of 74
7/25/2019 LCA Spreadsheet 1 10
1/74
LCA spreadsheet Tuomas Mattila, SYKE
version 1.10
Created: 3/12/2008
Last edit: /1/200!
" s#reads$eet model %or &ondu&tin' sim#le LC" (anal)sis *+0 unit #ro&esses
-n&ludes modules %or sensitivit) anal)sis
Principle
Li%e &)&le assessment *LC" &an e #resented it$ t$ree matri euations:
T$e %irst euation is used to trans%orm #ro&ess data into a #rodu&tion s)stem:
*1
" is a te&$nolo') matri or a dataase o% #ro&ess %los and #rodu&tion #ro&esses
% is t$e %inal demand ve&tor or t$e out#ut desired %rom t$e s)stems is t$e s&alin' ve&tor $i&$ des&ries t$e ne&essar) intensit) o% #rodu&tion #ro&e
T$e s&alin' ve&tor &al&ulated %rom t$e %irst euation is used to &al&ulate t$e intens
*2
is t$e unit emission matri *a dataase o% #ro&ess values
' is t$e emission inventor) ve&tor des&riin' t$e emissions &aused ) t$e $ole s
T$e t$ird euation is used to translate emissions into environmental im#a&ts *e.'.
*3
4 is a &$ara&teri5ation matri *a dataase o% im#a&t intensit) &$ara&teri5ation valu
$ is a ve&tor re#resentin' t$e environmental im#a&ts &aused ) t$e s)stem
-n order to ma6e t$e otained im#a&ts reasonale, t$e) &an e normali5ed ) divi
9inall) t$e normali5ed values &an e ei'$ted it$ value(ased ei'$ts to 'et a si
How to use this spreadsheet
System definition
1. S&et&$ t$e #ro&esses and %los on t$e %lo&$art *or it$ #en#a#er
2. ;at$er t$e #ro&ess data on t$e s)stem matri " *te&$nolo') matri and *emi
( no need %or normali5ation, it ill e done on t$e s&alin' sta'e *i.e. 0.+, &on%iden
.
7/25/2019 LCA Spreadsheet 1 10
2/74
T$e normali5ed result &an e read %rom t$e same ta.
Weighting
-9 *and onl) -9 )ou reall) ant to use ei'$tin', insert t$e ei'$tin' %a&tors on -n
T$e indi&ator result is s$on on t$e )ello a&6'round.
ncertainty and sensitivity analysis
T$e sensitivit) matri&es are &al&ulated automati&all) ased on #erturation anal)si
You &an &om#ute t$em ased on di%%erent im#a&t &ate'ories on '1 and '2.
T$e sensitivit) matri&es are &al&ulated on t$e &urrent #oint in #arameter s#a&e. T$
7n&ertaint) anal)sis ill e im#lemented as a se#arate Matla/A(module.
-t &al&ulates t$e &on%iden&e %a&tors o% ea&$ emission and im#a&t &ate'or) it$ Mo
Hy!rid I"#LCA
=ill e im#lemented later on ased on E-LC"
7/25/2019 LCA Spreadsheet 1 10
3/74
sses
it) o% emissions %rom unit #ro&esses
stem
C2 emissions into &limate armin' #otential
es
in' it$ a re'ional re%eren&e im#a&t ve&tor *e.'. T$e &limate &$an'e #otential o% t$e E7 &ountries in 20
in'le environmental #er%orman&e indi&ator.
sion matri
d
m#t) #arts as 0 ut t$e dia'onal as 1
&e %a&tor on in#ut1
ell
less detail on #ro&esses, &$e&6 out t$e Aesults 1 ta.
e emissions t$e most.
s on in#ut 3.
$e Aesults 1 ta.
ycle assessment.
7/25/2019 LCA Spreadsheet 1 10
4/74
ut ta.
s.
e) ma) not re#resent maDor &$an'es in in#ut.
nte Carlo simulations.
7/25/2019 LCA Spreadsheet 1 10
5/74
0
7/25/2019 LCA Spreadsheet 1 10
6/74
7/25/2019 LCA Spreadsheet 1 10
7/74
"n Eam#le: ioener') %rom arle) LCA spread
version 1.10
Eam#le: i
$ate
2/21/200
2/22/200
7/25/2019 LCA Spreadsheet 1 10
8/74
sheet
oener') %rom arle)
pdate Who
Colle&tion o% material alan&es
C$e&6 o% mass alan&es, &om#arison it$ HTT *di%%eren&e less t$an +I
7/25/2019 LCA Spreadsheet 1 10
9/74
7/25/2019 LCA Spreadsheet 1 10
10/74
arle)&ultivation9
inland200
9ertili5er#rodu&tio
nKemiraY3
