Arduino Code ver0.2

In the last months significant improvements were made on the code. Today ver 0.2 is released. The main new features are: all variable names in English. improved sensitivity of the leak sensor. The leak sensor recognises fluids inside the case. The red LED will be constantly flashing if a leak was detected. Do not touch any […]

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Drawings Issue 02

Two months ago the drawings issue 01 was posted. Making the microstill I found typos and errors that needed to be corrected. In issue 02 these are corrected. Regarding the piping, the design was improved. Now it is possible to first solder the inner tubing of the cooler and then the outer tubing. The instructable […]

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Arduino Code Published

Please find below the two Arduino codes required to make your microstill work. The first program GetAddress is used to read the unique address of the temperature sensors. After the address has been read it needs to be inserted into the microstill code. GetAddress_ver0.1.pdf The second program microstill, runs the micrstill. After having adjusted the […]

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Bill of Material ver 0.1

All drawings and the bill of material are complete! The individual drawings are linked to the corresponding module at the main page. The complete BoM as per today can be found below. Module Item Description Quantity Unit 1 Electrical Enclosure 200x120x75 mm 1 pcs 1 Cable gland M25 1 pcs 1 Cable gland M16 3 […]

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Recovery Rates

Recent activities focussed on the recovery rates. What percentage of alcohol in the wash will be distilled? As a reference, I found a table in a book by Malle and Schmickl. They were using a pot still. To make the individual runs comparable the vapor temperature was measured. In general at a vapor temperature of […]

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Energy balance

As outlined in the post on process design the microstill recycles the heat. The hot product vapor condenses in the heat exchanger and the wash is preheated. The energy is transferred from the vapor to the fresh wash. No additional coolant is required. The wash serves as coolant. What interested me is the balance between […]

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Documentation updated

Reflecting the latest developments, the block diagram and the PID have been updated. Actually the entire still is now significanly smaller and less complex. There is only need to control one pump and the heater. For reasons outline before, the heat exchanger and a second pump are not required. I also posted an update of […]

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