Laboratory Air Articles

  • ANSI/AHRI standard 420-2008 for fan and coil evaporators - benefits and costs

    Abstract Fan and coil evaporators as used in the industrial refrigeration industry can be certified for performance per ANSI/AHRI Standard 420-2008, Performance Rating of Forced-Circulation Free-Delivery Unit Coolers for Refrigeration. This paper will explain how the standard works and illustrate the costs related to evaporators that may not meet the performance criteria of the standard. ...


    By Evapco Inc.

  • Laboratory test report - the effect of scale formation on heat transfer coils

    Background EVAPCO, Inc. recently introduced new Evaporative Condensers and Closed Circuit Coolers which utilize extended surface coils. For decades extended “fin” surfaces have been used on heat transfer coils, often referred to as “finned coils” primarily in an effort to increase dry capacity. However, in the past the fin material was limited to carbon steel tubes ...


    By Evapco Inc.

  • Optimising laboratory environment for successful IVF

    The London Women’s Clinic in Cardiff (LWC Wales) is one of ten clinics within its group which collectively provide expert fertility treatment to families across England and Wales. When it comes to IVF and fertility treatment there is no ‘off-the-shelf’ or ‘one size fits all’ solution and, as such, the medical teams produce a bespoke fertility programme for each and ...


    By Geotech

  • What is Indoor Air Quality?

    Indoor Air Quality (IAQ) refers to the degree of air purity inside buildings that constitute the usual environment in which people carry out activities (offices, homes, schools, shopping and leisure centres, etc.) Because of increasing urbanisation and our contemporary lifestyle, most people spend a large proportion of their time in these closed environments. The high level of atmospheric ...


    By Bioconservacion SA

  • All in One Unit for GC Applications

    Leman Instruments is a leading European company, specialised in standard products, OEMs and in custom designed realisations involving high purity H2, N2, zero air, combined solutions for FIDs, GCs, purge air generators, CH4 & CO2 scrubbers, N2 and multigas for LCMS with high level of communications involving Ethernet, USB, RS 485 and ...


    By Leman Instruments SAS

  • Perfectly clean water without the use of chemicals - Case Study

    Showers in indoor swimming pool was legionella-free without dangerous chemicals In the spring of 2012 dangerous legionella bacteria outbreak was found in the shower installation in Osby swimming hall in Sweden. Now the shower installation is completely legionella free, and secure the visitors against future outbreaks, by using a harmless and biodegradable liquid NEUTHOX. Each ...

  • Air Conditioning That`s Out of This World

    New materials enhance the cooling effects from outer space to reduce energy use in small- to medium-sized buildings Reducing air conditioning energy use by using new materials to enhance the cooling effects from outer space may not be such a far-out idea. In a simulation study using DOE's Energy Plus software and ...


    By US Department of Energy

  • Optimising laboratory environment for successful IVF outcomes with Geotech’s G100

    The accuracy of incubator gases within an IVF laboratory plays a major role in success of IVF programs in any fertility clinic today. Given the crucial role that the incubator plays in the IVF process, the conditions within the incubator in an IVF laboratory must be optimal at all times to increase the likelihood of a successful assisted reproductive treatment. Geotech’s ...


    By Geotech

  • The Path to Safety for Pharmaceutical and Laboratories: Why O2 Deficiency Monitors May be Required?

    To safeguard against gas leaks in pharmaceutical industries and laboratories, businesses are turning to oxygen deficiency monitors. Learn when, where, and why an oxygen monitor or O2 monitor may be required.  Oxygen Monitors in Medical and Pharmaceutical Settings In the hospital setting, nitrogen gas is ...

  • How to Get Higher Acceptable Indoor Air Quality Anywhere

    The quality of the indoor air we breathe is a concern for everyone, especially those in urban environments where contaminant and particle levels are higher due to nearly constant exposure to things like automobile and truck exhausts, construction, and fumigation. Unfortunately for most people, when it comes to the quality of the air in the buildings where they spend most of their time, ...


    By Camfil Ltd

  • Forward osmosis membrane fouling and cleaning for wastewater reuse

    Membrane fouling properties and different physical cleaning methods for forward osmosis (FO) and reverse osmosis (RO) laboratory-scale filtration systems were investigated. The membrane fouling, with respect to flux reduction, was lower in FO than in RO when testing an activated sludge effluent. Cross-flow velocity, air-scouring, osmotic backwashing and effect of a spacer were compared to ...


    By IWA Publishing

  • Dropshaft cascades in urban drainage systems

    Dropshaft cascades are typical elements of sewer systems in steep urban catchment basins. The design of a dropshaft cascade, which is generally addressed as an optimization problem, also needs to consider the subsequent effects induced on the flow by the different elements of the cascade. Experimental research has been performed at the hydraulic engineering laboratory of the University of ...


    By IWA Publishing

  • Explaining vehicle emissions – why do laboratory and road measurements differ?

    The road transport sector is a major contributor to Europe’s emissions of greenhouse gases and air pollution. For certain pollutants, vehicles can emit substantially higher emissions on the road than official emissions tested in laboratories. A report released today by the European Environment Agency (EEA) provides a non-technical guide that describes the reasons for these often significant ...


    By European Commission

  • Air Force Welcomes Comments On Red Rock Biofuels Facility Environmental Assessment

    The U.S. Air Force (USAF) Research Laboratory has developed a Draft Environmental Assessment and a Draft Finding of No Significant Impact (FONSI) for the development of the Red Rock Biofuels facility in Lake County, Oregon. The proposed facility is one of three projects awarded a contract under the U.S. Department of ...


    By Bergeson & Campbell, P.C.

  • Air pollution – the invisible roadside killer

    The VW emissions scandal has helped to raise awareness of the deadly threat posed by air pollution in many of our towns and cities. In the following article, Jim Mills, Managing Director of Air Monitors, an instrumentation company, explains why diesel emissions will have to be lowered and how the latest monitoring technology will be an essential part of the solution. ...


    By Air Monitors Ltd.

  • Study: Stem Cells and Air Quality

    A recent study conducted by researchers at the State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences China, Chinese Academy of Sciences (CAS), and the University of California at San Diego (UCSD) were successful in using stem cells to determine the amount of BPA that caused physiological toxic effects.  The group of ...


    By Ormantine USA Ltd., Inc.

  • Impact of withering process on sensory properties of black tea

    Withering is the first step in tea processing and has a significant impact on final product quality. During the tea green leaf withering and its preparation for the next stage of processing (curling), reduction in moisture content of the leaf is accompanied by occurrence of biochemical interactions that play an important role in product quality; its aroma in particular. Air flow rate and ...

  • California air resources board held a workshop on the low carbon fuel standard

    On April 3, 2015, the California Air Resources Board (CARB) held a Public Workshop to discuss updates to the California-Modified Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation (CA-GREET) Model, version 2.0, under the Low Carbon Fuel Standard (LCFS). The update ...


    By Bergeson & Campbell, P.C.

  • Impact of sunlight/dark storage on natural spring water bottled in polyethylene terephthalate

    The effect of two environmental variables, ultraviolet radiation and external air temperature, on polyethylene terephthalate (PET) bottled water was investigated over 100 days. The high pressure liquid chromatography results showed the migration of carbonyl compounds (acetaldehyde, formaldehyde and acetone) from PET bottles into water over 3 months. Storage of PET bottled water enhanced the ...


    By IWA Publishing

  • 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

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you