Flow Vector Assembly for Hybrid Geothermal Heating
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Solution Overview
Problem
Current geothermal systems face inefficiencies due to oversizing for heating dominant applications, leading to high utility costs and mechanical limitations that restrict simultaneous operation of heat pumps and fossil fuel furnaces, resulting in either/or operating sequences and excessive use of electrical resistance elements.
Innovation Solution
A geothermal system with a flow vector assembly that allows selective and automatic diversion of refrigerant to multiple heat exchangers, enabling a supplemental heat sequence of operation and minimizing the use of resistive elements, while optimizing energy use based on economic and environmental considerations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If geothermal systems are oversized for heating dominant applications, then heating capacity is improved, but operating costs increase and mechanical limitations occur
Solution Approach 1:
The system dynamically switches between different heat sources (geothermal heat pump and fossil fuel furnace) based on outdoor temperature and heating demand. The flow vector assembly enables dynamic refrigerant flow distribution to optimize the contribution of each heat source, allowing the system to operate efficiently across varying conditions without requiring permanent oversizing.
Solution Approach 2:
The system combines multiple heat source functions (geothermal heat pump and fossil fuel furnace) into a single hybrid system that can operate in different modes. The flow vector assembly provides multi-functionality by directing refrigerant flow to different heat exchangers based on operating conditions, enabling the system to serve both heating and cooling needs while optimizing energy costs.
2Power
If geothermal systems are oversized for heating dominant applications, then heating capacity is improved, but device complexity increases
Solution Approach 1:
The flow vector assembly acts as an intermediary device that manages refrigerant flow between the heat pump and fossil fuel furnace. This intermediary component enables seamless coordination between the two heat sources, allowing them to operate simultaneously or sequentially without mechanical conflicts, thereby reducing overall system complexity compared to traditional either/or configurations.
Solution Approach 2:
The system merges the geothermal heat pump and fossil fuel furnace into a unified hybrid system with integrated refrigerant flow management. By combining these components and their control systems into a single coordinated unit, the patent reduces the mechanical complexity that would arise from separate, independently controlled systems.
3Use of energy by moving object
If traditional heat pump systems operate below balance point, then heat pump efficiency is maintained, but auxiliary heat source operation is required
Solution Approach 1:
The system dynamically adjusts the operating mode based on outdoor temperature relative to the balance point. Above the balance point, the heat pump operates independently with high efficiency. Below the balance point, the system dynamically transitions to hybrid mode where the fossil fuel furnace provides supplemental heat, allowing continuous efficient operation across all temperature conditions without manual intervention.
Solution Approach 2:
The system uses feedback from outdoor temperature sensors and balance point calculations to automatically determine the optimal operating sequence. This feedback mechanism enables the system to maintain heat pump efficiency above the balance point while automatically activating the auxiliary heat source below the balance point, providing flexible and adaptive operation without user input.
4Power
If electrical resistance elements are used for auxiliary heating, then heating capacity is improved, but operating costs increase significantly
Solution Approach 1:
The system replaces expensive electrical resistance elements with a fossil fuel furnace that provides auxiliary heating at lower operating costs. The fossil fuel furnace acts as a cost-effective supplemental heat source that can be activated when the heat pump operates below the balance point, significantly reducing the high utility costs associated with electrical resistance heating.
Solution Approach 2:
The system changes the heat source parameter from electrical resistance (high cost) to fossil fuel combustion (lower cost) when operating below the balance point. This parameter change in the auxiliary heating method allows the system to maintain heating capacity while dramatically reducing operating costs associated with supplemental heating.
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 solution reduces the need for oversized systems, lowers operating costs, and allows for simultaneous operation of heat pumps and fossil fuel furnaces, enhancing dehumidification and reducing the reliance on expensive electrical resistance elements.
Implementation Method 1
A geothermal system having a heat pump connected to and in fluid communication with a flow vector assembly... A cooling coil and a heating coil, both of which are positioned in the duct work of a furnace, are connected to and in fluid communication with the flow vector assembly.
Implementation Method 2
In a cooling mode refrigerant flows from the heat pump to the flow vector assembly, then to the cooling coil where liquid refrigerant is flashed into gas, and the heated gas flows back to the flow vector assembly and then to the heat pump.
Implementation Method 3
In a heating mode hot gas flows from the heat pump to the flow vector assembly and is diverted to the heating coil where the hot gas is condensed into liquid. From the heating coil the liquid flows back to the flow vector assembly and then to the heat pump.
Implementation Method 4
A geothermal system having a heat pump connected to and in fluid communication with a flow vector assembly
Data Source
AI summary
A geothermal system having a flow station connected to a heat pump that is connected to a heat pump that is connected to a flow vector assembly. The flow vector assembly is connected to a heating coil and a cooling coil disposed within the ductwork of a furnace. The flow vector assembly may also be connected to a flow helix heat exchanger assembly.