Passive Chimney Cooling System with Vane-Based Contaminant Redirection
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Solution Overview
Problem
Existing waste heat removal systems in data centers rely on mechanical systems with moving parts, which consume electricity, generate additional heat, and require maintenance, and are challenged by non-uniform environmental conditions, leading to inefficiencies and potential damage from external contaminants.
Innovation Solution
A passive cooling system utilizing a chimney effect to route exhaust air from data centers to an ambient environment through an indirect pathway, featuring vanes and panel gutters that collect and redirect liquids and precipitation, minimizing the entry of environmental contaminants and eliminating the need for active air-moving devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If mechanical systems with moving parts (blowers, fans) are used to remove waste heat, then waste heat removal capability is improved, but energy consumption increases and additional waste heat is generated
Solution Approach 1:
The patent replaces mechanical air-moving devices (blowers, fans) with a passive chimney effect system. The chimney structure creates natural convection currents that draw exhaust air and waste heat out of the data center without requiring external mechanical power, thereby eliminating electricity consumption and additional waste heat generation from mechanical components
Solution Approach 2:
The cooling system utilizes the waste heat itself to drive the removal process. The heated air rises naturally through the chimney, creating a self-sustaining convection current that continuously extracts waste heat without external energy input, making the system self-service rather than requiring external power
2Productivity
If mechanical systems with moving parts are used, then waste heat removal is achieved, but maintenance requirements increase due to wear
Solution Approach 1:
The patent eliminates mechanical moving parts by using a passive chimney structure that relies on natural convection. Without motors, bearings, or rotating components, there is no wear to cause failures, dramatically improving reliability and eliminating maintenance requirements while maintaining effective waste heat removal
3Productivity
If direct pathways are used for exhaust air routing, then heat removal efficiency is improved, but contamination from environmental elements increases
Solution Approach 1:
The patent divides the exhaust air pathway into multiple segmented sections within the chimney structure. These segmented pathways include screens, filters, and directional vanes that break up direct exposure to environmental contaminants while maintaining efficient heat removal through controlled air flow channels
4Productivity
If ambient environment is used as heat sink, then cooling capability is improved, but vulnerability to environmental conditions increases
Solution Approach 1:
The chimney structure serves as an intermediary between the data center interior and the ambient environment. It provides a controlled interface that allows heat transfer to ambient air while protecting internal components from direct exposure to environmental contaminants, precipitation, and extreme weather conditions through its enclosed design with protective screens and filters
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 passive cooling system effectively removes waste heat without electricity consumption, reduces maintenance needs, and protects data center components from environmental contaminants, enhancing operational efficiency and reliability.
Implementation Method 1
route the exhaust air, via a chimney effect, from the computer room to an ambient environment
Data Source
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AI summary
A passive cooling system routes air from an enclosure to an ambient environment, via a chimney effect, through one or more indirect pathways and re-directs environmental elements received from the ambient environment. One or more vanes are arranged within an interior space, such that the vanes collectively form one or more indirect pathways to the ambient environment. The vanes preclude environmental elements, including precipitation and particulate matter, from passing through the interior space and into the enclosure. Environmental elements are re-directed by one or more of the vanes, at least in part, to an exterior of the passive exhaust system. Dampers may be adjusted to control airflow through the passive cooling system and restrict environmental elements from entering the passive cooling system. Liquids received from the ambient environment may be re-directed into a reclamation system for use in a cooling system.