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Alcoa World Alumina

Written by E-solar Friday, 29 May 2009 21:37

Solar Energy System

Alcoa World AluminaAlcoa's RDA 9 project is a civil/earthworks project to construct a 60 hectare residue storage facility and is being constructed by the Alcoa-Leighton Alliance.

As part of the project Alcoa needs to power an e-Sampler (Dust Monitoring System) that will take dust level measurements on daily basis to monitor Alcoa's efforts in reducing dust levels by 25% at their Pinjarra site.

The e-Sampler takes an air sample every minute and analyzes the dust content. An air pump turns on and sucks in a sample, during which time the dust sample is dried by a heater and then the sample is pumped back out. This takes 5 seconds of operation every minute.

If a high reading occurs, a blue strobe light alarm activates for 10 minutes and an in built mobile phone sends an SMS ALARM to coordinator's mobile phone.

The e-Sampler in addition to other peripherals operating at peak, draw 2 amps at 12 Volts. This is a total consumption of 4 AH/D

Problem: Alcoa required a reliable system to monitor dust levels remotely and intervene when required

Solution: The dust monitoring system is powered entirely and managed  remotely by a solar system comprising of:

System Composition

  • 01 H42 Watts E-Solar Modules
  • 01 K12 Charge Controllers
  • 01 100 Ah E-Solar Sealed Lead-Acid Deep Cycle AGM Battery
  • Accessories
Benefits:

24 hour dust level monitoring
SMS & Blue Strobe Light alarms on high readings

Remotely operated

The system will alert the supervisor only when action is required