Evaporative Condenser Cooling for Lower Refrigerator Energy Use
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Solution Overview
Problem
Current methods for reducing energy consumption in household appliances, such as refrigerators, are costly due to the use of expensive components like vacuum panels, and there is a lack of practical applications for evaporative cooling processes in these devices.
Innovation Solution
An evaporative cooling condenser system for household appliances that includes a water source, condenser coil, and fluid heat transfer device, which lowers the condenser temperature by using water to reject heat, thereby increasing heat absorption and reducing energy consumption without increasing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If vacuum panels are used to decrease heat entering the refrigerator, then energy consumption is reduced, but the total cost of the appliance increases due to expensive parts
Solution Approach 1:
The patent replaces expensive vacuum panels with a low-cost evaporative cooling system using water and simple heat exchange components. The system uses inexpensive materials like water-saturated pads, fans, and basic heat exchangers to achieve energy reduction without increasing manufacturing cost
Solution Approach 2:
The patent changes the operating parameters of the condenser by introducing evaporative cooling, which lowers the condensing temperature and improves system efficiency. This parameter change achieves energy reduction through thermodynamic optimization rather than expensive insulation
2Use of energy by moving object
If evaporative cooling is applied to reduce condenser temperature and increase heat absorption, then energy use decreases, but a practical method for household appliances has not been developed
Solution Approach 1:
The patent divides the cooling system into distinct functional modules: evaporative cooling section with water-saturated pads, condenser coil section, and airflow section with fan. This segmentation allows independent optimization of each component and simplifies the overall system design for household appliance integration
Solution Approach 2:
The patent introduces water as an intermediary substance that facilitates heat transfer from the condenser to the ambient air through evaporation. This simple intermediary enables the cooling effect without requiring complex mechanical systems, making the technology practical for household appliances
3Productivity
If condenser temperature is reduced to increase refrigerant heat absorption, then cooling capacity increases, but the system requires practical implementation method
Solution Approach 1:
The evaporative cooling system is designed to be self-regulating, where the evaporation of water naturally provides cooling without requiring external control systems. The system uses ambient air flow and natural evaporation processes to maintain optimal condenser temperature, achieving high cooling capacity with simple implementation
Solution Approach 2:
The patent uses hydraulic principles by circulating water through the evaporative cooling pads and utilizing the phase change from liquid to vapor. This hydraulic approach provides efficient heat transfer and cooling with simple, reliable components that are easy to manufacture and implement in household appliances
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 enhances cooling capacity while reducing energy usage and costs by allowing the refrigerant to absorb more heat, with a one-degree Fahrenheit reduction in condenser temperature potentially lowering energy use by one percent or more.
Implementation Method 1
a fluid heat transfer device configured to receive water from the water source and apply the water to the condenser coil to enable the condenser coil to reject heat
Implementation Method 2
apply the water to the condenser coil to enable the condenser coil to reject heat
Data Source
AI summary
An evaporative cooling condenser for a household appliance cooling system includes a water source, a heat exchanger configured to contain a refrigerant, and a fluid heat transfer device, the fluid heat transfer device configured to receive water from the water source and apply the water to the heat exchanger for rejecting heat from the heat exchanger.