Solar Water Distillation Module Separator Design
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Solution Overview
Problem
Existing solar water distillation systems face challenges such as high production costs, inefficiencies due to corrosion and blockages, and cross-contamination of condensate with treatment liquid, which reduces the quality and quantity of fresh water produced.
Innovation Solution
An improved solar water distillation module featuring a flow system with a separator to collect condensate streams separately from treatment liquid, using a porous material sheet to distribute treatment liquid over a heat conductive base tray, and hydrophilic surfaces for condensate formation, along with a design that minimizes contact between condensate and treatment liquid, ensuring efficient separation and reduced contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing solar still designs are used, then fresh water can be produced from saline or contaminate supply, but cross-contamination occurs between condensed water and treatment liquid which defeats the fundamental purpose of obtaining fresh water supply
Solution Approach 1:
The solar still is divided into separate compartments: a treatment liquid chamber and a condensate collection chamber. The treatment liquid is contained in a tray that is physically separated from the condensate collection area, preventing cross-contamination while allowing both functions to occur within the same device.
Solution Approach 2:
A transparent barrier or membrane is introduced between the treatment liquid and condensate collection areas. This intermediary structure allows solar energy to pass through for heating while preventing direct contact between the treatment liquid and the collected condensate, thus eliminating cross-contamination.
2Quantity of substance
If solar stills are constructed to treat water, then fresh water supply can be obtained, but they are expensive to produce and use relative to the quantity of fresh clean water produced
Solution Approach 1:
The solar still design incorporates multiple functions into a single device: water heating, evaporation, condensation, and collection all occur in one integrated structure. The transparent cover serves both as a solar energy transmission medium and as a condensation surface, eliminating the need for separate components and reducing manufacturing costs.
Solution Approach 2:
The design utilizes thin transparent films or sheets as the cover and condensation surface. These thin films are inexpensive to manufacture, allow maximum solar energy transmission, and provide sufficient structural integrity while maintaining a lightweight, cost-effective design.
3Productivity
If solar stills operate continuously, then fresh water production increases, but corrosion and blockages occur causing inefficiencies that minimize or eliminate the opportunity for evaporation and condensate formation
Solution Approach 1:
The treatment liquid tray is made from porous material that allows capillary action to distribute the liquid evenly across the heating surface. This porous structure prevents liquid accumulation and blockages while maintaining continuous evaporation. The material is also resistant to corrosion from saline or contaminated water.
Solution Approach 2:
The design replaces mechanical pumping systems with passive capillary action and gravitational flow. The porous material and inclined surfaces enable automatic liquid distribution and drainage without moving parts, eliminating mechanical failures and reducing maintenance requirements while maintaining continuous operation.
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 module effectively minimizes cross-contamination, increases distillation efficiency, and extends the life of the system by reducing corrosion and blockages, while maintaining the quality of the distilled water produced.
Implementation Method 1
a porous material sheet overlaying the planar upper surface of the base tray, wherein a portion of the porous material is in fluid communication with the reservoir of the disbursement header, and wherein the porous material sheet is adapted to draw liquid from the reservoir of treatment liquid and distribute the treatment liquid over the area defined by the upper surface of the base tray
Implementation Method 2
an upper solar energy transmission wall attached to the planar frame extending over and spaced from the upper surface of the elongate base tray, the upper solar energy transmission wall having an inner condensate surface being hydrophilic relative to the condensate, whereby the inner surface provides a pathway for a first condensate stream
Implementation Method 3
an elongate base tray mounted to the planar frame assembly having a planar upper surface and opposite facing surface, wherein the upper surface is heat conductive and adapted to reflect solar energy
Implementation Method 4
the upper solar energy transmission wall having an inner condensate surface being hydrophilic relative to the condensate, whereby the inner surface provides a pathway for a first condensate stream; and a lower transmission wall attached to the planar frame extending over and spaced from the lower surface of the elongate base tray
Data Source
AI summary
An improved solar water distillation system including: a flow system for collecting one or more condensate streams from an input treatment liquid; and an input treatment liquid separator within the flow system adapted to collect excess input treatment liquid from the flow system separate from the one or more condensate streams. The treatment liquid is maintained separate to the condensate streams to substantially minimise cross-contamination of the one or more condensate streams.