Rotating speed determination method and apparatus, and computer readable storage medium
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Solution Overview
Problem
The liquid cooling units in energy storage systems generate excessive noise (70-95 dB) during operation, which fails to meet noise requirements in residential and wildlife protection areas, despite satisfying refrigeration capacity demands.
Innovation Solution
A method to determine the operation rotating speed of fans in liquid cooling units based on ambient temperature and high pressure at the outlet of a compression apparatus, setting a maximum rotating speed limit to maintain low noise while ensuring refrigeration capacity, using temperature and pressure sensors for precise control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the fan operates at high rotating speed to satisfy refrigeration capacity demand, then the refrigeration performance is improved, but the operational noise increases to unacceptable levels
Solution Approach 1:
The patent applies dynamic speed adjustment by determining the fan's operating speed based on ambient temperature and high pressure conditions. The control unit dynamically adjusts the fan speed to match actual refrigeration needs, avoiding constant high-speed operation that generates excessive noise while ensuring sufficient refrigeration capacity when required.
Solution Approach 2:
The patent changes the operating parameters (speed) of the fan based on measured ambient temperature and high pressure values. By adjusting the fan speed parameter according to environmental conditions and system state, the patent achieves optimal balance between refrigeration performance and noise reduction.
2Object-generated harmful factors
If the fan operates at low rotating speed to reduce noise, then the operational noise is reduced, but the refrigeration capacity may be insufficient
Solution Approach 1:
The patent implements a feedback control mechanism where the control unit continuously monitors ambient temperature and high pressure conditions, then adjusts the fan speed accordingly. This closed-loop feedback ensures the fan operates at the minimum necessary speed to maintain refrigeration capacity while minimizing noise, rather than running at fixed high speed.
Solution Approach 2:
The system dynamically adjusts fan speed based on real-time environmental conditions and system state, allowing the fan to operate at low speed when conditions permit (reducing noise) while automatically increasing speed when refrigeration demand increases, thus maintaining reliability across varying operating conditions.
Data Source
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AI summary
Embodiments of the present application provide a rotating speed determination method and apparatus, and a computer-readable storage medium, which can effectively reduce the impact of noise during operation of a fan without affecting a refrigeration capacity. The method includes: obtaining an ambient temperature and a high pressure at an outlet of a compression apparatus in a target device; and determining an operation rotating speed of a fan in the target device based on the ambient temperature and the high pressure, where the operation rotating speed satisfies a refrigeration requirement of the target device.