Ventilation Systems Articles

  • Reducing Downtime for a Consumer Electronics Manufacturer

    Matrix® AP Harmonic Filters provided the necessary solution for reducing harmonics to stablize operations and increase efficiency. Good quality power can make a significant difference for many manufacturing plants such as those that build consumer electronics. Variable Frequency Drives (VFDs) are often used to control the water and ventilation systems for these ...


    By MTE Corporation

  • 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. ...

  • 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.

  • 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

  • Modelling and simulation of containment retention factor for can-type containment

    Severe accidents cause the failure of fission product barriers and allow the fission products to escape into the environment. The containment is the last barrier for fission products. Thus, containment spray system, heat removal system, recirculation filtration system, Containment Filtered Venting System (CFVS) and containment exhaust filtration system are installed in the containment to ...


    By Inderscience Publishers

  • CFD modelling of nitrogen injection in a longwall gob area

    This paper describes computational fluid dynamics (CFD) simulations conducted to investigate the effectiveness of N2 injection in an active panel and a sealed longwall gob area to prevent and suppress spontaneous heating of coal using various injection locations and flow rates. In the active panel simulations, a single longwall panel with a bleederless ventilation system was ...


    By Inderscience Publishers

  • Gas Monitoring for Ventilation Control and Energy Management

    The growing demand for underground and enclosed parking and maintenance garages (resulting from limitations on land availability) has increased the awareness and need for proper ventilation and control systems. In addition, increased health and safety programs have only added to the concerns of toxic and combustible gases in confined or enclosed spaces. Historically, ventilation and make-up air ...


    By Arjay Engineering Ltd.

  • LonWorks delivers savings on sunset Blvd case study

    The Building The Sunset Millennium building is in the heart of the renowned, billboard saturated, Sunset Blvd nucleus of trendy restaurants and exclusive nightclubs. The lower levels of the building house a 4 story underground parking garage that can hold up to 1000 vehicles. The garage sees traffic 24 hours a day, 7 day a week. Issue When the building was ...

  • Butterfield Business Park

    Design and installation of mechanical, electrical and public health services a new business village, this project was the first office development in the UK to incorporate a passive heating and cooling ventilation system utilising earth ...


    By Royal Imtech N.V

  • Computational fluid dynamics modelling of UR–UVGI lamp effectiveness to promote disinfection of airborne microorganisms

    This paper focuses on using computational fluid dynamics (CFD) modelling methods to study the effectiveness of upper–room ultraviolet germicidal irradiation (UR–UVGI) lamps in healthcare facilities. This work develops and uses simplifications for boundary conditions in CFD, while details of UR–UVGI lamps and microorganism characteristics were obtained from existing experimental ...


    By Inderscience Publishers

  • 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

  • UVC helps cut heating costs in jails

    If you think it’s hard to get HVAC money for schools and similar public buildings, there is a harder nut to crack: correctional facilities. It can be even more difficult to get additional funds appropriated to improve conditions in buildings where people are incarcerated. Compounding the problem, many correctional facility employees are in close proximity with the inmate community daily. ...


    By E-CO

  • Identification for process control and bioengineering: open loop frequency domain estimation

    A previous paper has outlined a novel method for estimation of the parameters (including the time delay) of a general Single Input, Single Output (SISO) process model from an appropriate number of arbitrarily specified points on the process frequency response. The method involved combining an analytical approach with a least squares approach using a gradient algorithm, to provide accurate ...


    By Inderscience Publishers

  • Two approaches to effective ventilation system design for the biomedical device and pharmaceutical industries

    This paper provides two alternative solutions to the difficult task of providing adequate ventilation to operations found in the biomedical device and pharmaceutical manufacturing industries. The first approach involves a two-tier strategy that includes an isolation chamber and an appropriately designed local exhaust hood. The second approach involves the design of modular, walk-in hood. ...


    By Inderscience Publishers

  • A new exhaust ventilation system design software

    By industries development, the amount of air contaminants that are released in workplace has grown increasingly. To reduce these contaminants, there are several methods that, one of which is control at source. Industrial ventilation is perhaps the most powerful tool available for environmental professionals to control workplace pollution. Exhaust ventilation can capture contaminants at source, ...


    By University of Tehran

  • The integrated effect of medical lamp position and diffuser discharge velocity on ultra-clean ventilation performance in an operating theatre

    AbstractThe ventilation system of an operating theatre (OT) in a hospital needs to provide a comfortable and healthy surgical environment, particularly to minimise the risk of airborne infection. Engineering standards are available to outline specialised ventilation design and installation requirements based on knowledge accumulated from quality research and day-to-day practices. In this paper, ...


    By SAGE Publications

  • Exergy method of optimisation of a wavy plate indirect evaporative cooler

    The present paper deals with the performance optimisation of a wavy plate surface of indirect evaporative coolers with cooling capacities of 10, 25, 45 kW. Based on the minimum entropy generation rate and by applying a number of geometrical constraints, as well as using a search method, the optimum apparatus's dimensions and the secondary air discharge and the primary air mass flow rates are ...


    By Inderscience Publishers

  • Copper Electrowinning in the Absence of Acid Mist: Six Years of Industrial Application

    Acid Mist Capture - Abstract with details about this technology fully developed by SAME. This paper reviews the fundamentals of a state – of – the art tankhouse ventilation system where acid mist captured at the source is further treated through high efficiency scrubbers allowing the releasing of clean and dry air to the ambient. Results obtained at plants show that acid mist concentration ...

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