Lainox MG102T Gas Full-Size Combination Oven Performance Test

Transcription

1 Lainox MG102T Gas Full-Size Combination Oven Performance Test Application of ASTM Standard Test Method F SCGAT070129A Energy Resource Center Downey, CA February 2006 Prepared by: The Gas Company 2009 Southern California Gas Company. All trademarks belong to their respective owners. All rights reserved.

2 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."

3 Executive Summary The Lainox MG 102T 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 To be considered energy efficient, a convection oven must achieve at least 40% efficiency for the heavy-load cooking-energy efficiency test. The Lainox MG 102T oven passed the standards as set forth. The test results for the Lainox MG 102T are as follows: Table ES-1. Summary of ASTM Convection Oven Performance Results Rated Energy Input Rate (Btu/h) 92,500 Measured Energy Input Rate (Btu/h) 87,538 Preheat Time to 340 F (min) 10.9 Preheat Energy to 340 F (Btu) 14,808 Idle Energy 350 F (Btu/h) 80,813 Pilot Energy Rate (Btu/h) N/A Heavy-load cooking-energy Efficiency (%) 52.8 Production Capacity (lb/h) Fig.1 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, 48). 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: Cooking Energy Efficiency = Energy tofood Energy toappliance

4 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.

5 Performance of Combination Ovens RESULTS REPORTING SHEET ASTM F Manufacturer LAINOX Model MG102T Serial # LA Date 1/30/07 2/2/07 Test Reference Number (Optional) Test Oven Description Description of operational characteristics: Physical Dimensions Size of oven: 43.0 H x 46.0 W x 35.5 D in. Number of racks: 10 Space between racks: 2.75 in. Apparatus Check if testing apparatus conformed to specifications in Section 5. Deviations: Thermostat Calibration As-Received: Oven temperature control setting ( F) 350 Oven cavity temperature ( F) As-Adjusted: Oven temperature control setting ( F) 330 Oven cavity temperature ( F) RESULTS REPORTING SHEET COMMERCIAL COOKING EQUIPMENT TESTING PERFORMANCE OF COMBINATION OVENS SCG PROJ. NO.: W0601 FEBRUARY 14, 2007 ASTM F

6 Energy Input Rate Test Voltage (V) Gas Heating Value (Btu/ft 3 ) 1031 Rated (Btu/h) 92,500 Measured (Btu/h) 87,538 Percent Difference between Measured and Rated (%) 5.4 Fan/Control Energy Rate (kw) Preheat Energy and Time Test Voltage (V) Gas Heating Value (Btu/ft 3 ) 1033 Energy Consumption (Btu) 14,808 Time from F to 350 F (min) 10.9 Idle Energy Rate Test Voltage (V) Gas Heating Value (Btu/ft 3 ) 1031 Humidity Setting Maximum (100%) Idle Energy Rate (Btu/h) 80,813 Water Consumption Rate (gal/h) Pilot Energy Rate Gas Heating Value (Btu/ft 3 ) Pilot Energy Rate (Btu/h) N/A 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 roast chicken. RESULTS REPORTING SHEET PERFORMANCE OF COMBINATION OVENS FEBUARY 14, 2007 ASTM F COMMERCIAL COOKING EQUIPMENT TESTING SCG PROJ. NO.: W0601

7 Light-Load: Test Voltage (V) Gas Heating Value (Btu/ft 3 ) 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) Gas Heating Value (Btu/ft 3 ) 1035 Cooking Energy Efficiency (%) 52.8 ± 1.25 Production Capacity (lb/h) ± 3.30 Cooking Energy Rate (Btu/h) 78,573 Electric Energy Rate (kw) 23.8 Cooking Time (min) 58.0 Shrinkage (%) 17.4 Water Consumption (gal/h) 17.5 Condensate Temperature Max. ( F) Condensate Temperature Average ( F RESULTS REPORTING SHEET COMMERCIAL COOKING EQUIPMENT TESTING PERFORMANCE OF COMBINATION OVENS SCG PROJ. NO.: W0601 FEBRUARY 14, 2007 ASTM F

8 Temperature ( F) Preheat Curve Time (min) Signatures: The undersigned have performed the above test and have verified that the results recorded were the actual results observed. SCG s Tester: 2/14/07 (signature) (date) ANDRE SALDIVAR (print name) RESULTS REPORTING SHEET PERFORMANCE OF COMBINATION OVENS FEBUARY 14, 2007 ASTM F COMMERCIAL COOKING EQUIPMENT TESTING SCG PROJ. NO.: W0601

9 Foodservice Testing UNCERTAINTY CALCULATION PROCEDURE Annex Make: Model: Equipment Type: Test Results from Form: Results Evaluated: LAINOX MG102T Combination Oven ASTM F (10.7)S Cooking Energy Efficiency A. Test results 1. Iteration 1 X 1 = Iteration 2 X 2 = Iteration 3 X 3 = Iteration 4 X 4 = 5. Iteration 5 X 5 = 6. Number of test results being evaluated: n = 3 B. Calculations 1. Xa n = (1/n) * (X 1 + X X n ) Xa n = 52.8 An B 2. S n = n S n = a. A n = (X 1 )² + (X 2 )² + + (X n )² A n = b. B n = (1/n) * (X 1 + X X n ) ² B n = U n = C n * S n U n = a. C n is found in the following table: C n = 2.48 Uncertainty Factors Test Results, n Uncertainty Factors, C n UNCERTAINTY CALCULATION PROCEDURE COMMERCIAL COOKING EQUIPMENT TESTING FOODSERVICE TESTING SCG PROJ. NO.: W0601 FEBRUARY 14, 2006 Annex 1

10 4. %U n = (U n / Xa n ) * 100% %U n = 5.9 C. Evaluation 1. Is %U n ±10% [yes] a. If %U n ±10% then repeat the test. YES NO N/A 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: 2/14/07 (signature) (date) ANDRE SALDIVAR (print name) UNCERTAINTY CALCULATION PROCEDURE FOODSERVICE TESTING FEBRUARY 14, 2006 ANNEX 2 COMMERCIAL COOKING EQUIPMENT TESTING SCG PROJ. NO.: W0601

11 Foodservice Testing UNCERTAINTY CALCULATION PROCEDURE Annex Make: Model: Equipment Type: Test Results from Form: Results Evaluated: LAINOX MG102T Combination Oven ASTM F (10.7)S Production Capacity A. Test results 1. Iteration 1 X 1 = Iteration 2 X 2 = Iteration 3 X 3 = Iteration 4 X 4 = 5. Iteration 5 X 5 = 6. Number of test results being evaluated: n = 3 B. Calculations 1. Xa n = (1/n) * (X 1 + X X n ) Xa n = An B 2. S n = n S n = a. A n = (X 1 )² + (X 2 )² + + (X n )² A n = 37,598.2 b. B n = (1/n) * (X 1 + X X n ) ² B n = 37, U n = C n * S n U n = a. C n is found in the following table: C n = 2.48 Uncertainty Factors Test Results, n Uncertainty Factors, C n UNCERTAINTY CALCULATION PROCEDURE COMMERCIAL COOKING EQUIPMENT TESTING FOODSERVICE TESTING SCG PROJ. NO.: W0601 FEBRUARY 14, 2006 Annex 1

12 4. %U n = (U n / Xa n ) * 100% %U n = 7.3 C. Evaluation 1. Is %U n ±10% [yes] a. If %U n ±10% then repeat the test. YES NO N/A 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: 2/14/07 (signature) (date) ANDRE SALDIVAR (print name) UNCERTAINTY CALCULATION PROCEDURE FOODSERVICE TESTING FEBRUARY 14, 2006 ANNEX 2 COMMERCIAL COOKING EQUIPMENT TESTING SCG PROJ. NO.: W0601