Air Conditioning, Ventilation, Heating, Transport Systems, Light, Power, Safety
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  • Introduction to pumping stations
    Packaged pumping stations are installed where the gravity drainage of surface water, wastewater or sewage is not possible. They 'lift' the liquid concerned to the requisite height, either into the drains or a septic tank. For this reason they are also known as lifting stations. Pumping stations typically consist of one or more submersible pumps...
    Guidance, 07 December 2012
  • Introduction to fabric ducting
    Fabric / textile ducting is an alternative to traditional steel or aluminium ductwork. Fabric ducting was developed as a draught-free air distribution system. It suits applications with a hygiene requirement, such as industrial or laboratory environments, or where the indoor air has to be stable, such as sports halls. Permeable duct fabrics can be...
    Guidance, 10 December 2012
  • Introduction to ventilation fans
    Ventilation fans are designed for air supply, air extract or air supply and extract functions. Models are available for a host of applications in the residential, commercial (including IT and telecomms), and industrial sectors. They can be ceiling, duct, roof, wall or floor mounted. Different types include: - Centrifugal fans, which feature a fan...
    Guidance, 10 December 2012
  • Introduction to grease / fat traps and separators
    Grease traps and separators remove fats, oil and grease (FOG) from grey water. They are installed in restaurants, fast food outlets and other commercial kitchens to prevent drainage pipes from becoming blocked. Grease settles at the bottom of the trap, from where, depending on the system, it is either removed by hand or consumed by...
    Guidance, 10 December 2012
  • Introduction to heat exchangers
    Heat exchangers facilitate the transfer of heat from one medium to another, and in the building environment they are typically used in services such as heating, refrigeration / cooling and air conditioning. In process engineering, heat exchangers can be used in power generation, chemical, petrochemical and natural gas processing, and sewage...
    Guidance, 07 December 2012
  • Introduction to burners
    Burners are used to heat water for general hot water supply, central heating or industrial processes. Single-stage burners are suited to smaller applications such as domestic properties or small commercial buildings. In mild conditions, the burner will switch on and off to maintain temperature, which can cause fluctuations and reduce efficiency...
    Guidance, 07 December 2012
  • Introduction to air conditioners
    Air conditioning equipment can form part of HVAC systems in commercial, industrial, leisure and residential settings. Air-con plant may be for cooling only, or provide heating and cooling as required. Comfort air conditioning is used to control temperature and air quality in offices and public buildings, providing a comfortable work environment...
    Guidance, 06 December 2012
  • Introduction to extraction arms
    Dust and fume extraction arms are specified in the manufacturing and industrial sectors to remove harmful materials from the working environment, to protect the health of operatives. The size of the extraction arm will vary on the application: for an automotive production line, a long flexible arm will be required; whereas a desktop laboratory...
    Guidance, 07 December 2012
  • Introduction to humidifiers
    Humidifiers are used to improve dry indoor air conditions that can be created by air conditioning or heating systems. Some provide humidification only, while others offer both cooling and humidification. Isothermal humidifiers use a variety of methods to heat the water to create steam, and require an energy source. Immersed electrode humidifiers...
    Guidance, 07 December 2012
  • Introduction to electrical measurement
    Electrical measurement devices are used to calculate the electrical parameters of a system. Different devices suit different requirements: hand-held electrical testers to check for earth loops and other electrical faults while ensuring compliance with health and safety legislation; meters and analysers for data processing and display; sensors for...
    Guidance, 07 December 2012
  • Introduction to roof ventilation turrets
    Roof ventilation turrets use external wind and temperature to improve indoor air quality (IAQ) as part of a sustainable ventilation system. Unlike mechanical ventilation systems, natural ventilation uses a minimal amount of energy and is subsequently cost-efficient. Natural ventilation systems are becoming increasingly popular in schools and...
    Guidance, 07 December 2012
  • Introduction to radiator valves
    Thermostatic radiator valves (TRV) consist of two parts: a sensor and a valve. The sensor monitors room temperature and adjusts the valve in order to control the flow of hot water to the radiator. If it’s too cold, it increases the flow, and if it’s too hot it shuts it off. Most TRVs are set manually, although they can also be controlled...
    Guidance, 10 December 2012
  • Introduction to convection heaters
    Convection heaters provide warm air heating for expansive industrial and commercial spaces, warehouses and sports halls. Unit heaters are heavy-duty room-sealed fan heaters, which can be floor or wall mounted or suspended from ceilings. Cabinet heaters can incorporate additional ventilation and extraction services. Destratification fans are used...
    Guidance, 07 December 2012
  • Introduction to secure chemical stores
    In an effort to prevent environmental pollution and damage to human health, legal requirements now dictate that hazardous chemicals are kept in secure chemical stores. The government advises that chemical storage areas are secure, away from heavy machinery and vehicles to prevent accidental damage, unlikely to flood, and clearly signposted. The...
    Guidance, 10 December 2012
  • Introduction to smoke / fire / air vents
    Smoke, fire and air vents are used for the extraction and ventilation of air or smoke from a building. They are often referred to as automatic opening ventilators (AOVs). During a fire, they open to vent smoke out of the building and control the spread of fire. They are linked to fire systems, so that they will work automatically if flames or heat...
    Guidance, 07 December 2012