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starcat

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starcat last won the day on November 8

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  1. ADE, wondering if you are anywhere near the Victor-Driggs-Tetonia area?
  2. SHL I hold you in the highest regard as an expert on this forum. I am here to contribute on Tech matters that I am well versed in only. My background is HVACR with Masters License in the State of Texas 1992. I have 30 years in and ran one of the shops for the Texas A&M system for about 7 years until I went to try a different sector. Before that I was a Heavy Commercial Service Tech in Dallas. I would agree single phase elements are the way to go. SCR control is nice when possible. Your product sounds first rate. Just for the record for the laypersons who do not have a lot of time in on electrical. The neutral conductor only comes into play in our world when dealing with 120v or 277V circuits. When working daily with and studying electrical systems, it is one of the most difficult conductors to properly understand. Especially with respect to it being a " grounded " conductor. I can recommend " Mike Holts " Electric Forum for anyone who is wanting to gain a greater degree of understanding. There are some sharp guys on that forum. We do not have a perfect setup here and were thrown into it with short information on a major fast track. I designed and built all the control panels for this Steam Fired Distillery under the gun. We are definitely still learning, but having had years of Brewery Experience to supplement with which crosses over fairly good on some fronts. ADI is a great resource. Sincerely
  3. " Wired line to neutral for 3 phase for each heating element, the current draw is 11.8A . " Three phase power at 208V for heating elements does not involve " NEUTRAL CONDUCTORS." If you have Neutral landed on your elements this is wrong. If you have actual 3 phase elements you land the 3 line conductors. Most systems use single phase elements which require single phase 208 which is 2 line conductors from alternate phases. Your 3 phase power is distributed among your elemnts in a balanced fashion in this manner with contactors and so forth. If you have 1 208V phase and one neutral landed on 208V elements, you have 120V applied voltage. If this was wired up by an electrician, you need to find another one soon. The only place you might need neutral is if your control circuit is 120V and is not supplied by an on board transformer. Otherwise there is no need to bring neutral into the cabinet or land it anywhere. The EGC is a seperate matter and you do need that.
  4. As noted above, we are short on information. You need to be able to dynamically read current and verify that your controller is also working correctly, as in energizing the elements at the correct time and keeping them online until setpoint is reached etc.This requires electrical skills and test equipment or having your electrician present when you are shaking the system down, and then knowing what to look for. 2100 Watts at 240V is about 90 Amps worth of power which is a fair amount. I would have to doubt that you are energizing the full array based on your report if it is sized correctly for the load. This kind of diagnosis involves working with and around live terminals, and should not be gone into lightly.
  5. I unknowingly bought some 1-1/2" non-domestic black pipe for a job. What has been detemined is it a real problem to thread for sure. Many industrial systems are using all SS for certain steam and condensate applications. Fur sure this is a great way to go if it can be done. Its also an art to cut and thread it.
  6. This was a run around the bend dealing with a boiler that is not fired 24-7, even with 170F standby. I have after some extreme effort and about 4 different combinations tried found the one that works and its looking pretty good. The chemical is Power Engineering 2478 which is a Nitrite and Amine. You set to 800-1200 PPM and monitor the other parameters within similar ranges to what is typically expected. This has gotten what would otherwise be considered a runaway corrosion problem into control. I can recommend it most likely for any distillery boiler that is not run often and is subject to go cold. A standby aquastat circuit on the boiler is advised, but the envelope may be able to be pushed. Your blowdown water should be near clear. The other thing I strongly advise is if you have extra Boiler capacity, then use your steam boiler to heat all your plant process hot water by one of several HX means. Then your system will be kept active most all the time, and your return station will stay warm which is important. Steam boilers of course do better when they are run near continuous. I have used and run Tube bundles with pump setups. Tube bundles in tanks, and HLT systems. Star
  7. If you have bought into this " Carbon " Falsehood. You've been conned.
  8. 85 CFM is a colossal amount of air required as well as the piping required to deliver it.
  9. Resources: https://law.resource.org/pub/us/cfr/ibr/001/acgih.manual.1998.pdf https://billpentz.com/woodworking/cyclone/ducting.cfm https://mastslav.weebly.com/ FPM tends to be more critical with respect to system design. Say you need at least 2500 ideally. The pneumatic vacuums I am looking at would be under rated for this kind of duty, and also are warned not to be used with combustible dust. I also expect they take some serious SCFM to run. Dust collection is usually done with cyclonic units or otherwise high CFM, High Static Pressure fans that exhaust to outdoors. TABLE 3-2. Range of Minimum Duct Design Velocities Nature of Contaminant Examples Vapors, gases, smoke All vapors, gases, and smoke Fumes Welding Cotton lint, wood flour, litho powder Local Exhaust Hoods 3-19 Design Velocity Any desired velocity (economic optirnum velocity usually 1000-2000 fpm) Very fine light dust Dry dusts & powders Fine rubber dust, Bakelite molding powder dust, jute lint, cotton dust, shavings (light), soap dust, leather shavings 2000-2500 2500-3000 3000-4000 Average industrial dust Grinding dust, buffing lint (dry), wool jute dust (shaker waste), coffee beans, shoe dust, granite dust, silica flour, general material handling, brick cutting, clay dust, foundry (general), limestone dust, packaging and weighing asbestos dust in textile industries 3500-4000 Heavy dusts Sawdust (heavy and wet), metal turnings, foundry tumbling barrels and shake-out, sand blast dust, wood blocks, hog waste, brass turnings, cast iron boring dust, lead dust 4000-4500 Heavy or moist Lead dusts with srnall chips, moist cernent dust, asbestos chunks frorn transite pipe cutting machines, buffing lint (sticky), quick-lime dust 4500 and up
  10. Skaalvenn, Fascinating, but the VID does not show on this end. I am intrigued.
  11. This matter is being overcomplicated and over thought. A properly installed thermowell with a properly installed probe and TEMP readout will work correctly. Its done in Commercial brewing all the time. There are also simple calcs for volumes of grain, and strike water at a given temperature that will result in you " hitting the target." Open, unprotected probes in a mash vessel are asking for trouble. If the mash is not properly stirred, its going to stratify. There would seem to be this tendency at large for a major lot of cut corner reinvention of the wheel on fronts that are already well tried, tested, and not that costly to do correctly.
  12. Ingersol Rand makes an ok air drier. I have run several. Your drier is sized by your peak load in SCFM. Temperate zones are a lot more sensitive that for expample we are in the High Desert. Back in Texas getting air dry was extreme. Same thing in South Carolina. The big systems we ran additional aftercoolers on the main line into the plant. If you are a small operation and do not have a large amount of pneumatic loads, you can likely get by with running 1/2" into the plant, but I would not go any smaller. You always have to consider future expansion vs. what you are wanting to run currently. Electric auto drains are way better than snap traps. I
  13. All Plant setting compressed air systems should have refrigerated air driers installed. You need to filter the air both before and after the drier, and your air receiver needs and automatic blowdown on the tank.
  14. MG Thermal you are always good for practical matters. There are a lot of ways to optimize chiller loads and I am with you on not wanting the return water temp above a certain critical threshold. This is for sure necessary. The thing that boggles my mind about everyone attempting to save dollars on first cost, is the idea of a cooling media supply that drifts higher during the run which in my view is fully unacceptable. If you want a rock solid process your condenser cooling fluid needs to be at a " constant." It does involve, not doing things on the ultra cheap to make this happen but you do not have to continually adjust your prcess due to a lack of the correct temperature media. This will take away instantly the chasing of certain variables that lead to inconsistency. It will allow you to focus on your process, instead of chase the lack or necessary cooling BTUs. Batch cooling really only is a time game. It does not give you more of the cooling BTUs in real terms that you may be short on. Star
  15. " Consumer Demand." This meme should go out of use, but of course we are in a reality where about only 4-7% of people standing are " Producers." That is people who put more energy out into the system than they take. Consumer is a real bad word in my view. Star Star4
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