Modular thermal energy storage system, improved method of operation of such systems and use of the thermal energy storage system
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current thermal energy storage (TES) systems face limitations in expanding dynamic temperature range, maintaining stable temperature of the heat transfer fluid, and increasing versatility and efficiency, which restricts their capacity and cost-effectiveness.
Innovation Solution
The implementation of a modular TES system with multiple blocks or zones that utilize a heat transfer fluid (HTF) flowing through a network of pipes, controlled by valves for serial and parallel flow configurations, allowing for dynamic temperature management and extended temperature ranges during charging and discharging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a single thermal energy storage system operates without modular blocks or zones, then the system structure is simple, but the dynamic temperature range is limited and storage capacity is restricted
Solution Approach 1:
The thermal energy storage system is divided into multiple blocks or zones, each capable of independent operation. This segmentation allows different blocks to operate at different temperature ranges simultaneously, expanding the overall dynamic temperature range of the system while maintaining manageable complexity through modular design
2Quantity of substance
If thermal energy storage capacity is increased by expanding system size, then more energy can be stored, but system cost and footprint increase
Solution Approach 1:
By dividing the storage system into modular blocks that can be configured in series or parallel, the system achieves increased storage capacity through efficient spatial utilization. The modular approach allows optimal arrangement of blocks to maximize energy density while minimizing overall system footprint and cost
Solution Approach 2:
The system dynamically configures block arrangements between series and parallel modes to optimize storage capacity utilization. This dynamic reconfiguration allows the same physical infrastructure to provide varying storage capacities based on operational requirements, effectively increasing usable capacity without expanding physical size
3Productivity
If heat transfer fluid flows through all blocks simultaneously in parallel, then charging and discharging rates are high, but temperature stability of the HTF deteriorates
Solution Approach 1:
The system dynamically switches between parallel and series flow configurations based on operational requirements. During high-power charging/discharging, blocks are connected in parallel for high flow rates. During temperature-stability-critical operations, blocks are connected in series to maintain stable HTF temperature, thus dynamically balancing productivity and temperature stability
4Adaptability or versatility
If the thermal energy storage system uses fixed flow configuration, then the system is easy to operate, but versatility and adaptability to different applications are reduced
Solution Approach 1:
The system employs dynamic reconfiguration of block arrangements between series and parallel modes through automated control systems. This allows the same physical system to adapt to different operational requirements (high power mode vs. temperature stability mode) without requiring manual intervention, thus achieving high versatility while maintaining ease of operation through automation
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 enhances thermal energy storage capacity by up to 60% and maintains stable outflow temperatures, improving overall efficiency and reducing system size and costs.
Implementation Method 1
heat is transferred in and out of the storage by means of a heat transfer fluid (HTF) that flows through a piping system
Implementation Method 2
Said elements preferably comprise a suitable solid-state material, such as special type of concrete, with properties serving the purpose of efficient transfer and storage of heat
Data Source
AI summary
Thermal energy storage (“TES”) includes at least two blocks or zones operated with respect to charging and discharging of thermal energy by flowing a heat transfer fluid (“HTF”) through the block or zone; an inlet charging manifold, an outlet charging manifold, an inlet pipe arranged from the inlet charging manifold to each block or zone; an outlet from each block or zone; and one or more of the valves: a flow control valve (vi1; va1, . . . ve1) arranged in at least one of block or zone inlet pipes, inlets, outlets and outlet pipes, for control of flow through the block or zone, a bypass valve (vi2; va2, . . . ve2) arranged in inlet charging side pipe sections between inlet pipe and serial flow return for the block or zone, for bypassing flow and serial flow control.