Air Handling Unit Integration for HVAC and Fire Suppression
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Solution Overview
Problem
Traditional HVAC systems have separate fire suppression and air conditioning systems, leading to increased complexity and cost in operation and maintenance, as well as limited space for equipment due to redundant systems.
Innovation Solution
An integrated air distribution system that incorporates a fire suppression system within the HVAC system, where a fire suppression agent is delivered through the air handling unit's air flow path, allowing simultaneous conditioning and fire suppression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate fire suppression system and HVAC system are used, then each system can be independently optimized, but the complexity of operation and maintenance increases
Solution Approach 1:
The patent combines the fire suppression system and HVAC system into a single integrated unit. The fire suppression agent delivery mechanism is incorporated within the air handling unit, allowing both systems to share common components such as the air flow path, housing, and control mechanisms. This merging reduces operational and maintenance complexity while maintaining the functional independence of each system through modular design elements.
Solution Approach 2:
The air handling unit is designed to perform multiple functions: it conditions air for HVAC purposes and simultaneously serves as the delivery mechanism for fire suppression agents. The system can operate in different modes (HVAC mode and fire suppression mode) using the same physical infrastructure, thereby reducing the number of separate systems needed while maintaining optimized performance for each function.
2Reliability
If separate fire suppression system and HVAC system are used, then each system has dedicated equipment, but the space required for equipment increases
Solution Approach 1:
The fire suppression system components are nested within the HVAC air handling unit. The nozzle for delivering fire suppression agents is positioned inside the air flow path of the HVAC system, and the housing of the air handling unit serves as the containment structure for both systems. This nesting arrangement eliminates the need for separate dedicated spaces for each system while maintaining the integrity and optimized design of each subsystem.
3Area of stationary object
If integrated air distribution system is used, then the footprint is reduced, but the system complexity increases
Solution Approach 1:
The integrated system is divided into distinct functional modules: the air conditioning module with heat exchanger and fan, the fire suppression module with agent storage and nozzle, and the control module. Each module can be independently designed, installed, and maintained, reducing the overall system integration complexity while achieving a reduced footprint through their combined operation within a single housing.
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 integration reduces the footprint of both systems, eliminates redundant equipment, and simplifies operations by delivering conditioned air and fire suppression agent simultaneously, thereby lowering installation and maintenance costs while optimizing space usage.
Implementation Method 1
a heat exchanger disposed within the air flow path and configured to flow a working fluid to facilitate heat exchange between the working fluid and the air flow
Implementation Method 2
a fan disposed within the housing and configured to drive the air flow through the air flow path
Data Source
AI summary
Embodiments of the present disclosure relate to an air handling unit having a housing that defines an air flow path therethrough, a heat exchanger disposed within the air flow path and configured to flow a working fluid therethrough, and a nozzle configured to deliver a fire suppression agent into the air flow path.