Induction displacement unit

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Induction-displacement units struggle to provide effective heating along exterior walls in educational buildings while maintaining displacement ventilation, as the delivered air rises instead of pooling across the floor in heating mode, necessitating separate heating systems that cannot be placed in the same location as the units.

Innovation Solution

An induction displacement unit design featuring an induction plenum communicating with both a heating coil and a cooling coil, where the heating coil is positioned above the cooling coil, allowing for vertical and horizontal air discharge configurations to manage air flow and temperature distribution effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If the induction-displacement unit delivers heated air in heating mode, then the air temperature is raised, but the delivered air rises immediately instead of pooling across the floor, losing displacement ventilation function

Engineering Contradiction:

Improvedelivered air temperatureVSAvoiddisplacement ventilation function

Core Design Contradiction:

TemperatureVSAdaptability or versatility

Solution Approach 1:

The unit is divided into separate heating and cooling sections with independent air discharge paths. The cooling section maintains displacement ventilation by discharging cool air horizontally along the floor, while the heating section separately provides heated air, allowing both functions to operate simultaneously without interference.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different parts of the unit are designed with different discharge characteristics - the cooling section discharges air horizontally near the floor to maintain displacement ventilation, while the heating section discharges air upward to provide heating. This local differentiation allows each section to perform its specific function effectively.

Inventive Principle:

Principle #3Local quality

2Temperature

If a separate heating system is provided in the space, then heating capability is added, but the heating system cannot be placed in the same location as the induction-displacement units along the exterior wall

Engineering Contradiction:

Improvespace heating capabilityVSAvoidsystem configuration

Core Design Contradiction:

TemperatureVSDevice complexity

Solution Approach 1:

The heating system and displacement ventilation unit are merged into a single integrated device. The induction-displacement unit now includes both cooling coils for displacement ventilation and heating coils for heating, allowing both functions to be provided from the same location along the exterior wall without requiring separate systems.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The induction-displacement unit is designed to perform multiple functions - displacement ventilation through the cooling section and heating through the heating section. This multi-functionality eliminates the need for separate heating systems and allows a single unit to provide both cooling and heating capabilities at the exterior wall location.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If the induction-displacement unit is configured with both heating and cooling coils, then simultaneous heating and displacement ventilation is enabled, but the device complexity increases

Engineering Contradiction:

Improveheating and cooling functionalityVSAvoidunit structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The unit is segmented into distinct heating and cooling sections with separate air paths and discharge mechanisms. This segmentation allows independent control and operation of each function while maintaining a relatively simple overall structure that can be manufactured and installed efficiently.

Inventive Principle:

Principle #1Segmentation

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

Enables simultaneous heating of exterior walls and displacement ventilation, maintaining indoor air quality and reducing energy consumption by allowing the unit to function as a displacement terminal unit in both heating and cooling modes without the need for separate heating systems, while meeting noise standards.

Implementation Method 1

Heat generated by the occupants and equipment in the space causes ventilation air to be naturally drawn up by convection

Methodology Applied

Scientific EffectConvection: Convection

Implementation Method 2

Cool, rather than cold supply air is provided directly to occupants through low mounted diffusers. Heat generated by the occupants and equipment in the space causes ventilation air to be naturally drawn up by convection

Methodology Applied

Scientific EffectConvection: Convection

Data Source

PatentUS11668475B2Induction displacement unit

Publication Date: 2023.06.06 TYCO FIRE & SECURITY GMBH

AI summary

An induction displacement unit comprising an induction plenum comprising a plurality of first nozzles communicating with a first discharge plenum and a plurality of second nozzles communicating with a second discharge plenum, a return air plenum, a heating coil disposed between the return air plenum and the first discharge plenum, a cooling coil disposed between the return air plenum and the second discharge plenum, the induction plenum vertically disposed between the heating coil and the cooling coil, the heating coil disposed in an upper portion of the unit, the first discharge plenum disposed to induce a substantially vertical discharge, and the second discharge plenum disposed to induce a substantially horizontal discharge.