Photovoltaic Seawater Reverse Osmosis Module

M-30

Large hotels, communities & cities

A proposed 30 hp module based on the T-1, using APP/APM pressure recovery and two eight-inch membrane pressure vessels.

30 hp module — plan view

30 hp RO module plan view: 30 hp electric motor, APP 17 pump, APM 10.2 recovery motor, variable speed drive, controls, and two 8-inch membrane pressure vessels

Proposed M-30 module flow

What the 303 L/min design flow would produce

This is a design calculation, not a reported operating result. The paper specifies 303 L/min feed and 42% proposed yield.

Feed seawater303 L/min

Permeate: 127 L/min
Brine: 176 L/min
Pressure: 720 psi maximum

Source: Demand Response Desalination (2015), pages 9-11. Output flows are calculated from the paper's feed flow and recovery values. Original page.

Calculated from the proposed module

A plant adjustable in approximately 22 kW steps

The paper envisioned plants containing 5-500 independently controlled modules. Every additional module would add or remove about 22 kW of load.

5 modules 110 kW

50 modules 1.1 MW

100 modules 2.2 MW

250 modules 5.5 MW

500 modules 11 MW

Source: Demand Response Desalination (2015), pages 9 and 11. Loads shown are arithmetic products of the paper's 22 kW module demand, not measured plant results. Original page.

How it works

30 hp module class, built from the same integrated design language as the T-1
Axial-piston pump & motor (APP/APM) for high pressure and pressure recovery
The paper proposed combining modules to fit the desired plant capacity
Presented as a grid-integrated demand-response design, not as a current commercial offering