CHP Energy Control Module for Waste Heat Temperature Balancing
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Solution Overview
Problem
Combined cooling, heat, and power systems face efficiency reduction in summer due to high waste heat temperatures, leading to potential system shutdowns and inefficient energy use, particularly in high-temperature regions and low-altitude areas with reduced heating demand.
Innovation Solution
A combined heat and power system with an energy control module that includes a power generator, a waste heat restoring unit, a heat source supply unit, and an energy control module using 3-way valves and temperature sensors to control the temperature of waste heat and recovered heat, ensuring suitable conditions for the waste heat restoring unit and preventing overheating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If waste heat is directly supplied to the waste heat restoring unit, then energy efficiency is improved, but the system reliability deteriorates due to overheating risks in high-temperature environments
Solution Approach 1:
The patent introduces a heat exchanger as an intermediary component between the power generator and the waste heat restoring unit. This heat exchanger mediates the thermal energy transfer, allowing waste heat to be utilized while preventing direct overheating of the restoring unit. The intermediary enables energy efficiency improvement without compromising system reliability by decoupling the direct thermal connection.
Solution Approach 2:
The patent implements temperature parameter control through the energy control module, which dynamically adjusts operating parameters based on environmental conditions. By changing the temperature parameter of waste heat before it reaches the restoring unit, the system maintains reliable operation even in high-temperature environments while still capturing usable thermal energy.
2Power
If the absorption chiller capacity is increased to meet cooling demand, then cooling performance is improved, but the system complexity increases due to dependency on hot water temperature and flow rate
Solution Approach 1:
The patent applies parameter changes by controlling the temperature and flow rate of hot water supplied to the absorption chiller through the energy control module. This dynamic parameter adjustment allows the system to optimize cooling capacity while simplifying the overall system design, as the control module manages the dependencies rather than requiring complex mechanical adjustments in the chiller itself.
3Loss of energy
If waste heat temperature is not controlled, then energy recovery is maximized, but the power generator operation is disrupted due to high temperature feedback
Solution Approach 1:
The heat exchanger serves as an intermediary that decouples the waste heat recovery process from the power generator operation. It allows energy recovery to proceed while preventing high-temperature feedback that would disrupt generator operation. The intermediary component enables both energy recovery and smooth operation to occur simultaneously without direct thermal interference.
Solution Approach 2:
The energy control module implements parameter changes by adjusting the temperature of waste heat before it is fed back to the power generator. This temperature control ensures that energy recovery is maximized while the feedback temperature remains within safe operating limits for the generator, maintaining ease of 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
The system ensures reliable waste heat supply and continuous operation by adjusting temperatures, improving energy efficiency and reducing the risk of overheating, thus enhancing the stability and performance of the power generator.
Implementation Method 1
a heat exchanger receiving waste heat from the power generator may be disposed between the first 3-way valve and the heat source supply unit
Data Source
AI summary
The present invention relates to a combined heat and power system with an energy control module. The system can easily increase the temperature of waste heat generated by a power generator or can easily increase the temperature of recovered heat recovered to the power generator.