HVAC scrubber unit mechanical improvement systems and methods
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Solution Overview
Problem
HVAC systems face inefficiencies in temperature adjustment when return air contains higher contaminant levels, such as carbon dioxide and volatile organic compounds, as they require more outside air to meet temperature setpoints, reducing operational efficiency.
Innovation Solution
A scrubber unit with a contaminant filter using chemical compounds that sorb and release contaminants, integrated with a HVAC system to reduce contaminant levels in return air, allowing for more efficient use of outside air and improving temperature adjustment efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If return air is used for temperature adjustment, then energy efficiency is improved, but contaminant levels in supply air increase
Solution Approach 1:
The patent extracts and removes contaminants from return air using chemical scrubbers and filtration systems before the air is reused for temperature adjustment. This allows the system to maintain high energy efficiency by recycling return air while eliminating the harmful contaminant buildup that would otherwise occur.
Solution Approach 2:
The patent introduces chemical scrubbers and filters as intermediary components between the return air and supply air paths. These intermediaries chemically neutralize or physically trap contaminants, enabling the system to safely reuse return air for cooling/heating without transferring contaminants to the supply air.
2Object-affected harmful factors
If outside air is increased to reduce contaminants, then air quality is improved, but temperature adjustment efficiency decreases
Solution Approach 1:
Instead of diluting return air with additional outside air, the patent extracts contaminants directly from the return air stream using chemical scrubbers. This maintains the energy efficiency benefits of return air reuse while achieving the required air quality standards.
Solution Approach 2:
The patent changes the chemical composition parameters of return air by introducing chemical reactions in scrubbers that neutralize contaminants. This transforms the air quality parameters without requiring changes in air volume or temperature, preserving energy efficiency.
3Object-affected harmful factors
If chemical scrubbers are added to remove contaminants, then contaminant removal is improved, but device complexity increases
Solution Approach 1:
The patent designs chemical scrubber systems that can handle multiple types of contaminants (CO2, VOCs, odors) using a single integrated unit. This multi-functionality reduces overall device complexity compared to installing separate systems for each contaminant type.
Solution Approach 2:
The chemical scrubbers are designed with automatic regeneration capabilities and self-monitoring systems that track chemical consumption and performance. This self-service functionality reduces operational complexity and maintenance requirements despite the added contaminant removal capability.
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 scrubber unit enhances operational efficiency by reducing the amount of outside air needed, improving filtering efficiency over time, and minimizing the use of additional sensors, thus lowering implementation costs and energy consumption.
Implementation Method 1
a contaminant filter that includes a plurality of filter cartridges, which each includes a chemical compound that facilitates sorbing air contaminants
Data Source
AI summary
System and methods for improving implementation of a scrubber unit in a heating, ventilation, and air conditioning system. The scrubber unit includes a housing that house a plurality of filter cartridges, which each includes a chemical compound that facilitates sorbing air contaminants. The housing includes a first sidewall and a second sidewall. The scrubber unit includes an internal wall enclosed within the housing, a cross-member coupled between the first sidewall and the second sidewall perpendicular to the internal wall, and a contaminant filter that includes the plurality of filter cartridges coupled between a top cartridge deck and a bottom cartridge deck, in which the bottom cartridge deck is coupled to the cross-member when the contaminant filter is completely enclosed within the housing to facilitate reducing likelihood of the bottom cartridge deck deforming under weight of the plurality of filter cartridges.