On-line Smart Air-Balancing System for Net Zero Energy Buildings

Abstract/Technology Overview

The mechanical ventilation system is one of the most energy-demanding systems in the buildings, which operates on a 12-months basis. Air balancing is a promising technique to ensure airflow is evenly distributed to each zone according to its requirements effectively and efficiently. Conventional air balancing method is essentially an offline trial-and-error procedure to balance all terminal air-flow to pre-estimated values and may cause unnecessary energy consumption when the real air demand is not equal to its pre-set value. In order to solve this problem, a very accurate on-line smart air balancing system (OSABS) is proposed to minimize the energy consumption in the air ventilation system. The objective is to realize the balance among the zones in the ventilation system, while at the same time minimizing energy usage. The technology provider is seeking for industry partnership for commercialisation of this technology. 

Technology Features, Specifications and Advantages

1. Artificial intelligence (AI) based hybrid physical/data-driven ventilation model to accurately calculate the minimal required air-flow/energy according to comfort level or CO2 index

2. A three-level hierarchical control platform to realize air-balancing with minimal energy loss and best control performance

3. Reliable & accurate fault detection and diagnosis (FDD) strategy with proposed joint distribution adaption for a deep learning model

Potential Applications

The developed on-line smart air balancing system can be applied iin both variable air volume (VAV) and dedicated outdoor air (DOA) systems, and existing air-balancing systems can be upgraded to the proposed air balancing system to realize timely air-balancing of the building with minimal energy consumption. Since the developed on-line smart air balancing system is a generic system, it can be applied for buildings all around the world. Therefore, the potential for applications will be tremendous.

Customer Benefit

The proposed solution addresses current challenges in VAV systems and offers energy-saving for both existing and new buildings. Potential benefits may include the energy-saving, reduction in the amount of pollution created on-site or at the electricity generating plant, and the reduction of the noise of the mechanical ventilation system.

Technology Owner

Yuqi Wang



Technology Category
  • Power Conversion & Condition System
  • Green Building
  • HVAC - Air Distribution
  • HVAC - Cooling System
Technology Status
  • Available for Licensing
Technology Readiness Level
  • TRL 5