Transcript EUW-MZY - Аирконд

EWTP110-540MBY
Air conditioning – Refreshes your life
EWTP-MBYNN
Air-cooled
Heat Recovery
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EWTP110-540MBY
Air conditioning – Refreshes your life
EWTP-MBYNN
Air-cooled
Heat Recovery
Contents
A. Concept
B. Equipment Overview
C. Capacity Range
D. Operation Range
E. Specifications
F. Practical Examples & Reference
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EWTP110-540MBY
Air conditioning – Refreshes your life
A.
Heat Recovery Concept
Return
Return
400C
120C
Heating
Load
Cooling
Load
450C
70C
Supply
Supply
Criteria
• Hot water demand must be great enough to justify cost
• High enough useful waste heat temperature
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EWTP110-540MBY
Air conditioning – Refreshes your life
Heat Recovery Chillers:
B.
EWTP110-160MBYNN
Equipment Overview
EWTP200-340MBYNN
Single Circuit (1 Compressor)
EWTP400-540MBYNN
Double Circuit (2 Compressors)
• Daikin stepless single screw compressor
• All components optimized for use with R-407C
• Air heat exchanger: Cross fin coils / Hi-X tubes and PE waffle louvre fins
• Water heat exchanger: Brazed plate evaporator & heat recovery exchanger
• Double refrigeration circuit (from 400kW)
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EWTP110-540MBY
Air conditioning – Refreshes your life
C.
Capacity Range
EWTP-MBYNN
Model
110
140
160
200
280
340
400
460
540
CC kW
CCHR kW
HCHR kW
HP
107
138
158
191
274
335
379
449
520
98
126
144
171
251
311
337
401
465
116
148
176
208
301
377
407
434
441
40
50
60
80
100
120
140
160
200
Single circuit
Double circuit
(1 compressor)
(2 compressors)
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EWTP110-540MBY
Air conditioning – Refreshes your life
D.
50
Operation Range - Cooling
Ambient (°C )
LWE to
-10°C
On special request
43
40
39
36
30
20
10
0
-10
-15
-20
Continuous
Operation Area
Pull-Down
Area
Protect against freezing by:
- Evaporator heater tape (std)
- Glycol
Glycol
Low Ambient
to -15°C
Water
LWE (°C)
-30
-20
-10
-5
0
4
10
16
20
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30
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EWTP110-540MBY
Air conditioning – Refreshes your life
E.
Specifications
Daikin Stepless
Single Screw Compressor
2pcs Brazed Plate
Heat Exchangers
* See EWAP~MBY Presentation
pCO2 Control Platform
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EWTP110-540MBY
Air conditioning – Refreshes your life
E.
Specifications – Heat Recovery Principle
High
Pressure
Condenser
Expansion
Valve
Low
Pressure
Compressor
Evaporator
60ooC
C
45
Hot Water Supply
50ooC
C
40
Useful Heat
Compressor Discharge Gas
7oC
12oC
Total Heat Recovery
• 65 to 85% Heat Recovery
• Lower LWE of 450C
OR
Partial Heat Recovery
(Desuperheater)
• 25 to 35% Heat Recovery
• High LWE upto 600C
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EWTP110-540MBY
Air conditioning – Refreshes your life
E.
Specifications -> Construction
From Condenser
Economiser
To Condenser
Compressor
Discharge
Evaporator
Daikin Single Screw
Compressor
Heat Recovery BPHE
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EWTP110-540MBY
Air conditioning – Refreshes your life
E.
Specifications - % Heat Recovery
% Heat Recovery
LWC
40/45
40/50
45/55
50/60
110
85%
85%
60%
35%
140
85%
85%
60%
35%
160
85%
85%
60%
35%
200
85%
85%
60%
35%
280
85%
85%
60%
35%
340
85%
85%
60%
35%
400
85%
85%
60%
35%
460
75%
75%
50%
30%
540
65%
65%
40%
25%
Avg
82%
82%
57%
33%
400
5,20
4,89
4,06
3,21
460
4,65
4,33
3,55
2,90
540
4,19
3,89
3,22
2,70
Avg
5,08
4,76
3,95
3,15
Where:
% Heat Recovery =
HC
CCHR Mode + PIHR Mode
COP in HR Mode
LWC
40/45
40/50
45/55
50/60
110
5,34
5,04
4,20
3,33
140
5,63
5,29
4,41
3,50
160
5,07
4,69
3,90
3,09
200
5,12
4,77
3,97
3,14
280
5,34
4,96
4,13
3,27
340
5,18
4,94
4,11
3,27
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EWTP110-540MBY
Air conditioning – Refreshes your life
E.
Specifications – Heat Recovery Principle
Hot water & condensing temperature
DAIKIN Heat Recovery Chiller
Optimized condensing temperature
T (°C)
Conventional Heat Recovery
Fixed condensing temperature
Conventional Heat Recovery
Uncontrolled Hot water temp
Set point
DAIKIN Heat Recovery chiller
Controlled Hot water temp
t0
t1
t2 t3
t4t5
Power input
Conventional Heat Recovery
DAIKIN Heat Recovery Chiller
PI (kW)
Saved Energy
t0
t1
t2 t3
t4t5
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EWTP110-540MBY
Air conditioning – Refreshes your life
E.
Specifications -> Inverter Fans
- Stable HP control, better part load efficiency
- Smooth operation, better colour of sound
- Linear sound reduction in function of ambient
Sound reduction in function of ambient temperature
0
15
20
25
30
35
40
Ambient temp.
(°C)
-1
-2
-3
-4
Further Reduction of
Sound power level
(dBA)
- 3dBa
Standard with Heat Recovery units
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EWTP110-540MBY
Air conditioning – Refreshes your life
Specifications – Control Possibilities
E.
Remote Mode Switch
Enable / Disable
PCO² Contoller
Self adaptive control to run at optimized
cooling capacity / Heat recovery ratio
Heat recovery
Temperature Sensor
L
N
A1
Pump Contact
A2
Additional Heating Source
OR
Gas, Oil, …
Electricity
Pump
Cooling
The Load
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EWTP110-540MBY
Air conditioning – Refreshes your life
E.
Capacity
kW
Specifications – Optimised Control
HR Capacity
CC
19 Bar
22 Bar
Optimized balancing between
CC & HR capacity
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High Pressure
Bar
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EWTP110-540MBY
Air conditioning – Refreshes your life
E.
Specifications – Installation
Boiler
• Used during peak & off-peak periods
• Maintains tank temperature
City Mains
Twin Pump Set
In-Line
Boiler
OPHR
• Used during off-peak
• Assists inline heater
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EWTP110-540MBY
Air conditioning – Refreshes your life
E.
Specifications – DICN Control
Without
=
Communication
• Erratic Control on LWE
• Loss of performance at terminals
• No plant optimization to meet load
• No defined lead or standby unit
• No defined unit running hours
Multiple Chillers
HR Chiller can be given priority -> increased reliability at part load
600C
LOAD
120C
120C
120C
LOAD
HR Chiller
500C
70C
70C
70C
Daikin’s Solution = DICN =
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EWTP110-540MBY
Air conditioning – Refreshes your life
F.
Practical Examples
Example: EWTP140MBYNN
At nominal conditions: 7oC and 12oC chilled water & 35°C ambient
 Cooling mode  fans at full speed  min condensing pressure
Cooling Capacity
Power Input
EER
138kW
54kW
2.56
 Heat recovery mode  increased condensing  max heating capacity
Hot Water
Heating Capacity
Cooling Capacity
Power Input
45oC
148kW
126kW
47,8kW
Hot Water
Heating Capacity
Cooling Capacity
Power Input
60oC
60,2kW
121kW
51kW
COP = 3.55
%HR = 35%
COP = 5.73
%HR = 85%
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EWTP110-540MBY
Air conditioning – Refreshes your life
F.
Practical Examples - Simple Payback
Based on:
• Energy Consumption of 0,15€ per kWhr
• 4hrs operation at 100% -> assume multiple chiller installation
Our Findings
Avg Payback of option OPHR:
• Hot Water 40/50
• Hot Water 50/60
42 Days or 8 weeks
102 Days or 20 weeks
Avg Payback of Chiller + OPHR:
• Hot Water 40/50
• Hot Water 50/60
1 Year
2,5 Years
Exceptional Investment for Customer!
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EWTP110-540MBY
Air conditioning – Refreshes your life
New Zealand Application
Mudhouse-River Co-operative
Affiliate: Daikin Australia
Installer: Martella
3 x EUWA200MZY
1 EUWA200MZY unit produces 15,000,000 l/yr
Cooling Mode
Total Cooling = 1.5MW
HR Mode
Total Cooling = 1.4MW
Total HR = 0.8MW
Conditions
LWE = -4oC
LWC = 52-55oC
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EWTP110-540MBY
Air conditioning – Refreshes your life
1. R-407C: the good choice !
2. High specifications
3. High Quality Components
4. Useful Options
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