Thermal convection conversion system

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Solution Overview

Problem

Conventional heating systems in home and commercial structures suffer from significant heat loss through convection, leading to inefficient energy use and unstable air currents due to inconsistent air flow patterns and drafts, which existing methods like fans and ducting systems fail to effectively address.

Innovation Solution

A thermal convection conversion system that recycles heat energy by capturing warmed air at the ceiling and recirculating it through a built-in ceiling plenum using a fan and vent system, forming a convection loop to stabilize air temperatures and reduce drafts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If conventional heating systems warm air in enclosed spaces, then the desired temperature is achieved in the average mean temperature area, but heat energy is lost through convection as warmed air rises to the ceiling and warms building materials

Engineering Contradiction:
Improvedesired temperatureVSAvoidheat energy loss
Core Design Contradiction:
TemperatureVSLoss of energy

Solution Approach 1:

The patent converts the harmful convective heat loss into a beneficial recirculation system. The built-in ceiling plenum captures the warm air that would otherwise be lost, and a fan recirculates it back to the floor level, transforming the waste heat flow into a useful heating mechanism that reduces energy loss.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The patent establishes continuous recirculation of warm air through the plenum system. Instead of allowing heat to be lost in discrete heating cycles, the system maintains continuous movement of warm air from the ceiling back to the floor, ensuring sustained heating action and reducing the need for repeated heating cycles.

Inventive Principle:
Principle #20Continuity of useful action

2Loss of energy

If fans or ducting systems force warm air back to floor level, then heat energy is recirculated, but the warm air quickly returns to the ceiling area and disrupts lower colder air creating unwanted drafts

Engineering Contradiction:
Improveheat energy recirculationVSAvoidair flow stability
Core Design Contradiction:
Loss of energyVSStability of the object's composition

Solution Approach 1:

The patent introduces the built-in ceiling plenum as an intermediary structure. Instead of directly forcing air through ducts that disrupt flow patterns, the plenum serves as a buffer zone that captures warm air and allows controlled recirculation through integrated fan and vent systems, maintaining air flow stability while preventing draft formation.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent merges the plenum with the ceiling structure itself, integrating the heat recirculation function into the existing ceiling framework. This combination allows the system to utilize the ceiling space efficiently while maintaining natural air flow patterns and avoiding the disruption caused by separate ducting systems.

Inventive Principle:
Principle #5Merging (Combining)

3Loss of energy

If heavily insulated ceilings are used to slow energy loss, then heat energy is retained within the enclosed space, but the system does not actively recirculate warm air back to the floor level

Engineering Contradiction:
Improveenergy loss through insulationVSAvoidinsulation system simplicity
Core Design Contradiction:
Loss of energyVSDevice complexity

Solution Approach 1:

The patent makes the ceiling structure multi-functional by integrating the plenum into the ceiling framework. The ceiling serves both its traditional insulation function and the additional function of housing the heat recirculation system, eliminating the need for separate complex insulation and recirculation systems.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent enables the heating system to serve itself by using the existing warm air that rises to the ceiling rather than requiring external heat sources to continuously generate warmth. The recirculation system captures and redistributes this self-generated warm air, creating a self-sustaining thermal environment.

Inventive Principle:
Principle #25Self-service

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 achieves energy conservation by reducing heat loss through convection and stabilizing air temperatures, providing enhanced comfort and energy efficiency by minimizing the need for frequent heating cycles and reducing drafts.

Implementation Method 1

In enclosed structures, most heat loss occurs by convection from the floor up through ceilings and upper wall areas. As air is warmed in an enclosed structure the warmed air rises to the ceiling while colder air settles to the floor.

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 2

a fan and vent system that captures warmed air at the ceiling and forces the warm air back to the floor level

Methodology Applied
Scientific EffectForced Convection: Forced Convection

Implementation Method 3

Energy used to warm air is expended as it warms the building materials at the ceiling and consequently is lost through convection

Methodology Applied
Scientific EffectThermal Conduction: Conduction (thermal)

Data Source

PatentUS12467647B1Thermal convection conversion system
Publication Date: 2025.11.11 FLORENCE THOMAS
  • US12467647B1 patent drawing
  • US12467647B1 patent drawing
  • US12467647B1 patent drawing

AI summary

A thermal convection conversion system is provided. The system includes the installation of one or a plural of induction vents at floor level. Cold air at the floor level is drawn into a vertical stud cavity in a wall framing using an intake fan. The vertical stud cavity serves as a duct to allow the cold air to be drawn upward to a top plate of the wall framing. The top plate is modified with a steel supporting bracket that allows passage for the cold air to access a plurality of plenum spaces created between the ceiling joists and ceiling material, such as drywall or plaster. An exhaust duct is formed in an opposite wall, gathering air from the plenum spaces and exhausting the air through a vent at the floor level.