Heat source storage system utilizing solar power generation
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Solution Overview
Problem
Solar power generation systems face challenges with power fluctuations due to weather and time, leading to inefficient storage and utilization of generated power, and existing cold heat source methods are limited to cold regions.
Innovation Solution
A system that utilizes solar power to operate a freezer for cold heat source storage and a heater for hot heat source storage, incorporating heat exchange devices to convert electrical energy into thermal energy, which can be circulated and distributed externally, allowing for effective power utilization without battery storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If solar power is stored in storage batteries, then power can be accumulated for later use, but the storage capacity becomes a limiting factor and power loss is large
Solution Approach 1:
The invention changes the storage medium from electrical energy (batteries) to thermal energy (ice or hot water), fundamentally altering the storage parameter from electrical capacity to thermal mass. This allows virtually unlimited storage capacity constrained only by the physical space of storage tanks, while eliminating battery-related power losses through direct thermal storage of solar energy
Solution Approach 2:
The invention replaces the electrochemical storage system (batteries) with a thermal storage system using phase change (freezing water to ice) or sensible heat storage (heating water). This substitution eliminates the need for battery charge/discharge cycles that cause power loss, achieving near-zero loss storage by directly converting solar thermal energy to stored thermal energy
2Loss of energy
If ice storage chambers are used for cold heat source, then cooling energy is reduced in summer, but the method is limited to cold districts only
Solution Approach 1:
The invention creates a universal thermal storage system that can provide both cooling (cold heat source) and heating (hot heat source) functions. By incorporating both freezer and heater units that store thermal energy in water tanks, the system becomes adaptable to any geographic location and seasonal requirement, eliminating the cold-district-only limitation while reducing cooling energy consumption
3Loss of energy
If solar power is converted to thermal energy for storage, then power loss is reduced and storage capacity increases, but the system complexity increases
Solution Approach 1:
The invention merges the solar power generation, thermal conversion, thermal storage, and heat distribution functions into an integrated system. The solar panels directly drive freezers or heaters that store thermal energy in water tanks, which then serve as both storage medium and distribution medium through heat exchange devices, simplifying the overall system architecture while achieving low power loss and high storage capacity
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 approach enables efficient use of solar-generated power by converting it into a stable thermal energy form, reducing power loss and making it usable across various locations, independent of seasonal limitations, thus enhancing the utilization of solar energy.
Implementation Method 1
A solar power generation device 10
Implementation Method 2
a freezer (21) operated by directly utilizing the output power of a solar power generation device (10)
Implementation Method 3
a heat exchange device (23, 24) installed in the cold heat source storage chamber (20) for delivering water, which is heat-exchanged with the air in the cold heat source storage chamber (20), to the outside
Implementation Method 4
a heater (31) operated by directly utilizing the output power of a solar power generation device (10)
Data Source
AI summary
Electric power is accumulated in another form without using a storage battery so as to more effectively utilize electric power generated by solar power generation. A cold heat source storage system includes a freezer operated by directly utilizing the output power of a solar power generation device, a cold heat source storage chamber cooled by the freezer, a number of water tanks installed in the cold heat source storage chamber, and a heat exchange device installed in the cold heat source storage chamber. The system can be included in heat source storage system, which includes a heater operated by directly utilizing the output power of the solar power generation device, a heat source storage tank which stores water heated by the heater, and a heat exchange device installed in the hot heat source storage tank.