Subscripts and superscripts

am ort

amortization

min

minimal

C

component

new

used data of the model

C

cold stream

out

outlet

COMP

compressor

old

original data of the model

e

process unit

oper

operation

EL

electricity

UC

utility consumption

EX

heat exchanger

P

product

fix

fixed part of investment

r

reaction

H

hot stream

ref

reference value

HEN

heat exchanger network

REAC

reactor

i

process alternative

S

raw material

in

inflow

STEAM

steam

j

simple scenario

taxe

taxes

k

complex scenario

u

inlet raw material

Lo

lower limit

UP

upper

ln

medium-logarithmic

var

variable part of investment

MIX

mixture

V

chemical product

m

molar