Parallel Recuperative Supercritical CO2 Generation System
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Solution Overview
Problem
The existing supercritical CO2 generation systems face inefficiencies due to pressure loss and inefficient heat exchange in series recuperator configurations, which reduce turbine work and increase costs.
Innovation Solution
A parallel recuperative supercritical CO2 generation system is designed with multiple heat exchangers and recuperators arranged in parallel, allowing for optimized flow rate distribution and temperature control to minimize pressure loss and enhance heat exchange efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If recuperators are arranged in series to maximize turbine work, then heat exchange coverage is improved, but pressure loss increases and heat exchange efficiency decreases
Solution Approach 1:
The recuperator is divided into multiple independent recuperator units arranged in parallel, with each unit handling a portion of the total working fluid flow. This segmentation reduces the pressure loss in each individual unit while maintaining comprehensive heat exchange coverage across all units collectively.
Solution Approach 2:
The system transitions from a single-series recuperator configuration to a multi-parallel recuperator arrangement, adding a dimensional aspect to the flow distribution. By introducing parallel pathways, the system achieves both reduced pressure loss (comparing to series) and maintained heat exchange effectiveness.
2Loss of energy
If series recuperator configuration is used to enhance heat exchange, then heat exchange coverage is improved, but heat exchange efficiency decreases due to pressure loss
Solution Approach 1:
The recuperator system is segmented into multiple parallel units, each operating at optimized flow rates that minimize pressure loss while maintaining effective heat exchange. This segmentation allows each unit to operate more efficiently than a single large series unit.
Solution Approach 2:
The system changes the flow distribution parameters by dividing the total flow into multiple parallel streams, each with optimized flow rates. This parameter change reduces the pressure loss exponentially while maintaining the overall heat exchange coverage through coordinated operation of all units.
3Device complexity
If series recuperator arrangement is adopted, then system complexity is reduced, but pressure loss increases leading to reduced turbine work
Solution Approach 1:
The recuperator is segmented into multiple parallel units with simplified internal structures compared to a single large series unit. Each unit handles a portion of the flow, reducing the complexity of flow management while maintaining or enhancing turbine work output.
4Power
If parallel recuperator configuration is used to reduce pressure loss, then turbine work is improved, but system complexity increases
Solution Approach 1:
The parallel recuperator configuration segments the system into multiple independent but identical units, which reduces pressure loss and enhances turbine work. The modular nature of this segmentation makes the increased complexity manageable through standardized design and operation.
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 configuration increases turbine work efficiency, reduces compression ratio loss, and lowers costs by maintaining uniform temperature distributions across heat exchangers and recuperators, while minimizing pressure loss and optimizing heat transfer.
Implementation Method 1
a plurality of recuperators (200) exchanging heat between the working fluid passing through the turbine and the working fluid passing through the compressor to cool the working fluid passing through the turbine
Implementation Method 2
a pre-cooler cooling the working fluid primarily cooled by the recuperator and supplying the cooled working fluid to the compressor
Implementation Method 3
a compressor compressing a working fluid
Implementation Method 4
a plurality of turbines driven by the working fluid
Data Source
AI summary
A supercritical CO2 generation system for a parallel recuperative type capable of improving generation efficiency and saving costs is disclosed. According to the supercritical CO2 generation system according to the exemplary embodiment, a compression ratio of a turbine can be increased by arranging recuperators in parallel, thereby maximizing work of the turbine.