Subsoil Airflow and Hydronic Turf Heating
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Solution Overview
Problem
Existing in-ground hydronic systems for turf management are limited in effectively maintaining ideal root zone temperatures due to potential damage from maintenance operations and insufficient depth for efficient heating and cooling, leading to uneven temperature distribution.
Innovation Solution
A turf management system incorporating a subsoil airflow mechanism and in-ground wireless sensors that control fluid circulation and airflow through a network of hydronic tubing, allowing for real-time temperature adjustments and scheduling based on soil profile conditions, ensuring even distribution of heating or cooling effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hydronic tubing is buried deeper to avoid damage from maintenance operations, then reliability is improved, but heating and cooling efficiency deteriorates due to insufficient depth for effective temperature alteration
Solution Approach 1:
The patent combines hydronic tubing with subsoil drainage pipes, merging two separate functions (heating/cooling and drainage) into a single integrated system. This allows the tubing to be positioned within the drainage pipe structure at an optimal depth that provides both protection from surface maintenance operations and effective thermal contact with the root zone soil.
Solution Approach 2:
The hydronic tubing is nested within the subsoil drainage pipe structure, with the tubing positioned inside or alongside the drainage pipes. This nested arrangement protects the tubing from external damage while maintaining close proximity to the root zone for effective heat transfer.
2Temperature
If hydronic tubing is placed closer to the surface for better heating and cooling efficiency, then temperature control improves, but vulnerability to maintenance operation damage increases
Solution Approach 1:
By merging the hydronic tubing with the protected drainage pipe infrastructure, the system achieves both shallow positioning for thermal efficiency and deep positioning for physical protection simultaneously.
Solution Approach 2:
The drainage pipe structure serves as an intermediary that protects the hydronic tubing from surface maintenance operations while still allowing effective thermal interaction with the root zone through the pipe walls and surrounding soil.
3Device complexity
If traditional hydronic systems are used without airflow mechanism, then device complexity is reduced, but temperature distribution uniformity deteriorates
Solution Approach 1:
The patent introduces a pneumatic airflow mechanism that moves air through the soil profile to enhance heat and moisture distribution. This airflow system works in conjunction with the hydronic tubing to achieve more uniform temperature distribution across the root zone.
Solution Approach 2:
The airflow mechanism serves multiple functions: it distributes heat more evenly throughout the soil profile, enhances moisture movement, and works synergistically with the hydronic system to improve overall temperature control efficiency.
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 system effectively maintains ideal root zone temperatures by altering soil profile temperatures up to 120 degrees Fahrenheit, reducing damage from maintenance and ensuring consistent turf health through automated control of airflow and fluid circulation.
Implementation Method 1
The fluid is heated or cooled to a temperature at or near the desired root zone temperature, and is circulated under the grassy area through a network of in-ground flexible tubing
Implementation Method 2
The airflow mechanism may be controlled to direct airflow around and adjacent the hydronic tubing and toward the root zone of overlying soil profile based on the detected temperature of the soil profile, thereby more evenly distributing radiant heating or cooling provided by the hydronic tubing
Implementation Method 3
In some embodiments, in-ground wireless sensors may wirelessly transmit signals indicating soil profile temperatures in real-time
Data Source
AI summary
A turf management system includes a wireless receiver that is configured to receive respective wireless signals comprising sensor data from wireless sensors positioned in a soil profile at respective depths below a green surface. A control circuit is coupled to the wireless receiver and is configured to determine soil profile conditions at the respective depths below the green surface responsive to the sensor data. The control circuit is coupled to a subsoil environmental control mechanism and is configured to automatically control operation of the subsoil environmental control mechanism responsive to the soil profile conditions at the respective depths below the green surface. The subsoil environmental control mechanism may include an airflow mechanism that is configured to alter airflow below the green surface, and/or a hydronic mechanism that is configured to circulate fluid through a hydronic tubing network below the green surface.