Datacenter CRAHUs Variable Time Delay Cooling
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Solution Overview
Problem
Datacenter cooling systems face challenges in maintaining temperature control during transitions between cooling modes, leading to inefficiencies and increased costs due to loss of discharge temperature control during mode changes.
Innovation Solution
Implementing a sequence of intervals for transitioning multiple air handling units based on ambient temperature changes, allowing the cooling system to self-tune and adjust transition times to maintain optimal discharge temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If multiple air handling units transition between cooling modes simultaneously, then the system responds quickly to temperature changes, but discharge temperature control is lost during transition
Solution Approach 1:
The patent segments the transition process by introducing intervals between when different air handling units switch between cooling modes. Instead of all units transitioning simultaneously, they transition at different times separated by predetermined intervals, which prevents loss of discharge temperature control while still maintaining responsive cooling
Solution Approach 2:
The patent makes the transition intervals dynamic by adjusting them based on ambient temperature conditions. When ambient temperature changes, the intervals between transitions are modified accordingly, allowing the system to adapt its response speed while maintaining temperature control throughout the transition process
2Ease of operation
If air handling units transition with fixed intervals, then the system is simple to operate, but it cannot adapt to changing ambient temperature conditions
Solution Approach 1:
The patent implements dynamic intervals that automatically adjust based on ambient temperature measurements. The system monitors ambient temperature and modifies the transition intervals accordingly, providing adaptability to changing conditions while maintaining automated operation that remains simple to manage
Solution Approach 2:
The system incorporates feedback by continuously monitoring ambient temperature and using this information to adjust transition intervals. This closed-loop approach allows the system to adapt to environmental changes automatically while keeping the operational interface simple
3Device complexity
If all air handling units transition at the same time, then the system structure is simple, but cooling efficiency decreases due to temperature control loss
Solution Approach 1:
The patent segments the transition timing of air handling units by introducing intervals between their mode changes. This temporal segmentation maintains relatively simple system structure while preventing the simultaneous transition that causes temperature control loss and reduces cooling efficiency
Solution Approach 2:
The patent implements periodic transition intervals between air handling units, where each unit transitions at regular intervals after the previous one. This periodic approach maintains structural simplicity while ensuring continuous temperature control and preserving cooling efficiency
Data Source
AI summary
A datacenter room can be associated with multiple computer room air handling units (CRAHUS) capable of transitioning between cooling modes. A management component of the datacenter can separate transitions of different CRAHUS by time intervals. Durations of the time intervals may be determined based on ambient air temperature.