Toshiba SMMS vs LG MULTI V Plus II
Toshiba S-MMS vs LG MULTI V Plus II LG Electronics Inc. LGEHQ CAC Team Copyright ⓒ 2008 All rights reserved LG Electronics Inc.
1. Compressor comparison Inverter Scroll compressor is the best solution for a commercial building. Reciprocating Compressor Rotary Compressor Scroll Compressor Strong point Low cost Middle cost, Compressing part is simple Liquid handling capacity Low vibration & noise, high capacity Weak point High Vibration, noise Less liquid handling capacity Low reliability (spring loaded vane) High cost Normal Capacity Low capacity (~1 HP) Middle capacity (1~5 HP) High capacity (3~10 HP) use Refrigerator, WRAC PAC, RAC etc. Multi, Commercial A/C Copyright ⓒ 2008 All rights reserved LG Electronics Inc.
2. Power consumption comparison ■ Design condition of HCL COMNET SYSTEMS & SERVICES LTD - Total capacity of system : 560 Hp (48 Hp * 11 EA / 32 Hp * 1 EA) 48 HP Power Nos. of consumption ODUs (k. W/h) S-MMS MULTI V Plus II 32 HP Sub total (k. W/h) Power Sub Nos. of consumption total ODUs (k. W/h) Total power consumption (k. W/h) 49. 67 11 546. 37 28. 65 1 28. 65 575. 02 42 11 462 28 1 28 490 ■ Operation condition of A/C units - 24 hours / day, 30 days / month, 12 month / year - Electrical charge : 6 Rs / k. Wh 1 month S-MMS MULTI V Plus II Gap Basic power consumption (k. W/h) Total power consumption (k. Wh) 1 year Electrical charge (Rs) 575. 02 414014. 4 2, 484, 086 29, 809, 037 490 352800. 0 2, 116, 800 25, 401, 600 85. 02 61214. 4 367, 286 4, 407, 437 Copyright ⓒ 2008 All rights reserved LG Electronics Inc.
3. Performance comparison under the hot temp. Inverter Scroll compressor has high performance under the condition of hot temp. Outdoor unit 100% Cooling Capacity (k. W) Power consumption (k. W) Outdoor temp(35℃) Outdoor temp(40℃) S-MMS 135 125. 60 49. 67 52. 55 MULTI V 135 130. 37 42. 00 45. 38 135 52. 55 130. 37 49. 67 45. 38 125. 60 42. 00 <Cooling Capacity> <Power consumption> Copyright ⓒ 2008 All rights reserved LG Electronics Inc.
4. Compressor comparison (Efficiency) Rotary compressor is weak for liquid compressing and has 92% cooling and heating efficiency compared to scroll compressor. Toshiba S-MMS MULTI V PLUS II Capacity (k. W) 24. 0 25 Type Rotary type MULTI V PLUS II Scroll type 20 16. 3 ※Based on 1 inverter comp. 15 Structure 19. 4 13. 1 60 90 120 Frequency (Hz) ※Reference from each companies’ compressor catalogue MULTI V PLUS II Feature Less Liquid handling Convenient for handling large capacity Volumetric Efficiency 92% 100% (Base) Origin of Development Toshiba (Japan) LG (Korea) [Efficiency comparison for compressor type (reference from air-conditioning technology thesis)] Copyright ⓒ 2008 All rights reserved LG Electronics Inc.
5. Design limit comparison LG MULTI V PLUS II is excellent for maximum pipe length S-MMS MULTI V PLUS II Maximum pipe length 150 m 200 m Maximum relative pipe length 175 m 225 m Total expansion pipe length 300 m 1000 m Height difference (Upper outdoor unit) 50 m 100 m Height difference (lower outdoor unit) 40 m 100 m Maximum length after first branch 65 m 90 m ■ LG MULTI V PLUS II system has a plate type sub-cooling HEX ü Increased sub-cooling by plate-type heat exchanger ü Enable to be long piping length and level difference ü More powerful Cooling operation Plate type SC Copyright ⓒ 2008 All rights reserved LG Electronics Inc.
Copyright ⓒ 2008 All rights reserved LG Electronics Inc.
Appendix. Design limit of Toshiba S-MMS Copyright ⓒ 2008 All rights reserved LG Electronics Inc.
Appendix. Design limit of MULTI V PLUS II Outdoor units MULTI V Plus II 110 m ON ON ON Indoor units <DA Research Lab in Korea> 103 m Copyright ⓒ 2008 All rights reserved LG Electronics Inc.
Appendix. Power consumption of Toshiba S-MMS Copyright ⓒ 2008 All rights reserved LG Electronics Inc.
Appendix. Power consumption of Toshiba S-MMS ■ Power consumption of Toshiba S-MMS 48 HP : 49. 67 k. W/h ※ Source - Toshiba Engineering data book Copyright ⓒ 2008 All rights reserved LG Electronics Inc.
Appendix. Power consumption of Toshiba S-MMS ■ Power consumption of Toshiba S-MMS 32 HP : 28. 65 k. W/h ※ Source - Toshiba Engineering data book Copyright ⓒ 2008 All rights reserved LG Electronics Inc.
Appendix. Power consumption of MULTI V PLUS II ■ Power consumption of MULTI V PLUS II 48 HP : 42 k. W/h Copyright ⓒ 2008 All rights reserved LG Electronics Inc.
Appendix. Power consumption of MULTI V PLUS II ■ Power consumption of MULTI V PLUS II 32 HP : 28 k. W/h Copyright ⓒ 2008 All rights reserved LG Electronics Inc.
Appendix. Compressor capacity of Toshiba ■ No of compressors – Toshiba S-MMS 48 HP : 8 Compressors (4. 2 k. W*2)*4 ※ Source - Toshiba Engineering data book Copyright ⓒ 2008 All rights reserved LG Electronics Inc.
Appendix. Compressor capacity of LG MULTI V PLUS II ■ No of compressors - MULTI V PLUS II 48 HP : 6 Compressors (5. 356 k. W+5. 3 k. W)*3 Copyright ⓒ 2008 All rights reserved LG Electronics Inc.
Appendix. Delhi temperature Copyright ⓒ 2008 All rights reserved LG Electronics Inc.
Appendix. Load performance of Toshiba S-MMS ※ Source - Toshiba Engineering data book Copyright ⓒ 2008 All rights reserved LG Electronics Inc.
Appendix. Load performance of Toshiba S-MMS ※ Source – LG MULTI V PLUS II Engineering data book Copyright ⓒ 2008 All rights reserved LG Electronics Inc.
Appendix. Certificate for Energy conservation product Copyright ⓒ 2008 All rights reserved LG Electronics Inc.
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