Transport refrigeration system
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Solution Overview
Problem
Transport refrigeration systems with mobile bulkheads face inefficiencies and safety risks due to the inability to dynamically adjust cooling capacity based on the position and volume of the bulkhead within the cargo container, leading to potential damage to goods and equipment.
Innovation Solution
A method using sensors to determine the distance between the mobile bulkhead and the heat-absorbing heat exchanger, allowing the transport refrigeration system to adjust its operation to match the cooling capacity to the compartment volume, prevent damage, and ensure efficient cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the transport refrigeration unit operates with fixed cooling capacity, then the system structure is simple, but energy efficiency deteriorates when bulkhead position changes
Solution Approach 1:
The refrigeration system transitions from fixed cooling capacity to dynamic adjustable cooling capacity. The control system continuously monitors bulkhead position via sensors and automatically adjusts the cooling capacity of the refrigeration unit to match the actual compartment volume, ensuring optimal energy efficiency across varying operational conditions without requiring manual intervention or complex mechanical modifications.
Solution Approach 2:
The system implements a closed-loop feedback mechanism where sensors detect the bulkhead position and transmit this information to the control system. The control system processes this data and adjusts the refrigeration unit's cooling capacity accordingly. This feedback loop enables the system to automatically adapt to changing compartment volumes, maintaining high energy efficiency while using straightforward control logic.
2Manufacturing precision
If the cooling capacity is not adjusted to compartment volume, then the operation is simple, but temperature control precision deteriorates leading to potential damage to goods
Solution Approach 1:
The refrigeration system performs self-adjustment based on bulkhead position detection. The control system automatically calculates the compartment volume from sensor data and configures the appropriate cooling capacity without requiring manual input from operators. This self-service capability ensures precise temperature control while maintaining operational simplicity, as the system handles all adjustments autonomously.
Solution Approach 2:
The system dynamically changes the cooling capacity parameter based on the detected bulkhead position and calculated compartment volume. By adjusting this key operational parameter in real-time, the system achieves precise temperature control for varying cargo volumes while keeping the user interface simple and the operational process straightforward.
3Object-affected harmful factors
If the bulkhead is positioned close to the heat-absorbing heat exchanger, then the compartment volume is reduced, but harmful factors increase due to insufficient airflow and potential damage
Solution Approach 1:
The control system proactively prevents harmful conditions by monitoring the distance between the bulkhead and heat-absorbing heat exchanger. When the bulkhead approaches positions that could cause airflow restriction or equipment damage, the system preemptively adjusts the cooling capacity and may trigger warnings or restrictions to prevent damage before it occurs. This preliminary protective action safeguards both equipment and goods without requiring physical barriers or complex mechanical constraints.
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
This approach enhances energy efficiency, operational safety, and prevents damage to the refrigeration unit and goods by ensuring appropriate cooling capacity and airflow, thereby improving the overall performance of the transport refrigeration system.
Implementation Method 1
using a sensor to determine a distance between a mobile bulkhead in a cargo container and a heat-absorbing heat exchanger
Implementation Method 2
heat-absorbing heat exchanger of a transport refrigeration unit arranged to cool the cargo container
Data Source
AI summary
A transport refrigeration system is provided comprising a cargo container and a transport refrigeration unit arranged to cool the cargo container. The cargo container is equipped with a mobile bulkhead that partitions the interior of the cargo container. The transport refrigeration unit comprises a heat-absorbing heat exchanger positioned in fluid communication with the interior of the cargo container. The transport refrigeration system is further provided with a sensor configured to determine a distance between the mobile bulkhead and the heat-absorbing heat exchanger. A method of operating a transport refrigeration system is also provided.