Ship Universe Maritime Tool

Cruise Ship Freshwater Production & Desalination Cost Tool

Estimate hotel-water demand, onboard desalination production, shore-water purchases, storage reserve, energy use and cost per cubic meter. Advanced mode separates reverse osmosis and evaporator production, sea and port utilization, fixed service cost and investment payback versus an all-bunkered-water baseline.

Hotel Water Demand
Passengers, crew and non-person hotel loads
Onboard Production
RO and evaporator output constrained by capacity and utilization
Water Economics
Onboard cost, shore-water make-up, reserve and payback

Passengers, Crew & Voyage

Simple mode combines all onboard desalination into one production system.

passengers
crew
L/person/day
m³/day
days
days demand

Desalination Production

m³/day
%
kWh/m³
$ /kWh
$ /m³ produced

Shore Water, Service Cost & Investment

$ /m³
$
$ /year
voyages/year
$
Used for simple payback versus an all-shore-water baseline.

Hotel Water Demand

Advanced mode separates passenger, crew and fixed hotel loads and models different production utilization at sea and in port.

passengers
crew
L/pax/day
L/crew/day
m³/day
m³/day
days
days
days demand

Reverse Osmosis System

m³/day
%
%
kWh/m³
$ /kWh
$ /m³

Evaporator / Waste-Heat Freshwater Generator

m³/day
%
%
$ /m³
Use incremental fuel, steam, pumping or waste-heat opportunity cost.
$ /m³

Shore Water, Fixed Cost & Investment

$ /m³
$
$ /year
voyages/year
$
$
$

Freshwater & Desalination Results

Simple freshwater production estimate

Enter ship data
Enter passengers, voyage duration and desalination assumptions to estimate water demand, onboard production and freshwater cost.
Planning estimate only. Actual freshwater demand and production depend on passenger occupancy, laundry and galley operations, pools and spa loads, potable-water practices, seawater temperature and salinity, membrane condition, evaporator heat availability, port restrictions, tank arrangement, treatment chemistry, potable-water quality requirements and equipment availability. This tool does not size pumps, membranes, evaporators or potable-water tanks for engineering approval.
Results copied
By the ShipUniverse Editorial Team — About Us | Contact