If the following condition applies the matrix element rating is Product use

If the following condition applies the matrix element

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If the following condition applies, the matrix element rating is 0 : Product use and/or maintenance is relatively energy intensive and less energy-intensive methods are available to accomplish the same purpose. If the following condition applies, the matrix element rating is 4 : Product use and maintenance requires little or no energy . If neither of the preceding ratings is assigned, complete the checklist below. Assign a rating of 1 , 2 , or 3 depending on the degree to which the product meets DfE preferences for this matrix element Has the product been designed to minimize energy use while it is in service? Has energy use during maintenance/repair been minimized? Have energy-conserving design features (such as auto shutoff or enhanced insulation) been incorporated? Can the product monitor and displace its energy use and/or its operating energy efficiency while in service? Source: SLCA Book, by Graedel
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L03 Slide 20 Flow During Use Phase CFL and Incandescent Power Plant Use Coal and other fuels New lightbulb CO 2 , VOC NO x , SO 2 , Hg Failed lightbulb Waste heat Electricity
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L03 Slide 21 Use/Energy (4,2) For 1600 lumens: CFL: 75% less energy needed “Has the product been designed to minimize energy use while in service?” Score: _____ Incandescent Product use and/or maintenance is relatively energy intensive and less energy-intensive methods are available to accomplish the same purpose” Score: ______
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L03 Slide 22 Use/Gaseous Residues (4,5) If the following condition applies, the matrix element rating is 0 : Product generates significant quantities of hazardous/toxic gaseous residue during use or from repair/maintenance operations If the following condition applies, the matrix element is 4 : Product generates no (or relatively minor amounts of) gaseous residues during use or from repair/maintenance operations If neither of the preceding ratings is assigned, complete the checklist below. Assign a rating of 1 , 2 , or 3 depending on the degree to which the product meets DfE preferences for this matrix element: Has the periodic emission of gaseous materials (such as CO 2 , SO 2 , VOCs and CFCs) associated with the use and/or maintenance of this product been avoided or minimized ? Have alternatives to the use of gaseous consumables been thoroughly investigated and implemented where appropriate? If intentional dissipative emissions to air occur as a result of using this product, have less environmentally harmful alternatives been investigated? If product contains any gaseous materials that have the potential to be unintentionally dissipated during use or repair, have the appropriate preventive measures been incorporated?
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L03 Slide 23 Flow During Use Phase CFL and Incandescent Power Plant Use Coal and other fuels New lightbulb CO 2 , VOC NO x , SO 2 , Hg Failed lightbulb Waste heat Electricity
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L03 Slide 24 CO 2 Emissions Source: Laurie Ramroth, 2008
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L03 Slide 25 Most energy used in Use phase: CFL: 77% less CO 2 released “Has
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  • Fall '09
  • MURRAYTHOMSON

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