Finally getting around to this again... We decided to take the advice from the thread and ditch the 10 barrel BIAB idea. Thankyou BrunDog and stevehaun for helping with this. We are going with a 3 vessel electric approach, HLT, MLT and Kettle all converted from similar 212 gal conical bottom pressure vessels. These are better suited for fermentors but we are limited in funds. The HLT is complete and the kettle is in the shop ready for fabrication. Attached is a picture of the HLT from a few weeks ago..
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We have currently sourced the items we think we need to make this condenser a reality. Shown below is 4" triclover fittings. We like the idea of coming straight off the sidewall of the vessel with an elbow in which we will weld a port on the vertical axis of the elbow. This will adapt to whatever fitting is needed for the sprayer. Disregard the horizontal outlet of the tee as this will be a straight piece of pipe in its place. The side mount will also serve as an overflow protection.
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To get back to the original questions...
We do not currently know the boil off rate but we are supplying an adjustable 45K watts over 5.5barrels preboil. We hope to a boil off of 5-10%, i believe these are industry standards. There is some learning curve here as this is new equipment..
The source water will be approx 70deg on average. We may see as low as 60 in the winter and as high as 80 in the summer, pressures are unknown. We can however use water from our cold liquor tank if this will help.
Any help would be greatly appreciated! Need to confirm this design is appropriately sized for our system as well as sprayer head requirements.. We have high pressure pumps to help supply as well..