Panbu Electric
Panpu EC Permanent Magnet Fan Case Study | Cleanroom Operator | Energy-Saving Variable Speed Retrofit for Cleanroom Fan Systems
HVAC

Panpu EC Permanent Magnet Fan Case | Cleanroom Operator | Energy-Saving Retrofit of Cleanroom Fan Clusters with On-Demand Speed Control

The original AC fan bank in the cleanroom of an electronics manufacturing facility operated at a fixed speed, causing significant energy waste due to damper throttling and generating excessive noise that affected the work environment. The project replaced all AC fans with EC permanent magnet motors and implemented closed-loop demand-based airflow control using pressure sensors, managed centrally by an intelligent linkage system for multiple units. Post-retrofit, the cleanroom's air system now operates on demand, achieving significant improvements in both noise levels and energy consumption, with annual electricity savings exceeding projected targets.

RESULTS

Transformation Results

SAVING RATE

35%Comprehensive Energy Saving Rate

Overall energy consumption reduction after retrofit

ENERGY COMPARE

96
Before renovation
62
Refactored

Annual Energy Consumption Comparison (Unit: 10,000 kWh)

KEY METRICS

Holiday Power Consumption3410,000 kWh
Payback Period12month
Energy savings rate35%

The fan system operates on demand, simultaneously reducing workshop noise and energy consumption.

Data Scope and Validation Source: The above metrics are derived from on-site measurements under identical operating conditions before and after the retrofit (comparing energy meter readings with equipment operation logs). The statistical period covers 30 consecutive days of full operation post-retrofit. Motor energy efficiency ratings follow GB 18613-2020 and IEC 60034-30-1, while product efficiency values are cited from the manufacturer's factory test reports. Actual results may vary based on load rate, annual operating hours, and specific operating conditions.

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TESTIMONIALS

Customer Reviews

After replacing EC fans, airflow in the data center is more uniform, noise levels are significantly lower, and maintenance inspection pressure has decreased. The upgrade was completed without disrupting normal cooling operations.
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Head of Operations, Data Center

Operations Lead

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