixed up with people becoming confused over which they need to protect against, when and how. ...


    By SHEilds Ltd

  • A Leap in the Dark – Safety Precautions in Confined Spaces

    Considering the Risks, Preparation and Appropriate PPE Mentioning ‘confined spaces’ probably conjures up some fairly potent claustrophobic – and not entirely pleasant – images in the mind for most. However, do you really know what to look out for and how to address the inherent dangers of entering these spaces? Work within a confined space is likely to be ...


    By SHEilds Ltd

  • Antibiotic susceptibility of Legionella strains isolated from public water sources in Macau and Guangzhou

    The purpose of this study was to investigate the susceptibility of waterborne strains of Legionella to eight antimicrobials commonly used in legionellosis therapy. The minimum inhibitory concentrations (MICs) of 66 environmental Legionella strains, isolated from fountains and cooling towers of public facilities (hotels, schools, and shopping malls) in Macau and Guangzhou, ...


    By IWA Publishing

  • Read about Confined Space in Construction and Atmospheric Testing Right Here!

    In 1993, 29 CFR 1910.146 went into effect as the first federal legislation governing entry into permit-required confined spaces in general industry. Because some industries, such as the construction industry, were covered by specific Occupational Safety and Health Administration (OSHA) safety regulations, they were exempt from the confined space entry requirements of the general industry rule. ...


    By Argus-Hazco

  • Case study - Better maintenance starts with better documentation

    OXIDIZER SERVICE SERIES: PART 1 Your oxidizer system is both a significant investment in - and a long term commitment to - environmental compliance. Part of properly servicing your oxidizer system is maintaining the design documentation associated with that system. In the oxidizer design world, National Fire Protection Association (NFPA) standards are often viewed as good practice. However, not ...

  • Empirical validation of a new heat stress index

    Thermal stress is a well-recognised health hazard in the workplace. In addition to the health deficits, working in the heat can impact significantly on the productivity of some industries which are located in harsh environments. A long-standing dilemma in OHS has been the specification of what constitutes a safe working environment. The current indices used to evaluate the environment are either ...


    By Scarlet Tech Ltd.

  • Cereform - case study

    As part of the global AB Maury Group, Cereform is providing a comprehensive range of technical bakery ingredients like dough conditioners and softeners, bread mixes and concentrates, soya flours, cake mixes and concentrates, donut mixes and concentrates and toppings, fillings and icings. During the production of these products they have various dust producing processes. One of the processes ...


    By Western Air Ducts (UK) Ltd.

  • High Tech Research Centre - Case Study

    The UK’s new High Temperature Research Centre (HTRC) has been designed to provide the UK with world-leading R&D capabilities in investment casting – and to tackle the dust extraction and fume extraction challenges these processes involve, both today and in the future, Western Air Ducts has designed and installed a complete, intelligent LEV system. The showcase £60m ...


    By Western Air Ducts (UK) Ltd.

  • How best to solve the IAQ problem in large buildings

    Recently we had the opportunity to present our point of view on how best to solve the IAQ problem in large buildings. We knew it was a long shot that we might gain traction but here was an opportunity to do our best. Thanks to one of our team members who scoured their web site, he found the perfect statement that could validate what we were about to present and put us on their side. What we ...


    By ProMark Associates, Inc.

  • Application of XCMS Online and toxicity bioassays to the study of transformation products of levofloxacin

    We studied the nature and antimicrobial activity of ozonolysis transformation products (OTPs) of levofloxacin (LEV), a frequently detected fluoroquinolone antimicrobial in environmental waters. Two bioassays, the Kirby–Bauer test and the broth microdilution assay, were used to measure changes in the antimicrobial activity of solutions at low LEV to O3 molar ratios (2:1, 2:3 and 1:3) compared ...


    By IWA Publishing

  • 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

  • LEV: What You Need to Know Before Selecting and Installing Dust Control Systems - White Paper

    Many processes in the production of drugs in the pharmaceutical industry produce significant quantities of dust which can cause serious health related problems to workers handling the materials. Additional problems of these operations are the loss of valuable material and the serious risk of cross contamination of drugs. Operations such as scooping, tablet processing, blending, milling, and tray ...


    By Kleissler P C, LLC

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