Page 11 - THEi Student Applied Research Presentations 2024

ANALYSIS AND IMPROVEMENT OF BUILDING
ENERGY SYSTEM IN MECHANICAL VENTILATION

AND AIR CONDITIONING (MVAC) SYSTEM:

A CASE STUDY IN HONG KONG

ABSTRACT Poster

RESEARCH BACKGROUND
The high population density, muggy environment, and high-rise buildings in Hong
Kong pose challenges to manage energy use and optimize building energy systems,
particularly MVAC systems. Energy analysis is crucial for identifying operational issues,
improving occupant comfort, and optimizing energy use in buildings. WONG TSZ YEUNG

METHODOLOGY

Stage 1 involved gathering data on energy performance, usage, and electricity bills of BEng (Hons) in Building Services
Engineering
different buildings from 2021 and 2022. In Stage 2, the data was analyzed to evaluate
compliance with standards, identify fluctuations in energy consumption, and assess Department of Construction,
chiller plant performance. In the final stage, a comprehensive strategy was developed Environment and Engineering
to improve energy usage efficiency.

FINDINGS OBJECTIVES
The analysis revealed that the Energy Use Intensity (EUI) for 2021 exceeded the
benchmark average for buildings in Hong Kong. The energy usage of the MVAC system An energy analysis of the MVAC
increased during summer and January, indicating issues with the chiller plant of the system in a commercial building was
building. The chiller plant's performance of the building was evaluated using the conducted to evaluate its type and
Coefficient of Performance (COP), but found not meeting the recommended level.
energy usage patterns. The analysis
ABOUT THE INVESTIGATOR gathered information from 2021-2022,
by comparing energy usage to identify
usage trends. Recommendations for
My name is WONG Tsz Yeung and I am an aspiring HVAC engineer with a passion for improving the building's energy usage
fitness, travel, and continuous learning. I have a strong interest in engineering and a efficiency will be made.
specific focus on HVAC systems. I am driven to pursue a successful career in this field.
My enthusiasm for staying physically fit and exploring new places complement my
dedication to expanding my knowledge and skills in the engineering domain.
FYP supervisor: Ir Dr. Penny PAN

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