EDITOR’S CHOICE AIR CONDITIONING ENHANCED AIR WITH HIGH PURITY OXYGEN GENERATORS T
he latest Oxygen (O2) Generators available from Hi-line Industries can remove nitrogen
from a compressed airline stream to provide air supplies with a range of enhanced oxygen content levels up to 98.5% purity. Normal, dry atmospheric air comprises approximately 78% nitrogen by volume, made up with 21% oxygen and the remaining balance incorporating argon, water vapour, carbon dioxide and other minor trace gases. The increasing reduction of the nitrogen content from compressed air therefore leaves the residual gas with highly enhanced Oxygen content. The separation of gases is achieved by forcing compressed air through a separation column containing a highly selective Zeolite sieve which adsorbs a large percentage of the nitrogen content in the air. This leaves the residual air that has passed through the separation process with appropriate enhanced levels of O2 content. A Pressure Swing Absorption (PSA) process is utilised for the twin-column process, so that when the on- line column is saturated with nitrogen, an automatic changeover to the second column
generators allows the installation of multiple parallel units according to application requirements.
The uses of oxygen produced in this process
are many and varied, including the oxygenation of Bio-Mass systems to enhance burn performance. Such oxygen is also introduced into the water at fish farms. This enables stocking densities to be increased, with the fish stock being healthier and having a better taste resulting from oxygen rich environment. Such oxygen can also be utilised for the
of Zeolite processing is undertaken. With 180° phase delay between cycles, a continuous output of highly oxygenated air is maintained. With purities of up to 98.5% of O2, oxygen generators can be connected to an external buffer tank or tanks to accommodate delays or variations in production/consumption. The modular philosophy of the Hi-line Oxygen
Hi-line Industries
www.hilineindustries.com 01283 533377
leak testing of automotive air conditioning units, or as air cleaners for Ozone generators. Oxygen generators can also help maintain the supply of this important commodity which, as one of the most basic resources that exist, is widely utilised throughout hospitals for the treatment of acute respiratory infections, asthma, fatal asphyxia and as shock treatments to save patients lives. A total of fifteen O2 Generator models are
available covering oxygen flows from 0.125 up to 120.18 Nm3/h, depending upon the oxygen percentage levels required.
FM SERVICE HELPS COMPANIES ACHIEVE ENERGY EFFICIENCY TARGETS T
o assist Facilities Management companies to reach their customers’
energy efficiency targets, Excalibur Energy, a specialists in optimising energy efficiency and resilience for air- conditioning, critical cooling and refrigeration systems, has announced its new FM 360 degree service. The service is designed to ensure FM companies can pro-actively reduce their customers’ carbon emissions by identifying the best economic energy efficiency projects to implement and unviable ones to avoid. Excalibur Energy has a strong track
record in improving cooling efficiency and overcoming resilience issues, often reducing energy consumption by 30%. As part of the new 360 degree service, the company will estimate potential energy savings that could be achieved through retrofit solutions, and present technical information clearly for FM companies to insert into their own reports; advise when savings are not
economically viable and, using their 30 years’ experience, accurately predict ROI. This report can be utilised within an ESOS energy audit as a means to identify projects to improve air conditioning efficiency. The full service comprises advice on equipment that is likely to be cost effective; identification of maintenance issues that may affect efficiency; undertaking an initial desktop survey to provide a proposal with a budget price and potential cost reduction. If economical, Excalibur will visit the site to provide a full fixed price proposal,
Excalibur Energy
www.excaliburenergy.co.uk 01980 626490 30 AUTUMN 2015 | ENERGY MANAGEMENT / ENERGYMANAGEMENT
to include equipment specification, accurate energy analysis showing existing energy consumption and projected energy reduction. The resulting report will identify if there is a major opportunity to reduce energy consumption and the return on investment to achieve it. The full service requires a survey questionnaire to be completed, the company will then undertake an initial desktop study to provide a budget proposal and energy analysis identifying the potential cost reduction. If implemented, the company will then be
able to perform pre and post monitoring to validate the energy reduction, installation will be delivered by the company’s fully qualified staff including training, warranties and all necessary certification. Gareth Holden, MD of Excalibur Energy says: “Given the results we’ve seen and the feedback received, we believe we can add real value to help facilities managers reduce both their clients’ energy spend and carbon emissions.”
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