Micro-Channel Condenser Angled Layout for Mixed-Air Compressor Cooling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing refrigeration systems face inefficiencies in heat rejection and compressor cooling due to inadequate air flow and temperature management, leading to overheating and reduced cooling capacity.
Innovation Solution
A heat rejection system featuring a micro-channel condenser positioned at a 45-degree angle with respect to the compressor, combined with a condenser fan that draws heated air and fresh air to create mixed air for enhanced cooling of the compressor, increasing air flow and heat transfer efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional condenser configuration is used, then the structure is simple, but the heat rejection efficiency is insufficient and compressor cooling is inadequate
Solution Approach 1:
The condenser is positioned at a 45-degree angle relative to the compressor axis, transitioning from conventional parallel or perpendicular arrangements. This angular configuration optimizes the spatial relationship between heat rejection and compressor cooling, allowing heated air to be directed more effectively toward the compressor while maintaining structural simplicity
Solution Approach 2:
The condenser serves dual functions: rejecting heat from the refrigerant and simultaneously cooling the compressor through thermal communication. By positioning the condenser to thermal communicate with the compressor exterior surface and directing heated air toward it, the system eliminates the need for separate cooling mechanisms, improving productivity without proportionally increasing complexity
2Temperature
If air flow is increased to improve cooling, then compressor cooling effectiveness improves, but energy consumption increases
Solution Approach 1:
The system converts the harmful effect of heated air (which would normally be wasted or cause overheating) into a beneficial cooling resource. The condenser heats air, and this same heated air is then directed through thermal communication to cool the compressor. The condenser fan draws this heated air and directs it toward the compressor, transforming a potential harm into a useful cooling function, improving temperature control without requiring additional energy-intensive cooling systems
Solution Approach 2:
The condenser and fan system serves the dual purpose of heat rejection and compressor cooling. The heated air from the condenser is reused to cool the compressor, creating a self-sufficient thermal management system that reduces the need for additional energy-consuming cooling components
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 configuration enhances air flow by 8% and increases heat transfer by 3%, effectively cooling the compressor and improving the refrigeration system's efficiency by directing heated air with increased velocity and mixed air with higher thermal capacity towards the compressor.
Implementation Method 1
The condenser is adapted to reject heat from the refrigerant delivered through the condenser and deliver the heat to process air to define heated air
Implementation Method 2
The condenser is in thermal communication with at least an exterior surface of the compressor
Implementation Method 3
A condenser fan is positioned between the condenser and compressor. The fan is adapted to draw the heated air from the condenser and also draw fresh air from an area laterally adjacent to the machine compartment
Data Source
AI summary
A refrigerator includes a cabinet defining a refrigerated compartment and a machine compartment. A compressor is disposed within the machine compartment and is adapted to compress a refrigerant within a refrigerant line. A micro-channel condenser is positioned in communication with the compressor and adapted to selectively reject heat from the refrigerant into the machine compartment. A condenser fan is positioned within the machine compartment between the condenser and compressor. The fan is adapted to draw heated air through the condenser and also draw fresh air from an area adjacent the machine compartment and beneath the refrigerated compartment. The heated air and fresh air combine to define mixed air that is directed toward the compressor for cooling the compressor.