ENERGY KEEPING TYSELEY ON TRACK
ELGA Process Water is helping Veolia Environmental Services maximise boiler efficiency at a major energy recovery facility
W
hen Veolia Environmental Services required a specialist conditioning chemical supplier
for the boiler water at its Tyseley Energy Recovery Facility it turned to ELGA Process Water for help. The Tyseley plant incinerates 350,000 tonnes of Birmingham’s non-recyclable rubbish each year and exports 25MW of electricity to the National Grid, suitable to power over 41,000 homes. The facility has two 45bar 400°C water tube boilers delivering 67 tonnes per hour of steam to the high pressure turbines. It also has a 10bar waste heat shell boiler fuelled by a clinical waste incinerator, and this supplies steam to a low pressure turbine.
In order to maximise boiler efficiency, the quality of the water fed to the boilers has to be carefully controlled. Tyseley produces high purity deionised water on site and adds chemicals to scavenge
oxygen and adjust the pH to prevent corrosion. The combination of two types of boiler with common feed water and condensate systems means that controlling the boiler water chemistry at Tyseley requires a specialist solution. ELGA Process Water, a Veolia
Water Solutions & Technologies company, carried out a detailed site survey with technical support from their Boiler Competence Centre. A solution was developed, which included the appropriate chemicals from their Hydrex range to provide protection of the boilers, turbines and condensate system, as well as recommendations for regular service support to maintain ongoing boiler efficiency and optimal performance. Andy Bullock, Operations Manager for the Tyseley facility is pleased with the
result: “ELGA Process Water worked closely with us to achieve the appropriate boiler water quality and we’ve been particularly impressed with the technical support from the Boiler team and their readiness to formulate bespoke conditioning chemicals for our system.” Email:
sales.uk@
veoliawater.com www.elgaprocesswater.co.uk
investigate Non-Domestic EPC compliance in the UK up to the end of August 2010 and compare the results to our previous study completed in December 2009. We can report that through this new study, only 35% of commercial properties marketed for sale or lease have the legally required EPC. Whilst improving upon our previous reported figure of 28% in December 2009, these results indicate that non-compliance of EPC provision is still widespread and compliance remains far too low.
In total, 300 commercial properties were sampled in the UK during August 2010 and although Dr Gavin Dunn, Operations Director, Elmhurst Energy comments “whilst it was pleasing to note that the levels of non-compliance appears to have improved compared to the figures reported in our first scheme report, there obviously remains continued confusion around when the EPC is required by both building owners and agents.”
Commercial EPC Compliance Levels still only 35% L
eading energy rating organisation, Elmhurst Energy Systems Ltd, have undertaken a second study to
Following the results of this second
study, Elmhurst is again calling for our recommendations to be considered and implemented in order to improve commercial EPC compliance in the UK; Marketing agents need to be provided with much clearer guidance on the EPC requirements in order to better advise their clients
Responsibility of providing an EPC must switch from the vendor to the marketing agent Financial penalties must be imposed on owners and landlords failing to comply Minimum penalties need to be considerably increased for them to become a more effective deterrent Government needs to monitor to ensure that local Trading Standards departments are reporting on EPC non- compliance and taking action at every opportunity.
In addition to Elmhurst Energy’s recommendations, Dr Gavin Dunn also comments “the fact that EPCs are not available to prospective building occupants undermines a key aspect of the
UK’s energy efficiency and climate change policy and results in reduced
demand for EPCs within the energy rating industry. This industry is still oversupplied with Energy Assessors due to the large numbers who were encouraged to be trained, many of whom are now struggling to make a living, because there is simply not enough work available. This situation will not improve if agents continue to ignore energy efficiency legislation.” To view the full report conducted and issued by Elmhurst Energy Systems Ltd:
www.elmhurstenergysystems.co.uk/ images/ar01_elmhurst_annual_report_ 2009.pdf
Tel: 01455 883 286 SUSTAINABLE FM | NOVEMBER 2010 |49 Dr Gavin Dunn
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