compact mef value by HC12093023740

VIEWS: 1 PAGES: 14

									Water Volume, tub capacity

          Basket Capacity              1.46 cu.ft.

          water fill fraction           0.9 fraction
          Basket Diameter                17 inches     1.42 feet
          Annulus Gap                  0.75 inches     0.06 feet

          Basket Height                0.83 feet
          Tub Diameter                 1.54 feet

          Water Height                0.75 feet
          Gallons Basket              9.83
          Gallons Annulus             0.65
          Total Gallons              10.48


          constrain outer size of washer
                                                           7de2ea33-c5dc-46c8-a5e1-7ab9a18e0a60.xls                         CFR 1-1-94


Appendix J                     Inputs are indicated by :
CFR 1-1-94                     Outputs are indicated by:
This spreadsheet will ignore suds saving option and non-automatic washers.

1) Enter washer drum capacity                       1.460 cu.ft.

2) Enter electrical energy                           0.27 kWh/cycle
(max. fill, normal cycle,

3) For the normal test cycle record:
                                                                              Hot Water Hot Water
   Wash Water          Rinse      Test Load      Water                         used in   used in
     Temp.             Temp.      & Fill Level   Hot (H)                        Wash      Rinse
       F                 F                        gals.                         gals.     gals.
      Hot              Warm           Max.        22.5                            15       7.5
                                      Min.        11.3                           7.5       3.8
        Hot             Cold          Max.        15.0                          15.0       0.0
                                      Min.         7.5                           7.5       0.0
       Warm             Warm          Max.        15.0                           7.5       7.5
                                      Min.         7.5                           3.8       3.8
       Warm             Cold          Max.         7.5                           7.5       0.0
                                      Min.         3.8                           3.8       0.0
* hottest available at max. fill, normal cycle

Select Appropriate TUF and enter into table at right.
 Temp. Selection      5          4            4                    4             3          3          3
                               Alt. I      Alt. II              Alt. III        Alt. I    Alt. II    Alt. III
    hot/warm         0.18      0.18         0.18                   0            0.30        0          0         H/W
     hot/cold        0.12      0.12         0.12                 0.12            0        0.30        0.30       H/C
   warm/warm         0.30        0          0.30                 0.18            0          0         0.55       W/W
    warm/cold        0.25      0.55         0.40                 0.55           0.55      0.55         0         W/C
    cold/cold        0.15      0.15           0                  0.15           0.15      0.15        0.15       C/C

Sec. 4.1             Per-cycle temperature-weighted hot water consumption for max. and min. water fill levels

           Vmax =         12.23          9.98       13.35              8.63       10.88       8.63      12.75 gals./cycle
           Vmin =          6.11          4.99        6.68              4.31        5.44       4.31       6.38 gals./cycle



                                                                               Page 2
                                                            7de2ea33-c5dc-46c8-a5e1-7ab9a18e0a60.xls                     CFR 1-1-94



Sec. 4.2              Total per-cycle hot water energy consumption for max. & min. water fill levels

E = V x T x K x MF
            where:
                      T=                     90   F
                      K=                0.0024    kWh/(gal, F)
                      MF =                 0.94   for top loader sensor filled
                      MF =                 1.00   for top loader time filled
                      MF =                 1.00   for all front loader washers
                      Select MF            0.94

Emax =                      2.48          2.03          2.71             1.75       2.21    1.75        2.59 kWh/cycle
Emin =                      1.24          1.01          1.36             0.88       1.10    0.88        1.29 kWh/cycle

Sec. 4.3              Total weighted per-cycle hot water energy consumption

ET = (Emax x Fmax) + (Emin x Fmin)
            where:
                         Fmax = 0.72
                          Fmin = 0.28

               ET =         2.13          1.74          2.33             1.51       1.90    1.51        2.23 kWh/cycle

Sec. 4.4              Per-cycle machine electrical energy consumption

              ME =          0.27          0.27          0.27             0.27       0.27    0.27        0.27 kWh/cycle

Sec. 4.5              Per-cycle water energy consumption using gas-heated or oil-heated water

ETG = ET x 1/e x 3412 Btu/KWh
            where: e =nominal gas or oil waer heater efficiency =                 75.0%

             ETG =         9711          7924         10605             6852       8639    6852        10128 BTU/cycle

Sec. 4.6              Total per-cycle energy consumption when electrically heated water is used.


                                                                                 Page 3
                                                        7de2ea33-c5dc-46c8-a5e1-7ab9a18e0a60.xls                         CFR 1-1-94


ETE = ET + ME

            ETE =          2.40        2.01       2.60              1.78      2.17       1.78        2.50 kWh/cycle




 Temp. Selection       5            4           4              4            3           3         3
                                   Alt. I     Alt. II        Alt. III      Alt. I     Alt. II   Alt. III
                                                                                     No Warm
Energy Factor = C / ETE                                                               Rinse

                EF =       0.61        0.73       0.56              0.82      0.67       0.82        0.58 cu. ft./ kWh


MEF = C / ETE + DE              (RMC transfered from App. J1 sheet)
          MEF =            0.45       0.52        0.43          0.56          0.49       0.56        0.44 cu.ft./kWh




                                                                           Page 4
                                                                       Test_pro.xls


Appendix J1                    Inputs are indicated by :
Long Version                   Outputs are indicated by:


1) Enter washer drum capacity                   1.460 cu.ft.      (sec. 3.1.5)

2) Water Fill Control          (Table 2.8)                        (sec. 3.2.3.1 if both adaptive and alt. manual are available --
                                                                  test both ways and use avg. in sec. 4))
                    A) Manual                                     (sec. 3.2.3.3)
                    Enter Test Load Size: (Table 5.1)
                               Max.             6.40 lbs.
                               Min.             3.00 lbs.

                    B) Adaptive                                   (sec. 3.2.3.2)
                    Enter Test Load Size: (Table 5.1)
                               Max.             6.40 lbs.         (same as manual)
                               Avg.             4.70 lbs.
                               Min.             3.00 lbs.         (same as manual)

3) Wash Temperature Selections                                     (Table 3.2)
                Max. water temp. =                135 F            (sec. 3.2.1.3 determine if warm wash water temp. is uniformly distributed)
                                                                                                                Yes or No (not used in calculations)
If max. wash temp. available is greater than 135 F enter data for section 3.3                                        N      (implies internal heating)
                   If greater than 3 temp. selections, enter data for sections 3.4, 3.5, and 3.6                     N
                   If less than or equal to 3 temp. selections, enter data for sections 3.5, and 3.6                 N

If max. wash temp. available is less than or equal to 135 F and --                                                     Y
                   If 2 or more temp. selections, enter data for section 3.4                                           Y
                                If more than 2 temps. then enter data for section 3.5 and 3.6                          Y
                   If less than 2 temp. selections, enter data for section 3.6                                         N

If warm rinse enter data for section 3.7                                                                               N




                                                                          Page 5
                                                                          Test_pro.xls




For the energy test cycle record:          ENTER IN 0 IF VARIABLE DOESN'T APPLY
       Water                    Test Load Water Consumption Electrical
      Temp.            Rinse & Fill Level Hot (H)    Cold (C) Energy (E)
         F                                   gals.     gals.    kWh
      sec 3.3           Cold      Max.(x)      0          0       0
 Extra Hot Wash         Cold    Avg. (a)**     0          0       0      For Adaptive Fill
         m              Cold      Min. (n)     0          0       0
      sec 3.4           Cold       Max.      15.0       15.0     0.27
     Hot Wash           Cold       Avg.**    11.3       11.3     0.27    For Adaptive Fill
         h              Cold        Min.      7.5        7.5     0.27
      sec 3.5           Cold       Max.       7.5       22.5     0.27
  Warm Wash*            Cold       Avg.**     5.6       16.9     0.27    For Adaptive Fill
         w              Cold        Min.      3.8       11.3     0.27
      sec 3.6           Cold       Max.       0.0       30.0     0.27
    Cold Wash           Cold       Avg.**     0.0       22.5     0.27    For Adaptive Fill
         c              Cold        Min.      0.0       15.0     0.27
                                            Hot (R)             ER ***
      sec 3.7         (hottest    Max. (x)    7.5                0.00
   Warm Rinse          rinse      Avg. (a)    5.6                0.00    For Adaptive Fill
         r            setting)    Min. (n)    3.8                0.00

* Calc. or avg. of all warms if non-uniformly distributed. (see sec. 3.5.2 )
** If required -- I.e. for adaptive fill
*** To heat rinse water only (kWh)




                                                                               Page 6
                                                                          Test_pro.xls


4) Remaining Moisture Content (RMC)                 (section 3.8)
Use maximum test load
RMCmax = ((WCmax - WImax) / WImax) X 100%
                  If a warm rinse calculate RMC after both a cold and warm rinse cycle and
                  calulate RMC using the equation shown below:
RMCmax = RMCcold x (1-TUFr) + RMCwarm x (TUFr)
                      where TUFr is the temperature use factor for warm rinse (Table 4.1.1) = 0.27

                      If more than one spin option then use (in energy test cycle):
                      RMC = 0.75 x RMC max extraction + 0.25 x RMCmin extraction

                        Max          Min.
                RMC     0.620        0.620

           RMC =           0.620

5) Calcualtion of Derived Results from Test Measurements

Max Wash                          135 F or less             greater than 135 F
Temp Selections
No. Wash Temp             1                2       >2          3         >3             Select appropriate TUFs
Selections                                                                                 From Table at Left
TUFm (extra hot)          0            0           0         0.14       0.05                       0
TUF h (hot)               0           0.63        0.14        0         0.09                      0.14
TUFw (warm)               0            0          0.49       0.49       0.49                      0.49
TUFc (cold)               1           0.37        0.37       0.37       0.37                      0.37
TUFr (warm rinse)        0.27         0.27        0.27       0.27       0.27                      0.27

Section 4.1.1         Per-cycle temperature-weighted hot water consumption

Vh = (Hm x TUFm) + (Hh x TUFh) + (Hw x TUFw) + (Hc x TUFc) + (R x TUFr)

          a) Vhx =            7.80 gals.       hot water consumption for maximum water fill
         b) Vha =             5.85 gals.       hot water consumption for average water fill (Adaptive Fill)
          c) Vhm =            3.90 gals.       hot water consumption for minimum water fill




                                                                               Page 7
                                                                               Test_pro.xls




Section 4.1.2            Total per-cycle hot water energy consumption for all max., avg., min., water fill levels tested.

HE = [Vh x T x K] = Total Energy
                    where:
                           T=        75 F
                           K=    0.0024 kWh/gal,F

        a) HE max =           1.404 kWh/cycle at max. water fill level
       b) HE avg =            1.053 kWh/cycle at avg. water fill level    (Adaptive Fill)
        c) HE min =           0.702 kWh/cycle at min. water fill level


Section 4.1.3            Total weighted per-cycle hot water energy consumption


Water Fill Control        Manual      Adaptive
     F max                 0.72         0.12
       F avg                 0          0.74
        F min               0.28        0.14

HE T = [HE max x F max] + [HE avg x F avg] + [HE min x F min]
                                                                          Adaptive Fill
                HE T =           1.21 kWh/cycle                  HE T =        1.05 kWh/cycle

Section 4.1.4       Total per-cycle hot water energy consumption using gas-heated or oil-heated water
                                                                 Adaptive Fill
            HE TG =       5493 Btu per cycle             HE TG =      4759 Btu per cycle

                         Efficiency of water heater =        75.0%




                                                                                 Page 8
                                                                             Test_pro.xls




Section 4.1.5          Per-cycle machine electrical energy consumption for all max., avg., and min. test load sizes

ME = [Em x TUFm] + [Eh x TUFh] + [Ew x TUFw] + [Ec x TUFc] + [ER x TUFr]

         a) ME max =         0.27 kWh/cycle
         b) ME avg =         0.27 kWh/cycle
         c) ME min =         0.27 kWh/cycle


Section 4.1.6          Total weighted per-cycle machine electrical energy consumption

ME T = [ME max x F max] + [ME avg x F avg] + [ME min x F min]
                                                                         Adaptive Fill
              ME T =         0.27 kWh/cycle                     ME T =        0.27 kWh/cycle


Section 4.1.7          Total per-cycle energy consumption when electrically heated water is used

E TE = HE T + ME T
                                                                         Adaptive Fill
              E TE =         1.48 kWh/cycle                     E TE =        1.32 kWh/cycle


Section 4.2            Water consumption of clothes washers
                       (not required for compliance)
Q = Hc + Cc
                                                                         Adaptive Fill
Qmax =                      30.00 gals.                   Qmax =             30.00 gals.
Qavg =                      22.50 gals.                   Qavg =             22.50 gals.
Qmin =                      15.00 gals.                   Qmin =             15.00 gals.


Total Weighted per-cycle water consumption



                                                                                Page 9
                                                                         Test_pro.xls


Q T = [Qmax x Fmax] + [Qavg x Favg] + [Qmin x Fmin]
                                                                    Adaptive Fill
                QT=        25.80 gals./cycle                  QT=       22.35 gals./cycle

Section 4.2.3          Water consumption factor

WCF = Q T / C
                                                                    Adaptive Fill
              WCF =          17.7 gals./cu.ft.              WCF =        15.3 gals./cu.ft.


Section 4.3            Per-cycle energy consumption for removal of moisture from test load

DE = (LAF) X (Maximum test load weight) x (RMC-4%) x (DEF) x (DUF)
           where:
                  LAF                         0.52
                  Max.Test load weight        6.40 lbs.
                  RMC                         0.62 %
                  DEF                          0.5 kWh/lb
                  DUF                         0.84

                DE =         0.81 kWh/cycle


Section 4.4            Modified Energy Factor

MEF = C / (ETE + DE)
                                                                    Adaptive Fill
              MEF =          0.64 cu. ft. per kWH/cycle     MEF =        0.69 cu. ft. per kWH/cycle


EF (J1) = C / ETE                                                   Adaptive Fill
         EF (J1) =           0.99 cu. ft. per kWH/cycle   EF (J1) =      1.11 cu. ft. per kWH/cycle




                                                                           Page 10
Comparison Example #                               Input Value                                   comparison A spreadsheet by Peter Biermayer
                                                   Calculation
Assumptions:                                                                                                                             ENTER
Washer Drum Capacity:                     1.46       cu.ft.                                        Value for warm rinse for App. J1          7.5            gals, hot
Max. test cloth load (J1)                  6.4       Lbs       from table 5.1                                 If no warm rinse enter          0
Mechanical Energy                         0.27       kWh/cycle                                                    If warm rinse enter       7.50
RMC max. extraction                       0.62       fraction
RMC min. extraction                       0.62       fraction
                                                                                                                                         (App. J1 only)
Max. Fill Capacity:                        15        gals.                                         Adaptive Fill Ratio                       0.75     fraction
                                                                                                   (adaptive fill gals./ max. fill gallons)
Ratio of: Min. fill / Max. fill            0.5
Fraction Hot in Warm                       0.5                                                     Rinse / Wash ratio           1.0
Percent wash water                         50        %
Percent rinse water                        50        %
                                                                                                                No Warm
        Parameter                           J              J              J              J             J         Rinse          J              J1                 J1
      Temp. Selections                      5              4              4              4             3            3           3            135 F              135 F
         Options                                          Alt. I        Alt. II       Alt. III        Alt. I     Alt. II      Alt. III         >2                 >2
           RMC                          62.0%            62.0%         62.0%          62.0%          62.0%       62.0%        62.0%          62.0%              62.0%    percent
        Hot Water                        12.2             10.0          13.4            8.6           10.9         8.6         12.8                               7.8    max. gals./cycle *
            EF                           0.61             0.73          0.56           0.82           0.67        0.82         0.58           1.11               0.99    cu. ft./ kWh
           MEF                           0.45             0.52          0.43           0.56           0.49        0.56         0.44           0.69               0.64    cu. ft./ kWh
                                         H/W              H/W           H/W                           H/W                                  adaptive
                                         H/C              H/C           H/C           H/C                          H/C        H.C         fill only **
                                         W/W                            W/W           W/W                                     W/W           -19.0%             -28.0%    Savings over baseline
                                         W/C              W/C           W/C           W/C                 W/C  W/C
                                         C/C              C/C                         C/C                 C/C  C/C        C/C            Baseline = ***          0.817
                                                                                    common                   common
                                                                                                   Water Consumption Factor                    15.3              17.7

* (difference due to different TUF's; weighting of temperature selections)                                                               V-axis app. J doesn't require a test load
** If there is an adaptive fill and manual fill option, average the results between the two MEF's.                                       if it is not adaptive fill
*** AHAM determined MEF baseline = 0.817 (corresponding to a EF of 1.18)


Rinse / wash ratio is the gallons of rinse water used per gallon of wash water
For now assumes that this ratio is constant for Max. and Min. fill levels.


Fraction hot in warm is the fraction of hot water mixed with cold water to achieve
the warm water inlet temperature.
E.g., a 0.4 fraction means warm water is achieved by mixing 40% hot water with 60% cold water.


Adaptive Fill Ratio is the gallons of fill is adaptive fill control were used divided by the max. fill.
9/30/2012                                                               7de2ea33-c5dc-46c8-a5e1-7ab9a18e0a60.xls                                                                              11
                                      comparison




max. gals./cycle *
cu. ft./ kWh
cu. ft./ kWh


Savings over baseline




           9/30/2012    7de2ea33-c5dc-46c8-a5e1-7ab9a18e0a60.xls   12
From Table 5.1 of Appendix J1 Test Procedure

Cu. Ft. Min. Load Max. Load Avg. Load
 1.4      3.00      5.90      4.45
 1.5      3.00      6.40      4.70
 1.6      3.00      6.80      4.90
 1.7      3.00      7.20      5.10
 1.8      3.00      7.60      5.30
 1.9      3.00      8.00      5.50
 2.0      3.00      8.40      5.70
 2.1      3.00      8.80      5.90
 2.2      3.00      9.20      6.10
 2.3      3.00      9.60      6.30
 2.4      3.00     10.00      6.50
 2.5      3.00     10.50      6.75
 2.6      3.00     10.90      6.95
 2.7      3.00     11.30      7.15
 2.8      3.00     11.70      7.35
 2.9      3.00     12.10      7.55
 3.0      3.00     12.50      7.75
 3.1      3.00     12.90      7.95
 3.2      3.00     13.30      8.15
 3.3      3.00     13.70      8.35
 3.4      3.00     14.10      8.55


For cu. Ft. from the volume shown to less than the next highest volume
For RMC the test; the load is the maximum load
                                                                J1 Test Loads


                            16



                            14



                            12
Pounds of Test Cloth Load




                            10

                                                                                                        Max. load
                             8                                                                          Average Load
                                                                                                        Min. Load


                             6



                             4



                             2



                             0
                                 0.0   0.5   1.0   1.5           2.0            2.5   3.0   3.5   4.0
                                                         Cu. ft Basket Volume

								
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