Whether motivations are economic or environmental, there has never been more interest in reducing energy consumption and dependence upon expensive power usage. Renewable energy projects such as Solar / Photo-voltaic / Wind Turbines and Heat Source Pumps are not viable for most organizations due to the considerable capital investment and return on investment.
Therefore other methods of cost saving measures must be considered, attention falls on what can be done to reduce consumption. Those responsible for energy reduction have already undertaken the most obvious measures and now face the prospects of diminishing returns; lower potential savings; higher implementation costs and longer payback periods.
HydroChem have successfully developed an Energy Saving Programme that looks at an area of energy expenditure that has seldom been considered because of legislation and Legionella control i.e. the costs associated with heating domestic hot water. For those involved with the Hotel, Holiday and Leisure sectors or providing Residential Accommodation, Care Homes, Halls of Residence, Governmental Organizations, these costs can be considerable and have, until now been considered an unavoidable expense because of water safety.
HydroChem commissioned trials and studies with the University of Teesside and have identified that reducing the temperature of hot water by 10° C can lead to savings of up to 24% effectively one week of hot water free for every month of use. And where the temperature can be reduced further, the savings will be higher still.
All equipment, work, installations and commissioning on site meet with the Health and Safety Executive 'L8' Code of Practice and Guidelines. This is the Prevention or Control of Legionella Bacteria in water systems.
The method of prevention utilizes the action of Hydro TR16 and approved disinfectant (Silver Stabilized Hydrogen Peroxide) accurately dosed to water systems using a tried, tested and extremely accurate dosing unit. Tests and trials have shown that the temperature may safely be reduced to well below what is classified in the traditional approach of storing and using water at above 60° C and recirculating to the services at above 50° C.
Hydro TR16 is classified as a biocide and the HSE L8 (ACOP) states in its reading that "in water systems treated with biocides where storage and distribution temperatures are reduced from those recommended in the section on the use of temperature to control Legionella. This should be carried out on a monthly basis. The frequency of testing should be reviewed after a year and may be reduced when confidence in the efficacy of the biocide regime has been established".
Risk seen is minimal, case studies have shown that in continuous dosing ( or dosing on a timed regular basis every few days) can, does and will stop Legionella proliferation along with biofilm formation in water storage and distribution systems, effectively, safely and more efficiently than other disinfection models.