In certain cases, water can actually cause, the spread of fire example, electrical fire or petroleum based fires.

In case of fire on Hydrocarbon if the water is sprayed, due to the light weight of the hydrocarbon it will float on the water and reignite them to fire and due to the speed of water the fire will travel from one place to other place.įire Protection Foam, also locally know as Foam Fire Fighting System is a system of firefighting, where water is not used. The City’s local control system integrator programmed all HMI graphics improvements as part of the construction contract through a multi-level review and testing process with the project team.Fires on Hydrocarbon are more frequent due to the volatility of the hydrocarbon and its property to not dissolve with water and lighter than water the fire extinguishing of hydrocarbon fire with water is not possible.

We worked with the plant operations and engineering staff to identify significant improvements that could be made to the existing HMI graphics, focusing on reducing clutter, eliminating extraneous background images, and revising or removing distracting detail from process equipment and piping graphics to make critical information and alarms more visible to operations staff. We sequenced hardware installations so that only one panel was out of service at a time, enabling the plant to continue to operate during construction.

Portions of the existing fiber optic cabling installed throughout the plant were used along with new fiber optic cable to establish a new self-healing, Ethernet network ring around the facility, which was a significant improvement over the existing line-connected PLCs that would often result in a loss of communication with various control panels if any one panel on the line failed. We installed new PLCs, network switches, touch screen HMI computers, and Ethernet radios in existing control panel enclosures. We replaced or removed faulty and unused PLC code to improve process controls and documentation. We installed a new historical archiving and trending software package. We replaced Supervisory Control and Data Acquisition (SCADA) system human machine interface (HMI) computers and updated the HMI software to the latest version. Touch screen interface panels were replaced the radio telemetry system was replaced with an Ethernet-based radio telemetry system and several remote facilities were converted to fiber optic, Ethernet-based communications. This project consisted of replacing programmable logic controllers (PLCs) in 12 control panels distributed around the plant and in 13 remote facilities that communicated with Iowa City’s Water Treatment Plant via radio telemetry.

Scada based fire fighting system