Mr. Patil,

My comments.

ENTRAINMENT SEPARATOR PANELS:

1)	We accept this design of the removable/rotatable Entrainment separator panels.
2)	We want TF to supply the panels on shipment to be installed in such a way that the V Blades will be exactly the opposite way that they are shown on the current G A Drawings. This will have these evaporators reach site rotating in the same manner as the 2 evaporators that are already installed and operating on site. [Subu: This ‘site’ Mr.Winnicki mentions is NOT to be confused with the site where you have supplied your earlier evaporators. Please therefore note that the  V blades will be exactly the opposite of what are shown in the GA drawings when they are shipped –  like how it has been said in the first sentence of this point. That is all that matters]

ROTOR SPEED:
During the past few months we have done a review of all of our previous waste oil plants and found out that most of the evaporators are rotating up to 50% faster than the ones supplied by TF earlier this year. That is, most of the evaporators in our plants are set up to rotate at full speed with a tip speed of 15 feet/sec. Therefore I request that we change the Rotor Speeds as follows:
•	The 20 m2 evaporator should rotate at 69 rpm when operated at 60 hz.
•	The 16 m2 evaporator should rotate at 79 rpm when operating at 60 hz.
Note that both evaporators will be equipped with Variable Frequency Drives so that speed can be slowed down if the operators desire.

We would prefer that you size the above gearboxes to mate with an 1800 rpm motor.


NOZZLES:
We accept the nozzle sizes but at this moment, the nozzle orientation is still on mold pending our final 3D design of the plant that these evaporators will fit into.

We look forward to the final G A Drawings of both of these evaporators with the above changes. Upon receiving them I will quickly approve the amended drawings.

Thanks for your prompt attention to these issues.

Regards


John Winnicki & Subu
