Eloma Genius T6-11 Gas Full-Size Combination Oven Performance Test

Application of ASTM Standard

Test Method F 1639- 05 SCGAT060116A

Energy Resource Center Downey, CA

February 2007

Prepared by: The Gas Company

© 2009 Southern California Gas Company. All trademarks belong to their respective owners. All rights reserved.

Disclaimer "The information and analysis contained in this report is based on data collected at the Energy Resource Center. The Gas Company has made reasonable efforts to ensure that all information is correct; however, the Gas Company makes no representation or warranty, express or implied, as to the accuracy, correctness or usefulness of any data or information in this report. Nothing contained in this report is intended to constitute a recommendation, endorsement, approval or guaranty of any product or service. The Gas Company shall not be responsible for errors or omissions in this report or for claims or damages relating to the use of this report, even if it has been advised of the possibility of such damages. All trademarks, methods, processes or other intellectual property contained in or described in this report are the property of their respective owners and the Gas Company makes no representation or warranty that their use will not infringe privately owned rights." Legal Notice “This report was prepared as a result of work sponsored by the California Public Utilities Commission (Commission). It does not necessarily represent the views of the Commission, its employees, or the State of California. The Commission, the State of California, its employees, contractors, and subcontractors make no warranty, express or implied, or assume no legal liability for the information in this report; nor does any party represent that the use of this information will not infringe upon privately owned rights. This report has not been approved or disapproved by the Commission nor has the Commission passed upon the accuracy of the information in this report."

Executive Summary

The Eloma Genius T6-11 gas-fired combination oven (Fig.1) was tested

by the Gas Company for inclusion into its cooking energy efficiency

program. Gas Company engineers tested the gas combination oven

according to the specifications of the American Society for Testing and

Materials’ (ASTM) standard test method F 1639. To be considered

energy efficient, a convection oven must achieve at least 40% efficiency

for the heavy-load cooking-energy efficiency test. The Eloma Genius

T6-11 oven passed the standards as set forth. The test results for the

Eloma Genius T6-11 are as follows: Fig.1

Table ES-1. Summary of ASTM Convection Oven Performance Results

Rated Energy Input Rate (Btu/h) 40,100 Measured Energy Input Rate (Btu/h) 42,917 Preheat Time to 340°F (min) 13.6 Preheat Energy to 340°F (Btu) 9,956 Idle Energy Rate @ 350°F (Btu/h) N/A Pilot Energy Rate (Btu/h) N/A Heavy-load cooking-energy Efficiency (%) 58.4 Production Capacity (lb/h) 54.2

The heavy-load cooking-energy efficiency test consists of cooking whole

chickens on the maximum number of chicken racks allowable by the

manufacturer (in this case, 16). As specified by the ASTM test method,

cooking-energy efficiency is a measure of how much of the energy that

an appliance consumes is actually delivered to the food product during

the cooking process. Cooking-energy efficiency is therefore defined by

the following relationship:

Appliance Energy toFood Energy toEfficiencyEnergy Cooking =

Commercial Foodservice Equipment Testing Program

Recent advances in equipment design have produced commercial

foodservice equipment that operates more efficiently, quickly, safely and

conveniently. Energy efficient commercial equipment reduces energy

consumption primarily through advanced technology and design.

The purpose of the The Gas Company’s Energy Efficiency Commercial

Foodservice Equipment Testing Program is to provide energy efficiency

measurement data for cost effectiveness modeling in order to establish

energy efficiency standards and ratings for commercial food service

equipment. This measurement data is then utilized and integrated with

typical equipment usage profiles for California utility customer

participants for the Food Service Equipment Rebate program.

ERC FOODSERVICE TEST CENTER RESULTS REPORTING SHEET COMMERCIAL COOKING EQUIPMENT TESTING PERFORMANCE OF COMBINATION OVENS SCG PROJ. NO.: W0601 FEBRUARY 12, 2006 ASTM F 1639-05 – 1

Performance of Combination Ovens RESULTS REPORTING SHEET

ASTM F 1639-05

Manufacturer ELOMA

Model GENIUS T 6-11

Serial # 775908

Date 1/22/07 – 1/23/07

Test Reference Number (Optional)

Test Oven Description

Description of operational characteristics:

Physical Dimensions

Size of oven: 29.25 H x 36.5 W x 31.5 D in.

Number of racks: 6

Space between racks: 2.00 in.

Apparatus

√ Check if testing apparatus conformed to specifications in Section 5.

Deviations:

Thermostat Calibration

As-Received:

Oven temperature control setting (°F) 351

Oven cavity temperature (°F) 342.4

As-Adjusted:

Oven temperature control setting (°F) 361

Oven cavity temperature (°F) 354.6

RESULTS REPORTING SHEET ERC FOODSERVICE TEST CENTER PERFORMANCE OF COMBINATION OVENS COMMERCIAL COOKING EQUIPMENT TESTING FEBRUARY 12, 2006 SCG PROJ. NO.: W0601 ASTM F 1639-05 – 2

Energy Input Rate

Test Voltage (V) 117.5

Gas Heating Value (Btu/ft3) 1032

Rated (Btu/h) 40,100

Measured (Btu/h) 42,917

Percent Difference between Measured and Rated (%) 7.0

Fan/Control Energy Rate (kW) 0.1362

Preheat Energy and Time

Test Voltage (V) 118.4

Gas Heating Value (Btu/ft3) 1030

Energy Consumption (Btu) 9,956

Time from °F to 350°F (min) 13.6

Idle Energy Rate

Test Voltage (V)

Gas Heating Value (Btu/ft3)

Humidity Setting Maximum (100%)

Idle Energy Rate (Btu/h)

Water Consumption Rate (gal/h)

Pilot Energy Rate

Gas Heating Value (Btu/ft3) N/A

Pilot Energy Rate (Btu/h) N/A

Cooking Energy Efficiency and Cooking Energy Rate Check if oven was set at 350°F and full combination mode (maximum humidity) for the

duration of the tests.

Alternate Cooking Program:

Tests were performed using the factory installed program of “grilled chicken.”

ERC FOODSERVICE TEST CENTER RESULTS REPORTING SHEET COMMERCIAL COOKING EQUIPMENT TESTING PERFORMANCE OF COMBINATION OVENS SCG PROJ. NO.: W0601 FEBRUARY 12, 2006 ASTM F 1639-05 – 3

Light-Load:

Test Voltage (V)

Gas Heating Value (Btu/ft3)

Cooking Energy Efficiency (%)

Cooking Energy Rate (Btu/h)

Electric Energy Rate (kW)

Cooking Time (min)

Shrinkage (%)

Water Consumption (gal/h)

Condensate Temperature Max. (°F)

Condensate Temperature Average (°F)

Heavy-Load:

Test Voltage (V) 118.0

Gas Heating Value (Btu/ft3) 1031

Cooking Energy Efficiency (%) 58.4 ± 1.17

Production Capacity (lb/h) 54.2 ± 1.93

Cooking Energy Rate (Btu/h) 32,489

Electric Energy Rate (kW) 0.1368

Cooking Time (min) 39.9

Shrinkage (%) 17.2

Water Consumption (gal/h) 0.79

Condensate Temperature Max. (°F) 119.3

Condensate Temperature Average (°F 97.8

RESULTS REPORTING SHEET ERC FOODSERVICE TEST CENTER

Preheat Curve

50

75

100

125

150

175

200

225

250

275

300

325

350

375

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

Time (min)

Tem

pera

ture

(°F)

Signatures: The undersigned have performed the above test and have verified that the results recorded were the actual results observed.

SCG’s Tester: 02/12/07 (signature) (date)

ANDRE SALDIVAR (print name)

PERFORMANCE OF COMBINATION OVENS COMMERCIAL COOKING EQUIPMENT TESTING FEBRUARY 12, 2006 SCG PROJ. NO.: W0601 ASTM F 1639-05 – 4

ERC FOODSERVICE TEST CENTER UNCERTAINTY CALCULATION PROCEDURE COMMERCIAL COOKING EQUIPMENT TESTING FOODSERVICE TESTING SCG PROJ. NO.: W0601 FEBRUARY 12, 2006 Annex – 1

Foodservice Testing UNCERTAINTY CALCULATION PROCEDURE

Annex

Make: ELOMA

Model: GENIUS T6-11

Equipment Type: Combination Oven

Test Results from Form: ASTM F 1639 – 05 (10.7)S

Results Evaluated: Cooking Energy Efficiency

A. Test results

1. Iteration 1 X1 = 58.8

2. Iteration 2 X2 = 57.1

3. Iteration 3 X3 = 59.3

4. Iteration 4 X4 =

5. Iteration 5 X5 =

6. Number of test results being evaluated: n = 3

B. Calculations

1. Xan = (1/n) * (X1 + X2 + … + Xn) Xan = 58.4

2. Sn = 2

nn BA − Sn = 0.01177

a. An = (X1)² + (X2)² + … + (Xn)² An = 1.0242

b. Bn = (1/n) * (X1 + X2 + … + Xn) ² Bn = 1.0239

3. Un= Cn * Sn Un = 0.02919

a. Cn is found in the following table: Cn = 2.48

Uncertainty Factors

Test Results, n Uncertainty Factors, Cn

3 2.48 4 1.59 5 1.24 6 1.05 7 0.92 8 0.84 9 0.77 10 0.72

UNCERTAINTY CALCULATION PROCEDURE ERC FOODSERVICE TEST CENTER

4. %Un = (Un / Xan) * 100% %Un = 5.0

C. Evaluation YES NO N/A

1. Is %Un ≤ ±10% [yes]

a. If %Un ≥ ±10% then repeat the test. Notes:

1. Expected results are shown between brackets. Comments:

Signatures: The undersigned have performed the above test and have verified that the results recorded were the actual results observed.

SCG’s Tester: 2/12/07 (signature) (date)

ANDRE SALDIVAR (print name)

FOODSERVICE TESTING COMMERCIAL COOKING EQUIPMENT TESTING FEBRUARY 12, 2006 SCG PROJ. NO.: W0601 ANNEX – 2

ERC FOODSERVICE TEST CENTER UNCERTAINTY CALCULATION PROCEDURE COMMERCIAL COOKING EQUIPMENT TESTING FOODSERVICE TESTING SCG PROJ. NO.: W0601 FEBRUARY 12, 2006 Annex – 1

Foodservice Testing UNCERTAINTY CALCULATION PROCEDURE

Annex

Make: ELOMA

Model: GENIUS T6-11

Equipment Type: Combination Oven

Test Results from Form: ASTM F 1639 – 05 (10.7)S

Results Evaluated: Production Capacity

A. Test results

1. Iteration 1 X1 = 52.1

2. Iteration 2 X2 = 54.6

3. Iteration 3 X3 = 55.9

4. Iteration 4 X4 =

5. Iteration 5 X5 =

6. Number of test results being evaluated: n = 3

B. Calculations

1. Xan = (1/n) * (X1 + X2 + … + Xn) Xan = 54.2

2. Sn = 2

nn BA − Sn = 1.932

a. An = (X1)² + (X2)² + … + (Xn)² An = 8816.3

b. Bn = (1/n) * (X1 + X2 + … + Xn) ² Bn = 8808.8

3. Un= Cn * Sn Un = 4.79

a. Cn is found in the following table: Cn = 2.48

Uncertainty Factors

Test Results, n Uncertainty Factors, Cn

3 2.48 4 1.59 5 1.24 6 1.05 7 0.92 8 0.84 9 0.77 10 0.72

UNCERTAINTY CALCULATION PROCEDURE ERC FOODSERVICE TEST CENTER

4. %Un = (Un / Xan) * 100% %Un = 8.8

C. Evaluation YES NO N/A

1. Is %Un ≤ ±10% [yes]

a. If %Un ≥ ±10% then repeat the test. Notes:

1. Expected results are shown between brackets. Comments:

Signatures: The undersigned have performed the above test and have verified that the results recorded were the actual results observed.

SCG’s Tester: 2/12/07 (signature) (date)

ANDRE SALDIVAR (print name)

FOODSERVICE TESTING COMMERCIAL COOKING EQUIPMENT TESTING FEBRUARY 12, 2006 SCG PROJ. NO.: W0601 ANNEX – 2