Details

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Automated Duct Leakage Measurement (ADLM) | Smart Compliance by EKG

In the high-stakes regulatory environment of 2026 Kuala Lumpur, Automated Duct Leakage Measurement (ADLM) represents the evolution from manual, "spot-check" testing to continuous, data-driven integrity monitoring. While traditional Duct Air Leakage Testing (DALT) is a snapshot in time, ADLM utilizes the building's own VSD sensors and high-precision airflow stations to calculate leakage in real-time. Under the Energy Efficiency & Conservation Act (EECA), ADLM is the gold standard for proving your building's "Air-Tightness" 365 days a year.

As part of our Duct Leakage Testing category, EKG provides the sensor integration and algorithmic tuning required to turn your "Passive Ducts" into a self-reporting energy asset.

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1. The Physics of "Real-Time Volumetric Balancing"

ADLM operates on the principle of Mass Flow Conservation. The system constantly compares two high-precision data points:

• The Fan Outlet Flow ($Q_{AHU}$): Measured at the discharge of the AHU via the VSD’s torque/frequency data or an Pitot-array station.

• The Terminal Summation ($\sum Q_{VAV}$): The sum of all air delivered through every VAV box or diffuser flow sensor in the building.

• The Leakage Delta ($Q_{Leak}$): Any difference between the air leaving the fan and the air arriving at the rooms is documented as the "Real-Time Leakage Rate."

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2. The EKG "Smart-Duct" Integration Protocol

We treat ADLM as a fusion of aeronautical sensing and BMS digital logic, adhering to MS1525:2024 standards:

• High-Precision Airflow Stations: We install Thermal Dispersion or Pitot-Array sensors at the main headers. Unlike old "Flow Hoods," these sensors provide a continuous $\pm 2\%$ accuracy even in turbulent air.

• BMS/EMS Algorithmic Tuning: We program a "Leakage Dashboard" into your Building Management System. This tracks the leakage curve ($L/s$ per $m^2$) against the current duct static pressure ($Pa$).

• Automated "Leak Alarm" Thresholds: If the leakage rate exceeds your building's Design Leakage Class (A, B, or C), the system sends an automated alert. This allows EKG to find a failing mastic seal or a loose access door before your energy bill spikes.

• VSD Optimization Loop: The ADLM data is fed back to the VSD. If leakage is detected, the system calculates the "Wasted kW" and suggests a setpoint reset to minimize the Cube Law energy penalty.

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3. The Energy & Operational ROI

An ADLM system provides the ultimate documentation for your 2026 EECA and GBI audits:

• Predictive Maintenance: Duct seals (gaskets and mastics) degrade in KL’s 90% humidity. ADLM detects this "Slow Degradation," allowing for scheduled repairs instead of emergency "Hot/Cold" tenant complaints.

• Documented Energy Savings: We provide a monthly "Leakage Loss Report" showing exactly how many Ringgit were saved by maintaining a sealed system.

• The Cube Law Protection: By proving the system is sealed, we justify running the VSD at the lowest possible frequency ($Hz$), capturing the maximum possible energy savings.

The Logic: Because of the Cube Law, an ADLM system that prevents a 10% leakage increase effectively saves you 33% in fan power over the course of a year.

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4. ADLM Performance Matrix

Metric	Standard (2026 KL)	EKG Automated Action
Leakage Ratio	< 5% of Total Flow	Normal Operation (Green)
Volumetric Delta	5% - 1\% Leakage	Alert: Schedule Visual Audit
Critical Failure	> 15% Leakage	Immediate "High-Pressure" Diagnostic
Data Accuracy	pm 3 F.S.	Quarterly Sensor Calibration
Reporting	Monthly Compliance PDF	Automated EECA Submission Prep

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5. Why Trust EKG for ADLM?

• Mechanical Restoration Path: We don't just "read sensors"; we are experts in Mechanical Fan and VAV Overhauls. We ensure your flow dampers and VAV controllers are physically calibrated so the ADLM data is 100% trustworthy.

• VFD-Energy ROI Projection: We use the ADLM data to provide a "Carbon Footprint" report, directly supporting your facility's ESG goals.

• 2026 Technical Standards: All ADLM integrations are verified against ASHRAE 111 and SMACNA testing and balancing guidelines.

• KL/Selangor Expertise: We specialize in retrofitting ADLM sensors into existing commercial towers in KLCC and TRX without requiring a full system shutdown.