Archimedes Gravity Pump for Low-Energy Reverse Osmosis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Reverse osmosis desalination systems face high energy consumption and environmental impact due to the need for high-pressure pumping, which is costly and contributes to greenhouse gas emissions, limiting their widespread adoption, especially in regions reliant on renewable energy.
Innovation Solution
A self-contained solar and gravity-based fluid pumping system using an electrified weight bearing vehicle (EWBV) to power a reciprocating pump, converting solar and gravitational energy into mechanical motion for reverse osmosis desalination with minimal energy input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional high-pressure pumping systems are used for reverse osmosis desalination, then desalination efficiency is improved, but energy consumption increases significantly
Solution Approach 1:
The system employs a dynamic, reciprocating pumping mechanism driven by gravitational potential energy rather than continuous high-pressure mechanical pumping. The vehicle moves back and forth along the track, converting gravitational energy into periodic pumping action that drives reverse osmosis, thereby reducing continuous energy input while maintaining desalination productivity
Solution Approach 2:
The invention replaces the conventional mechanical high-pressure pumping system with a gravity-based mechanical system. Instead of using motor-driven pumps to force water through membranes, the system uses the gravitational force of a moving vehicle to drive a reciprocating pump, substituting one mechanical approach with another that eliminates the need for continuous electrical energy input
2Power
If grid electricity is used to power pumping systems, then pumping capacity is improved, but greenhouse gas emissions increase
Solution Approach 1:
The system is self-powered through the gravitational motion of the vehicle itself. The vehicle's back-and-forth movement along the inclined track generates the pumping action needed to drive reverse osmosis, making the system self-sufficient and eliminating dependence on external grid electricity, thereby removing the associated greenhouse gas emissions
Solution Approach 2:
The system converts the gravitational potential energy that would otherwise be wasted into useful pumping work. By utilizing the natural gravitational force acting on the vehicle as it moves along the track, the system transforms a passive physical phenomenon into an active energy source that drives the desalination process without harmful emissions
3Adaptability or versatility
If solar photovoltaic arrays are used to power the electrified vehicle, then energy independence is improved, but device complexity increases
Solution Approach 1:
The electrified vehicle serves multiple functions: it is both the power source (through its solar panels and battery) and the pumping mechanism (through its gravitational motion). The solar photovoltaic array on the vehicle charges the battery, which powers the vehicle's movement, which in turn drives the reciprocating pump for reverse osmosis. This multi-functionality achieves energy independence while managing complexity through integration
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system significantly reduces energy consumption and greenhouse gas emissions, providing a sustainable and cost-effective solution for large-scale fluid pumping and desalination with zero emissions.
Implementation Method 1
A solar photovoltaic (PV) array is affixed atop the EWBV to power the battery attached to the EWBV
Implementation Method 2
The movement of the EWBV induces a reciprocal motion by the roadway platform... the back-and-forth movement of the EWBV is limited by the spring-loaded end stops... Left and right platform stops attached to the support structure can limit the platform to at least a twenty degree drop in both directions
Implementation Method 3
a water supply containing unwanted contaminants is forced at a high pressure through a specialized membrane that allows water molecules to pass through while blocking passage of larger contaminants
Data Source
AI summary
A gravity-driven energy pump apparatus and method for reverse osmosis desalination utilizing the gravitational force of an electrified weight-bearing vehicle. Comprised of upright support stanchion posts, an axle, and a linear track with protective end stops located on opposite ends. Wherein the central section of the track is affixed to the axle, enabling rotation when gravitational force is applied, thus tilting the opposite side on the axle. Further comprises an electrified weight-bearing vehicle (EWBV) positioned atop the track allowed to move back and forth, exerting gravitational force and inducing rotation. A solar PV array is affixed to the top of the EWBV to generate solar energy to power the battery. Chains affixed to both ends of the track catch the falling weight of the track. The action rotates drive and pinion gears to push pistons into pressure cylinders, facilitating fluid pumping between pressure cylinders and a pre-filtered water reservoir.