Geothermal Manifold Layout for Balanced Flow Without Reverse Return

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Solution Overview

Problem

Conventional geothermal energy systems face issues with assembly errors leading to leaks, pressure loss, and uneven fluid flow due to the requirement of reverse return piping configurations, which complicates the connection of manifolds and reduces system efficiency.

Innovation Solution

A geothermal energy system with manifolds configured to eliminate the need for reverse return piping, featuring a housing with a single orifice at one end and multiple orifices at the other, where each tube extension is oriented to intersect at the center line of the single orifice, ensuring balanced fluid flow without T-joints and fewer fusion joints, thus simplifying installation and reducing maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If reverse return piping configuration is used to comply with regulations, then flow balance is improved, but device complexity and assembly difficulty increase

Engineering Contradiction:

Improveflow balanceVSAvoidpiping configuration complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

Instead of using reverse return piping where flow goes through multiple manifolds in a complex path, the patent inverts the approach by having flow go directly through each circuit loop once, with manifolds arranged in parallel rather than series, simplifying the piping configuration while maintaining flow balance

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The patent segments the piping system into independent circuit loops, each with its own manifold pair, allowing simpler connection configurations while maintaining overall system balance through modular repetition of the basic loop unit

Inventive Principle:

Principle #1Segmentation

2Reliability

If reverse return piping configuration is used, then flow distribution is improved, but ease of operation and installation deteriorate

Engineering Contradiction:

Improveflow distributionVSAvoidinstallation ease

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent inverts the traditional reverse return approach by using direct return piping where each circuit connects directly between supply and return manifolds, eliminating the need for complex cross-connections and making installation straightforward while preserving flow distribution through proper manifold sizing and orientation

Inventive Principle:

Principle #13The other way round (Inversion)

3Adaptability or versatility

If traditional manifold assembly is used, then system completeness is improved, but reliability deteriorates due to assembly errors and leaks

Engineering Contradiction:

Improvesystem completenessVSAvoidleak resistance

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent merges the manifold assembly into integrated units with pre-configured connections, reducing the number of field assembly steps and potential leak points while maintaining complete circuit coverage through the combined manifold-pipe-loop structure

Inventive Principle:

Principle #5Merging (Combining)

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 solution provides a durable, low-maintenance, and cost-effective geothermal energy system with balanced fluid flow, eliminating the need for reverse return schemes and reducing the risk of leaks, thereby enhancing system efficiency and market appeal.

Implementation Method 1

Each tube extension is orientated such that the longitudinal center line of each tube extension intersects at a point on the longitudinal center line of the single orifice defined in the first end of the housing

Methodology Applied

Scientific EffectFluid flow balancing through geometric orientation: Geometry

Data Source

PatentUS9127858B2Multi-circuit manifold and method for a geothermal energy system

Publication Date: 2015.09.08 MCKEOWN DAVID WAYNE

AI summary

A geothermal energy system including a heat pump. The system includes a first manifold and a second manifold and a plurality of pipes. Each manifold includes a housing having a first end and a second end. A single orifice is defined in the first end and a plurality of orifices are defined in the second end. Each of the orifices in the second end define a terminus of a tube extension. Each tube extension is configured an angular distance from an adjacent tube extension. Each tube extension is orientated such that the longitudinal center line of each tube extension intersects at a point on the longitudinal center line of the single orifice defined in the first end of the housing. The first and second manifolds and the plurality of pipes are in fluid communication with the heat pump and configured to transfer thermal energy with a geothermal energy source.