Stirling Engine Powered Distillation Apparatus
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Solution Overview
Problem
Conventional water purification methods, such as vapor compression distillation, are hindered by the lack of access to reliable and affordable power in developing regions, limiting their effectiveness in producing clean water, especially in decentralized settings with poor infrastructure and limited technical resources.
Innovation Solution
A fluid vapor distillation apparatus incorporating a Stirling engine-powered system with a regenerative blower and counter-flow tube-in-tube heat exchanger, which enhances efficiency and reduces power requirements while maintaining low maintenance needs, utilizing a Stirling engine to power the distillation process and a heat exchanger to optimize energy transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vapor compression distillation is used to purify water, then water purification effectiveness is improved, but power consumption increases
Solution Approach 1:
The patent combines the evaporator and condenser into a single integrated evaporator-condenser unit, eliminating the need for separate components and reducing overall system power consumption while maintaining purification effectiveness
Solution Approach 2:
The patent implements continuous operation where the evaporator-condenser continuously transforms source fluid into steam and compressed steam into product fluid, maintaining steady-state operation that reduces peak power demands compared to batch processing
2Adaptability or versatility
If vapor compression distillation systems are deployed in decentralized settings, then water purification accessibility is improved, but system maintenance requirements increase
Solution Approach 1:
The patent divides the distillation system into modular components including a separate regenerative blower and evaporator-condenser unit, allowing for easier maintenance and repair in decentralized settings without requiring specialized technical expertise for the entire system
Solution Approach 2:
The patent incorporates a regenerative blower that automatically recovers and reuses waste heat from the condensation process to pre-heat the incoming source fluid, reducing the external power and maintenance requirements for the system
3Loss of energy
If conventional heat exchangers are used, then energy transfer is achieved, but heat transfer efficiency is insufficient
Solution Approach 1:
The patent introduces a regenerative blower as an intermediary device that facilitates heat transfer between the condensing steam and the incoming source fluid, significantly improving heat transfer efficiency compared to conventional direct-contact heat exchangers
Solution Approach 2:
The patent recovers waste heat from the condensation process by using the regenerative blower to redirect cooler air through the evaporator section, pre-heating the incoming source fluid and reducing the overall energy required for distillation
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 effectively produces clean water with reduced energy consumption and maintenance, addressing the challenges of power scarcity and infrastructure limitations in developing regions by improving efficiency and scalability.
Implementation Method 1
the evaporator condenser transforms source fluid into steam
Implementation Method 2
transforms compressed steam into product fluid
Implementation Method 3
a heat exchanger fluidly connected to the source fluid input and a product fluid output
Implementation Method 4
The regenerative blower compresses steam
Implementation Method 5
utilizing a Stirling engine to power the distillation process
Data Source
Figure 1
Figure 1A
Figure 1B
AI summary
A fluid vapor distillation apparatus. The apparatus includes a source fluid input, and an evaporator condenser apparatus (104). The evaporator condenser apparatus (104) includes a substantially cylindrical housing and a plurality of tubes in the housing. The source fluid input is fluidly connected to the evaporator condenser (104) and the evaporator condenser transforms source fluid into steam and transforms compressed steam into product fluid. Also included in the fluid vapor distillation apparatus is a heat exchanger (102) fluidly connected to the source fluid input and a product fluid output. The heat exchanger (102) includes an outer tube and at least one inner tube. Also included in the fluid vapor distillation apparatus is a regenerative blower (106) fluidly connected to the evaporator condenser (104). The regenerative blower (106) compresses steam, and the compressed steam flows to the evaporative condenser (104) where compressed steam is transformed into product fluid.