Conduit Module Valve Layout for Simultaneous Heating and Cooling
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Solution Overview
Problem
Existing heating and cooling systems, particularly those using heat pumps and geothermal fluid circuits, face inefficiencies in fluid flow control and balancing heating and cooling loads, which limits their ability to simultaneously utilize energy from both the evaporator and condenser effectively.
Innovation Solution
A conduit module with four three-way valves is introduced to couple a heating/cooling module with hot, cold, and source fluid circuits, allowing for simultaneous supply and return of heated and chilled fluids, enabling flexible operation modes such as primary heating, primary cooling, and simultaneous heating and cooling, while optimizing energy use by controlling fluid flow between the circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If traditional heating and cooling systems use separate circuits for heating and cooling, then each circuit can be independently controlled, but the system cannot simultaneously utilize energy from both the evaporator and condenser effectively
Solution Approach 1:
The patent combines the heating circuit and cooling circuit into a single integrated system that shares common components (compressor, evaporator, condenser, expansion devices) and uses a unified refrigerant flow path. This merging allows the system to simultaneously perform heating and cooling operations by strategically directing refrigerant flow through different components, thereby effectively utilizing energy from both the evaporator and condenser while reducing overall system complexity.
Solution Approach 2:
The refrigerant circuit is designed to perform multiple functions simultaneously - the evaporator can serve as both a cooling device and a heating source, while the condenser can function as both a heating device and a cooling sink. The system uses multi-position valves to redirect refrigerant flow, enabling the same components to adaptively serve different thermal loads, thus achieving both heating and cooling capabilities from a single universal circuit.
2Adaptability or versatility
If the system uses complex valve arrangements to control fluid flow for simultaneous heating and cooling, then operational flexibility is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple valve functions into a compact arrangement where two multi-position valves coordinate to control refrigerant distribution across four main circuit paths. This consolidated valve arrangement reduces the total number of separate components compared to traditional systems that would require multiple independent valves for each circuit transition, thereby achieving operational flexibility while minimizing device complexity.
Solution Approach 2:
The system introduces intermediate connection points and shared fluid pathways that act as mediators between the heating and cooling circuits. These intermediate elements allow the valves to control refrigerant flow more efficiently by providing common junctions where flow can be redirected, reducing the need for complex dedicated valve assemblies for each circuit transition.
3Adaptability or versatility
If the system is designed to handle unbalanced heating and cooling loads, then adaptability is improved, but excess capacity is generated
Solution Approach 1:
The patent implements a mechanism where the system can discard (bypass) portions of the refrigerant flow that would otherwise create excess capacity in one circuit while recovering and redirecting that flow to serve the other circuit with unbalanced demand. The multi-position valves enable selective routing of refrigerant to match the actual heating or cooling load requirements, preventing energy waste from oversized capacity in either the heating or cooling circuit.
Solution Approach 2:
The system employs dynamic flow control through multi-position valves that can continuously adjust refrigerant distribution ratios based on real-time heating and cooling load demands. This dynamic adaptability allows the system to optimize performance across varying load conditions, ensuring that capacity is matched to actual demand rather than operating at fixed oversized capacity, thereby reducing energy loss from excess capacity.
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 conduit module enhances energy efficiency by allowing simultaneous heating and cooling without reversing refrigeration flow direction, effectively managing unbalanced heating and cooling loads and reducing excess capacity, thereby optimizing the utilization of the heating/cooling module and source fluid circuit.
Implementation Method 1
a first heat exchanger adapted to heat the fluid being conveyed by the first inlet and first outlet conduits
Implementation Method 2
a second heat exchanger adapted to chill the fluid being conveyed by the second inlet and second outlet conduits
Data Source
AI summary
A heating and cooling system for use with hot, cold and source fluid circuits. A conduit module couples a heating/cooling module with the fluid circuits. The conduit module includes four three-way valves to communicated fluid from and to the fluid circuits to first and second heat exchangers in the heating/cooling module. The first heat exchanger is used to heat a fluid flow and the second one chills a second fluid flow. The conduit module simultaneously supplies a hot fluid flow to a hot fluid circuit and a cold fluid to a cold fluid circuit. The source fluid is routed by the conduit module.