Utilities Equipment Package

Any effective cooling water biocide and corrosion control programme needs effective monitoring to measure its success. This is essential in demonstrating progress, system cleanliness and overall programme efficiency.

Many of the Utilities stations in Australia use water sources that are high in organic loading and suspended solids, and are susceptible to fouling, corrosion, and microbio problems. Because of these factors, there was a need to demonstrate the effectiveness of the biocide and corrosion control programmes in place.

Another consideration for Australia, are the long distances and geographic isolation of many of the power stations, which can greatly influence response times, and monitoring frequency. In order to combat all these factors, an equipment package was put together especially for the Utilities industry. This semi-portable, weather-proof unit consists of a series of monitoring devices, data logger and modem, all contained within a mounted SS box. Once in place the unit only requires water (in/out), power, and a phone line to be supplied. (See Figure 1)

Figure 1. Utilities Equipment Package

The unit can then monitor conductivity, ORP, corrosion rates, bio-fouling rate and the interaction between electrochemistry & microbiological activity incorporated into the design of the BiOGEORGE. All of these readings are then stored via the data logger. The bio-fouling rate is determined via measuring the pressure drop across a length of pipe. An increase in pressure drop corresponds to a greater resistance, usually caused by bio-fouling.

The unit also comes with easy to use Microsoft Windows based software to allow for easy data download and manipulation. The software is capable of displaying graphs and trends, or the data can be exported into spreadsheet format (such as Microsoft Excel). (See Figure 2)

The addition of the modem allows for remote access dial-up, to increase responsiveness and minimise travel time. The reports can be printed, and the data analysed, without the need to physically visit the plant. The sales representative can then concentrate on value added work when on site.

Algorithms can also be used to manipulate the data into other useful forms such as heat transfer co-efficients, fouling factors, etc. The modular nature of the package allows for easy inclusion of additional equipment such as flow meters.

This kind of unit also allows for various personnel to have access to the same site data to facilitate auditing and trouble shooting.

Figure 2. Sample output from Data Manipulation Software. Click image for a more detailed view.