Modular Boiler Unit Design for Independent CHP Device Integration
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Solution Overview
Problem
Existing domestic boiler units lack the ability to efficiently integrate combined heat and power (CHP) systems, limiting their operational flexibility and requiring complex installation processes, which increases costs and safety risks.
Innovation Solution
A modular boiler unit design that can accommodate a solid state CHP device or a Stirling/Rankine engine, featuring a control unit for independent operation of both heating and CHP systems, allowing for separate heat transfer mechanisms and easy upgrade or removal of the CHP device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a boiler unit is designed to integrate a CHP device, then the adaptability and versatility of the boiler unit is improved, but the device complexity increases
Solution Approach 1:
The boiler unit is divided into separate functional modules: a heating device module and a CHP device module. Each module can be independently controlled and operated. The heating device includes a burner, heat exchanger, and circulation pump, while the CHP device includes a fuel cell stack, reformer, and control system. This segmentation allows the boiler to function as a standalone heating system while providing the option to integrate a CHP device for combined heat and power generation, thereby improving adaptability without permanently increasing structural complexity.
Solution Approach 2:
The boiler unit is designed with universal compatibility to accommodate different types of CHP devices (solid state, Stirling engine, Rankine engine). The control unit can independently manage both heating-only mode and combined heat and power mode. The system includes universal connection points and standardized interfaces that allow various CHP technologies to be integrated into the same boiler platform, enhancing versatility while maintaining a consistent base structure.
2Adaptability or versatility
If the CHP device is integrated into the boiler unit, then the operational flexibility is improved, but the installation complexity and safety risks increase
Solution Approach 1:
The boiler unit is pre-configured with dedicated mounting locations, connection interfaces, and routing pathways for CHP device integration during the manufacturing process. Electrical connections, fluid pathways, and mechanical mounting points are prepared in advance, allowing the CHP device to be installed as a plug-and-play module rather than requiring complex custom integration work. This preliminary preparation significantly reduces installation complexity and safety risks while maintaining operational flexibility.
3Adaptability or versatility
If the boiler unit is designed to accommodate CHP device, then the adaptability is improved, but the manufacturing cost increases
Solution Approach 1:
The boiler unit is manufactured as a base heating system with standardized modules. The CHP device is produced as a separate, independent module that can be manufactured through different supply chains. This segmentation allows the base boiler to be manufactured at standard production volumes, while CHP devices can be produced separately and integrated later, avoiding the need to manufacture complex integrated systems at low volumes, thereby controlling manufacturing costs while maintaining adaptability.
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
Enables independent operation of the boiler unit without the CHP device, simplifies installation by allowing separate shipment and installation of components, reduces labor and costs, and provides a flexible upgrade path with minimal service disruption.
Implementation Method 1
The fuel cell stack assembly may include a number of individual fuel cells arranged in a stack configuration
Implementation Method 2
a steam generator, a steam and fuel gas mixer, a steam reformer unit, a heat exchange unit to transfer thermal energy from the reformate exiting the reformer area to the seam generator unit
Implementation Method 3
a heat exchange unit to transfer thermal energy from the reformate exiting the reformer area to the seam generator unit
Data Source
AI summary
A boiler unit (100) housed in an enclosure, the boiler unit (100) configured to receive a solid state combined heat and power generating device (130). The boiler unit (100) comprises a heating device (110) to produce heat; and a control unit (120) to independently control each of the heating device (110) and the solid state combined heat and power generating device (130). The boiler unit (100) is operable without the solid state combined heat and power generating device (130) being present.