Solar Adsorption Compressor Modules for Small-Scale Air Conditioning
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Solution Overview
Problem
Existing environmental conditioning plants, particularly those using solar energy, are complex and costly, making them unsuitable for small-scale applications such as domestic use due to their constructional complexity and management requirements.
Innovation Solution
A solar compressor device utilizing porous adsorbent materials like zeolite, with a movement system for heat-exchange modules to switch between solar radiation exposure and shading, controlled by a unit that synchronizes fluid access and discharge to optimize energy harvesting and usage, allowing for efficient climate control in smaller environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If solar energy is used to power the compressor device, then energy sustainability is improved, but device complexity increases due to multiple heat-exchange modules and movement systems
Solution Approach 1:
The solar compressor device is divided into multiple independent heat-exchange modules (first heat-exchange module, second heat-exchange module) that can operate independently or in combination. Each module contains its own porous adsorbent material and fluid circulation system, allowing the complex solar-powered compression function to be distributed across simpler, modular units that can be managed separately.
Solution Approach 2:
The device incorporates a movement system that dynamically switches between different operating modes: solar-powered mode (using solar radiation to drive the first heat-exchange module), grid-powered mode (using electrical power for the second heat-exchange module), and hybrid mode (combining both). This dynamic adaptability allows the system to optimize energy sustainability while managing complexity through flexible operational states.
2Adaptability or versatility
If multiple heat-exchange modules are used to enable both solar and grid power operation, then adaptability is improved, but ease of operation deteriorates due to synchronized fluid access and discharge control
Solution Approach 1:
The control system continuously monitors the operational state of both heat-exchange modules and automatically adjusts fluid access and discharge timing to maintain synchronized operation. When switching between solar and grid power modes, the system detects the active power source and coordinates the corresponding module's operation, eliminating the need for manual intervention and simplifying user operation despite the system's versatility.
Solution Approach 2:
The device autonomously manages the complexity of coordinating multiple heat-exchange modules through self-regulating control mechanisms. The system automatically handles fluid circulation synchronization, power source switching, and operational mode selection without requiring user intervention, thereby maintaining ease of operation while preserving high adaptability across different power sources and environmental conditions.
3Use of energy by moving object
If porous adsorbent material is used for solar energy harvesting, then energy efficiency is improved, but manufacturing precision requirements increase for integrating the material into heat-exchange modules
Solution Approach 1:
The porous adsorbent material is contained within discrete, modular heat-exchange units with defined boundaries and standardized interfaces. This segmentation allows the adsorbent material to be manufactured and tested independently before integration, reducing the precision requirements for the final assembly process while maintaining high energy efficiency through optimized material placement and configuration within each module.
Solution Approach 2:
The invention specifically employs porous adsorbent materials with controlled pore structures to enhance solar energy harvesting efficiency. These materials are integrated into heat-exchange modules designed with appropriate containment structures that accommodate the porous nature of the adsorbent while maintaining manufacturability. The modular design allows for standardized production of the porous material components separately from the mechanical housing, balancing energy efficiency requirements with manufacturing precision capabilities.
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 solution simplifies the design and operation of solar-powered climate control systems, enabling their use in low-power applications by efficiently harnessing solar energy and reducing energy consumption, while maintaining adaptability to different refrigeration potentials.
Implementation Method 1
the absorbent material comprises porous material (for example adsorbent material, preferably zeolite), preferably a porous adsorbent material which is able to absorb gas (steam in the case in which the operating fluid is water) during the cooling in the second operating condition and to yield gas (steam in the case in which the operating fluid is water) during the heating, in the first operating condition
Implementation Method 2
the reflector focuses incident solar radiation thereon towards the transparent wall
Implementation Method 3
a) a compression stroke, during which the piston moves from the first position to the second position, compressing a quantity of water vapour taken from the air, at a first pressure and a first temperature, to a second pressure and a second temperature
Implementation Method 4
at least one heat-exchange module comprising: a containing body of porous material... having at least one transparent wall in order to enable heat-exchange with an external environment
Data Source
Figure 1~2
Figure 3~4
Figure 5~5A
AI summary
A compressing device for environmental conditioning plants comprises an expansion unit of an operating fluid and a compressor device set in fluid communication with the expansion unit; the compressor device comprises at least a heat exchange module receiving the operating fluid and housing adsorbent material, and selector means for placing the heat exchange module in at least a first operating condition, in which the heat exchange module is exposed to solar radiation, and in at least a second operating condition, in which the heat exchange module is exposed to a cooling environment. Also described is a compressor device for the plant.