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<strong>Food</strong> <strong>Service</strong><br />
<strong>Technology</strong> <strong>Center</strong><br />
Miwe Roll-in e+ 1.0711-TL Double Rack Gas Oven<br />
Test Report<br />
FSTC Report # 501311124-R1<br />
Application of ASTM<br />
Standard Test Method F2093-11<br />
June 2012<br />
Prepared by:<br />
Michael Karsz<br />
Fisher-Nickel, Inc.<br />
Prepared for:<br />
Pacific Gas and Electric Company<br />
Customer Energy Efficiency Programs<br />
PO Box 770000<br />
San Francisco, California 94177<br />
Pacific Gas and Electric Company <strong>Food</strong> <strong>Service</strong> <strong>Technology</strong> <strong>Center</strong>. All rights reserved. © 2012
<strong>Food</strong> <strong>Service</strong> <strong>Technology</strong> <strong>Center</strong><br />
Appliance Test Summary Report<br />
Pacific Gas and Electric Company <strong>Food</strong> <strong>Service</strong> <strong>Technology</strong> <strong>Center</strong>. All rights reserved. © 2012<br />
The information in this report is based on data generated at the Pacific Gas and Electric Company (PG&E) <strong>Food</strong> <strong>Service</strong> <strong>Technology</strong> <strong>Center</strong> (FSTC). The FSTC Energy Efficiency for<br />
<strong>Food</strong>service Program is funded by California utility customers and administered by PG&E under the auspices of the California Public Utilities Commission (CPUC). California<br />
consumers are not obligated to purchase any additional services not funded by the program.<br />
Manufacturer MIWE Report Number 501311124-R1<br />
Model / Serial Number Roll-In e+ 1.0711-TL / 406 005 Test Date June-2012<br />
Appliance Double Rack Oven – Gas Tested By M. Karsz<br />
Purpose of Testing<br />
This testing determined the energy input rate, preheat time and energy, idle energy rate, heavy-load baking-energy<br />
efficiency and production capacity of the oven by applying the ASTM F2093-11 Standard Test Method.<br />
Energy Input Rate<br />
Rated Voltage (V) 208<br />
Rated Energy Input Rate (Btu/h) 324,000<br />
Measured Energy Input Rate (Btu/h) 321,232<br />
Difference (%) 0.9<br />
Electric Energy Rate (kW) 1.52<br />
Preheat<br />
Final Preheat Temperature (°F) 392<br />
Duration (min) 17.19<br />
Gas Energy Consumption (Btu) 89,471<br />
Electric Energy Consumption (kWh) 0.56<br />
Preheat Rate (°F/min) 18.5<br />
Idle<br />
Average Cavity Temperature (°F) 401<br />
Gas Idle Energy Rate (Btu/h) 31,274<br />
Electric Energy Rate (kW) 1.49<br />
MIWE Roll-In e+ 1.0711-TL<br />
Double Rack Oven<br />
Heavy-Load Baking-Energy Efficiency a<br />
<strong>Food</strong> Product<br />
Apple Pie<br />
Oven Temperature (°F) 400<br />
Cook Time (min) 55.82 MIWE<br />
Gas Baking Energy Rate (Btu/h) 124,880 109 Stryker Lane Bldg. #3<br />
Energy to <strong>Food</strong> (Btu/lb) 223 Hillsborough, NJ, USA 08844<br />
Energy to Oven (Btu/lb) 462 http://www.miwe.de/<br />
Electric Baking Energy Rate (kW) 1.60<br />
Baking-Energy Efficiency (%) 51.5 ± 1.9<br />
Production Capacity (lb/h) 281.9 ± 2.7<br />
a based on a minimum of three test replicates.<br />
12949 Alcosta Blvd. Suite 101, San Ramon CA 94583 P: 1.800.398.3782 F: 1.925.866.2864 www.fishnick.com Page 2 of 5
Manufacturer MIWE Report Number 501311124-R1<br />
Model / Serial Number Roll-In e+ 1.0711-TL / 406 005 Test Date June-2012<br />
Appliance Double Rack Oven – Gas Tested By M. Karsz<br />
Set Back Energy-Saving Mode<br />
Average Cavity Temperature (°F) 215<br />
Gas Idle Energy Rate (Btu/h) 7,545<br />
Electric Energy Rate (kW) 0.93<br />
Steam Performance (10s Water Injection Time)<br />
Cycle Water Consumption (gal) Runoff (gal) Steam Produced (gal)<br />
1 0.572 0.000 0.572<br />
2 0.574 0.000 0.574<br />
3 0.578 0.000 0.578<br />
4 0.578 0.000 0.578<br />
5 0.576 0.000 0.576<br />
Heavy-Load Test Data<br />
Test #1 Test #2 Test #3<br />
Measured Values<br />
Number of Pans 30 30 30<br />
Cook Time (min) 55.93 55.79 55.75<br />
Gas Energy Consumption (Btu) 115,758 114,036 118,763<br />
Electric Energy Consumption (kWh) 1.49 1.50 1.48<br />
Initial Moisture Content of Apple Pies (%) 50.7 50.7 50.7<br />
Initial Temperature of Apple Pies (°F) 0.9 2.0 0.6<br />
Final Temperature of Apple Pies (°F) 187 188 188<br />
Initial Weight of Apple Pies (lb) 261.68 262.63 262.64<br />
Final Weight of Apple Pies (lb) 252.58 253.95 253.68<br />
Weight of Sheet Pans (lb) 104.43 104.49 104.91<br />
Calculated Values<br />
Sensible Energy (Btu) 30,680 30,775 31,008<br />
Latent Fusion Energy (Btu) 19,105 19,174 19,175<br />
Latent Vaporization Energy (Btu) 8,827 8,420 8,691<br />
Total Energy to <strong>Food</strong> (Btu) 58,612 58,369 58,874<br />
Energy to <strong>Food</strong> (Btu/lb) 224 222 224<br />
Energy Consumed by Pans (Btu) 3,887 3,887 3,932<br />
Energy Consumed by the Rack Oven (Btu) 120,843 119,156 123,814<br />
Energy to Oven (Btu/lb of food cooked) 462 454 471<br />
Baking-Energy Efficiency (%) 51.7 52.2 50.7<br />
Gas Baking Energy Rate (Btu/h) 124,182 122,641 127,817<br />
Electric Baking Energy Rate (kW) 1.60 1.61 1.59<br />
Production Capacity (lb/h) 280.7 282.4 282.7<br />
12949 Alcosta Blvd. Suite 101, San Ramon CA 94583 P: 1.800.398.3782 F: 1.925.866.2864 www.fishnick.com Page 3 of 5
Manufacturer MIWE Report Number 501311124-R1<br />
Model / Serial Number Roll-In e+ 1.0711-TL / 406 005 Test Date June-2012<br />
Appliance Double Rack Oven – Gas Tested By M. Karsz<br />
Sheet Cake Browning Uniformity<br />
<strong>Food</strong> Product<br />
White Cake Mix<br />
Bake Time (min) 25.28<br />
Top Pans<br />
Middle Pans<br />
Bottom Pans<br />
12949 Alcosta Blvd. Suite 101, San Ramon CA 94583 P: 1.800.398.3782 F: 1.925.866.2864 www.fishnick.com Page 4 of 5
Manufacturer MIWE Report Number 501311124-R1<br />
Model / Serial Number Roll-In e+ 1.0711-TL / 406 005 Test Date June-2012<br />
Appliance Double Rack Oven – Gas Tested By M. Karsz<br />
Energy Cost Model<br />
The test results can be used to estimate the annual energy consumption for the double rack oven in a real-world operation. A<br />
simple cost model was developed to calculate the relationship between the various cost components (e.g., preheat, idle and<br />
baking costs) and the annual operating cost using the ASTM test data. The cost model incorporates the set back mode during<br />
idle periods, which is the normal operating state for this double rack oven.<br />
Daily Oven Operation Assumptions<br />
Total Operating Time per Day (h) 12<br />
Operating Time in Set Back Mode per Day (h) 3<br />
Operating Days per Year (d) 365<br />
Number of Preheats per Day 1<br />
Total Amount of <strong>Food</strong> Baked per Day (lb) 1,200<br />
Based on the assumptions above, total daily energy consumption was determined by adding the daily preheat energy consumed,<br />
the daily idle and set back energy consumed, and the daily baking energy consumed. It is estimated that the MIWE RI e+<br />
1.0711-TL Double Rack Oven would consume 2,858 therms of gas and 6,132 kWh of electricity annually. Using a rate of<br />
$1.00/therm and $0.10/kWh, the estimated operational cost of the MIWE RI e+ 1.0711-TL Double Rack Oven is $3,471 per year.<br />
Estimated Double Rack Oven Energy Consumption and Cost<br />
Gas (Btu) Electric (kWh)<br />
Daily Preheat Energy 89,471 0.56<br />
Daily Idle Energy 139,378 6.64<br />
Daily Set Back Energy 22,635 2.79<br />
Daily Baking Energy 531,593 6.81<br />
Annual Gas Consumption (therms/yr) a 2,858 –<br />
Annual Electric Consumption (kWh/yr) – 6,132<br />
Total Annual Cost ($/year) b $3,471<br />
a One therm = 100,000 Btu<br />
b Oven energy costs are based on $1.00/therm and $0.10/kWh.<br />
Disclaimer<br />
Reproduction or distribution of the whole or any part of the contents of this document without written permission of FSTC is prohibited. Neither Fisher-Nickel, Inc., PG&E nor any of their<br />
employees, or the FSTC, make any warranty, expressed or implied, or assume any legal liability of responsibility for the accuracy, completeness, or usefulness of any data, information,<br />
method, product or process disclosed in this document, or represents that its use will not infringe any privately-owned rights, including but not limited to, patents, trademarks, or<br />
copyrights. Reference to specific products or manufacturers is not an endorsement of that product or manufacturer by Fisher-Nickel, Inc., the FSTC, or PG&E. In no event will Fisher-<br />
Nickel, Inc. or PG&E be liable for any special, incidental, consequential, indirect, or similar damages, including but not limited to lost profits, lost market share, lost savings, lost data,<br />
increased cost of production, or any other damages arising out of the use of the data or the interpretation of the data presented in this report.<br />
Retention of this consulting firm by PG&E to develop this report does not constitute endorsement by PG&E for any work performed other than that specified in the scope of this project.<br />
Legal Notice<br />
This report was prepared as a result of work sponsored by the California Public Utilities Commission (CPUC). It does not necessarily represent the views of the CPUC, its employees, or<br />
the State of California. The CPUC, the State of California, its employees, contractors, and subcontractors make no warranty, express or implied, and assume no legal liability for the<br />
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<br />
the CPUC nor has the CPUC passed upon the accuracy or adequacy of the information in this report.<br />
12949 Alcosta Blvd. Suite 101, San Ramon CA 94583 P: 1.800.398.3782 F: 1.925.866.2864 www.fishnick.com Page 5 of 5
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