# DOE PUBLIC WORKSHOP ON WATER HEATER TEST PROCEDURES FEBRUARY 12, 1997 DR. CARL HILLER ELECTRIC POWER RESEARCH INSTITUTE PALO ALTO, CA DOE PUBLIC WORKSHOP ON WATER HEATER TEST PROCEDURES
FEBRUARY 12, 1997 DR. CARL HILLER ELECTRIC POWER RESEARCH INSTITUTE PALO ALTO, CA 

# E

### 150 1 40 ..... RA N.................................... 13 0 . . ..... ............. ..................... ...... .............. ..... ......... ....................... .................... ................ ... ............................. ... ....... . 

### 130 .. .. ...---..... -..... ------- ----- ----- ---------------- 130 -- 211/96

- 1/31/97 120 -- 66.7 gpd 110 -- 100 - 

### 9 0 .................... .................................................................................................................................................................................................. 0 

### 80 70 -.... ,60 .. .

### e D 

### 50
20 

### 10

0 0 0.5 1 1.5 2 2.5 3 

### Time (hours)

=-- once per month -- once per week - once per day 

### 150 140 ········RAN
.................. _-_ ............- ....... 

### 130 ........ 2/1/96 - 1/31/97
........... ....--_.................. 

### 120 66.7 gpd 

### 110 _100 rJ) c 

### 90 0 m 

### 80 C> 

# - 70 3: m 

### 60 L... 0 

### 50 40 30 20 10

0 0 0.5 1 1.5 2 2.5 3 Time (hours)

----- once per month -R- once per week --I- once per day

### 150 14 0 R AN ............................................................................................................................................................................................ 140 -----....... RAN------- 130 - --- 11/1/94- 10/31/95 120 -- 59.4 gpd 

### 120 .................... : -....... . 110

__ 100 1 0 0 . . .............................................................................. .......... .......................... ............................................... .......... ............... 0



### - 80 70-

- 60 40 

### 30 20 - 

### 10

0 i I l I I l I l I 0 0.5 1 1.5 2 2.5 3 Time (hours) |-- once per month
- once per week - once per day 

### 150 140 130 120 110 _100 C/) c:: 

### 90 0 (tJ 

### 80 C)
......... 

### 70**~ -~**  

### 60 0 

### 50 40 30 20 10

0 0 -RAN

_____________________ _ 11/1/94 - 10/31/95 59.4 gpd



### 0.5 1 

### 1.5 Time (hours) 

### 2 

### 2.5

------ once per month ---- once per week**~** once per day 

### 3

### 150 14 0 

### ; A M A ........................................ .............................................. ................................ 

### 140 .AMA------------------- 130 - ..... 11/1/94 - 10/31/95 120 - 28.0 gpd 

### 110 100 . ............... ........................................ ......................... ..... .................. ................................... .................................. .. ._.100 I 90 9 0 ........... .......... ............................ .................................. ...................... ........ ................................... ............... ............. 80

- 70- 

### 60 0 o 0
... ,. 30 20



### 10 --- X----------------- 

### "-i 0 0.5 1 1.5 2 2.5 3 Time (hours)

-e- once per month -- once per week - once per day 150**~--------------------------------------------------.** 140 - ··AMA 130 - .. ............... 11/1/94 - 10/31/95 120 28.0 gpd 110

....... 100 CIJ 

## 5 90 - ... (tJ 80 - .... C> 

# i 70**~** 

### 60 _ ...... 

### o 50 _ .... 40 _. .. . ....**···································~IR** 30

# .......-:====:==:==========='-"'-~~===::II'::::~===----=====r 20·1I!!t:· 10 - ..... ............................ ..... 

# - - - ..... 

# - o**+----+----+-:--~----~:--~--~:----1----+I----+----+:----+---~** 

# o 0.5 

### 1 1.5 

### Time (hours) 

### 2 2.5

---- once per month --m-- once per week**~** once per day 

### 3

### 150 140

------------------- SCH.--------------------- 130

- - 11/1/94-10/31/95 

### 120
- 47.8 gpd 110 _..100 C 0 0 . ............... .......... .................... ........................................................................................... ............... 0 

### 80... .... .... ..... ...... 70 L60 

### D5040 30 20 10 ---------...................................... 

### 0 0.5 1 1.5 2 2.5 3 Time (hours)
-e- once per month --- once per week -- once per day 

### 150**~------------------------------------------------~** 

### 140 130 120 110 _100 en c:: 

### 90 0 

### cu 

### 80 C> 

# - 70 3: cu 

### 60 L- 

## a 50 40 30 20 10

0 0 SCH

...... 11/1/94 - 10/31/95

47.8 gpd



### 0.5 1 

### 1.5 Time (hours) 

### 2 

### 2.5

-.- once per month ---m-- once per week -I- once per day 

### 3

### 150 140 6--------------------90 

### 130 - Oct 94
- Mar 95 1 4 0 0
- 69 0 ........................................................................................................................................ ........................................................................................
U 8) 

### 1 90 0 

### 'i~ 80 0) 

### 70
- ----- ----- ' 7o - *****- *-*- - *-. ..................................................................................................................... 0 

### 40 30 20

0 I I I I I 

### 0 0.5 1 1.5 2 2.5 3 Time (hours)

_-- once per month -w- once per week -z- once per day 

### 150**~------------------------------------------------~** 

### 140 130 120 110 _100 CI) c 

### 90 

### o co 80 C) 

# i 70**~** 

### 60 

### o 

### 50 40 30 20 10 ························690

. Oct 94 - Mar 95

63.1 gpd



# o**+---~---+--~----+---4---~---4----~--~--~---+--~** 

# o 0.5 1 

### 1.5 Time (hours) 

### 2 

### 2.5

----- once per month -III- once per week**~** once per day 

### 3

### 150 140 -.----------------.. 691 130 69 1 ........................... ....................................................................................... 

### 130
- 0- Oct94- Mar95 120 - 34.5 gpd 1 10 . ................................... ..... ......................................................... 110 

### 100 (/) 

### § 900 ................................................... ........................................................................ ......................................................... 0 

### Ca 80 70 --- -- . .... . ..
70 ............... ................... ................................................................................. .. ........... ................... .................. ', 

### 0 3 0 .............

10 ..................... ............. 0 0.5 1 1.5 2 2.5 3 Time (hours)
-®- once per month -x- once per week -- once per day 

### 150**~-----------------------------------------------.** 

### 140
- ·····691 

### 130
- ........................ Oct 94 - Mar 95 

### 120 _ .. 34.5 gpd 

### 110 _100 C/) c: 

### 90 o 

### co 80 - .. 0) 

# i 70 _ ..**~** 

### 60
- .. 

## o 50
- 40
- .. 30

## -~~~~~~~==~==~~~:_.= 

# ........=

........=

........=

....=

........= ......=

.......=

.....**~~.=** .......

## =~

..

## ==~~~ 20 .....................................**~.~**

### ......
.......**~** 

### 10**w~~~--~~==~-~================···=····~····~····~·····~================f** ....'%: ........................... 

# o**+----+----+:----+----~1--~--~:~--4---~+----+----+1----+---~** 

# o 0.5 

### 1 1.5 Time (hours) 

### 2 2.5

-e- once per month -D- once per week -I-- once per day 

### 3

### 150 14 0 

### ; ... .692 . ........................................................................................... 140 - ---------------....................... 692 

### 130 0 

### fOct 94 - Mar 95 12 . . 70.1 gpd 110 ._.100 

### c 90 0 9 8 0 , ........ ........... ........................ ......................................................... ................ ....................................................................... 0 

### '~ 80 70 

### 60 

### 50 40 30

- 

### 20

10 

### 0iI I l I I I 0 0.5 1 1.5 2 2.5 3 Time (hours) -|- once per month - once per week - once per day 

### 150**~-------------------------------------------------** 

### 140 130 120 110 _100 en c: 

### 90 0 co 

### 80 C> 

# - 70**~** co 

### 60 '- 0 

### 50 40 30 20 10

0 0 ···················692

.................. Oct 94 - Mar 95 70.1 gpd



### 0.5 1 

### 1.5 Time (hours) 

### 2 

### 2.5

---e- once per month ---m--- once per week -I- once per day 

### 3

### 150 140 -693-------------------------- 1 30 -- . .................... ...... ................................... 

### 72.0 gpd 110 1 1

9 0 . . . ...................... ..... ...... ................................. .................. .............................................. ................ .......................... 0

1 0 -- - --.........................----.................. .... .......------ ..--- - - -- ... - ........... ................................... 

### i' 80 60 

### 50 40 

### 30 2 0
- ...............-....................... 10



### 0 

### T I 

## i I I I I - 

### 0 0.5 1 1.5 2 2.5 3 Time (hours)
+-- once per month -- once per week -x once per day 

### 150**~------------------------------------------------~** 

### 140 130 120 110

........ 100 en c 

### 90 o co 

### 80 C>



### --- 70

# ~ 60 

### o 50 40 30 20 10 ----693

__________________________ Oct 94 - Mar 95 72.0 gpd



# o**+---~---+--~----+---1----+--~----r---~---r--~--~** 

# o 0.5 1 

### 1.5 Time (hours) 

### 2 

### 2.5

------ once per month --- once per week**~** once per day 

### 3

### 150 140 TIE----------------- 1 4 0 ---- TI

E . .............................................. . ............................................................................................. ................................................. 

### 130 2/1/96-1/31/97 ..................................... 1 3 0 ............................................................................... ........ /1/96

- 1 /3 1/97 72.1 gpd 

### 120 - 210 110

-

i0 70 X 60- 

### 50 40 50 .......... ............. ......

. ............................................................... ......... ..... .................. . . . . ... .. 30 ................................ 

### 20 10



### 0 O I I I i I I I I 0 0.5 1 1.5 2 2.5 3 Time (hours)

-*- once per month -u- once per week -x once per day 

### 150 140 130 120 110 _100 rJ) c: 

### 90 0 C\l 

### 80 C>
......... 

### 70**~** C\l 

### 60**~** 0 

### 50 40 30 20 10

0 0 ·······TIE

.. 2/1/96 - 1/31197
....

72.1 gpd



### 0.5 1 

### 1.5 Time (hours) 

### 2 

### 2.5

--- once per month -IB--- once per week ---I- once per day 

### 3

### 150 140 ----- 695------............. 130 -.... ........ Oct 94
- Mar 95
10 0 - ........... . . 94.. . . . . 5 . .......................................................................-................ .................. .......... .......... . ~120 

### - 68.9 gpd

C 9 0 -. ........................... .... ........................................................................................... ........................ ..................................... ......... 

### 110 

# O90 80

- 6 0 - ............................................................. ... ...... ................. . ... ..................................... 

### · 70 4 0 .............-.......- ...... 60......== 50 

### 40 30 20 ----------- .. . -- --- - --------- - . -.-.. . . ..... c 

### 10

0 

### 0 0.5 1 1.5 2 2.5 3 Time (hours) -®- once per month a- once per week -- once per day 

### 150**~------------------------------------------------~** 

### 140 130 120 110 _100 en c:: 

### 90 0 co 

### 80 C>
........ 

### 70**~ ~**  

### 60 0 

### 50 40 30 20 10

0 0 ·····695 .....Oct 94 - Mar 95 68.9 gpd



### 0.5 1 

### 1.5 Time (hours) 

### 2 

### 2.5

-e- once per month --- once per week -I- once per day 

### 3

### 150 140 ------ 696 

### 120-- 83.4 gpd 110 1 2 0 . ...... ......................................... ............... ...................................... .....

............................................. ................................................

_,100 

### 0- 90 70

### 60 50



### 40 30
- 20 ................................ 10

0 

### 0 0.5 1 1.5 2 2.5 3 Time (hours)

-- once per month -- once per week -- once per day 

### 150 140 130 120 110 _100 C/) c: 

### 90 0 co 

### 80 C> 

# -- 70 3: co 

### 60**~** 0 

### 50 40 30 20 10

0 0 ········696

.......... Oct 94 - Mar 95 83.4 gpd



### 0.5 1 

### 1.5 Time (hours) 

### 2 

### 2.5

----- once per month ----- once per week -I- once per day 

### 3

### 150 140 697--------- 

### 130 1


### ..................... Oct94 - Mar 95
. .. 

### 120-- 124.3 gpd 1

2 0 ........ .... 

### 110 c 90

' 80 70 

### 160 

### 50 40

2 0 ----... ..................................... .... ...... ... ................................... ... . ........................................ ....................................... ........... . .. . . .. . . .. . . .. . . .. . . .. . .. . .. 

### 0 .. .. .. .. ..... ...................................... ................. .............. .. ............. ................................. 0 0.5 1 1.5 2 2.5 3 

### 0 0.5 1 1.5 2 2.5 3 Time (hours)

e once per month -- once per week - once per day 

### 150**~------------------------------------------------~** 

### 140 130 120 110 -.100 (/) 

### § 90 m 80 C> 

# i' 70**~** 

### 60 

### a 50 40 30 20 10 ·············697

. Oct 94 - Mar 95 124.3 gpd



# o**+---~---+----~--+---~---+--~----r---~--~--~--~** 

# o 0.5 1 

### 1.5 Time (hours) 

### 2 

### 2.5

--- once per month ---m---- once per week --I- once per day 

### 3

### 150 140 698--------------------- 13 0 - . . .... . . . . ... . . .6 ct 94 ' M a r 95
................................................ ..................................................................................... 

### 130 _ 7..........................Mar 9 1

30 - Oct 94
- Mar 95 76.6 gpd 120...... ...... .......- - 

### 110 ._.100
- C() C 

### 90 . ............................................................... ................................ ........................... ................. 

### - 90 0 

### 7' 80 70' 70 60 40 - 

### 30 .................. 10 -------................................



### 0 0 0.5 1 1.5 2 2.5 3 Time (hours) -®- once per month -n- once per week - once per day 

# I 150 140 130 120 110 _100 CI) c: 

### 90 0 «I 

### 80 C>
........ 

### 70 3:**~** 

### 60 0 

### 50 40 30 20 10

0 0 ········698

......................... Oct 94 - Mar 95 76.6 gpd



## ...........................................**~** 

## ...........;=: ...**~~=====~~--~=I**


### 0.5 1 

### 1.5 Time (hours) 

### 2 

### 2.5

--e- once per month -III- once per week**~** once per day 

### 3

### 150 140 --------- 699 130 ----------- ct 94
- Mar 95 49.3 gpd 120 110

, 100 0 90 .... ............................................... ............................... ......................................................... .................... ......................... ... 80 

### 70 60 50 

### 40 30 -- 10

0 I 

### 0 0.5 1 1.5 2 2.5 3 Time (hours) -|- once per month -a- once per week x once per day 

### 150 140 130 120 110 _100 Cf) c: 

### 90 0 co 

### 80 C)

.......... 

### 70**~** co 

### 60 '- 0 

### 50 40 30 20 10

0 0 ···699

........................... Oct 94 - Mar 95 49.3 gpd



### 0.5 1 

### 1.5 Time (hours) 

### 2 

### 2.5

----- once per month ---- once per week**~** once per day 

### 3

### 150 140 -------------------- 700 130 -.......... Oct 94
- Mar 95 120 - 38.0 gpd 

### 120 110 1 1 0 . . .................................. ............................................................................................ .......................
0 7 0 -. .---- ............................ 6 0 .......................................................................................................................................................................................................... 80 70 X60 

### 50 40 - II
0 0.5 1 1.5 2 2.5 3 10 0 0.5 1 1.5 2 2.5 3 Time (hours)

- once per month -W once per week -- once per day 

### 150**~------------------------------------------------~** 

### 140 130 120 110 _100 en c 

### 90 

### o co 80 C) 

# i 70**~** 

### 60 

## o 50 40 30 20 10 ························700

.......... Oct 94 - Mar 95 38.0 gpd



# o**+_---r---+--~~--+_--~--_+--~----r_--~--_r--~--~** 

# o 0.5 1 

### 1.5 Time (hours) 

### 2 

### 2.5

----- once per month --- once per week --r- once per day 

### 3

### 150 140 -- 1 1 0 F D e livery T

......................................... ..................... ...

.................. ...... ................... ...................... ............................ . .. 140
- 

### lOFDeliveryT instantaneous full-tank draw _o. 120o-- -- .ri_--4.......... 

### .....

1

# 8 0 

# .................
................... .............. ....................... . . . . . .....---- v--............................................................... ...................... 

### 60110 o' 

### 50- 0

M 30 . .............. .................. ........................................... ........................................................ ..... ................................ ........ -I 70 a)



### . 60 50 <40 x 30 10

0 --------- ...- .................. 

### 0 0.5 1 1.5 2 2.5 3 Time (hours)

-a- 50 gal, 4.5 kW/4.5 kW -a-- 50 gal, 35 kBtu/h --- 80 gal, 4.5 kW/4.5 kW - 50 gal, 4.5 kW 

### 150**~------------------------~------------~--------~** 

### 140 f-
.................. 110 F Delivery T ............................................................................................... 

# J.. . .............. ···1 instantaneous full-tank draw I


### ....... 130 f-
.................................. - en 

### § 120 r

### CCJ110 f-. 0> 

# -**~** 

### 100 r- ID 

# ro 90 f-.

## ~ 80 f- 

# ......................................................································l
o I: 

### 70 r- .................................................. .............................

# y**~** 60 f-··················································r·

### ~**~~** .f-_
....._

.. ·_··_···.... 

# 1 .... ·····_······__--__ _**~** 

### 30 f-**~** 

### 20 r- .. 

### 10 r- 

# ..................... J



# o**+---~----~I----~--~----~--~I----~----~--~----~--~--~** 

# o 0.5 

### 1

- 50 gal, 4.5 kW/4.5 kW - 50 gal, 35 kBtu/h 

### 1.5 

### Time (hours) 

### 2 2.5

- 80 gal, 4.5 kW/4.5 kW - 50 gal, 4.5 kW 

### 3

### 150 140 ... 135 F Delivery T ...... instantaneous full-tank draw : . 

### o,
I 70..........



### X30 10 

### 50 > 1 0 0 - - .......-...... .... 

### .............. . 

### ...... .......... 

### go0 - - ..... ........... ................................... -----.-. ..

... .... .......... ..... .... ........... ..... ..... ..... ... .. .. . ............ . ....... .......... . ..... .... ....... .. ... .

7 0 ........................ . ........ .............. I.... .... ............... ...................... . ......................


### 0 0.5 1 1.5 2 2.5 3 Time (hours)

-A- 50 gal, 4.5 kW/4.5 kW -B-- 50 gal, 35 kBtu/h -o- 80 gal, 4.5 kW/4.5 kW -x- 50 gal, 4.5 kW 

### 150**~------------------------------------~------------,** 

### 140 -130 en 

### § 120 m 

### 110 C> 

### ':" 100 (l) 

## ..... 90 m**~** 

### 80 

## ..... 0 

### 70 J: (l) 

### 60 ..c m 

### 50 <U > 

### 40 

# « >< 

### 30 m**~** 

### 20 10

0 0 .. . .... 135 F Delivery T

instantaneous full-tank draw

........................................................



### ································-1=····· ·············································l······............................... ": ...... . 

# ···-1

0.5 1 

### 1.5 Time (hours) 

# ·······1·

I 

### 2 I 

### 2.5

-.- 50 gal, 4.5 kW/4.5 kW - 50 gal, 35 kBtu/h - 80 gal, 4.5 kW/4.5 kW -- 50 gal, 4.5 kW 

### 3