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MG Thermal Consulting

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Everything posted by MG Thermal Consulting

  1. Lb, I distribute a line of shell and tube mash exchangers, two week lead time from receipt of order and payment. I can sent a photo over to you if you email me at mikegronski@gmail.com I offer the closed loop system: chiller with chilled water pump, water reservoir and mash exchanger. Regards, Mike
  2. I have one comment, and that is to VERY careful with any stainless product brought over from China. More than one instance of stainless not being true, despite Chinese "paperwork". You can demand metal be tested once it gets here, but all you can do then is not use it- try suing the Chinese.
  3. I can get a modified radiator type cooler, I would have to run the parameters for the smaller load to see if I can get something that small...I proposed a couple air coolers for some larger set ups (over 250 gal) and as I recall, the price on that was around $2,000 (I needs higher temp construction and high temp motors). You do have to use a small duct (not included) to discharge the HOT air outdoors and be able to isolate to prevent freezing inside the coil when not in use. I have to refine this design (when I get a company to cooperate). The coil part is not the big problem, it's what you do with the hot air and isolating the circuit in the off cycle when freezing. I am talking cooling wort directly. If you are talking cooling glycol with air, that's off the shelf- in the winter it's all you'd need, but you would need a small chiller to take care of the remainder btus in the summer. Lots of variations, it's how much $$$ you have.
  4. Like many, the steam boiler usually has excess capacity, so a steam/water heat exchanger does the trick. Not as much steam in SE USA (not as many pipefitters either)but in the northern states the reuse of water as a preheater is valuable, but solar is tough- hard to get good quality sun. For the rural distilleries, better value if a water source heat pump/chiller/underground piping grid is an option for the cooling and heating loop.
  5. Good luck on the start up. It seems you Texans are starting up quite a few micros and making the ones there bigger as well. If you have any need for info on water cooling systems or heat exchangers, drop me a line.
  6. Heat transfer would be great, having the steam boiler already is the part that has the greatest cap expense. Looking at some of these options for a proposed distillery in VA. I'll let you know how the numbers crunch out.
  7. You list a "recycled" cooling water system- how do you intend to do that?
  8. that would make him "vintage" for sure!! The fellow is looking for the "old timey" style tho, but thanks for your input.
  9. Like many things, it's familiarity with processes and the equipment offered. I have been in the application and sales of package chillers for over 30 years and sometimes it just comes to nuances in the equipment (and cost, of course). Many times, the glycol is used as a freeze protection, but any chilling done to water with shell and tube or plate evaporators normally need glycol to prevent internal damage to tubes/plates from refrigerant temperatures being close (or at freezing). For cold filtration, glycol is needed to suppress the freeze point to get the cooling solution below freezing. These days, with accelerated cost of city water, the closed loop water (or glycol/water) system pays for itself in quicker response times, water cost savings, and the ability to operate at consistent temperatures all year round. The first cost of equipment is balanced by the water and sewer costs that accelerate as distilleries become more profitable and want to expand. Many areas in the Southern US simply become unmanageable to be able to cool mash when city water temps rise to 80F and higher. Like many things, the budget needs to take this into consideration. The jacketed tank works fine for fermentation temp control, but cannot cool mash fast enough in most cases, which is why the separate mash exchanger is used ( sometimes used equipment is purchased incomplete as well, not knowing what the extra heat exchanger was for).
  10. I have a friend that calls on all the Mass engineering companies...I shoot him an email. Mike Gronski www.mgthermalconsulting.com
  11. Also the fact that the amount of cooling water will be less (like saying your heat exchanger is too small) going through the smaller column. The relationship to the amount of plates inside the column matters as well.
  12. Funny, I don't remember Dad discussing all this on Grandpas farm ... we were near Bath, NY (close to wine areas of the Finger Lakes. About all I remember from when I was little that the apples were sour (to a kid that can mean anything, I suppose)and the trucks came in the Fall and made a lot of racket picking them for cider. I think the crabapples that grew along fence rows were sweeter- now that's a tart apple!
  13. Good Luck, You will have lots of ways to lower costs with reclaiming heat from the biodiesel. I believe Carl has some micros in your area that I hoped to visit when I worked in Charlotte but missed out. If you need any water chilling info, give me a shout! Mike Gronski MG Thermal Consulting
  14. Pretty common to tap off chiller pump supply to feed part of the flow to control fermenter. This will be tougher to do with temp fluctuations of city water as well.
  15. I have a price reduction on a 10 HP 208-230/3/60 dual compressor chiller with 1.5 HP circulating pump suitable for outdoor or (with proper ventilation) indoor use as a straight water chiller without glycol. The chiller was used for about six months before being turned in for a larger unit. It's parts warranty has expired but it has 4 yrs remaining on the compressor warranties on the two 5 HP compressors. The factory will check out the unit and set the unit up for the desired supply temperature. Please contact me for other details, 678-773 2794 or email.
  16. Like many, if you lack the capital to buy a chiller first, you'll have to bite the bullet and use city (or well) water, keeping in mind that chillers will constantly give you 50F process water (if you can put a portable chiller indoors- taking care of electrical codes) where many parts of the country city water will rise to over 80F in the summer. Keeping track of your water costs will tell you when you need to buy a chiller (also look at leasing a chiller, it should pay for itself over time versus city water). If you have a well, it's a bit of a different story- unless your well runs dry!
  17. Is it vintage or new? I have someone looking for a "vintage" copper still. Mike
  18. Great news for all Texas distillers wanting to get started or expand!! Here's to many customer direction signs, too.
  19. I have some used chillers and new ones as well.
  20. What is done with industrials on larger panels is to positively pressurize with an inert gas (no O2). The Motors can be TEFC bit the wiring must be nema-7 as well as junction boxes. I guess you'll have to ask the inspector if he wants you to use nema-7 throughout.
  21. The fan, fan motor and junction box, along with wiring must be X-prf as well. Best way to Xprf the junction box (NEMA-12) is to fill with silicon after making sure your wiring is ok (otherwise you'll have a junction box that weighs more than the fan). You need to talk to an electrician familiar with NEMA-7 codes.
  22. Brandon, I have four used ones, gas fired, but I believe they are hot water type. I am checking into them for someone else as well and will let you know. Mike
  23. I do know that Champion (Quincy, IL) air compressor makes oil-less compressors, small ones 1/2 to 5 HP, used a lot with medical facilites. They are recip type and can be duplexed up and such. I believed they are owned by Quincy now, but have their own site with a list of distributors and service centers. Mike
  24. I offer new and rental cooling equipment (chillers, pumps) in the industrial marketplace. Also, at times have used/reconditioned glycol/water chillers to sell. Please contact me should the need arise. (we would be able to set up the start up service on the chillers as well). Regards, Mike Gronski 678-773-2794 www.mgthermalconsulting.com
  25. Thanks, Lenny. I got a reply, but the stills are in Europe (I guess I'll find out if the guy goes on Vacation across the pond). Regards, Mike
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