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Hospital Chemical Storage Ventilation

Hospitals require a number of potentially hazardous chemicals in day to day maintenance, cleaning, sterilisation, testing and operating applications. The health care sector represents one of the largest users of chemicals in the UK. The storage of these chemicals involves a number of considerations in terms of temperature, ignition control, ventilation and segregation. In this article, we focus on chemical storage ventilation. The ventilation of chemical storage areas is of paramount importance to ensure clean air and a safe environment for ...


The Importance of Shipping Warehouse Ventilation

According to energy advisors, warehouses spend on average 15% of their budget on energy bills every year. Mechanical ventilation can contribute to a high percentage of this spend. In this article, we explore the importance of effective warehouse ventilation. Like many hazards, poor ventilation poses a risk to employee health, machines and equipment as well as goods and products. To avoid negative impacts on businesses ventilation hazards must be eliminated. These include a reduction in productivity, a decreased yield, machines or equipment m...


Corrosive Fume Extraction in the Water Treatment Process

To provide water that is safe for human consumption, there are a number of processes that the water treatment industry use. Coagulation and flocculation are often the first steps in water treatment. Chemicals with a positive charge are added to the water. The positive charge of these chemicals neutralises the negative charge of dirt and other dissolved particles in the water. When this occurs, the particles bind with the chemicals and form larger particles, called floc. To separate the floc from the water, it is allowed to settle and fal...


Industrial Fans for Offshore Hazardous Areas

Given the corrosive and potentially hazardous nature of the environment, a number of variables need to be considered when selecting equipment and components for offshore applications. Fans within ventilation systems are no exception and can be found in various areas of an offshore platform, for example, compressor cooling enclosures, production platforms or gas turbine enclosures. These areas present varying degrees of hazard which the offshore fans must be suitable for. Two important variables for consideration include the need for ATEX (n...


Rolling Stock HVAC Case Study

Schaltbau Transportation UK are a mechanical and electrical engineering company that provide a full overhaul package to bring rolling stock HVAC systems and products back to day one condition. Their dedicated HVAC team are available to support all maintenance requirements at their facility in Milton Keynes or via their mobile service team at customers’ sites. They will provide analysis of the systems, make recommendations for improved performance and reliability and will handle obsolescence issues. Schaltbau approached Axair looking for co...


Fans for Spray Booth Extracts

Manufacturers of spray booths need to ensure that they have effective ventilation for two main reasons; to protect spray booth operators by extracting paint fumes and to ensure the best paint finish possible by removing excess particles of the paint spray. During the spray process, paint particles are released into the atmosphere through the spray nozzle which increases the release of potentially hazardous vapours and paint particles. Professional spray paints and lacquers often contain volatile organic compounds which are emitted as gases. ...


ATEX Fume Extraction for Landfill Organic Waste

Landfill gas is a natural byproduct of the decomposition of organic materials which are put into landfill. The gas is composed of roughly 50% methane (CH4) and 50% carbon dioxide (CO2) and a small amount of non-methane organic compounds. Methane is a potent greenhouse gas and is harmful to the environment. When organic waste is first deposited into landfill, it goes through the initial stages of decomposition where small amounts of methane are generated. As the conditions change during the subsequent stages of decomposition, an increase ...


A Sweet Outcome: Stainless Steel ATEX Fan Case Study

Axair were recently tasked with finding an air movement solution for a major producer of throat and cough sweets. The customer, with a site based in the centre of a rural town, employs more than 200 people and was established over 200 years ago. The Problem A review of the company’s manufacturing processes revealed that the method of producing throat lozenges, using a powered starch mold process, has the potential to cause an explosion. Starch powder, like many food based powders used in the food processing industry, has the potentia...


Axair Fans For The Rail Industry & Rolling Stock

Modern rail transport technology has a great demand for high-quality fans worldwide. These specially designed fans are used in underground and suburban railways, regional and high speed trains for the cooling of traction engines, transformers, electronics and air-conditioners. Our fans have successfully been in used in these demanding applications on every for many years and meet the most diverse requirements with regard to mechanical shock, temperature range and power supply. Specific rail fan developments enable smooth operation with: v...


Understanding the Basic Fan Laws

Geoff Edwards, the technical product engineer at Axair Fans UK Limited, explains the three basic fan laws when applied to warehouse ventilation studies. The Fan Laws are a group of useful equations for determining the effects of a change in the speed, the diameter of the fan and the density of air in the system. They are most useful for determining the impact of extrapolating from a known fan performance to a desired performance. So, in short, the basic fan laws are used to express the relationship between fan performance and power. To ...