Features

Indoor air quality/HVAC

Show preview: IFAT 2010 Show preview: IFAT 2010

IFAT has developed into one of the world's leading trade fairs for water, sewage, waste and raw materials management. Due to popular demand, IFAT is switching to a two year cycle, beginning with an exhibition on 13-17 September at the Munich Trade Fair Centre, Germany. Filtration +Separation canvassed some exhibitors to find out what will be on display.
12 August 2010

Air filtration: Innovations in industrial air filtration Air filtration: Innovations in industrial air filtration

Anthony Bennett investigates advances in air filtration technologies for industrial applications, including automotive, dust collection, gas turbine, and HVAC systems.
10 August 2010

Performance assessment: Gas-phase contaminant capture equipment Performance assessment: Gas-phase contaminant capture equipment

Data from existing tests are of little use to HVAC system designers. Paolo Tronville of the Politecnico di Torino and Richard Rivers of EQS Inc. discuss a set of tests which could provide data for rational system design choices.
09 August 2010

Mechanical engineering: The role of filtration in the machinery manufacturing industry Mechanical engineering: The role of filtration in the machinery manufacturing industry

The next in Ken Sutherland's series of articles, on the smaller end-use equipment application sectors, features the use of filtration equipment in the manufacture of machinery, including the production of transport equipment as well as equipment usage in the operation of transport systems. The sector is not actually small in volume terms, but is considered in this series of articles because of its use of only a relatively narrow range of equipment types.
13 July 2010

Ken Sutherland's 'What's new' series on filtration and separation Ken Sutherland's 'What's new' series on filtration and separation

In his series of articles, Ken Sutherland covers new developments in a number of broad classes of filtration and separation.
24 February 2010

Filter testing: Parallel integrity testing of small venting filters Filter testing: Parallel integrity testing of small venting filters

Filter integrity testing is critically important in biopharmaceutical production processes. However, when large numbers of filters need to be tested daily, it can be a time-consuming and costly business. Dr. Jens Meyer of Sartorius Stedim Biotech describes how this situation can be improved by parallel testing.
19 January 2010

Air filtration: Meeting clean air requirements in hospitals Air filtration: Meeting clean air requirements in hospitals

Effective air filtration is highly desirable in hospitals, in particular in areas with critical air quality requirements, such as childrens' wards and Cancer Research Centres. Hospitals are often located in congested urban areas which poses the problem of preventing smoke, diesel and other hydrocarbon emissions from entering the hospital environment. Mycelx undertook studies at a hospital in Georgia, USA to check the effectiveness of its air filtration systems.
08 September 2009

Strategies and technologies: Controlling indoor air quality Strategies and technologies: Controlling indoor air quality

Anthony Bennett looks at the major sources of indoor air quality problems, reviews the regulatory strategies being adopted to mitigate these problems, and examines the technical approaches to abate unacceptable IAQ, particularly those involving filtration.
23 July 2009

Air conditioning systems: Testing air cleaning devices in air conditioning units Air conditioning systems: Testing air cleaning devices in air conditioning units

Is it possible to test air cleaning or disinfection devices used in air conditioning systems? We look at a potential air testing system, and see if it is possible to compare different devices and determine optimum operating conditions for the air cleaning devices.
30 June 2009

Industrial filtration: Secondary aerosol formation in air filtration Industrial filtration: Secondary aerosol formation in air filtration

Hal Alper and H. Parthasarathy from Mycelx Technologies Corporation look at the problem of ‘oily mists' – secondary aerosols found in a range of industries that can significantly decrease air quality and which require specialised filter technology to be removed.
18 March 2009

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