Refrigeration Trailer Air Chute Layout for Side-Wall Airflow
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Solution Overview
Problem
Existing refrigeration trailer air distribution chutes are prone to damage during cargo loading and unloading due to their drooping design, obstruct lighting, and require laborious and time-consuming installation, leading to increased costs and reduced efficiency.
Innovation Solution
A refrigeration trailer air distribution chute design featuring a first air director attached to the ceiling along two lines of attachment and a second air director attached along a single line, allowing the chute to hang parallel to the side wall, minimizing damage risk and simplifying installation by eliminating the need for guide lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the air distribution chute is designed to extend along the center of the ceiling with a drooping configuration, then cooled air flow from the refrigeration unit to the rear of the trailer is ensured, but the chute becomes prone to damage during cargo loading and unloading operations
Solution Approach 1:
The air distribution chute is divided into multiple modular sections that can be independently installed and positioned. This segmentation allows the chute to be configured in a way that reduces exposure to damage zones during cargo operations while maintaining air flow functionality.
Solution Approach 2:
The chute design transitions from a traditional center-ceiling extension to a configuration that utilizes side wall proximity and alternative spatial positioning. This dimensional change relocates the chute away from high-risk cargo paths while preserving its air distribution function.
2Reliability
If the air distribution chute is attached to the ceiling along multiple lines to ensure stability, then air flow distribution is improved, but installation becomes laborious and time-consuming requiring guide lines
Solution Approach 1:
The chute modules are pre-configured with attachment features and alignment markers during manufacturing. This preliminary preparation eliminates the need for complex on-site measurements and guide lines, allowing installers to quickly position and secure the chute while maintaining stability requirements.
Solution Approach 2:
The chute design incorporates self-aligning features and self-supporting structural elements that automatically position the chute correctly during installation. This self-service capability reduces dependency on complex installation procedures and external guidance tools.
3Reliability
If the air distribution chute is positioned to cover the ceiling area for optimal air flow, then cooled air distribution is enhanced, but lighting in the trailer is obstructed
Solution Approach 1:
The chute is segmented into multiple smaller sections that can be strategically positioned to distribute air flow effectively while leaving gaps or openings that allow light transmission. This segmentation enables simultaneous optimization of air flow and lighting conditions.
Solution Approach 2:
The chute design incorporates light-transmissive materials or strategic openings that act as intermediaries, allowing light to pass through or around the chute structure while maintaining its air distribution function. This mediator approach resolves the conflict between coverage and visibility.
4Productivity
If the air distribution chute is positioned close to the ceiling for effective air flow guidance, then air distribution efficiency is improved, but heat transfer from the ceiling to cooled air increases
Solution Approach 1:
The chute design utilizes vertical positioning variations and three-dimensional air flow pathways that allow effective air distribution while maintaining distance from heat-generating ceiling areas. This dimensional approach enables efficient air guidance without direct thermal contact.
Solution Approach 2:
The chute structure acts as a thermal intermediary, using its material properties and design to minimize heat transfer from the ceiling to the cooled air while maintaining air flow guidance functionality. The chute mediates between the thermal environment and the refrigerated cargo space.
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 design reduces the likelihood of chute damage, shortens installation time, minimizes ceiling coverage, and reduces heat transfer to cooled air, thereby enhancing the chute's effectiveness and durability.
Implementation Method 1
The refrigeration unit draws air from the bottom of the refrigeration trailer into the refrigeration unit through the air intake, cools the air, and expels the cooled air into the upper portion of the refrigeration trailer through the air outlet
Implementation Method 2
the air distribution chute is configured to guide the cooled air expelled from the air outlet toward the rear of the refrigeration trailer
Data Source
AI summary
Various embodiments of the present disclosure provide a refrigeration trailer air distribution chute. The chute includes a first air director attachable to a ceiling of a refrigeration trailer spanning a refrigeration unit and a side wall of the trailer, and a second air director attachable to and extending along the ceiling proximate the side wall to the rear of the trailer. The first air director is attachable to the ceiling along two lines of attachment, causing the first air director to have a cross section of a first shape regardless of whether the chute is in an unexpanded or an expanded state. The second air director is attachable to the ceiling along one line of attachment, causing the second air director to have a cross section of a second shape when the chute is in the unexpanded state and a third shape when the chute is in the expanded state.