Munters Group Ab · OMXSTO:MTRS
Munters Group Ab — Technical Presentation (May 2020)
12 slides from Munters Group Ab's technical presentation, May 28, 2020
Slide 1: Webinar Wednesday: Motor Technology
5/28/2020 We will begin shortly… Can you hear the music? Please use Google Chrome or Microsoft Edge. Your web browser will attempt to connect your mic and speakers to the audio conference. You MUST give the browser permission to do so by clicking ALLOW. Left click on the lock icon in the address bar
Slide 2: Types of Motor Construction
5/28/2020 Types of Motor Construction AC Induction (Squirrel Cage) • Direct Drive • Belt Drive • Typical efficiency ranges of 70%-88% • Most common in the industry • Full speed ratings of ‒ 3,500 RPM 2-Pole ‒ 1,750 RPM 4-Pole ‒ 1,075 RPM 6-Pole ‒ 800 RPM 8-Pole Types of Motor Construction SR (Switch
Slide 3: AC Induction Motor Construction Details
5/28/2020 AC Induction Motor Construction Details AC Induction Motors • AC Induction motors have been the standard in many industries since the early 1900’s • Invented by Nikola Tesla in 1887 • Low starting torques limit applications for direct drives • Variable speed applications are limited and ca
Slide 4: Switched Reluctance Motors
5/28/2020 Switched Reluctance Motor Construction Details Switched Reluctance Motors • Switched reluctance motors have seen increasing use as electronic motor controls have evolved • Developed in 1838 but limited by crude switching capability • Began to be considered as an option as the semiconductor
Slide 5: Munters Drive Construction Details
5/28/2020 Munters Drive Construction Details Rotor Design Stator Design 13 BLDC / PMAC (EC) Motors • EC Motors were developed in the 1960’s with the advent of solid state electronics • Very efficient designs are available • Internal rotor can be up to just below 90% efficient • External rotor design
Slide 6: Applications Using Munters Drive Brushless DC Motor
5/28/2020 Applications Using Munters Drive Brushless DC Motor Using Munters Drives – Field Information 17 Case 1: Total Barn Increased Profitability Broiler farm in Italy: Minimum Ventilation 6
Slide 7: End of Batch Results
5/28/2020 End of Batch Results • Power consumption House 1 ( after 55 days ) 1,746 kW/h • Power consumption House 2 ( with Munters Drive after 55 days) 1,333 kW/h (- 25 %) • Heater usage House 1 ( after 55 days ) 455 hours • Heater usage House 2 ( with Munters Drive after 55 days ) 421 hours ( - 7 %
Slide 8: Expected Energy Savings
5/28/2020 Case 2 : Munters Drive Saves a Lot of Energy Level Diff On Off E1 E2 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T13 CFM Original CFM 1 0 27 280 31% 31% 31% 31% 2428 2400 2 0 27 250 31% 31% 31% 31% 2696 2667 3 0 27 200 31% 31% 31% 31% 3312 3273 4 0 27 160 31% 31% 31% 31% 4048 4000 5 0 27 120 31
Slide 9: Broiler Farm
5/28/2020 Customer Measured Savings Case 3 : Side by Side Comparision – University of Georgia Broiler Farm University of Georgia - Test Farm 27 9
Slide 10: Layer Farm
5/28/2020 University of Georgia - Test Farm Reduced Energy Consumption Conventional AC motors have a start-up spike up to 4 or 5 times of operating point Minimal spike Reduction in operating power consumption Case 4 : Reduced Life Cycle Cost Layer Farm 10
Slide 11: Designed for our industry
5/28/2020 Heat = Energy + Friction losses Munters Drive Conventional Motor House Temperature 29.6°C 28°C (82.4°F) (85.3°F) 50.1°C (122.2°F) 34.7°C (94.5°F) Designed for our industry New Installation Savings • Electrical savings ‒ Reduced contactor with thermal overload and cabling on new installatio
Slide 12: Summary
5/28/2020 Summary • Munters Drive is a direct drive EC motor • Constant performance through life of fan (no belt and pulleys to wear) • Low maintenance (no belt and pulleys to wear) • Robust design suitable for agriculture • EC motors has much higher efficiency than AC motors • Naturally variable sp