station system- Typical variants for design
Capacity
>25 cool ton;>10000cfm; >40000cfm or>100coll ton
Filter &mix box
Mixing plenums/filter Vertical installation
Topic one: Classification of air conditioning systems
Configulation
Central-station Unitary systems
A central-station system is one in which the components of the system are all grouped together in one central mechanical room and the conditioned air is sent from there to the spaces to be conditioned through extensive ductwork.
Lesson Four
Air Conditioning Systems and development trend
Topics
1
What is air conditioning systems? And its classification
2
New technologies for further systems
混合箱
direct expansion(DX) 直接膨胀
acoustic lining
隔音层
grilles
格栅
the fan-coil unit system
high-velocity conduit unit system
空气调节系统
dehumidify
除湿
central-station system 集中式系统
Functional
Cool supply Heat supply
These are usually installed in or immediately adjacent to a zone or space to be conditioned.
Topic Three: Configuration and typical variants of Central-
Frequently used words and phrases
air conditioning system
humidify
加湿
filter
过滤 过滤器
unitary system
单元式系统
radiant-heat systems 辐射采暖系统
face velocity
迎面风速
mixing plenum
An air conditioning system is an assembly of various components which operate in a controlled manner to produce a specified condition of the air within a space or building. To provide complete air conditioning a system must accomplish all the following: heat, humidify, cool, dehumidify, ventilate, filter, and circulate.
Air conditioning units close to cooling and heating equipment, better to use direct expansion refrigerant coil and hot-water coils
Or else, the chiller water or hot water will be the medium and pumped to the air conditioning coils
Noise and vibration
Extreme importance, if located on upper floors, must make sure the stress design is satisfied ,every part should be designed quiet, such as fan motors, ducts and duct turns, and so on
3 Configuration and discussion of Central-station system
4
Configuration and discussion of unitary air conditioning systems
35 Text and key words learning
mechanical room
机房
blower
送风机
face area
迎风面积
damper
闸板
vibration damper
减震器
acoustic board
隔音板
register
送风口
风机盘管系统
高速送风系统
Topic one: What is air conditioning systems
The Air-Conditioning and Refrigeration Institute (ARI) defines a unitary air conditioner as one or more factory-made assemblies that normally include an evaporator or cooling coil and a compressor and condenser combination. It may include a heating function as well. A unitary air conditioner having more than one factory-made assembly (e.g., indoor and outdoor units) is commonly called a split system.
Plant 80000?
Reuse
Topic Three: Configuration and typical variants of Central-
station system- Typical variants to discuss
Refrigeration heating equipment