Fluid Sterilization System Using Dynamic Thermal Profiles
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Solution Overview
Problem
Current fluid sterilization methods, such as reverse osmosis, membrane technology, UV light, and high-temperature heating, are energy-intensive, require frequent maintenance, and are ineffective against prions, leading to costly disposal of medical equipment and limited accessibility to clean water, especially in developing regions.
Innovation Solution
A system that uses a heating section to sterilize pressurized fluid by maintaining prescribed temperature and pressure profiles, utilizing a heat exchanger for preheating and cooling, and operating valves in a controlled sequence to achieve sterilization without fixed temperature or pressure within the system, allowing for continuous flow and potential recirculation or autoclave chamber use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high-temperature heating is used to sterilize fluid, then sterilization effectiveness is improved, but energy consumption and equipment size increase
Solution Approach 1:
The system dynamically adjusts temperature and pressure parameters during the sterilization process. By varying these parameters over time rather than maintaining constant high values, the system achieves effective sterilization while reducing overall energy consumption and equipment size requirements.
Solution Approach 2:
The sterilization process employs periodic heating and cooling cycles. The fluid is heated to sterilization temperatures, then cooled down, creating a periodic action that reduces the total energy input required compared to continuous high-temperature maintenance, while still achieving effective sterilization.
2Reliability
If high-temperature heating is used to sterilize fluid, then sterilization effectiveness is improved, but apparatus size increases
Solution Approach 1:
By changing temperature and pressure parameters dynamically rather than maintaining constant high values, the system achieves effective sterilization in a more compact apparatus. The parameter variation allows for smaller heat-sink apparatus compared to traditional high-temperature continuous systems.
3Reliability
If reverse osmosis or membrane technology is used for sterilization, then fluid purification is achieved, but maintenance requirements and operational costs increase
Solution Approach 1:
The system replaces mechanical filtration systems (reverse osmosis, membranes) with a thermal field-based sterilization approach. By using controlled heating and cooling cycles rather than physical barriers, the system eliminates the need for membrane replacement and complex mechanical maintenance while achieving effective fluid purification.
4Reliability
If UV light technology is used for sterilization, then fluid sterilization is achieved, but operational costs and maintenance increase
Solution Approach 1:
The system replaces UV light sterilization with a thermal field approach using controlled heating and cooling. This substitution eliminates the need for UV bulbs that require frequent replacement and maintenance, reducing operational costs while maintaining effective fluid sterilization capability.
5Reliability
If prion sterilization is attempted with current methods, then treatment is applied, but effectiveness is insufficient leading to equipment disposal
Solution Approach 1:
The system employs extreme parameter changes including high temperature and pressure variations that are specifically effective against prions. These intensified parameter changes enable the inactivation of prions on medical equipment, eliminating the need for disposal and reducing healthcare costs.
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 sterilizes fluids and equipment by maintaining precise temperature and pressure conditions, reducing energy consumption and maintenance needs, and effectively inactivating prions, making it suitable for various applications, including medical and water purification.
Implementation Method 1
a heating section to heat pressurized fluid above prescribed thresholds for temperature, pressure, and duration
Implementation Method 2
a heat exchanger to both (a) preheat fluid prior to entering the heating section
Implementation Method 3
a heat exchanger to both (a) preheat fluid prior to entering the heating section and (b) cool outflow of the heating apparatus
Data Source
AI summary
A system of fluid sterilization is provided, which incorporates a heating section to heat pressurized fluid above prescribed thresholds for temperature, pressure, and duration (e.g., dwell time) to achieve desired levels of sterilization, including a heat exchanger to both (a) preheat fluid prior to entering the heating section and (b) cool outflow of the heating apparatus, in which fluid travels through the apparatus by operating valves forward and aft of the heating section in a controlled sequence to facilitate flow through the system while maintaining prescribed pressure and temperature profiles. The system operates within prescribed ranges of pressure and temperature to achieve the desired level of sterilization without need of maintaining a fixed temperature or a fixed pressure within any portion of the system, including the heating section.