demand controlled ventilation Articles

  • 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.

  • Ventilation/filtration system is main heat source

    The challenge K.S. Smede og Montage, a smith’s working-place, was about to expand their business and move to new premises. As they were expanding, K.S. Smede og Montage took this opportunity to purchase a new ventilation/filtration system to extract welding fumes and grinding dust more effective. One of the ...


    By Plymovent Group BV

  • Reduction of ammonia emissions during composting by Uncoupling of oxygen demand and heat removal

    Intensive pig production systems result in high emissions of ammonia, odour and greenhouse-gases (methane and laughing gas) by exhaust ventilation air. Moreover, large amounts of manure (faeces and urine) are produced with insufficient nearby land for applications (Imbeath, 1998). These outputs lead to environmental problems related to ...


    By ORBIT e.V.

  • Putting infection control into practice in the workplace

    Healthcare workers are, like patients, subject to illness from a variety of airborne pathogens common to hospital settings. This risk increases during construction and renovation, as these endeavors release dust as well as disease-inducing microbes into the surrounding environment. Since more than one in five workplace illnesses in private industry occur in a hospital setting , hospitals ...

  • Intellisenc Building Air Quality Controllers control CO2, CO, VOC, O3, Humidity and temerpature.

    The quality of the air we breathe indoor (Indoor Air Quality, IAQ) is typically defined by the air chemical or gas composition and particulates. The sensors available today for sensing the gas composition of IAQ have many features and options. There is a wide application base for IAQ sensing with the most common being the regulation of HVAC ventilation systems for lower energy cost. Using an IAQ ...


  • Add To Your Revenue By Adding Bird Control

    As a contractor, you've learned that one of the best ways to increase revenue is to increase the number of services you offer your customers. And one of the most revenue enhancing services you can offer today is bird proofing. Regardless of the size or type of building, and no matter what the job, bird proofing is a vital part of protecting any building or structure from the damages imposed by ...


    By Bird-B-Gone, Inc.

  • Application of an optimal predictive controller for a small water distribution network in Luxembourg

    This paper deals with predictive control applied to the management of water storage in a small water distribution network. This online optimisation-based strategy is computed iteratively by solving a set of mathematical equations which describe the operative goals, in a given time horizon, and uses a representative model for the network dynamics as well as a demand forecast. The approach has ...


    By IWA Publishing

  • What makes an effective odor control cover system design?

    Background A common side effect of wastewater treatment processes is the unpleasant odor that can linger near the plant, annoying neighbors, who then complain. Often, the wastewater treatment plant was built many years ago in an isolated part of town.  Over the years, the town’s population grew until subdivisions were developed next to the treatment plant.   ...

  • CO2 vs. VOC Sensors for IAQ - What`s the Difference

    People sometimes ask about the differences between VOC (Volatile Organic Compounds) sensors and CO2 sensors. While both can be used to measure indoor air quality (IAQ), these sensors are not interchangeable. They measure very different things. CO2 sensing technology by IR (infrared) is stable and is not subject to the short-term, random drift found in air quality sensors. Most IR carbon ...


    By CO2 Meter, Inc.

  • Environmental and Occupational Health Response to SARS, Taiwan, 2003

    Industrial hygiene specialists from the National Institute for Occupational Safety and Health (NIOSH) visited hospitals and medical centers throughout Taiwan. They assisted with designing and evaluating ventilation modifications for infection control, developed guidelines for converting hospital rooms into SARS patient isolation rooms, prepared designs for the rapid conversion of a vacated ...


    By E-CO

  • Gas Detection and Monitoring Systems

    In greenhouse applications, the accurate measurement of a number of environmental parameters such as carbon dioxide concentration, temperature, light intensity, water, humidity, pH and nutrient levels using sophisticated sensors is used to create a controlled environment for optimising plant growth rates while minimising energy usage. Carbon dioxide concentration is also one of the best ...


    By Edinburgh Instruments Ltd

  • If you can`t stand the CO2, get out of the kitchen - part 1

    There are two potentially dangerous types of gas in a commercial kitchen: 1) the flammable ones used for cooking (e.g. methane/natural gas; propane/liquefied petroleum gas); and 2) the noxious, gaseous products of combustion such as carbon monoxide, carbon dioxide and hydrocarbons. It would be good to know how to avoid them. But a search for advice on kitchen ventilation threatens to drown the ...


    By Analox Sensor Technology

  • Comfort and safety

    Type HOFGAS® - Ready/C 300  Commissioning 2004Site Moncorneil (FR) Situation Moncorneil is a medium-sized landfill near Toulouse. A heating boiler is to be operated with landfill gas and the acquired heat is used for leachate treatment. In view of the complete landfill design the customer demands a container construction with remote monitoring of the plant.   ...


    By Hofstetter BV

  • 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

  • Cleaner Production in the Mining Industry: Mount Isa Mines

    MIM Holdings Limited has implemented a program of innovations which has enabled the company to open a new mine and add new electricity-using activities while cutting total annual electricity use and carbon dioxide emissions. MIM has committed to the Australian Governmentís Greenhouse Challenge. This Federal and State Government sponsored initiative requires companies to reduce emissions of carbon ...


  • WPL supplies Farne Salmon and Trout with a substantial new effluent treatment plant case study

    A new effluent treatment plant designed by WPL is ensuring that Farne Salmon and Trout Ltd in Berwickshire - one of Europe's largest smoked salmon facilities - complies with tighter local trade effluent discharge regulations, whilst significantly reducing its sewer discharge costs. WPL worked with Farne and Scottish Water from an early stage to design ...


    By WPL Ltd

  • Composting of a mixture of orange and cotton Industrial wastes and the influence of adding olivemill Wastewater

    The rapid expansion of the agro-industry during recent decades has led to the increasing production of organic wastes. Some such agroindustrial wastes are olive mill wastewater (OMW), the waste from orange juice extraction (OW) and the waste from cotton gins (CW). The OMW resulting from olive oil production contains olive pulp, mucilage, pectin, oil, the vegetable water of the fruit and the water ...


    By ORBIT e.V.

  • WPL supplies Farne Salmon and Trout with a substantial new effluent treatment plant

    A new effluent treatment plant designed by WPL is ensuring that Farne Salmon and Trout Ltd in Berwickshire - one of Europe's largest smoked salmon facilities - complies with tighter local trade effluent discharge regulations, whilst significantly reducing its sewer discharge costs. WPL worked with Farne and Scottish Water from an early stage to design and supply a substantial, energy efficient ...


    By WPL Ltd

  • AERZEN is helping a WWTP to reduce its energy usage

    Intelligent air supply for wastewater treatment plants The wastewater treatment plant at Rheda-Wiedenbrück is currently testing a brandnew control concept for AERZEN blower technology - the AERsmart control combination. Modernisation work at the wastewater plant began in 2013. The citizens of the Rheda-Wiedenbrück region, as well ...

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