The Ray Set
The Ray is the entry level into automatic feeding. Its compact design and simple operation make it ideal for replicating continuous AD processes at the lab scale, especially for long term monitoring, stability assessment or AD modelling.
With two large 10L reactors, its volume produces large quantities of gas, constructing clear biogas production dynamics and making it easy to spot deviations. Learn how best to operate your AD plant by running a Ray in parallel, and experimenting in a risk-free lab scale environment.
Open source data logging
Our open source Arduino data logger records and stores the gas production data measured by the gas flow meter. When an event happens in the gas flow meter, a reed switch circuit is closed which is logged by the data logger. The BMP280 pressure sensor and thermocouple inform the data logger to automatically convert any gas volumes to STP. Data is easily extracted at any time through USB connection with any computer.
Easy operation
After the initial setup, simply top up your feeding syringe when it runs out (roughly weekly), and empty your effluent bottles to prevent pressure building in your reactor (roughly twice a week).
2 reactors and 2 auto-feeders
Each reactor has its own feeding rate, so you can model two setups with the same machine. Compare the results from different OLRs or test other variables such as feedstocks and additives.
2x 10L Reactors
large 10L reactors are well suited to higher total solid feedstocks such as maize sileage
2 Automatic Feeders
experiment with different feeding rates, to model your response to changes in gas production
Inside the Ray
2x 10L Reactors
The robust stainless steel reactors provide the non-reactive environment for anaerobic digestion. Enquire for different reactor volumes.
1L Effluent Bottle
The easily removable effluent bottle collects the excess digestate to avoid pressure build ups and spillages.
Automatic Feeder Syringe
The patented feeder syringe feeds the reactor at your programmed rate. It prevents backflow from the reactor and a full syringe feeds for about a week.
Mixer motor
Each reactor comes with a 20 rpm motor which constantly mixes the inside of the reactors.
Heater Jacket
The custom fit heater jackets maintain a consistent, programmable temperature inside the reactor.
Agitator Motor
To ensure homogenous feed, the agitator mixes the feedstock coming up from the feeding syringe.
Technical Specification
| Feeding type | Automatic |
|---|---|
| Reactors, 1st stage | 2 |
| Reactors, 2nd stage | 0 (extra stage possible) |
| Number of automatic feeders | 2 |
| Reactor volume | 1 / 2 / 5 / 10 / 20 L |
| Gas flow meter | 6-cell |
| Effluent bottle | 1 L |
| Temperature control | Ambient – 85°C |
| Agitators and mixers | Agitators 900 rpm, mixers 20 rpm |
| Mixer motor | 24V DC |
|---|---|
| Heater jacket | 110V AC, 150W |
| PLC control screen | 110V AC |
| Data logger | Arduino, 9V DC |
Optional extras
- 1, 2, 5, 20L reactors available
- Pressure valve for higher pressures inside reactor
- pH probe