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DA N A OS FLEET EMIS S IONS O U R E MISSIO N S
We a dopted th e a bove a pproa c h , in order to us e th e s a me referen c e tool a s th a t of our c h a rterers , s o a s to be ful l y a l ign ed with th em, rega rdin g emis s ion s c a l c ul a tion s .
E ver y y ea r , w e calcu late th e e mis s io n s o f o u r en t ire F le e t, as p iring to b e f u ll y t ra n spa rent o n th e p a rame ters th a t can i n fl u en c e o u r e f f o r ts tow ard s a mo re en ergy ef f icie nt manag e me nt. W e u s e t h o s e c a l c u la tio ns a s ind icato rs o f o ur en vi ro n m e nta l p erf o r ma nce a nd s h are t h em w i t h o u r clie nts , u p o n th e ir re qu e s t, i n o rder fo r th e m to e v alu ate th e ir f le e t’s en vi ro n m e nta l f o o tp rint. Al l t he fo r mu la e u s e d f o r th e calcu latio n of o u r em i s s io n KP I s a re in line w ith th e o ne s u s ed b y t h e KP I p latf o r m: h ttp s : / / w w w. s hi ppi n g-k p i. o rg / .
CO 2 EM I S S I ONS R eferen ces: IMO M EPC / C irc . 4 7 1 : I n terim Guidel in es for v ol un ta ry s h ip C O 2 emis s ion in dex in g for us e in tria l s C O 2 emis s ion s in ton s a re c a l c ul a ted for ea c h v oya ge of ea c h ves s el a n d th en s ummed up for a l l v oya ges of ea c h ves s el . T h ey a re th en s ummed up for a l l ves s el s a c c ordin gl y. T h e tota l C O 2 emis s ion s for th e D a n a os fl eet a re produc ed a s per th e bel ow formul a :
∑ ∑∑ FC ×C v i j
ijv
Fj
Where: • FC _ i j i s th e mas s o f co ns u me d f u e l j at v oya ge i (metric ton s ) for th e ves s el v , • C _ Fj i s a no n- d ime ns io nal co nvers io n fa c tor between fuel j c on s umption , mea s ured in gra ms a n d C O 2 em i s s io n a ls o me as u re d in g rams ba s ed on c a rbon c on ten t (a s per th e upda te of th e I M O 2 0 0 0 s t u dy ( B u h au g e t a l, 2 0 0 8 ) ) E E O I (i n g r / to ns * mile s ) f o r e a ch ve s s e l is defin ed a s th e ra tio of ma s s of C O 2 emitted per un it of t ra n spo r t w o rk :
EEOI=
∑ni=1 ∑ki=1 (FCij×CFj) x106 n ∑ i=1(mcargo,i×Di)
Where: • j i s t h e f u e l ty p e • i i s t h e v o y a g e nu mber • FC i ,j , is th e ma s s o f co ns u me d f u e l j durin g v oya ge i (metric ton s ) • C Fj , i s a no n- d ime ns io nal co nvers io n fa c tor between fuel j c on s umption , mea s ured in gra ms a n d C O 2 emis s io n a ls o me as u re d in g rams ba s ed on c a rbon c on ten t (a s per th e upda te of th e I M O 2 0 0 0 s tu d y ( B u h a u g e t al, 2 0 0 8 ) ) : D ie s e l/ G as o il: 3 . 20 6 0 0 L ig h t F u e l O il: 3 . 15104 H e av y F u e l O il: 3 . 11440 • m c a rg o , i , is th e ca r rie d ca rg o mas s durin g th e v oya ge i • Di , i s th e d is tance in nau tical mile s c orres pon din g to th e v oya ge i. Th e a vera g e E E O I o f all ve s s e ls p ro d u ce s fl eet a vera ge EEOI .
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