Temperature Control Panels For Vadose Zone Monitoring

An architectural and engineering (A&E) firm was contracted to design a system that would help accelerate decomposition of waste materials in landfills. Pumping air into the vadose zone, the area between a ground surface and the water table, helps accelerate decomposition of waste in the landfills. Heat created from the by-products of accelerated decomposition have the potential for spontaneous combustion.

The A&E needed a temperature control panel monitoring and alarm system that would shut down the air compressors and provide alarm signals in the event of an over temperature condition.

Durex’ process control panel team designed a programmable logic control (PLC) based monitoring and alarm system. The monitoring solution included eight temperature sensor assemblies that would be located at various points within the landfill. The PLC provided the logic for monitoring temperature rise at the eight locations and would signal an auditable alarm and shut down the air compressors if there is an alarm condition. Since the control panel was located outdoors, Durex designed the control panel with a back lit liquid crystal display (LCD) and housed in a NEMA 12 enclosure.

Durex delivered the temperature control panel as a complete pre-programmed turnkey system, including documentation. The technicians installed and tested the temperature control panel and sensors without problems.

Contact us to learn more about all our temperature control panel solutions.