Jump to content
ADI Forums


  • Content count

  • Joined

  • Last visited

  • Days Won


starcat last won the day on November 2 2017

starcat had the most liked content!

Community Reputation

1 Neutral

About starcat

  • Rank
  1. Waste Water -- Anyone use Septic Tanks?

    Based on my experience in running septic on a decent sized commercial property and what I have read on the matter this is a very tricky affair due to the potentially high bioactive nature of what is hitting the drainfield, which can destroy it in short order. I suggest you go over to Probrewer forums and read all threads regarding the subject. There is some good and detailed intel there. Star
  2. Glycol Systems

    Glycol can be useful for a number of reasons, but also has limits to be aware of. To clarify things, most Glycol systems as used in Breweries etc. are " OPEN LOOP " systems because the return well is open to and runs at atmospheric pressure. True closed loops such as Building Chill Water loops are closed and the entire system is pressurized as such. They behave differently and require different handling. You can use a straight glycol system and skip the extra complexity of a Glycol to water HX, but your chiller and well have to be oversized and the maths have to be respected. As MG Thermal has stated, ALL FLUID CHILLERS have a MAX return fluid temperature they can tolerate coming in, and as a general rule you really never want that above 85F. Your return fluid temp cannot be allowed to overheat the inlet fluid temp to your chiller HX, so design and correct balance of engineering are critical. The other point to be made is about attempting to bank BTUs on a recirc system which does not work the way people think it may. If your chiller is undersized, its all a game of load and timings. The only way to truly bank BTUs in a case like this is with one shot usage of the water that is pre-cooled, or an ice bank system. Otherwise the temperatrue of your cooling water will keep rising and never stay consistent and you will have to alter your process to make up for the lack of a static supply of cooling media which does not really make sense for product consistency and a stable process. With Glycol, your chiller can be outdoors with minimal need for extra freeze protection measures when brix is correct. Glycol does not transfer heat as efficiently as water. Glycol of the correct type does not require any additional chemical treatment to remain stable. Glycol is a challenge to seal with respect to any threaded type fittings due to the surface tension. Because of this facet a lot of shade tree methods for pipe fitting will fail and leak. Glycol is used in Brewery chillers in order to cool vessel contents into the MID 30F range, in which case the chiller setpoint may be 30F or below. Water systems are limited to 40F generally and even then have to be handled carefully control wise. It is not real fun to work with or get your hands in. Dye is generally added to the soultion to make leak detection easier. Mechanical pump seals tend to last longer than with straight water.
  3. boiler

    Its a workable idea if you have a capacity match for your load. You need decent and consistent quality of oil when doing this, not just from any handed off source or you can run into problems if its contamniated with a lot of foreign substance, or especially water. Looks like Columbia offer them as well. http://www.columbiaboiler.com/waste-oil-boilers.htm https://www.energylogic.com/waste-oil-boilers/features/ Keeping the oil tank filled is an extra step you do not have with gas fired in general.
  4. Boiler Chemicals

    A 5 gallon All in one such as #2210 Made by Power Engineering costs us $99.90 for the bucket. Its good to have a water chemstry expert from one of those Chem Sellers to take a look at your water and your system. At the very least its good to have a TDS/PH meter and a Sulfite reagent test kit on hand which should be read minimum of once a week with Blowdown schedule every day the boiler is run to maintain Conductivity, PH, TDS, and Chemical PPM. Star
  5. Chiller Setup

    Typical Chillers as used in Breweries etc. are generally not considered " closed loop " but rather " open loop " because the return well is vented and at atmospheric pressure. If your piping is not too far fetched air eliminators are not needed on this type of system. Check valves and anti backflow sytems are mainly to prevent loss of glycol from overflow back to the return well when the system loop pump is shut down. This is generally only ever an issue if you have a lot of vertical rise coming away from your chiller and it is volume dependent relative to the piping that must equalize. All kinds of people run glycol in PVC successfully, but I do not advise it for distillation as its possible for the temperatures on the return line to exceed the limit of that type of pipe. Its is possible to run straight glycol without a secondary glycol to water HX system if the chiller and return well are upsized. There are both advantages and disadvantages to both types of system.
  6. Hello from Moab, Utah and Moab Brewery. The Brewnaster-Stillmaster is Jeff and the Engineering Tech is Warren aka StarCat. Construction on the Distillery is to start around March 2017. I am currently looking for assistance with control system design and wonder if Swede is still doing Control Panels as shown on this page: http://distillerycontrols.com/