Efficiency of plant and incorporation of efficiency gains remains one of the key areas of greatest importance with the running of energy efficient steam and hot water generation plant.
The difference in fuel costs from the running of old boiler plant as opposed to new contemporary boiler plant can be in excess of 15%. Extrapolated across an annual fuel cost in excess of a million pounds this can result in significant potential for fuel savings.
Torque Engineering personnel have for over 10 years designed, fabricated, installed and commissioned their own range of standard and bespoke economiser turnkey solutions to boilerhouses in both the UK and overseas. These services having originally started at ME Engineering. Our complete in-house solutions mean that no part of the turnkey works is outsourced. This gives the benefits of both cost savings and also the “one stop shop” solution that many Clients require.
We offer our services to carry out a free of charge no obligation efficiency survey of boilerhouses. This survey may from time to time involve the co-opting of specialists to advise in specific areas, but in general gives an overview of how existing plant is operating, an idea of where and what size of savings can be made, through either improved maintenance or installation of new or retrofitted high efficiency energy saving solutions.
Economiser or heat exchanger solutions may be utilised for gas to water, water to pre-combustion air or air to water applications.
The most common application for economiser utilisation is that an element of boiler flue exhaust gases (carefully ensuring they do not drop below ‘dew point’ within flue stack) can be re-utilised to transfer heat to a coil or element mounted at the boiler back end. This coil can then either be utilised in boiler feed water direct or to increase heat within some alternative sub-process. By increasing boiler feedwater temperature, beneficially the heat level required to raise between feedwater and the relevant saturated steam temperature is reduced. Therefore, the amount of heat energy input required from the firing source (burner) is reduced. Hence the saving in terms of fuel utilisation.
In addition, further savings can be offered via the installation of secondary or condensing stainless steel economiser plant that can further reduce gas exit temperatures (where chimney flue arrangements and materials allow for).
Payback periods of less than 12 months are not uncommon, whilst most projects will payback in less than 24 months. Efficiencies of 6% fuel savings can usually be achieved from such installations.
Project financing can be available for such programmes, which can be offset against monthly fuel savings to effectively fund projects “for free”, by offsetting fuel savings against repayments.
For more information or specific enquiries relating to energy efficiency or other project works, please contact Jeremy Lee at our Head Office at firstname.lastname@example.org
For more information regarding efficiency upgrades to existing burners and combustion equipment, please refer to our partner Saacke Combustions website for further information (link to efficiency upgrade section of Saacke website here)