Based on the model, an orthogonal design optimization method is presented and analyses are conducted for heat pump unit energy consumption, seawater pump energy consumption, and economic cost for various conditions using MATLAB code.
The experiment results confirm that the designed system has a superior performance in seawater desalination without power consumption.
In this paper, authors breakdown the specific energy consumption for seawater and brackish water desalination in an attempt to quantify the value of high permeability membranes on specific energy consumption for desalination.
The Gibbs free energy of mixing accounts for almost half of the specific energy consumption for seawater desalination and for brackish water desalination system losses and frictional losses account for major share of energy consumption.
Reverse osmosis (RO) is one of the major technologies for mid- and large-size desalination plants because it offers a means of producing high quality of water from seawater with lower energy consumption than other processes such as evaporation processes.
Isobaric energy recovery devices (ERDs) are developing rapidly and playing a significant role in reducing specific energy consumption (SEC) of seawater reverse osmosis (SWRO) desalination systems.
Pressure retarded osmosis (PRO) is a promising technology to reduce the specific energy consumption of a seawater reverse osmosis (SWRO) plant.
The energy consumption for extracting seawater and surface water has been considered to be 0.032 kWh/kL, while 0.041 kWh/kL has been considered for groundwater (Goldstein and Smith 2002).
It is shown that these products can be used across the entire seawater segment to reduce energy consumption down to levels of 2.0 kWh/m3 or to reduce the capital cost of the membrane stage by up to 30%.
