Multi-Compartment Heat Exchange Modules for Precise Temperature Control
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Solution Overview
Problem
Existing temperature control systems for containers with multiple compartments lack the ability to independently and precisely control temperature in each compartment, especially when energy constraints are present, leading to inefficiencies in cooling and heating modes.
Innovation Solution
A temperature control system featuring a refrigeration circuit with a secondary fluid circuit that includes heat exchange modules, pumps, heaters, and three-way valves, allowing for independent temperature control in each compartment by managing the flow of secondary fluid between heat exchangers and a refrigeration interface, enabling precise temperature management and energy optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a refrigeration circuit with secondary fluid circuit and heat exchange modules is used, then precise temperature control in each compartment is achieved, but device complexity increases
Solution Approach 1:
The system divides the container into multiple compartments, each with its own heat exchange module containing a pump, heater, heat exchanger, and three-way valve. This segmentation allows independent temperature control in each compartment while maintaining a unified refrigeration circuit architecture, resolving the contradiction between precision control and system complexity.
Solution Approach 2:
The refrigeration circuit with primary fluid and secondary fluid circuits serves multiple functions: cooling through the refrigeration cycle, heating through electric heaters, and temperature maintenance through the three-way valve routing. This multi-functionality reduces the need for separate systems for each function, managing complexity while achieving precise temperature control.
2Measurement precision
If independent temperature control in each compartment is implemented, then temperature management precision is improved, but energy consumption increases
Solution Approach 1:
Multiple heat exchange modules are merged into a unified refrigeration circuit system with a common primary fluid circuit. The secondary fluid circuits of different modules can be coordinated through the control system, allowing heat exchange optimization where heat from one compartment can be utilized by another, reducing overall energy consumption while maintaining independent temperature control precision.
Solution Approach 2:
The system dynamically changes operating parameters including the routing of secondary fluid through three-way valves, the speed of pumps, and the power output of heaters based on real-time temperature requirements. This parameter optimization allows the system to achieve precise temperature control while minimizing energy consumption by adjusting to actual load conditions rather than operating at fixed high-power states.
3Adaptability or versatility
If three-way valves are used to control secondary fluid flow, then temperature control flexibility is improved, but device complexity increases
Solution Approach 1:
The three-way valves are dynamically controlled to route secondary fluid flow between different paths based on temperature requirements. The valves can switch between connecting the heat exchanger to the evaporator for cooling, to the condenser for heating, or to recycle fluid within the module. This dynamic routing provides temperature control flexibility while using a standardized valve design that manages complexity through repetition rather than unique complex mechanisms for each compartment.
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 achieves precise temperature control in each compartment, allowing for simultaneous heating or cooling of multiple compartments with reduced energy consumption by optimizing the flow of secondary fluid and using the refrigeration circuit efficiently, even under energy constraints.
Implementation Method 1
a heat exchanger positioned within the respective interior load space
Implementation Method 2
transfer heat from the secondary fluid to the primary fluid
Implementation Method 3
a pump configured to pump the secondary fluid
Implementation Method 4
a heater selectively operable to heat the secondary fluid
Implementation Method 5
a three-way valve configured to control the flow of the secondary fluid through the respective heat exchange module
Data Source
AI summary
A temperature control system for a container includes a refrigeration circuit having a primary fluid circulating therein and a secondary fluid circuit in communication with a first compartment of the container and a second compartment of the container. The secondary fluid circuit has a secondary fluid separate from the primary fluid circulating therein. The secondary fluid circuit includes a first heat exchange module in communication with an interior load space of the first compartment and a second heat exchange module in communication with an interior load space of the second compartment. Each of the first and second heat exchange modules includes a pump, a heater, a heat exchanger, and a three-way valve. A heat exchange interface between the refrigeration circuit and the secondary fluid circuit is operable to transfer heat from the secondary fluid to the primary fluid.