A framework for optimisation and techno-economic analysis of CO2 pressurisation strategies for pipeline transportation | Science and Technology for Energy Transition (STET)

Open Access

Table 1

Key simulation parameters.

Parameter	Unit	Description
$\dot{m}$ $\dot{m}$	kg/s	Mass flow of CO₂ to be pressurised.
P_in	Pa	The feed pressure of the un-pressurised CO₂.
T_in	K	The feed temperature of the un-pressurised CO₂, also used for the inter-cooling temperature.
P_final	Pa	The final pressure of the pressurised CO₂.
P_liq	Pa	The liquefaction pressure. If set, this is used as the final pressure of the compression part of the pressurisation at which the CO₂ is liquefied and pumped to the final pressure.
T_liq	K	If P_liq is above the critical point, this parameter specifies the temperature the CO₂ is cooled to before being pumped in the dense phase region.
dP	Pa	Pressure drop applied to each compressor after/inter-cooler.
n_stage	–	Number of compression stages. Integer value.
ϵ_comp	–	Isentropic efficiency of the CO₂ compressors. Decimal value between 0 and 1.
ϵ_pump	–	Isentropic efficiency of the liquid/dense phase CO₂ pump. Decimal value between 0 and 1.
ϵ_refrig	–	Isentropic efficiency of the refrigerant compressor. Decimal value between 0 and 1.
T_sub	K	Sub-cooling in the refrigerant condenser.
T_sup	K	Super-heating in the refrigerant evaporator (CO₂ condenser/cooler).
T_cond	K	Condensing temperature of the refrigerant.
T_amb	K	Ambient air temperature. Used for calculation of air cooled heat exchangers.
T_cool	K	Cooling medium temperature. Used for calculation of Shell & Tube heat exchangers.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.