Transcript GrocerSmartTM Energy Modeling Software -Revision Status Report& -Request For InputJuly 13, 2010 Agenda • • • Last time Summary of last RTF presentation June 1 2010 Updated analyses – • Defrost -

GrocerSmartTM
Energy Modeling Software
-Revision Status Report&
-Request For InputJuly 13, 2010
Agenda
•
•
•
Last time
Summary of last RTF presentation June 1 2010
Updated analyses
–
•
Defrost - Subcommittee feedback incorporated and measure
bundle sensitivity evaluated
Libraries
–
Selection methodologies to review
•
–
–
Compressors, Condensers, Cases
Key criteria and direction Approved by subcommittee
Lighting – Approved by subcommittee
Last time we met
•
Approved
–
–
–
•
Lighting data
Key Criteria
Condenser library
To be approved today
–
–
–
Libraries
Selection methodologies
Lighting – Approved by subcommittee
Future requests for approval from RTF
• Request full RTF approval for direction
of GrocerSmart 4.0 at August 2010
meeting
– Methodology (DOE 2.2r as reasonable live
model, template)
– Data sets
– Phases
• Return to RTF Q2 2011 for final request
for approval of new version
Task list and future requests of RTF by Phase
New GS 4.0 (Phase 1)
Savings calculation Live modeling DOE2.2r (Pending subcommittee
approval), (RTF approval August 2010)
methodology
New GS 4.0 (Phase 2)
Live modeling DOE2.2r
(No future requests of RTF)
In template
Building envelope, HVAC and efficient scenario
refrigeration systems (Pending subcommittee
approval), (RTF approval August 2010)
Building envelope and HVAC
(RTF Phase 2 approval by Q4 2011)
Compressors
Real world baseline (Pending subcommittee approval) Real world baseline
(RTF approval August 2010)
(No future requests of RTF)
Standardized efficient equipment (RTF approved)
Real world efficient equipment
(RTF Phase 2 approval by Q4 2011)
Refrigerant
Real world data
(Pending subcommittee approval), (RTF approval
August 2010)
Real world data
(No future requests of RTF)
Display cases
Real world baseline, standardized
efficient equipment (RTF approved)
Real world baseline and
efficient equipment
(RTF Phase 2 approval by Q4 2011)
Control strategies
and setpoints
Real world baseline, standardized
efficient equipment (RTF approved)
Real world baseline and
efficient equipment
(RTF Phase 2 approval by Q4 2011)
Condensers
Real world data (Pending
Real world data
subcommittee approval), (RTF approval August 2010) (No future requests of RTF)
Summary of immediate project direction
• Work toward subcommittee recommendation
for:
– Method
•
•
•
•
Interface drives inputs of key criteria
Key criteria drive inputs to live DOE2.2r model
Data in libraries and selection/filtering method
Model runs vs. fixed efficient scenario
– Phased approach for further improvements
Defrost
Sensitivity
Case Defrost Survey
70
58%
Weighted
Average:
49 min
Number of Cases
60
50
40
32%
30
20
10
2%
3%
20
24
5%
0
45
Minutes of Defrost
46
60
ECM Measure
Baseline to Measure Energy Savings at Various Defrost Minutes
7.5%
7.4%
88,597 kWh Savings
Percentage Savings
7.44%
Reasonable Range For Market
Representation
7.3%
88,522 kWh Savings
7.36%
Electric
Hot Gas
7.2%
7.1%
Savings calculated with the
lowest and highest number of
defrost minutes per day differ by
about 1%
(From 7.44% of system energy
use to 7.36%)
7.0%
28
42
49
56
Minutes of Defrost Per Day
84
Energy Efficient Case Measure
Baseline to Measure Energy Savings at Various Defrost Minutes
17.0%
16.9%
Percentage Savings
201,298 kWh Savings
16.92%
16.8%
Electric
Hot Gas
16.7%
Reasonable Range For Market
Representation
200,608 kWh Savings
16.70%
16.6%
Savings calculated vary by about 1%
(From 16.92% of system energy use to
16.5%
28
42
49
56
Minutes of Defrost Per Day
84
Floating Head Pressure Control
Baseline to Measure Energy Savings at Various Defrost Minutes
12.0%
Percentage Savings
11.9%
141,610 kWh Savings
11.90%
11.8%
Reasonable Range For Market
Representation
141,650 kWh Savings
11.79%
11.7%
11.6%
Savings calculated vary by about 1%
(From 11.90% of system energy use to 11.79%)
11.5%
28
42
49
56
Minutes of Defrost per Day
84
Electric
Hot Gas
Floating Suction Pressure Control
Baseline to Measure Energy Savings at Various Defrost Minutes
2.9%
35,010 kWh Savings
2.8%
2.78%
Percentage Savings
2.7%
2.6%
2.5%
Electric
Hot Gas
2.4%
Reasonable Range For Market
Representation
2.3%
2.2%
24,490 kWh Savings
2.06%
2.1%
Savings calculated vary by about 26%
(From 2.78% of system energy use to 2.06%)
2.0%
28
42
56
49
Minutes of Defrost per Day
84
ECM and Floating Head Measures
Baseline to Measure Energy Savings at Various Defrost Minutes
12.1%
12.0%
143,240 kWh Savings
Percentage Savings
12.03%
11.9%
Reasonable Range For Market
Representation
143,460 kWh Savings
11.93%
11.8%
11.7%
Savings calculated vary by about 1%
(From 12.03% of system energy use to 11.93%)
11.6%
28
42
49
56
Minutes of Defrost per Day
84
Electric
Hot Gas
ECM, Floating Suction, and Floating Head Pressure
Baseline to Measure Energy Savings at Various Defrost Minutes
14.5%
14.4%
171,250 kWh Savings
14.19%
14.3%
Percentage Savings
14.2%
14.1%
Electric
Hot Gas
14.0%
13.9%
Reasonable Range For Market
Representation
13.8%
13.7%
161,890 kWh Savings
13.60%
13.6%
Savings calculated vary by about 4%
(From 14.19% of system energy use to 13.60%)
13.5%
28
42
49
56
Minutes of Defrost per Day
84
Efficient Case with Floating Head Pressure
Baseline to Measure Energy Savings at Various Defrost Minutes
19.6%
231,830kWh Savings
19.48%
Percentage Savings
19.5%
19.4%
231,640kWh Savings
19.28%
19.3%
Reasonable Range For Market
Representation
19.2%
19.1%
Savings calculated vary by about 4%
(From 19.48% of system energy use to 19.28%)
19.0%
28
42
49
56
Minutes of Defrost per Day
84
Electric
Hot Gas
Efficient Cases with Floating Head and Suction Pressure
Baseline to Measure Energy Savings at Various Defrost Minutes
21.0%
Percentage Savings
20.9%
249,110 kWh Savings
20.8%
20.77%
Electric
Hot Gas
20.7%
245,480 kWh Savings
20.62%
Reasonable Range For Market
Representation
20.6%
Savings calculated vary by less than 1%
(From 20.77% of system energy use to 20.62%)
20.5%
28
42
49
56
Minutes of Defrost per Day
84
Floating Suction and Head Pressure Measure
Baseline to Measure Energy Savings at Various Defrost Minutes
14.1%
168,670 kWh Savings
13.97%
14.0%
13.9%
Percentage Savings
13.8%
13.7%
Reasonable Range For Market
Representation
13.6%
Electric
Hot Gas
13.5%
13.4%
13.3%
159,720 kWh Savings
13.42%
Savings calculated vary by about 1%
(From 11.90% of system energy use to 11.79%)
13.2%
13.1%
28
42
49
56
Minutes of Defrost per Day
84
Recommendation
• We propose that a standard, market data
informed configuration for defrost cycle and
length can be assumed for powered defrost,
and that this assumption will cause minimal
variance in calculated energy savings
(typically < 1%).
• Recommendation is a total of 49
minutes/day, using the number of defrost
cycles as appropriate for the case type
Libraries
Libraries
•
•
•
•
Condensers
Cases
Compressors
Lighting
Condenser Library
Name
Model number
Type
Refrigerant
Fan hp
Single or
Double
Row
Number of fans
No. of pumps
Bohn
Bohn
Bohn
Bohn
Bohn
Bohn
Bohn
Bohn
Bohn
Bohn
Bohn
Bohn
Bohn
Bohn
Bohn
Bohn
Bohn
Bohn
Bohn
Bohn
Bohn
Bohn
Bohn
Bohn
BNQ-S01-A005
BNQ-S01-A006
BNQ-S02-A008
BNQ-S02-A010
BNQ-S02-A011
BNQ-S03-A016
BNQ-S03-A017
BNQ-S04-A021
BNQ-S04-A023
BNQ-S05-A026
BNQ-S05-A029
BNQ-S06-A034
BNQ-S07-A042
BNQ-D04-A016
BNQ-D04-A021
BNQ-D06-A023
BNQ-D06-A031
BNQ-D06-A034
BNQ-D08-A041
BNQ-D08-A046
BNQ-D10-A052
BNQ-D10-A057
BNQ-D12-A069
BNQ-D14-A083
Air-Cooled
Air-Cooled
Air-Cooled
Air-Cooled
Air-Cooled
Air-Cooled
Air-Cooled
Air-Cooled
Air-Cooled
Air-Cooled
Air-Cooled
Air-Cooled
Air-Cooled
Air-Cooled
Air-Cooled
Air-Cooled
Air-Cooled
Air-Cooled
Air-Cooled
Air-Cooled
Air-Cooled
Air-Cooled
Air-Cooled
Air-Cooled
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
Single
Single
Single
Single
Single
Single
Single
Single
Single
Single
Single
Single
Single
Double
Double
Double
Double
Double
Double
Double
Double
Double
Double
Double
1
1
2
2
2
3
3
4
4
5
5
6
7
4
4
6
6
6
8
8
10
10
12
14
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Rated air flow(CFM)
5,400
5,200
11,200
10,800
10,400
16,100
15,600
21,500
20,800
26,900
26,000
31,200
36,400
22,300
21,500
20,800
32,300
31,200
43,000
41,600
53,700
52,100
62,500
72,900
Capacity
(MBh/10 TD)
Fan kW
52
61
80
103
115
156
172
207
229
259
286
344
416
160
207
229
310
344
414
458
518
573
687
831
0.373
0.373
0.746
0.746
0.746
1.119
1.119
1.492
1.492
1.865
1.865
2.238
2.611
1.492
1.492
2.238
2.238
2.238
2.984
2.984
3.73
3.73
4.476
5.222
EER
139.41
163.54
107.24
138.07
154.16
139.41
153.71
138.74
153.49
138.87
153.35
153.71
159.33
107.24
138.74
102.32
138.52
153.71
138.74
153.49
138.87
153.62
153.49
159.13
Condenser Selection
FEA audits cases
and walk-ins, and
the evaporator
loads are summed.
Field staff audits
condenser
Field staff enters
condenser
characteristics;
·
·
·
·
NO
Type
Refrigerant
Number of Fans
Number of Rows
.
Model number
present
YES
NO
Is condenser
model in library?
Condenser
data filtered by
condenser
characteristics
Condenser with closest
capacity that is less than
refrigeration load
multiplied by oversize
factor is selected
Refrigeration
load is
multiplied by
oversize factor
NO
Are there condensers in the
library within a 5% variance of
refrigeration load multiplied by
over size factor?
YES
YES
Data set for
condenser
included in
model
If condenser model was not located in
library during audit, model is re-ran
post-audit with correct manufacturer’s
information prior to incentive
calculation, and updated data is added
to GrocerSmart library.
List of possible condensers
with capacity within 5% of
previously determined
refrigeration load multiplied
by over sizing factor. FEA
selects condenser that
most closely matches over
size load
RS Survey showing design
multiplier calculation for
condensers
Store
Store A
Store A
Store B
Store B
Store B
Store C
Store C
Store C
Store D
Store D
Store E
Store E
Store E
Store F
Store F
Temp Evaporator Load Total Condenser Capacity
LT
67,600
103,200
MT
192,840
314,500
LT
108,120
147,500
MT
341,620
496,200
MT
75,000
92,700
LT
208,024
325,293
MT
399,220
582,517
MT
374,509
539,122
MT
317,924
507,477
MT
100,760
162,592
LT
180,810
277,600
MT
154,000
173,400
MT
520,640
840,100
LT
64,000
114,775
MT
241,000
400,512
Type
Air
Air
Air
Air
Air
Air
Air
Air
Air
Air
Air
Air
Air
Air
Air
Oversize Factor
1.5
1.6
1.4
1.5
1.2
1.6
1.5
1.4
1.6
1.6
1.5
1.1
1.6
1.8
1.7
Type
Evap
Evap
Evap
Evap
Evap
Evap
Evap
Evap
Evap
Evap
Evap
Evap
Oversize Factor
2.4
2.0
2.0
2.2
2.2
2.1
2.1
1.9
1.9
1.8
1.9
1.8
Air Cooled Condenser
average over-size
factor = 1.5
(This is a small sample of surveyed stores)
Store
Store D
Store D
Store G
Store H
Store M
Store M
Store O
Store P
Store S
Store V
Store X
Store Z
Temp Evaporator Load Total Condenser Capacity
LT
137,090
331,500
MT
53,330
105,408
MT
348,690
705,700
LT
109,400
238,400
LT
43,200
95,410
LT
113,000
241,037
LT
73,020
152644
HT
470,300
884700
LT
15,450
28583
LT
137,530
248424
LT
50,750
96751
LT
68,660
126938
Evap Cooled
Condenser average
over-size factor = 2.1
Case Library
Manufacturer
TYPE
Compressor Type
Light
Fan
ASH
Product Type
Model
NUMBER-OFDOORS
Hill Phoenix
Hill Phoenix
Hill Phoenix
Hill Phoenix
Hill Phoenix
Hill Phoenix
Hill Phoenix
Hill Phoenix
Hill Phoenix
Hill Phoenix
Hill Phoenix
Hill Phoenix
Hill Phoenix
Hill Phoenix
Hill Phoenix
Hill Phoenix
Hill Phoenix
Hill Phoenix
Hill Phoenix
Hill Phoenix
Hill Phoenix
Hill Phoenix
Hill Phoenix
Hill Phoenix
DOORS MULTI-DECK
DOORS MULTI-DECK
DOORS MULTI-DECK
DOORS MULTI-DECK
DOORS MULTI-DECK
DOORS MULTI-DECK
DOORS MULTI-DECK
DOORS MULTI-DECK
DOORS MULTI-DECK
DOORS MULTI-DECK
DOORS MULTI-DECK
DOORS MULTI-DECK
DOORS MULTI-DECK
DOORS MULTI-DECK
DOORS MULTI-DECK
DOORS MULTI-DECK
DOORS MULTI-DECK
DOORS MULTI-DECK
DOORS MULTI-DECK
DOORS MULTI-DECK
DOORS MULTI-DECK
DOORS MULTI-DECK
DOORS MULTI-DECK
DOORS MULTI-DECK
CONVENTIONAL
PARALLEL
CONVENTIONAL
CONVENTIONAL
PARALLEL
PARALLEL
PARALLEL
PARALLEL
PARALLEL
PARALLEL
PARALLEL
PARALLEL
PARALLEL
PARALLEL
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
T8
LED
T8
T8
LED
LED
T8
T8
T8
T8
T8
T8
T8
T8
NA
NA
T8
T8
T8
T8
T8
T8
T8
T8
SHADED POLE
ECM
SHADED POLE
SHADED POLE
SHADED POLE
SHADED POLE
SHADED POLE
SHADED POLE
SHADED POLE
SHADED POLE
SHADED POLE
SHADED POLE
SHADED POLE
SHADED POLE
SHADED POLE
SHADED POLE
SHADED POLE
SHADED POLE
SHADED POLE
SHADED POLE
SHADED POLE
SHADED POLE
SHADED POLE
SHADED POLE
NA
NA
STANDARD
STANDARD
STANDARD
STANDARD
NA
NA
NA
NA
NA
NA
NA
NA
STANDARD
STANDARD
STANDARD
STANDARD
STANDARD
STANDARD
STANDARD
STANDARD
STANDARD
STANDARD
FROZEN FOOD
FROZEN FOOD
FROZEN FOOD
FROZEN FOOD
FROZEN FOOD
FROZEN FOOD
FROZEN FOOD
FROZEN FOOD
FROZEN FOOD
FROZEN FOOD
FROZEN FOOD
FROZEN FOOD
FROZEN FOOD
FROZEN FOOD
FROZEN FOOD
FROZEN FOOD
FROZEN FOOD
FROZEN FOOD
FROZEN FOOD
FROZEN FOOD
FROZEN FOOD
FROZEN FOOD
FROZEN FOOD
FROZEN FOOD
ONRZHBO
ONRZHBO
RBH-8
RBH-12
RBH-8
RBH-12
RZH-2
RZH-3
RZH-4
RZH-5
RIZH-2
RIZH-3
RIZH-4
RIZH-5
CZERC
CZERF
ORZC
ORZF
ZER
ZERGC
ZERGF
ZR2G
ZRTGC
ZRTGF
2
2
2
3
2
3
2
3
4
5
2
3
4
5
5
5
5
5
5
5
5
5
5
5
Cases Selection
Field staff audits
refrigerated cases
in store
Model number
present ?
YES
Is the model
number in the
GS4 Library
YES
Field staff enters
case
characteristics;
NO
·
·
·
·
·
·
·
·
·
Manufacturer
Type of Case
Configuration
Product Type
Line-Up length
Number of Doors
Lighting Type
Fan Type
ASH Type
Case library
data filtered by
case
characteristics
Field Staff compares
default zone load with
library choices. Is there a
reasonable match?
NO
FEA Chooses
library values for
case
YES
NO
Field staff double checks
auto populated library
data against actual case
load, lights, and fans
Data set for
case
included in
model
List of possible cases from
library with varying zone loads
within 5% of previously RTF
approved default zone load
for case type
FEA Chooses previously
RTF approved default
zone load for case type
If case model was not in library at audit, the correct case information is
entered into the model post-audit to calculate incentive payments, and
the library will be updated with the correct load information for that case.
GrocerSmart displays
approved default zone load
for case type
Compressor Library
Manufacture
Copeland
Copeland
Copeland
Copeland
Copeland
Copeland
Copeland
Copeland
Copeland
Copeland
Copeland
Copeland
Copeland
Copeland
Copeland
Model
2DA3-0600-TFC
2DA3-060E-TFC
2DA3-060E-TFD
2DA3-060L-TFC
2DA3-060L-TFD
2DA3-0750-TFC
2DA3-0750-TFC
2DA3-075E-TFC
2DA3-075E-TFC
2DA3-075L-TFC
2DA3-075L-TFC
2DA3F23K0-TFC
2DA3F23KE-TFC
2DA3F23KE-TFC
2DA3F23KE-TFD
Application
LT
LT
LT
LT
LT
AC
MT
AC
MT
AC
MT
LT
LT
LD
LD
Refrigerant
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
Min SCT
70
70
70
70
70
70
70
70
70
70
70
70
70
40
40
Max SCT
130
130
130
130
130
140
140
140
140
140
140
130
130
130
130
Min SST
-40
-40
-40
-40
-40
10
-5
10
-5
10
-5
-40
-40
-40
-40
Min SST
0
0
0
0
0
55
45
55
45
55
45
0
0
0
0
Performance Curves
Carlyle Database
Copeland
Database
DOE2.2r Inputs
Mass Flow Capacity
Mass Flow Capacity
Cooling Capacity
Cooling Capacity
Power Draw
Power Draw
Power Draw
CoolingCapacity Mass Flow Refrigerant Enthalpy
Compressor Selection
FEA enters estimated
horsepower. A compressor
with matching hp and
refrigerant is selected from
eQUEST library.
FEA audits cases
and walk-ins, and
the evaporator
loads are summed.
Field staff audits
compressors in
store
NO
Refrigeration load is
multiplied by standard design
over size factor.
FEA is prompted to increase
HP of compressors to more
closely match evaporator
load
NO
Are the compressor
capacities within 10% of the
refrigeration load multiplied
by over size factor?
Are the
Compressors in the
library?
YES
Are the
Compressors
Copeland?
YES
Data set for
case
included in
model
NO
Compressor performance
data is mapped to
comparable Copeland model.
Yes
If compressors were not in library,
compressor performance data is
collected and implemented in model
by engineering prior to incentive
payment. New compressor data is
incorporated into library.
RS Survey showing design
multiplier calculation for
compressor
Store
Store C
Store D
Store F
Store H
Store I
Store L
Store O
Store P
Store S
Store T
Store U
Store V
Store X
Store Y
Store Z
Temp Evaporator Load TotalCompressor Capacity Total Oversize Factor
LT
208,024
219,200
1.1
LT
137,090
197,419
1.4
LT
64,000
71,600
1.1
LT
109,400
139,500
1.3
LT
24,700
30,900
1.3
LT
105,000
159,300
1.5
LT
73,020
88,804
1.2
LT
75,310
94,200
1.3
LT
15,450
17,300
1.1
LT
144,890
166,600
1.1
LT
132,350
164,977
1.2
LT
137,530
167,220
1.2
LT
50,750
57,597
1.1
LT
165,000
226,900
1.4
LT
68,660
77,040
1.1
Store
Store A
Store B
Store B
Store C
Store C
Store D
Store D
Store D
Store E
Store F
Store G
Store H
Store I
Store J
Temp Evaporator Load TotalCompressor Capacity Total Oversize Factor
MT
192,840
229,900
1.192180046
MT
341,620
382,700
1.120250571
MT
75,000
76,600
1.021333333
MT
399,220
440,300
1.102900656
MT
374,509
417,600
1.115059985
MT
317,924
352,498
1.108749261
MT
53,330
60,988
1.143596475
MT
100,760
115,298
1.144283446
MT
520,640
582,600
1.119007376
MT
241,000
281,500
1.168049793
MT
348,690
469,000
1.345034271
MT
120,800
142,300
1.177980132
MT
92,130
99,582
1.080885705
MT
844,970
942,269
1.115150834
LT Compressor
average over-size
factor = 1.2
MT Compressor
average over-size
factor = 1.1
Discussion