BioWin®

Bio Gas –

The alternative energy source of the future!

BioWin® -

Bio Gas Analysis of the future!

How to describe Bio Gas ?

• Gas mixture formed by an anaerobe, bacterial decomposition of organic substances

liquid manure, vegetable waste out of agriculture and foodstuff industry, wood, greases ...

• Content:

- approx. 50 .. 70 Vol.% CH4

- approx. 30 .. 40 Vol.% CO2

- Parts von H2S, N2 und H2

• Measurement of the CH4-content in Bio Gas for controlling the fermenter function and the effectiveness of the motor

• Measurement of the H2S-content: protection of the lubricant of the gas motor

• Measurement of other components (CO2, H2, O2..) for evaluation of the fermenting process

Fermenter Motor / Generator

Biogas

BioWin®

Tasks of the BioWin® :

magnetic valve gas cooling unit variable pump flow-meter

H2S-transmitter 2000ppm (EC)

CH4-transmitter 100 Vol.% (IR)

CO2-transmitter

100 Vol.% (IR)

O2-transmitter

25 Vol.% (EC)

H2-transmitter

2000ppm (EC)

Air inlet

Gas inlet

RS232/RS485

BioWin-terminal

8 floating inputs analogue outputs

5 relays alarm 1

1 relay alarm 2

6x transistor-outputs

6x opto-coupled inputs

outletTerminal block

(all internal signals are connected to the terminal block)

environmental monitoring, max 3 transmitters 4..20mA

Micro controller:

Real time-clock,

DA/AD - converter, EEPROM, FLASH, RAM, Watchdog, serial interfaces

Speed-monitor of fans

Functions:monitoring of measured values,

System supervising and step-control

I/O-control

Terminal interface

PC-connection

control room

(PC, SPS)

RS232/RS485

Block Diagram

• Application: Monitoring of Bio Gas (suction)

• Measuring ranges: CO2: 0 – 100 Vol. %

CH4: 0 – 100 Vol. %

O2: 0 – 25 Vol. %

H2S: 0 – 2000 ppm

H2: 0 – 2000 ppm

(other gases on demand)

• Alarm levels: 2 alarm levels, freely adjustable

BioWin® - Technical Data

• Measurement:

- Continuously or in freely programmable intervals

• Measuring gas preparation

- Integrated measuring gas preparation with measuring gas cooler, finest filter as well as automatic condensate outlet

• Monitoring

- Electronic flow monitoring (Principle of differential pressure)

- Monitoring of the cooling temperature of the Peltier

- Rotational speed monitoring of the rack fan

BioWin® - Technical Data

• Outputs:

- 5 relay contacts (N.C. and N.O.) for the separate alarm signalisation (Alarm 1) of the 5 measuring channels

- 1 relay contact collective alarm (Alarm 2)

- 1 relay contact system failure

- 8 transistor outputs (24V/0.4A) to switch the internal as well as external magnetic valves (e. g. Change-over of measuring points)

- max. 8 optional, opto-decoupled analog outputs 0/4..20mA for measured values

BioWin® - Technical Data

• Inputs- 8 opto-decoupled switch inputs 12..24V, 5 of which freely

available for optional applications such as external control signals ( e.g. „start Measurement“, channel change-over etc.)

• Analog Inputs- Measuring inputs 0/4..20mA for max. 8 transmitters. Besides

max. 5 internal used measuring channels three additional channels are available, to program external signals as per customer requirements. This enables connection of additional transmitters, e.g. for monitoring of ambient air, temperature or humidity.

BioWin® - Technical Data

• Interfaces- Two serial Interfaces available: RS232 or RS485. One is

configured for communication with the terminal, the second one might be configured / programmed for external data processing (control unit or PC) as per customer requirement. By default all measured values as well as parameters are transferred via these interfaces.

- The terminal interface is used additionally for programming the On-Board Flash of the Micro-controller. This enables to update the software without changing the EPROM.

BioWin® - Technical Data

• Terminal- For displaying the measured values BioWin® offers an external

operating terminal with optional RS232 or RS485 – connection to the controller.

BioWin® - Technical Data

Electrochemical transmitter

Module with filter, magnetic valve, needle valve

Measuring gas pump

Peltier cooler

Micro-controller and I/O- module

Infrared transmitters

Terminal board

Power supply

Condensate pump (hose pump)

Fan with rotational speed control

BioWin® - Assembling

• Transmitter module- The separate mounting plate on the right side wall of the housing covers

a maximum of five transmitters which are connected to the measuring gas preparation and control unit via four plug-in hose channels as well as 5 plugs for the transmitters. This facilitates service and maintenance.

BioWin® - Technical Data

• The Software fulfils the following tasks:- Parameterization of the measuring channels and alarm levels- Programming the process control- Displaying the measured values in clear bar graph schemata- Detailed, numeric displaying of each channel- Monitoring of the measured values with regard to exceeding of the alarm levels - serial communication with control room computer

BioWin® - Software

• PC-Software (2004)

- Parameterization of the analysing system

- Displaying, evaluation and storing of the measuring data

- Remote controlling of the analysing system (change-over of measuring points...)

• GSM-Modem (2004)

- alarms via SMS

- Remote parameterization, check of measured values

BioWin® - Extensions