11.08.2013 Views

Final Report Lot 9: Public street lighting - Amper

Final Report Lot 9: Public street lighting - Amper

Final Report Lot 9: Public street lighting - Amper

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

In this option increased values of UF are adopted that are close to the maximum obtained in the<br />

calculated ones in chapter 4 (4.3.1.4). This increased UF can of course only be realized with<br />

tubular clear (TC) lamps.<br />

7.2.1.9 Increasing ballast gain factor (BGF) by bi-level dimmable ballasts<br />

Option 10 (new sales base):<br />

In this option we assume that the energy saving potential by light dimming can be realised<br />

according to the values as described in chapter 3 (3.1.3) with the technology as described in<br />

chapter 6 (6.2.4).<br />

In this option it is also assumed that no HPM (high pressure mercury) lamps are used; dimming<br />

technology is unknown for these old lamp types. The HPM luminaires sales are distributed over<br />

2/3 HPS and 1/3 CMH lamps.<br />

In future the use of electronic ballasts and dimming could also contribute to an increase of LSF<br />

and LLMF as indicated in chapter 6 (6.2.1) and confirmed by CELMA. These positive effects<br />

could not yet be taken into account because of an actual lack of sufficient data.<br />

7.2.1.10 Increasing ballast gain factor (BGF and BMF) by electronically dimmable<br />

ballasts<br />

Option 11 (new sales):<br />

In this option we assume that the energy saving potential by light dimming and electronic<br />

ballasts can be realised according to the values as described in chapter 3 (3.1.3 and 3.1.4) with<br />

the technology as described in chapter 6 (6.2.3).<br />

7.2.2 Design options for product weight reduction<br />

7.2.2.1 Increasing lamp life (LSF)<br />

This is included in option 7.2.1.2<br />

7.2.2.2 Decreasing mercury content in lamps<br />

Option 12 (stock and new sales base):<br />

Only HPS lamps can be obtained without mercury content. All other HID lamps need a<br />

minimum of mercury to operate (see BOM in chapter 4).<br />

The mercury free HPS lamps however have a lower lamp efficacy and thus increased energy<br />

consumption.<br />

This option assumes that all HPS lamps are substituted by mercury free HPS lamps.<br />

7.2.3 Table with performance and product cost parameters for all improvement options<br />

The performance parameters per option are summarized in the draft spreadsheet<br />

'Hfstk7resultsanalyse.xls' that can be downloaded from the project website.<br />

210

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!