Supercritical CO2 Generation System With Plural Heat Sources
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Supercritical CO2 generation systems typically rely on a single heat source, leading to complex system configurations and inefficient heat utilization due to the difficulty in effectively using plural constrained heat sources.
Innovation Solution
A supercritical CO2 generation system utilizing plural heat sources, including constrained and general heat sources with emission regulation conditions, and a network of heat exchangers and recuperators to optimize heat exchange and fluid flow, allowing for efficient operation and reduced system complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If plural constrained heat sources are applied, then heat utilization efficiency is improved, but system configuration becomes complicated
Solution Approach 1:
The patent combines multiple heat sources (supercritical CO2 heater, subcritical water heater, organic solvent heater) into a unified heat exchange network where they share common heat exchangers and working fluid circuits. This merging approach allows efficient utilization of multiple heat sources while avoiding the complexity of completely separate systems for each heat source.
Solution Approach 2:
The heat exchangers and working fluid circuits are designed to serve multiple functions simultaneously - the same heat exchanger can receive heat from different heat sources at different times or conditions, and the working fluid system can operate in different modes (supercritical CO2 cycle, subcritical water cycle, organic solvent cycle) depending on the heat source being utilized.
2Productivity
If plural heat sources with emission regulation conditions are used, then power generation efficiency is improved, but system operation becomes difficult
Solution Approach 1:
The system incorporates automatic control mechanisms that enable self-regulation of the heat exchange processes. The control system automatically adjusts operating parameters (flow rates, temperatures, pressures) based on the emission regulation conditions of each heat source, reducing the need for manual intervention and simplifying operation despite the complexity of multiple heat sources with different constraints.
Solution Approach 2:
The system employs feedback control where sensors monitor the emission conditions and operating parameters of each heat source, and the control system adjusts the heat exchange processes accordingly. This ensures that the emission regulation conditions are met while maintaining optimal power generation efficiency, and the automated feedback loop simplifies the operation by handling the complexity of coordinating multiple constrained heat sources.
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 enhances the efficiency of heat utilization and simplifies system operation by allowing the use of the same or fewer recuperators compared to heat sources, improving power generation efficiency and reducing system size.
Implementation Method 1
a pump (100) for circulating the working fluid
Implementation Method 2
a plurality of heat exchangers (310, 330, 350, 370) for heating the working fluid using an external heat source
Implementation Method 3
a plurality of turbines (410, 430) which are operated by the working fluid heated by passing through the heat exchangers
Implementation Method 4
a plurality of recuperators (210, 230, 250) for cooling the working fluid passing through the turbines by heat exchange between the working fluid passing through the turbines and the working fluid passing through the pump
Data Source
AI summary
The present invention relates to the supercritical CO2 generation system applying plural heat sources. The supercritical CO2 generation system applying plural heat sources includes a pump circulating a working fluid; a plurality of heat exchangers heating the working fluid using an external heat source and including a plurality of constrained heat sources having an emission regulation condition of an outlet end thereof and a plurality of general heat sources without the emission regulation condition; a plurality of turbines operated by the working fluid heated by passing through the heat exchangers; and a plurality of recuperators cooling the working fluid passing through the turbines by heat exchange between the working fluid passing through the turbines and the working fluid passing through the pump, wherein the working fluid passing through the turbine is branched into the recuperators, respectively.