Body-Panel Heat Exchanger Layout for Low-Drag Vehicle Cooling
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Solution Overview
Problem
Conventional heat exchangers in vehicles are aerodynamically inefficient, contributing significantly to aerodynamic drag, which negatively affects vehicle speed, fuel economy, and overall performance.
Innovation Solution
An aerodynamic heat exchanger design that utilizes free convection, radiation, and forced convection modes, integrated with vehicle body panels, featuring fluidly-separate chambers and airfoil-shaped front suspension struts to minimize drag, and uses a water-glycol mixture to reduce refrigerant circulation and weight, while being easily serviceable and mass-producible.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional heat exchanger designs are used, then heat rejection capacity is adequate, but aerodynamic drag increases significantly
Solution Approach 1:
The heat exchanger is merged with the vehicle body panel, forming an integrated structure where the heat exchanger channels are formed within the panel itself. This eliminates the need for separate protruding heat exchanger components and reduces aerodynamic drag while maintaining heat rejection capacity.
Solution Approach 2:
The heat exchanger transitions from a three-dimensional protruding structure to a two-dimensional planar integration within the body panel. The heat exchanger channels are formed as cavities or passages within the panel thickness, allowing heat exchange functionality without adding external drag-inducing structures.
2Temperature
If conventional heat exchanger designs are used, then cooling demand is met, but vehicle fuel economy deteriorates
Solution Approach 1:
The heat exchanger is merged with the vehicle body panel, forming an integrated structure where the heat exchanger channels are formed within the panel itself. This eliminates the need for separate protruding heat exchanger components and reduces aerodynamic drag while maintaining heat rejection capacity.
Solution Approach 2:
The design converts the previously harmful aerodynamic drag into beneficial natural convection currents. The streamlined body panel design allows air to flow smoothly over the surface, creating natural convection patterns that enhance heat rejection without requiring additional energy input.
3Loss of energy
If conventional heat exchanger designs are used, then heat transfer effectiveness is adequate, but aerodynamic efficiency decreases
Solution Approach 1:
The heat exchanger transitions from a three-dimensional protruding structure to a two-dimensional planar integration within the body panel. The heat exchanger channels are formed as cavities or passages within the panel thickness, allowing heat exchange functionality without adding external drag-inducing structures.
Solution Approach 2:
The design converts the previously harmful aerodynamic drag into beneficial natural convection currents. The streamlined body panel design allows air to flow smoothly over the surface, creating natural convection patterns that enhance heat rejection without requiring additional energy input.
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 achieves effective heat transfer with negligible aerodynamic drag, improving fuel economy and vehicle performance by reducing energy consumption and enhancing aerodynamic characteristics, allowing the vehicle to travel further on a single charge.
Implementation Method 1
An aerodynamic heat exchanger design that utilizes free convection, radiation, and forced convection modes
Implementation Method 2
An aerodynamic heat exchanger design that utilizes free convection, radiation, and forced convection modes
Implementation Method 3
An aerodynamic heat exchanger design that utilizes free convection, radiation, and forced convection modes
Implementation Method 4
An aerodynamic heat exchanger that eliminates, or substantially eliminates, flow separation occurring over the heat exchanger
Implementation Method 5
Aerodynamic drag, or air resistance, is a force that the oncoming air applies to the vehicle when it is moving
Data Source
AI summary
An aerodynamic vehicle includes an aerodynamic heat exchanger formed as one or more body panels disposed along an outer surface of the vehicle having one or more fluidic chambers or micro-channels. The aerodynamic heat exchanger is adapted to provide effective and highly efficient heat transfer, and also to provide substantially reduced or negligible contribution to the aerodynamic drag. The aerodynamic heat exchanger may provide adequate heat rejection capacity throughout vehicle operating conditions that advantageously results in increased fuel economy and overall vehicle performance.