2D Fan Array Ventilation for Large Industrial Bay Openings
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Solution Overview
Problem
Current ventilation systems, such as Whole House Fan systems, face limitations in efficiency and application, particularly in large industrial spaces, where they struggle to maintain optimal temperature control and energy savings while ensuring security and operational efficiency.
Innovation Solution
A ventilation system comprising a 2D array of large fans supported by a rigid frame, with a seal assembly for fluid-tight sealing and a locking mechanism for security, capable of directing cooled air out of the structure overnight, and featuring a soft-start motor initialization to manage power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single large fan is used for ventilation, then the device complexity is reduced, but the airflow distribution and ventilation efficiency deteriorate
Solution Approach 1:
The ventilation system divides a single large fan into multiple smaller fans arranged in an array. This segmentation allows the system to achieve better airflow distribution and ventilation efficiency across large industrial spaces while maintaining manageable device complexity through modular configuration.
2Reliability
If the bay door is fully closed for security, then security is improved, but airflow restriction and ventilation efficiency deteriorate
Solution Approach 1:
The system uses a flexible bay door with integrated transparent panels that can be partially opened or configured to allow airflow. This flexible design maintains security through controlled access while enabling sufficient airflow for effective ventilation when the fan array is operational.
3Reliability
If traditional HVAC equipment is used for cooling, then temperature control reliability is improved, but energy consumption increases
Solution Approach 1:
The ventilation system utilizes natural convection and the stack effect to drive airflow through the structure. By positioning the fan array to exploit these natural forces, the system achieves effective cooling with minimal energy input, significantly reducing reliance on energy-intensive traditional HVAC equipment.
4Productivity
If multiple fans are used to improve airflow, then ventilation efficiency is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The fan array uses standardized, identical fan units that can be replicated and configured in different arrangements to suit various ventilation needs. This universal approach allows multiple fans to work together for increased airflow while keeping device complexity manageable through modular, interchangeable components.
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 effectively reduces internal temperatures in large industrial spaces by moving large volumes of air, enhancing energy efficiency, and ensuring secure operation by minimizing power draw during startup and providing secure locking mechanisms.
Implementation Method 1
Large volumes of air are moved with sufficient dwell time to draw and transfer heat from the interior space to the surrounding environment
Implementation Method 2
A seal assembly provides a nominally fluid-tight seal between an outer perimeter of the array and the bay opening
Implementation Method 3
Large volumes of air are moved with sufficient dwell time to draw and transfer heat from the interior space to the surrounding environment
Data Source
AI summary
Method and apparatus for ventilating an interior space, such as a large industrial structure with at least one bay opening. A ventilation system includes an array of M by N fans stacked into a two dimensional (2D) array. A rigid frame supports the array. A seal assembly provides a nominally fluid-tight seal between an outer perimeter of the array and the bay opening. A locking assembly mechanically couples the frame to the bay opening. In some cases, a bay door can be partially retracted and attached to a top of the frame. In other cases, the bay door may be fluidically permeable (e.g., a chain, a screen, etc.) and the array is secured behind a fully closed door. Cooling air is directed out the bay opening at a suitable time, such as overnight. A soft-start motor capability can be used to initiate operation of the array.