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  1. zane009

    Calculate Pipeline Pressure decay

    I am needing to calculate the pressure decay of a liquid ammonia pipeline (-33 oC). I am wanting to calculate the decrease in line pressure and discharge flowrate from a leak in the pipeline. This it to represent how much material is release after the isolation valve system is activated...
  2. zane009

    Liquid ammonia pipeline leak detection

    Thanks for the info. The flow meters at the start and end of the pipeline (300 mm) are DP type. We use the differential as a leak detection indicator (>50 tonnes/hr differential will activate the ESD). They do not handle two phase flow well and that causes problems. Information suggest that a...
  3. zane009

    Liquid ammonia pipeline leak detection

    Hi - I am in need of some assistance. I have been given conflicting information regarding the time a down stream flow meter will respond to a leak in a liquid ammonia pipeline (1.4 km, @ 750 tonnes/hr). One engineer says that as liquid ammonia is an incompressible fluid, the down stream meter...
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