Wigan Infirmary Expected to Save Over £48,000 a Year Following Installation of GEM Steam Traps

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Courtesy of Thermal Energy International Inc.

The Royal Albert Edward Infirmary in Wigan, better known as Wigan Infirmary, anticipates it will avoid spending £48,847 per annum in fuel and maintenance costs following the installation of Thermal Energy International’s GEM venturi orifice steam traps. A total of 157 GEM steam traps have been installed throughout Wigan Infirmary’s site providing the hospital with a projected payback in just under two years on steam savings, increased efficiency, failed traps, maintenance and Carbon Offset Value costs.

 Wigan Infirmary is a redeveloped and modern District General Hospital situated in Wigan.  The hospital, part of the Wrightington, Wigan and Leigh NHS Foundation Trust, provides a base for emergency and acute work.  Steam is used by the hospital for a wide range of services including the various plant rooms’ heating & hot water heat exchangers, space heating, AHU batteries and humidification.

Prior to the installation of the GEM steam traps, the hospital found that a percentage of its steam traps were failing each year.  Thermal Energy International conducted a survey of the hospital’s steam traps using an infrared thermometer.  It found that two percent of the traps had failed to open, allowing large amounts of expensive steam to be wasted, one percent had failed and was partially open allowing smaller amounts of steam to pass and a further two percent had failed and closed which was causing the condensate to back-up and create wet steam, corrosion problems and water hammer.  It was calculated that Wigan Infirmary was losing a total of over 200,000 kWh per year from steam loss alone.

According to research carried out by Queen’s University, Belfast, GEM steam traps have been proven to be the most efficient design of steam traps on the market providing an average reduction of 11.5% in the portion of the boiler fuel bill that is used to generate trapped steam. Instead of utilising a valve mechanism to close off steam for maximum energy and water conservation, the highly efficient GEM steam traps use the patented venturi orifice design to effectively drain condensate from the steam system. As the GEM steam traps have no moving parts to wedge open or fail, it provides the ultimate in reliability necessitating in only minimal maintenance and requiring no spares, testing or monitoring equipment.   

The GEM traps are also helping the hospital reduce its carbon emissions.  Under the Government’s CRC Carbon Reduction Scheme, large energy users, such as hospitals will, with effect from 2012, have to buy allowances for each tonne of carbon dioxide at a rate of £12 per tonne per annum.  As a consequence, participants successful in reducing energy consumption will not only save money on energy bills, but will also need to purchase fewer allowances.  It has been calculated that following the installation of the GEM traps, Wigan Infirmary is  on track to save £6,389 per annum in Carbon Offsetting Value.

“Our first quarter calculations show a 16% decrease in fuel costs following the conversion to GEM”, said Mark Hogan, Energy Environmental Manager in the Estates & Facilities Department at Wigan Infirmary.  “Calculating the load using degree day analysis, which takes into consideration the warm weather, we are enjoying a 10% overall reduction of fuel usage.” 

 

Wigan Infirmary is a redeveloped and modern District General Hospital situated in Wigan.  The hospital, part of the Wrightington, Wigan and Leigh NHS Foundation Trust, provides a base for emergency and acute work.  Steam is used by the hospital for a wide range of services including the various plant rooms’ heating & hot water heat exchangers, space heating, AHU batteries and humidification.

 

Prior to the installation of the GEM steam traps, the hospital found that a percentage of its steam traps were failing each year.  Thermal Energy International conducted a survey of the hospital’s steam traps using an infrared thermometer.  It found that two percent of the traps had failed to open, allowing large amounts of expensive steam to be wasted, one percent had failed and was partially open allowing smaller amounts of steam to pass and a further two percent had failed and closed which was causing the condensate to back-up and create wet steam, corrosion problems and water hammer.  It was calculated that Wigan Infirmary was losing a total of over 200,000 kWh per year from steam loss alone.

 

According to research carried out by Queen’s University, Belfast, GEM steam traps have been proven to be the most efficient design of steam traps on the market providing an average reduction of 11.5% in the portion of the boiler fuel bill that is used to generate trapped steam. Instead of utilising a valve mechanism to close off steam for maximum energy and water conservation, the highly efficient GEM steam traps use the patented venturi orifice design to effectively drain condensate from the steam system. As the GEM steam traps have no moving parts to wedge open or fail, it provides the ultimate in reliability necessitating in only minimal maintenance and requiring no spares, testing or monitoring equipment.   

 

The GEM traps are also helping the hospital reduce its carbon emissions.  Under the Government’s CRC Carbon Reduction Scheme, large energy users, such as hospitals will, with effect from 2012, have to buy allowances for each tonne of carbon dioxide at a rate of £12 per tonne per annum.  As a consequence, participants successful in reducing energy consumption will not only save money on energy bills, but will also need to purchase fewer allowances.  It has been calculated that following the installation of the GEM traps, Wigan Infirmary is  on track to save £6,389 per annum in Carbon Offsetting Value.

 

“Our first quarter calculations show a 16% decrease in fuel costs following the conversion to GEM”, said Mark Hogan, Energy Environmental Manager in the Estates & Facilities Department at Wigan Infirmary.  “Calculating the load using degree day analysis, which takes into consideration the warm weather, we are enjoying a 10% overall reduction of fuel usage.”

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