Case studies

The Royal Air Force Museum in Cosford Shropshire, offers the ability to see and touch over 70 aircraft of international importance. Housed in wartime hangers, some of the most iconic Second World War aircraft, such as the Spitfire, are lovingly preserved for the public to view.

A potential major problem is that rust can occur in areas of high relative humidity. To ensure that high risk areas are constantly kept within targeted levels of humidity, the trustees of the Royal Air Force Museum purchased:

  • A DryAir 300
  • Two DryAir 5000

The machines are now located within a Hawker Siddeley Nimrod, a large maritme patrol aircraft and a Lockheed C-130 Hercules, a four engine  turboprop transport aircraft.

The third machine is situated in the main workshop where new arrivals are assessed and overhauled, and prepared for showing in the main museum area.

Friday, 31 July 2015

Rolls Royce Motors

The name ‘Rolls Royce’ evokes an image of quality and luxury. The finish and appearance of high luxury Rolls Royce cars is a very high priority in the manufacturing cycle.

When assessing the ability to achieve constant superior quality spray finishes, high on the engineering teams requirements was constant atmospheric conditions. Prime concern was temperature control and humidity within the spray area.

Following design meetings with Desiccant, Rolls Royce purchased and installed an Adiabatic Humidifier.


Desiccant DryAir was approached by Springfield Fuels Ltd to help resolve a process difficulty that was resulting in high labour costs and inefficiencies.

A reprocessing system produced, on a continuous basis, effluent containing a high percentage of uranium, and other contaminated solids. The existing method of solid removal used conventional centrifuge separators. This was considered inefficient resulting in high labour and maintenance costs. Nuclear industry regulations required the level of solids to be reduced below 20 parts per million. The remaining liquid was then considered safe to discharge.

Consultation with Springfield and field trials at their reprocessing facility resulted in Desiccant developing and producing the Effluent Reprocessing System (ERS), which in production resulted in:

  • a 10 times increase in material processed per hour
  • significant reduction in levels of contaminated solid
  • a liquid with high clarity levels
  • the processed water was tested hourly at 1ppm
  • the systems reliability allows continuous operation, 24 hours per day, 365 days a year
  • autofill system means no manual input, and the system can run continuously with no staff requirements

The ERS process is based on principles of evaporation resulting in a compact system with very limited number of operating parts giving –

  • exceptionally low maintenance
  • PLC controllability allowing fully automated distant monitoring and control
  • Main components have an expected service life in excess of 15 years
  • Lower labour costs, and an increase in product quantity and quality.

The equipment has now been in operation for 5 years working continuous 24/7 shift patterns to high specification levels.

Friday, 31 July 2015

Qatar World Cup Bid 2022

The Qatari government has become the first country in the region to host a major football tournament. As the tournament was due to take place in June/July high temperatures were a major concern for both players and spectators. The daytime high can be up to 50degC. The average daily lows do not drop below 30degC. A stadium incorporating a controlled temperature system was the answer to the problem.

A 2000 seat showcase stadium has been constructed in Doha to prove innovative cooling technologies. Desiccant DryAir working with the main contractor, designed, manufactured and installed various mechanical systems incorporated into the zero carbon footprint of the project:

  • An innovative 3.5 metre twin desiccant wheel cooling system.
  • High temperature hot water pressurization system element of the parabolic solar farm system.
  • Hot water energy storage system to store energy from the solar farm.

The system can store enough energy to provide cooling for 10 hours, plenty of time for a match to be played even if extra-time or a penalty shoot-out is required. A FIFADelegation visit, noted that the outside temperature was 44degC but a pleasant 23degC on the pitch. On non match days the solar farm channels electricity into Qatars national grid. This offsets the stadiums match day needs for lighting, turnstiles, scoreboards and everything else that makes up a modern sports stadium.

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