Ventilation Systems Articles

  • Inverness Terrace, Bayswater, Central London - Case Study

    This new built apartment block with 20 luxury flats in Bayswater was completed 2016. Better Planet was contracted to design, supply, install and commission all the under floor heating and MVHR (Mechanical Ventilation and Heat recovery). We were also contracted to install and commission 20 air source heat pumps providing heating and cooling through fan coil units. ...


    By Better Planet

  • 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

  • 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

  • Case study - Odor treatment in a ventilation shaft of a sewage tunnel

    Bioconservacion’s distributor for municipal biogas and odor applications in Turkey, Biotek Ltd, has recently won a tender for Izmir’s municipal authority IZSU to supply equipment and media for odor abatement coming from a ventilation shaft of a sewage tunnel. These shafts, also known as airshafts or vent shafts, are passages used in different applications such as mines ...


    By Bioconservacion SA

  • 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 ...

  • Bernaraby Landfill Power Plant - Case Study

    Clarke Energy has been contracted to supply and deliver one of GE's Jenbacher 1MWe containerised gas engine to LGI (Landfill Gas Industries Pty. Ltd.) for their new landfill gas power station project at Bernaraby, Queensland, Australia which will be operational in 2016. Generation Capacity The high efficiency ...


    By Clarke Energy

  • 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 Inteliair 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 Inteliair Ltd

  • If you can’t stand the CO2, get out of the kitchen – Part 2

    In Part 1 we reviewed the many standards, specifications and technical bulletins on commercial kitchen ventilation that have been published since 2000. In Part 2 we investigate four of the more recent ones, with a particular focus on carbon dioxide (CO2) ...


    By Analox Sensor Technology

  • 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

  • Forensic engineering applied to the analysis of a gas explosion in a residential building

    Present paper deals with the identification of the cause of an explosion in a hollow space positioned below a residential building as the result of welding operations. On field investigation clearly demonstrated that the explosion was due to the ignition of a flammable atmosphere in the basement of the building. Along the trial two hypotheses were brought to the judge: (a) explosion of an ...


    By Inderscience Publishers

  • Numerical simulations of street canyon ventilation and pollutant dispersion

    The relationship among air exchange rate (ACH), pollutant exchange rate (PCH) and friction factor ( f ) is proposed in this study to evaluate the performance of ventilation and pollution removal of hypothetical urban areas. Urban areas were simplified to arrays of idealised, repeated two-dimensional (2D) street canyons of different building-height-to-street-width (aspect) ratios (ARs) and ...


    By Inderscience Publishers

  • Experimental study on flow and ventilation behaviours over idealised urban roughness

    Flows in the urban boundary layer (UBL) are strongly affected by the inhomogeneous roughness elements at the bottom surface. In particular, in the near-ground region (roughness sublayer), the effect of the surface roughness dominates that complicates the behaviours of mean flow and turbulence and subsequently the near-wall transport processes. To safeguard the health of urban inhabitants, it is ...


    By Inderscience Publishers

  • Plumbers & Pipe Fitters 853 case study

    Sprinkler & Fire Protection Training Facility The Problem Local Union 853- Sprinkler Fitters of Ontario called on DiversiTech to provide ventilation for their new Sprinkler and Fire Protection Trade Centre and Training Facility. The Solution Two guidelines were presented for consideration before unit selection was made. The school did not want to ...


    By DiversiTech

  • 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

  • Dry Ice –Carbon Dioxide: Where is it being used and how to handle safely?

    Carbon dioxide, in its solid form, is colder than ice.  It is so cold, in fact, that handling it without protection can cause frostbite.  It does not melt, but instead dissipates into a gas that can be dangerous to breathe.  This substance is called dry ice, and, when handled properly, has many useful applications. The most practical use of dry ice is to keep things cold. It can be ...

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