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Mvac

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Mvac
BRE 349 Building Service 1
Practices

of

Sustainable

Centralized

Air-Conditioning System in Hong Kong

Bachelor of Science (Hons) in
Building Engineering and Management
Group Members:
Man Kai Chun, Simon

11915174t

Lam Ting Yung, Vincent

11904590t

Lam Wing Kit, Ricky

11923727t

Content pages
1.

Introduction to MVAC System
I. All air system
i.
Single Zone System ii. The reheat system iii. Variable Air Volume System iv. Dual Duct System
v.
Multi Zone System
II. All water system
i.
The Fan Coil Unit ii. Water cooling tower
III. Air and water system
i.
Induction System

2.

ii.
Fan-Coil System iii. Radiant Panels System iv. Two Pipe System
v.
Three Pipe System vi. Four pipe Systems
Other Concepts in MVAC system
Air Side Equipments
I.
II.

Displacement ventilation
Heat recovery equipment for air-side equipment
i.
Thermal wheel and Desiccant total energy heat recovery wheel ii. Heat Pipes iii. Run-around coils
III. Liquid desiccant air conditioners
IV. Microchannel heat exchanger
V. Radiant ceiling cooling
Water Side Equipments
VI. Scale control technologies in water-side system
i.
Automatic tube cleaning system ii. Dynamic-type pulsed-power devices (PPD) iii. Static-type magneto-hydrodynamic devices (MHD)
VII. Heat recovery equipment for water-side equipment
i.
Plate Heat Exchangers ii. Heat recovery chiller
VIII. Thermal energy storage

IX. Water-cooled air conditioning system

3.

i.
Cooling Tower Scheme ii. Central Sea Water Scheme iii. District Cooling Scheme
Case Study
I.

A&A Works for New Advanced Ophthalmology Training and Education
Centre on Roof

4.

Conclusion

5.

References

1. Introduction to MVAC System
MVAC.(Mechanical Ventilation and Air-Conditioning)system is designed to change the air temperature and humidity within an area, such as remove the heat from indoor air for thermal comfort,and typically using a refrigeration

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