Airflow-Powered HVAC Damper for Wire-Free Multi-Zone Control
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Solution Overview
Problem
Conventional HVAC zoning systems face challenges in efficiently controlling environmental parameters across multiple zones due to the complexity and cost of wiring and pneumatic systems, as well as the need for centralized thermostat control, which can be cumbersome and expensive to install and maintain.
Innovation Solution
A wireless system that includes a damper with an energy harvesting device and energy storage, a temperature controller, and a control box that adjusts damper positions based on temperature data, allowing for remote control of air flow in HVAC zones without the need for extensive wiring, using energy generated from air flow to power system components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If manual dampers and valves are adjusted to a single position, then installation is simple, but temperature control adaptability deteriorates
Solution Approach 1:
The damper is transformed from a static single-position device to a dynamic multi-position device. The motorized actuator enables the damper to adjust its position dynamically based on temperature feedback from thermostats in different zones, allowing it to respond to changing environmental conditions while maintaining simple installation through wireless operation.
Solution Approach 2:
A feedback control system is implemented where thermostats in each zone monitor temperature and communicate with the central controller. The controller adjusts damper positions based on this feedback, enabling adaptive temperature control across multiple zones without requiring complex manual adjustment procedures.
2Ease of operation
If electric motors or pneumatic components are used to actuate dampers, then ease of operation improves, but device complexity and installation cost worsen
Solution Approach 1:
The patent replaces traditional mechanical actuation systems (electric motors requiring extensive wiring or pneumatic components requiring air lines) with a wireless motorized actuator system. The wireless communication protocol eliminates the need for complex wiring harnesses and pneumatic infrastructure, reducing installation complexity while maintaining ease of operation through remote control capability.
3Measurement precision
If multi-zone control systems with thermostats and sensors in each room are implemented, then temperature control precision improves, but device complexity and installation cost worsen
Solution Approach 1:
The patent implements a wireless sensor network where thermostats and temperature sensors in each zone communicate control signals and temperature data wirelessly to the central controller. This eliminates the need for extensive wiring between multiple zones and the central control system, reducing installation complexity and cost while maintaining precise temperature measurement and control capability in each zone.
4Device complexity
If centralized thermostat control is used, then device complexity is reduced, but ease of operation deteriorates
Solution Approach 1:
The control system is segmented into independent wireless zones, each with its own thermostat that can be operated locally. This allows users to control temperature in specific zones independently without needing to physically travel to a centralized thermostat location, improving convenience while the overall system architecture remains relatively simple through wireless coordination.
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 solution enables efficient, cost-effective, and user-friendly control of environmental parameters in multiple zones, reducing installation costs and improving temperature control by allowing for wireless operation and energy harvesting, thus enhancing comfort and reducing energy consumption.
Implementation Method 1
a damper with an energy harvesting device and energy storage, configured to harvest energy within an HVAC system
Data Source
AI summary
A system and method to control environmental parameters of predefined zones within a structure. An embodiment of the system uses damper assemblies that are entirely wireless as a result of energy capturing devices which convert air flow within the HVAC system ductwork into electrical current and a wireless control module that remove the need for hard-wiring for power or control. Still further, an embodiment of the system uses wireless components to monitor the environmental parameters of a structure's zones, process and communicate necessary zone adjustments, and actuate system components.