4 basic refrigeration systemsfile.upi.edu/.../196108281987031-agus_maulana/ref._system_type.pdftypes...
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Types of Refrigeration Systems
4 Basic Refrigeration Systems
Direct Expansion (DX)
Air-Cooled condenser
Direct Expansion (DX)
Water-Cooled Condenser
Chilled Water System (CW)
Air-Cooled Condenser
Chilled Water System (CW)
Water-Cooled Condenser
Compressor
Outdoor Air
Condenser
Cooling Coil &
Evaporator (DX)
Air
DX Cooling with
Air-Cooled Condensing
Typical Residential System
Condenser
&
Compressor
Evaporator
(Cooling Coil)
Refrigerant
Piping
Filter Expansion
Device
Cooling Coil&
Evaporator (DX)
Pressure Reducing
Device
Compressor
Outside Air
Liquid Line
Hot Gas Discharge
Cooling
Tower
Suction Line
Condenser Pump
Water-Cooled
Condenser
DX Cooling with
Water-Cooled Condensing
Air
Water-Cooled Condenser
Water flows through tubes
Refrigerant vapor fills shell surrounding tubes
Heat transfers from refrigerant to water
Refrigerant condenses
Liquid Refrigerant
Refrigerant Vapor
Cool Water
Warm Water
Self Contained
Macon, GA
DX Cooling with
Water-Cooled Condensers
Cooling Tower
Sprays
Sump
Propeller Fan
Outdoor Air
Fill
From Condenser95°F [35°C]
To Condenser85°F [29°C]
Evaporator
3-Way Valve
Cooling
Coil
Chilled Water Pump
Chilled Water
Return
Chilled Water
Supply
Pressure Reducing
Device
Compressor
Outside Air
Liquid Line
Hot Gas
Discharge Line
Air-Cooled
Condenser
Suction Line
Chilled Water Cooling with
Air-Cooled Condensing
Shell-and-Tube Evaporator
Refrigerant Vapor
Chilled-Water Return
Chilled-Water Supply
Tube Bundle
Baffles
Liquid / Vapor refrigerant
RTAA
Pueblo, CO
Centrifugal Chiller
Charmes, France
Packaged Air-Cooled Chiller
Clarksville,TN
Pueblo, CO
Chilled Water Cooling with
Air-Cooled Condenser
Chilled Water Cooling with
Water-Cooled Condensing
Evaporator
3-Way Valve
Cooling
Coil
Chilled Water Pump
Chilled Water
Return
Chilled Water
Supply
Pressure Reducing
Device
Compressor
Outside Air
Liquid Line
Hot Gas Discharge
Cooling
Tower
Condenser Pump
Suction Line
Water-Cooled
Condenser
Air
Centrifugal Chiller
LaCrosse, WI
Helical-Rotary (Screw) Chiller
Pueblo, CO
Scroll Chiller
Pueblo, CO
Chilled Water Cooling with
Water-Cooled Condenser
Water Cooled Condenser and Cooling
Towers
17
18
15
16
3 6 8 19 13
4
2 21
7
1 5 14
20
9
12
10
11
What Is Refrigeration?
.005
.010
.015
.020
.025
Hu
mid
ity R
ati
o (
Lb
w/lb
a)
30 40 50 60 70 80 90 100 110
Dry Bulb Temperature (°F)
80%60%
40%
20%
40
50
60
70
80
90
30 comfort zone
75
50
%
1
2
3
4
Refrigerant vapor
Tube bundle
BafflesLiquid–vapor refrigerant
Chilled-water return
Summary of Intro to HVAC
From the Trane Library
More on HVAC Fundamentals Air Conditioning Clinics
Psychrometry
Refrigeration Cycle
Refrigeration Components
Engineered System Clinics
Understanding HVAC Systems
Airside Systems
Refrigeration Systems
Trane Systems Manual
Definitions: A-C
Definitions: D-G
Definitions: H-O
Definitions: P-U
Definitions: V-Z