laboratory test report for fujitsu 12rls and mitsubishi ... · pdf filelaboratory test report...
Post on 08-Feb-2018
220 Views
Preview:
TRANSCRIPT
Laboratory Test Report for Fujitsu 12RLS and Mitsubishi FE12NA Mini-Split Heat Pumps Jon Winkler, Ph.D.
September 2011
NOTICE
This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States government or any agency thereof.
Available electronically at http://www.osti.gov/bridge
Available for a processing fee to U.S. Department of Energy and its contractors, in paper, from:
U.S. Department of Energy Office of Scientific and Technical Information
P.O. Box 62 Oak Ridge, TN 37831-0062
phone: 865.576.8401 fax: 865.576.5728
email: mailto:reports@adonis.osti.gov
Available for sale to the public, in paper, from: U.S. Department of Commerce
National Technical Information Service 5285 Port Royal Road Springfield, VA 22161 phone: 800.553.6847
fax: 703.605.6900 email: orders@ntis.fedworld.gov
online ordering: http://www.ntis.gov/ordering.htm
Printed on paper containing at least 50% wastepaper, including 20% postconsumer waste
http://www.osti.gov/bridgemailto:reports@adonis.osti.govmailto:orders@ntis.fedworld.govhttp://www.ntis.gov/ordering.htm
iii
Laboratory Test Report for Fujitsu 12RLS and Mitsubishi FE12NA Mini-Split Heat Pumps
Prepared for:
Building America
Building Technologies Program
Office of Energy Efficiency and Renewable Energy
U.S. Department of Energy
Prepared by:
Jon Winkler
National Renewable Energy Laboratory
1617 Cole Boulevard
Golden, CO 80401-3393
September 2011
iv
[This page left blank]
v
Contents List of Figures ............................................................................................................................................ vi
List of Tables ............................................................................................................................................. vii
Definitions ................................................................................................................................................. viii
Executive Summary and Acknowledgments............................................................................................ 1
1 Project Overview................................................................................................................................... 2
2 Test Description .................................................................................................................................... 4
2.1 Experimental Test Facility ...................................................................................................4
2.2 Measurements ......................................................................................................................4
2.3 Heating Mode Tests .............................................................................................................5
2.4 Cooling Mode Tests .............................................................................................................6 3 Airflow Measurements ......................................................................................................................... 7
4 Heating Test Results ............................................................................................................................ 8
4.1 Steady State Fujitsu 12RLS ..............................................................................................8
4.2 Steady State Mitsubishi FE12NA ...................................................................................11
4.3 Defrost Cycle .....................................................................................................................15
Cycling Tests ...........................................................................................................................16 5 Cooling Test Results .......................................................................................................................... 17
5.1 Steady State Fujitsu 12RLS ............................................................................................17
5.2 Steady State Mitsubishi FE12NA ...................................................................................20
5.3 Cycling Tests .....................................................................................................................23 6 Conclusions ........................................................................................................................................ 24
References ................................................................................................................................................. 25
Appendix AMini-Split Heat Pump Laboratory Test Results ................................................................ 26
vi
List of Figures Figure 1. Instrumented outdoor unit (left) and instrumented indoor unit (right) covered by
insulated discharge plenum ...................................................................................................... 4
Figure 2. Experimental test code description .......................................................................................... 6
Figure 3. Fujitsu 12RLS steady-state heating capacities (70F return temperature) ........................... 8
Figure 4. Fujitsu 12RLS maximum steady-state heating capacity compared to manufacturer-reported data (70F return temperature) .................................................................................. 9
Figure 5. Fujitsu 12RLS steady-state heating COP (70F return temperature) ................................... 10
Figure 6. Fujitsu 12RLS heating COP compared to manufacturer-reported data (70F return temperature) .............................................................................................................................. 11
Figure 7. Mitsubishi FE12NA steady-state heating capacities (70F return temperature) ................ 12
Figure 8. Mitsubishi FE12NA maximum steady-state heating capacity compared to manufacturer-reported data (70F return temperature) ................................................................................ 13
Figure 9. Mitsubishi FE12NA steady-state heating COP (70F return temperature) .......................... 14
Figure 10. Mitsubishi FE12NA heating COP compared to manufacturer-reported data (70F return temperature) .............................................................................................................................. 14
Figure 11. Fujitsu 12LRS outdoor coil immediately prior to defrost operation (left) and outdoor coil immediately following defrost operation (right) .................................................................... 15
Figure 12. Fujitsu 12RLS steady-state total cooling capacity (80F DB, 67F WB return condition) 17
Figure 13. Fujitsu 12RLS maximum steady-state total cooling capacity compared to manufacturer-reported data (80F DB, 67F WB return condition) .............................................................. 18
Figure 14. Fujitsu 12RLS steady-state cooling COP (80F DB, 67F WB return condition) .............. 19
Figure 15. Fujitsu 12RLS steady-state cooling COP compared to manufacturer-reported data (80F DB, 67F WB return condition) ................................................................................................ 19
Figure 16. Mitsubishi FE12NA steady-state total cooling capacity (80F DB, 67F WB return condition) ................................................................................................................................... 20
Figure 17. Mitsubishi FE12NA maximum steady-state total cooling capacity compared to manufacturer-reported data (80F DB, 67F WB return condition) ...................................... 21
Figure 18. Mitsubishi FE12NA steady-state cooling COP (80F DB, 67F WB return condition) ...... 22
Figure 19. Mitsubishi FE12NA steady-state cooling COP compared to manufacturer-reported data (80F DB, 67F WB return condition) ...................................................................................... 22
vii
List of Tables Table 1. Comparison of Manufacturer Reported Data ............................................................................. 3
Table 2. Experimental Indoor Fan Performance Compared to Manufacturer Reported Values ......... 7
Table 3. Defrost Test Results ................................................................................................................... 16
Table 4. Cycling Test Results .................................................................................................................. 16
Table 5. Fujitsu 12RLS Steady-State Heating Test Results .......................
top related