Source Fluid Flow-Manager for Multi-Mode Heat Pump Thermal Exchange
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Solution Overview
Problem
Current thermal exchange systems for heating and cooling, particularly those utilizing heat pumps, face challenges in efficiently managing source fluid flow due to varying environmental and weather conditions, leading to high initial capital costs and complex management requirements, especially when integrating renewable energy sources like solar and geothermal energy.
Innovation Solution
A flexible source fluid flow-manager system incorporating three T-port valves and two source fluid pumps with multiple connection points, allowing for various modes of operation, is developed to selectively interconnect heat pumps with thermal exchange units, including underground and above-ground storage regions, dry coolers, and solar thermal collectors, using electronic or pneumatic actuators controlled by a digital or analogue controller.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If sophisticated thermal exchange systems integrating solar and geothermal energy are implemented, then thermal efficiency and renewable energy utilization are improved, but initial capital costs and system complexity increase significantly
Solution Approach 1:
The system is divided into separate functional modules: solar thermal collectors, geothermal heat exchangers, above-ground thermal storage, and underground thermal storage. Each component can be independently controlled and managed through the flow manager, reducing overall system complexity while maintaining high thermal efficiency through coordinated operation of segments
Solution Approach 2:
The flow manager enables a single system to perform multiple functions by selectively connecting different thermal sources and storage units. The same infrastructure can provide heating, cooling, and thermal energy storage using either solar or geothermal sources or both combined, eliminating the need for separate systems for each function
2Use of energy by moving object
If geothermal bore fields are drilled to augment dry cooler technology, then renewable energy utilization is improved, but drilling costs increase significantly
Solution Approach 1:
The system merges solar thermal collectors with geothermal heat exchangers in a hybrid configuration. Solar collectors precondition thermal energy during daytime hours, reducing the thermal load on geothermal bore fields and allowing for smaller, less expensive drilling while maintaining effective renewable energy utilization through combined operation
3Adaptability or versatility
If multiple thermal storage and exchange regions are integrated with heat pumps, then operational flexibility and thermal efficiency are improved, but source fluid management complexity increases
Solution Approach 1:
A centralized flow manager acts as an intermediary between multiple thermal storage/exchange regions and the heat pump system. This mediator component coordinates source fluid flow paths, selects optimal thermal sources based on environmental conditions, and manages transitions between different operational modes, simplifying the management complexity while maintaining operational flexibility
4Productivity
If dry coolers are used to precondition thermal storage regions, then system efficiency is improved, but initial capital costs increase
Solution Approach 1:
Dry coolers perform preliminary thermal conditioning of storage regions during periods of excess solar energy or favorable environmental conditions. By pre-conditioning the thermal storage media before heat pump operation, the system improves overall efficiency while allowing smaller, less expensive heat pump equipment to be used, offsetting the initial capital cost of the dry coolers
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 system reduces installation costs by up to 60% and enhances operational efficiency by providing additional modes of thermal augmentation, increasing the efficacy of heat pumps and reducing operating costs through flexible and cost-effective management of source fluid flow.
Implementation Method 1
The heat pump utilizes a refrigeration cycle, i.e., the compression and expansion of a refrigerant, to transfer heat to, or from, the space being heated, or cooled
Implementation Method 2
above-ground thermal exchange units such as, but not limited to, dry coolers and solar thermal collectors
Implementation Method 3
dry coolers are implemented to provide source fluid directly to the heat pump, as well as to precondition hot and cold underground thermal storage and exchange regions
Implementation Method 4
underground thermal storage-and-exchange regions
Data Source
AI summary
A simple, cost effective system and method for flexibly managing heat pump source fluid is disclosed. The source fluid flow-manager significantly enhances heat pump efficiency by selectively coupling it to renewable energy resources via geothermal, solar, and ambient air thermal exchanges. The sophisticated interconnection of these thermal exchanges also reduces installation costs. A preferred embodiment of the source fluid flow-manager consists of three T-port valves, two pumps and a plurality of connection points, and operates in at least twelve modes. These modes selectively interconnect source fluid flow between fluid utilizing units, such as heat pumps, and a variety of thermal exchange and/or storage units, such as hot or cold underground thermal storage-and-exchange regions, dry coolers and solar thermal collectors. The valves and pumps are controlled by a programmed controller, guided by input from flow meters and thermometers. Operational modes are matched to thermal need, and to system and environmental status.