Presented by: Bruce Hilsabeck Application Engineer ... · Bruce Hilsabeck Application Engineer –...
Transcript of Presented by: Bruce Hilsabeck Application Engineer ... · Bruce Hilsabeck Application Engineer –...
1
Copeland Digital ScrollTechnology & AdvantagesCopeland Digital ScrollTechnology & AdvantagesTechnology & AdvantagesTechnology & AdvantagesPresented by:
Bruce Hilsabeck
Application Engineer – CopelandAustralia / New Zealand
IntroductionIntroduction1. Scroll Compressor Basics
2. Digital Compressor Technology
3. Design Features
4. Operating Envelope
5. Energy Efficiency
6. Precise Load Matching
7. Simplicity
8. Reliability
9. Electromagnetic Interference
10. Online Support
2
11 Scroll Compressor BasicsScroll Compressor Basics11. Scroll Compressor Basics. Scroll Compressor Basics
Compression Area
Scroll Scroll CompressorCompressor
Compression Area
Motor
Crankshaft
3
Scroll SetScroll Set Profile Profile Scroll SetScroll Set Profile Profile
Fixed Scroll
Comprises Two Scroll Parts
Orbiting ScrollFigure 1 Figure 2
How The Scroll Compressor WorksHow The Scroll Compressor WorksHow The Scroll Compressor WorksHow The Scroll Compressor Works
4
22 Digital Compressor TechnologyDigital Compressor Technology22. Digital Compressor Technology . Digital Compressor Technology
5
Digital Scroll TechnologyDigital Scroll TechnologyVariable Capacity OutputVariable Capacity Output
• VRF systems• Chiller / HPs• Process Chillers• Dedicated HPs• Rooftops• Air-Driers• Refrigeration Cond Units
Digital Scroll Compressor
www.digitalscroll.com
• Variable Capacity Output• 10 – 100% Seamless Capacity
How the Digital Scroll ModulatesHow the Digital Scroll ModulatesHow the Digital Scroll ModulatesHow the Digital Scroll Modulates
The Digital Scroll uses binary modulation. It’s either ON (1) or it’s OFF (0).
1 – Coil is de-energized and the scroll plates close.
0 – Coil is energized and the scroll plates open.
The switching frequency (or cycle time) of the pulse is between 10 and 20 seconds.
Capacity modulation is a product of time/state or PWM.
The capacity of the Digital Scroll is 10% to 100% with infinite steps.
6
Copeland Scroll Digital™Copeland Scroll Digital™How It Works How It Works -- AnimationAnimation
Modulation Mechanism (PWM Control) Modulation Mechanism (PWM Control) Modulation Mechanism (PWM Control) Modulation Mechanism (PWM Control)
Loaded (1)
Full Capacity
Scroll Separation1.0 mm
Unloaded (0)
Zero Capacity
7
Seamless Capacity DeliverySeamless Capacity DeliverySeamless Capacity DeliverySeamless Capacity Delivery
Capacity % = (100 / Cycle Frequency)(Duty Time)
Example: Cycle Time = 10 Seconds
Capacity Loaded Time
10% 1.0 Second11% 1.1 Second12% 1.2 Second……25% 2.5 Second…50% 5.0 Seconds…90% 9.0 Seconds
33 Design FeaturesDesign Features33. Design Features. Design Features
8
Copeland Scroll FeaturesCopeland Scroll Features
1. Low Side Design Vs. High Side Designg g g
2. Full Compliance (Axial And Radial)
3. Static Seals Vs. Dynamic Seals
4. Built-In Protective Devices
The LowThe Low--Side Design AdvantageSide Design AdvantageLower Internal Pressures & Lower Internal TemperaturesLower Internal Pressures & Lower Internal Temperatures
DischargeSuctionLow Pressure
High Pressure
Suction Discharge
Low Side High Side
9
LowLow--Side Vs High Side DifferencesSide Vs High Side Differences
Conditions CopelandLow Side
D BrandHigh Side
Impact
Hot Surface Top Cap Entire Shell Safety, Wiring
Internal Pressure Low High Reliability
Internal Temperature Low High Reliability
Start Quick Cooling Slow Cooling Temperature Protection
Oil Pump Out Rate Low High Oil Level Protection
Liquid/Debris Handling Excellent Average Long-term Reliability
Radial ComplianceRadial Compliance
Debris
• Ensures Scroll Contact
ScrollScrollScroll
Radial Compliance
666
• But, Allows Scrolls To Separate Sideways
• So Debris And Liquid Can Pass Without Damage
10
Axial ComplianceAxial Compliance
Maintains Constant, Even Pressure On
Floating Seal
Upper Scroll Even Pressure On
Scroll Tips
Floating Seal Is Key
• Optimizes Tip Loading
Scroll (Fixed)
• Pressure Balanced
• Eliminates Leakage
• Patented Design
Lower Scroll (Orbiting)
Advantages Of Full ComplianceAdvantages Of Full Compliance1. High Efficiency
1. Scrolls Wear In Rather Than Wear Out
2. Less Performance Variability
2. Durability/Reliability Enhancement
1. Better Liquid Handling
2. Better Debris Handling
3 No Wear Out Unlike Tip Seal Design3. No Wear Out Unlike Tip Seal Design
3. Low Sound Level
1. Smooth Spectrum And Good Sound Quality
4. Unloaded Start
11
Static Seals Vs. Dynamic SealsStatic Seals Vs. Dynamic Seals
Dynamic Seal Static Seal
Static Seals Vs. Dynamic SealsStatic Seals Vs. Dynamic Seals
Dynamic Seals
– Wear
– Are Sensitive to Liquid and Debris
– Are More Quickly Damaged By Excess Heat
Static SealsStatic Seals
– Do Not Wear
– Are More Robust
12
4 Operating Envelope4. Operating Envelope
Digital Scroll Operating EnvelopeDigital Scroll Operating EnvelopeDigital Scroll Operating EnvelopeDigital Scroll Operating Envelope
-40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20
R-410A Digital Prototype Envelope
Evaporating Temperature (°C)
100
110
120
130
140
150
160
170
180
36414651566166717681
0 35 30 5 0 5 0 5 0 5 0 5 0
nsin
g Te
mpe
ratu
re (°
F)
Condensing Tem
perature
70
80
90
-40 -30 -20 -10 0 10 20 30 40 50 60 70212631
Standard Operating Envelope
Con
den e (°C
)
Evaporating Temperature (°F)
13
5 Energy Efficiency5. Energy Efficiency
Copeland Digital Copeland Digital Scroll Scroll Power SavingsPower Savings
14
Partial Load Performance Partial Load Performance –– Digital ScrollDigital ScrollSnap Shot of Actual Calorimeter TestSnap Shot of Actual Calorimeter Test
Partial Load Performance Partial Load Performance –– Digital ScrollDigital ScrollSnap Shot of Actual Calorimeter TestSnap Shot of Actual Calorimeter Test
15
Digital Scroll Data: Tested & PublishedDigital Scroll Data: Tested & PublishedIPLV Of IPLV Of 44..55 55 (Highest In Industry) (Highest In Industry)
HEFEI Inspection
Report
VRF AC (heat pump) unit
Released time:
Type:Record Number:
Released time:
Product Categories:
Energy Efficiency Grade:
Record details:
Manufacturer:
IPLV(C)
Normal Cooling Capacity:Cooling Power Consumption
Samsung Electronics
100%
75%
50%
25%
Part Load Testing
ConditionsScreenshot –China Energy Labeling Websitehttp://test.energylabel.govcn/
6 Precise Load Matching6. Precise Load Matching
16
Full Modulation (10~100%)– Immediate Load Adjustment– Step Less Modulation– Close Temperature Control (+/- 1 K)
Direct Expansion System &Direct Expansion System &Copeland Scroll Digital ™Copeland Scroll Digital ™
Digital Modulating
% Load and Temperature Swing With Fixe Capacity Compressors
Load
90100110
100%
Digital Scroll : Capacity Output RangeDigital Scroll : Capacity Output Range
1020304050607080
% C
apac
ity
10%
I nver t er Syst em
Digital Scroll System
010
0 10 20 30 40 50 60 70 80 90 100 110
% Modulation
17
7 Simplicity7. Simplicity
Inverter System ArchitectureInverter System ArchitectureInverter System ArchitectureInverter System Architecture
Electronic & Mechanical Architecture Complexity
18
Drivers sideDrivers side--byby--sidesideDrivers sideDrivers side--byby--sideside
Simple Vs. Complex Electronic Architecture
Digital Scroll System ArchitectureDigital Scroll System ArchitectureDigital Scroll System ArchitectureDigital Scroll System Architecture
Simplified Electronic & Mechanical Architecture
19
8 Reliability8. Reliability
Reliability Reliability -- Easy Oil ReturnEasy Oil ReturnReliability Reliability -- Easy Oil ReturnEasy Oil Return• Easy Oil Return During Low Loads
• No Oil “Pump Out” During Unloading
L d d C l G V l it S ffi i t T• Loaded Cycle Gas Velocity Sufficient To
Return Oil
• Don’t Need Oil Separator Or Oil Return Cycle
• Less than 1% oil pumped out to field
20
Reliability PerformanceReliability PerformanceReliability PerformanceReliability Performance
Total Digital Compressor In Field 500,000+
Reliability 99.996%
9 Electromagnetic Interference9. Electromagnetic Interference
21
Electromagnetic InterferenceElectromagnetic InterferenceElectromagnetic InterferenceElectromagnetic Interference
InverterEMC RegulationDigital Scroll System
1 3 th
1 1 th
7 th
5 th
1 3
1 1
7
5
EMW
1 9 th
1 7 th
Ratio 1 9
1 7
10 Online Support10. Online Support
22
www.digitalscroll.comwww.digitalscroll.comwww.digitalscroll.comwww.digitalscroll.com