Compressor-less cooling system
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Solution Overview
Problem
Conventional vapor-compression refrigeration systems are inefficient, require high maintenance, and generate noise, while they also rely on hydrofluorocarbons that have a significant environmental impact and are not easily adaptable to natural refrigerants like carbon dioxide for high-capacity commercial applications.
Innovation Solution
A compressor-less cooling system that separates refrigerants into vapor and liquid components, using a heat exchanger to remove heat from a space and a compressor-less heat separator to transfer heat to a second refrigerant with electrical power, eliminating the need for compressors and allowing the use of natural refrigerants like carbon dioxide.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional vapor-compression refrigeration systems are used, then cooling function is provided, but system efficiency is low and maintenance requirements are high
Solution Approach 1:
The patent removes the compressor component from the traditional vapor-compression refrigeration cycle, extracting the problematic element that causes inefficiency and maintenance issues. The system replaces mechanical compression with an alternative heat transfer mechanism using a heat separator that transfers heat from the vapor phase refrigerant to the liquid phase refrigerant without requiring a compressor.
Solution Approach 2:
The patent substitutes the mechanical compression system with a thermal field-based heat separator system. Instead of using mechanical energy to compress the refrigerant vapor, the system uses heat transfer between phases and a heat separator to achieve the necessary pressure and temperature changes, replacing mechanical action with thermal processes.
2Power
If conventional vapor-compression systems are used, then cooling capacity is achieved, but noise is generated
Solution Approach 1:
The patent extracts the noise-generating compressor component from the system while maintaining the cooling capacity through an alternative heat transfer mechanism. The heat separator and phase separation system provide the necessary refrigeration effect without the mechanical noise associated with compressors.
3Productivity
If hydrofluorocarbon refrigerants are used, then cooling performance is optimized, but environmental impact increases
Solution Approach 1:
The patent changes the refrigerant parameter from hydrofluorocarbon (HFC) to natural refrigerants such as carbon dioxide (CO2). This parameter change allows the system to maintain cooling performance while significantly reducing environmental impact, as natural refrigerants have zero or negligible ozone depletion potential and lower global warming potential compared to HFCs.
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 compressor-less cooling system achieves higher efficiency, reduced maintenance, lower noise levels, and a reduced environmental impact by avoiding the inefficiencies and maintenance issues of traditional vapor-compression systems and enabling the use of environmentally friendly natural refrigerants.
Implementation Method 1
The separator tank separates a first refrigerant into a vapor component and a liquid component
Implementation Method 2
The heat exchanger uses the liquid component of the first refrigerant to remove heat from a space proximate to the load
Implementation Method 3
The compressor-less heat separator extracts heat from the vapor component of the first refrigerant and uses electrical power to move the heat to a second refrigerant
Implementation Method 4
The fluid cooler removes heat from the second refrigerant
Data Source
AI summary
An apparatus includes a separator tank, a heat exchanger, a compressor-less heat separator, and a fluid cooler. The separator tank separates a first refrigerant into a vapor component and a liquid component. The heat exchanger is exposed to a load. The heat exchanger uses the liquid component of the first refrigerant to remove heat from a space proximate the load. The space includes at least one of a refrigeration unit and walk-in cooler or freezer. The compressor-less heat separator extracts heat from the vapor component of the first refrigerant and uses electrical power to move the heat to a second refrigerant. The fluid cooler removes heat from the second refrigerant.