PDF《long life technology》

Longlife Technology Doubles the Efficiency of High Power Amalgam Lamps Treated with Heraeus long life technology Conventional coating Lifetime dependency of coating UVC radiation has an intense bactericidal action.

Microorganisms such as viruses, bacteria, yeasts and spores are effectively inactivated without the addition of chemicals. The energy of UVC radiation is sufficient to break down chemical compounds or to achieve molecular restructuring. In addition, oxidation processes and decomposition reactions of organic compounds are initiated. Amalgam UVC lamps with Longlife Technology offer a disinfection action which is virtually constant over the lamp operating life. While the UVC output of uncoated lamps drops by around 50% after 8,000 hours, the Amalgam UVC lamps with Longlife Technlogy have a reduction in UVC output of approximately 10?% at up to 16,000 hours. Typical lifetime diagram UV output % lifetime hours

0 20

0 90?% 70?% 50?% Heraeus Longlife Amalgam Lamp Amalgam Lamp with conventional coating Conventional Amalgam Lamp Quartz Gas

200 nm usefull UV-Dose Germany Heraeus Noblelight GmbH Heraeusstra?e 12C14

63450 Hanau Phone +49

6181 35

4499 Fax +49

6181 35

164499 [email protected] USA Heraeus Noblelight America LLC

910 Clopper Road Gaithersburg, MD

20878 Phone +

1 301

527 2260 Fax +

1 301

527 2661 [email protected] France Heraeus SAS 12, Av, du Québec B?t. I.2 Villebon B.P.

630 91945 Courtaboeuf Cedex Phone +33

1 6918

4851 Fax +33

1 6928

8243 [email protected] China Heraeus Noblelight (Shenyang) Ltd. Shanghai Branch 2F, Building 5, No. 406, Guilin Road, Xuhui District Shanghai

200233 Phone +86

21 3357

5555 Fax +86

21 3357

5333 [email protected] heraeus-noblelight.cn www.heraeus-noblelight.com Technische ?nderungen vorbehalten. UVP08E/09/2011 Influence on quartz transmission Because of the higher UVC output at end of lamp life due to minimal absorption and the extended operating life, Heraeus Longlife Amalgam lamps offer disinfection systems a significant potential for savings. The benefits are fewer lamps and system consumables, less energy consumption and maintenance costs. Compared with standard low pressure mercury lamps, the amalgam lamps offer the extremely good UVC efficiency, which is typical of mercury low pressure lamps, but with a significantly higher UVC output. With Longlife Technology, lamps can be produced which have no discoloration and even after 16,000 hours still provide a UVC output greater than 90?% of the original output. Technical data of compared lamps Heraeus?Amalgam lamps offer great potential for savings in number of lamps, system components, energy consumption and service intervals C while significantly reducing the operating costs of disinfection systems. The comparison below shows an example of different lamp types and their consumption over six years. Based on the same demand for UVC output, different numbers of lamps per system are needed. Transmission of coatings Transmission % λ, nm

0 75

50 25

175 200

225 250

275 300

150 Conventional Amalgam Lamp Heraeus Longlife Amalgam Lamp Amalgam Lamp with conventional coating Heraeus Longlife Amalgam Lamp

5 15 lamps in 48,000 h

35 %

32 % Lamp type Quantity of lamps Initial UVC efficiency UVC efficiency @ end of life Lamps/system Transmission gap Lamps/system Lamp type Quantity of lamps Initial UVC efficiency UVC efficiency @ end of life

0 h 4,000 h 8,000 h 12,000 h 16,000 h 20,000 h 24,000 h 28,000 h 32,000 h 36,000 h 40,000 h 44,000 h 48,000 h Lamp change Operation hours Amalgam Lamp with conventional coating