Thank you so much for the generous support! 🙌 I'm really glad you found the explanation helpful. It means a lot to me that you're enjoying the content. If you have any other questions or topics you'd like to explore, feel free to let me know. Thanks again for your support!
You're very welcome! Glad you found the video helpful. If you have any other questions or topics you'd like to see, feel free to let me know. Thanks for watching!
good. only ceramic materials(wc) proper for herringbone groove? How about using metal (Stainless Steel)? Is the depth of groove is getting larger as the radius shaft gets larger?
Thank you for your comment. In the video, I discussed how Tungsten Carbide has been effectively utilized in compressors by Fischer company. While there have been attempts with Stainless Steel, it's worth noting that high-speed operations can pose challenges (medium-speed operations might be more viable). Feel free to give it a shot and share your findings with us. Your experimentation could provide valuable insights into this area!
Thank you for your question! I appreciate your interest in my RUclips channel. In response to your query, the herringbone groove bearing is indeed a gas bearing. Its load capacity can be comparable to a gas foil bearing, but it generally has a higher capacity. If you'd like more detailed information on this topic, I recommend checking out Part 17 of my video series where I discuss it in depth. As for determining the recommended rotor speed, you can find specific guidelines at the end of Part 13 video. However, it's important to note that defining the rotor speed is influenced by various factors such as operating conditions, rotor design, bearing design, and motor design. While the DN value can give you a rough estimate of the rotor speed, it's crucial to consider the overall system requirements and specifications. I hope this clarifies your query. If you have any further questions, please feel free to ask!
@@RotorDynamics Thanks for your attention! Your video is always informative and helpful, I’m really your fans and learn a lot from your video. Thank you again. As you mentioned in the part 17, the gas foil bearing has a larger clearance and this clearance will lead to increased leakage and lower aerodynamic efficiency of the blower. This phenomenon will be especially prominent for higher pressure compressors. I noticed that the Herringbone Grooved Bearing has much smaller clearance, and it seems to be a better solution for compressor. But I didn’t know whether it can achieve about over 100-200kW for this kind of bearing. And Is there a correlation between power and rotational speed? Thank you so much and have a nice day!
Great question! In my experience working with compressor sizes ranging from 100-200kW, I've found that this size range tends to have a fairly large machine, with a rotor assembly weight of around 40 kg. One challenge with frequent start/stop cycles is that the gas bearing can wear quickly, unless you have external pressure to lift the shaft during start-up and shut-down. As mentioned in the video, achieving the proper functionality of herringbone grooves requires maintaining tight tolerances, which can be quite difficult for larger machines in the 100-200kW range, unless you're willing to invest a significant amount of money in the manufacturing and assembly processes. If Teqtoniq hasn't found a way to produce their compressor with herringbone groove bearings at scale and at low cost, it suggests that herringbone grooves may not be the most suitable technology for now. But, technology does advance rapidly, and it's certainly possible that herringbone groove bearings could become more widely used in the future. At the 100-200kW range, Danfoss (Turbocor) has been doing a great job with their magnetic bearing technology for compressors. This alternative approach offers advantages in terms of performance and reliability.
Thank you for this amazing explanation
Thank you so much for the generous support! 🙌 I'm really glad you found the explanation helpful. It means a lot to me that you're enjoying the content. If you have any other questions or topics you'd like to explore, feel free to let me know. Thanks again for your support!
Your support means everything to us. If you find value in our videos, please consider sharing them with someone who would benefit. Thank you so much!
Thank you !
You're very welcome! Glad you found the video helpful. If you have any other questions or topics you'd like to see, feel free to let me know. Thanks for watching!
good. only ceramic materials(wc) proper for herringbone groove? How about using metal (Stainless Steel)? Is the depth of groove is getting larger as the radius shaft gets larger?
Thank you for your comment. In the video, I discussed how Tungsten Carbide has been effectively utilized in compressors by Fischer company. While there have been attempts with Stainless Steel, it's worth noting that high-speed operations can pose challenges (medium-speed operations might be more viable). Feel free to give it a shot and share your findings with us. Your experimentation could provide valuable insights into this area!
Good job! Would you mind introduce the recommend load capacity of this bearing and the recommend rotor speed ?
Thank you for your question! I appreciate your interest in my RUclips channel. In response to your query, the herringbone groove bearing is indeed a gas bearing. Its load capacity can be comparable to a gas foil bearing, but it generally has a higher capacity. If you'd like more detailed information on this topic, I recommend checking out Part 17 of my video series where I discuss it in depth.
As for determining the recommended rotor speed, you can find specific guidelines at the end of Part 13 video. However, it's important to note that defining the rotor speed is influenced by various factors such as operating conditions, rotor design, bearing design, and motor design. While the DN value can give you a rough estimate of the rotor speed, it's crucial to consider the overall system requirements and specifications.
I hope this clarifies your query. If you have any further questions, please feel free to ask!
@@RotorDynamics Thanks for your attention! Your video is always informative and helpful, I’m really your fans and learn a lot from your video. Thank you again. As you mentioned in the part 17, the gas foil bearing has a larger clearance and this clearance will lead to increased leakage and lower aerodynamic efficiency of the blower. This phenomenon will be especially prominent for higher pressure compressors. I noticed that the Herringbone Grooved Bearing has much smaller clearance, and it seems to be a better solution for compressor. But I didn’t know whether it can achieve about over 100-200kW for this kind of bearing. And Is there a correlation between power and rotational speed? Thank you so much and have a nice day!
Great question! In my experience working with compressor sizes ranging from 100-200kW, I've found that this size range tends to have a fairly large machine, with a rotor assembly weight of around 40 kg. One challenge with frequent start/stop cycles is that the gas bearing can wear quickly, unless you have external pressure to lift the shaft during start-up and shut-down.
As mentioned in the video, achieving the proper functionality of herringbone grooves requires maintaining tight tolerances, which can be quite difficult for larger machines in the 100-200kW range, unless you're willing to invest a significant amount of money in the manufacturing and assembly processes. If Teqtoniq hasn't found a way to produce their compressor with herringbone groove bearings at scale and at low cost, it suggests that herringbone grooves may not be the most suitable technology for now. But, technology does advance rapidly, and it's certainly possible that herringbone groove bearings could become more widely used in the future.
At the 100-200kW range, Danfoss (Turbocor) has been doing a great job with their magnetic bearing technology for compressors. This alternative approach offers advantages in terms of performance and reliability.
Nice, Really very useful! How did you know so much 😂?
Thank you for your comment! I'm glad you found the content useful.