Insulation-time determining device for a thermally insulated container
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Solution Overview
Problem
Current methods for determining the maximum insulation time of thermally insulated containers with latent heat accumulators are limited, as they can only assess reactions to a few outside temperature scenarios, lacking precision and failing to identify safety margins, especially during actual transport where specific temperature profiles vary.
Innovation Solution
A device and method that calculate the maximum insulation time with a safety correction factor by determining the amount of thermal energy stored in the latent heat accumulator using status parameters like interior temperatures, electric resistance, or optical density, and correlating it with external temperature progressions to maintain a specified temperature range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If validation tests are used to determine maximum insulation time, then the system response to specific temperature scenarios can be measured, but the method can only assess reactions to a few outside temperature scenarios and lacks precision for actual transport planning
Solution Approach 1:
The patent applies parameter changes by using multiple status parameters (temperature, electric resistance, optical density) to calculate thermal energy storage. This enables precise determination of maximum insulation time across various temperature scenarios, resolving the contradiction between measurement precision and adaptability.
Solution Approach 2:
The patent implements feedback by continuously monitoring status parameters and calculating thermal energy storage to determine maximum insulation time. This feedback mechanism allows the system to adapt to different temperature scenarios while maintaining precise determination, addressing both precision and versatility requirements.
2Reliability
If conventional determination methods are used, then the process is simple, but safety margins cannot be identified and transport planning is insufficient
Solution Approach 1:
The patent applies preliminary action by calculating maximum insulation time with safety correction factors before actual transport. This allows transport planning to be optimized in advance with identified safety margins, resolving the contradiction between reliability and complexity by performing calculations beforehand.
Solution Approach 2:
The patent segments the determination process into distinct calculation steps: measuring status parameters, calculating thermal energy storage, determining maximum insulation time, and applying safety correction factors. This segmentation makes the complex process manageable and systematic, addressing the reliability-complexity contradiction.
3Measurement precision
If thermal energy storage is not calculated from status parameters, then the system is simpler, but precise determination of maximum insulation time cannot be achieved
Solution Approach 1:
The patent applies universality by using a multi-functional calculation system that processes multiple status parameters (temperature, electric resistance, optical density) to determine thermal energy storage. This universal approach enables precise maximum insulation time determination while keeping the system relatively simple through unified calculation methodology.
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
Enables reliable and precise determination of the maximum insulation time, allowing for optimal transport planning across various scenarios by accounting for temperature variations and providing safety margins, ensuring the temperature range is maintained within permissible limits.
Implementation Method 1
the physical effect of the phase transition of a material is used to keep the temperature within a certain range. During a phase transition between the 'liquid' and 'solid' states of aggregation of a so-called phase change material (PCM)
Implementation Method 2
In phase change materials, the latent heat of fusion, heat of solution or heat of absorption is generally significantly larger than the heat that they can store due to their normal specific heat capacity
Implementation Method 3
thermally insulated container with a latent heat accumulator... to maintain the interior of the thermally insulated container in a specified temperature range
Data Source
AI summary
An insulation-time determining device for a thermally insulated container with a latent heat accumulator includes energy-calculating equipment for calculating the amount of thermal energy stored in the latent heat accumulator from at least one status parameter of the thermally insulated container or the interior thereof as well as display equipment for displaying the calculated amount of stored thermal energy or a value correlated therewith. The insulation-time determining device also includes insulation-time calculating equipment to calculate a maximum insulation time provided with a safety correction factor of the thermally insulated container from the calculated amount of stored thermal energy or a value correlated therewith and a specified external temperature progression outside the thermally insulated container, during which maximum insulation time a specified temperature range is neither fallen below nor exceeded in the interior of the thermally insulated container.