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Cost Benefit Study of Remote Controlled Main ...

SKU: GRI-98/0076
Cost Benefit Study of Remote Controlled Main Line Valves

This work was conducted to critically evaluate the benefits of remote controlled valves (RCVs) in terms of their potential impact on safety, property damage, and product loss in the event of line break. Analytical simulation results, National Transportation Safety Board's incident reports, and field experience reviewed in this study show that remotely controlled operators on main line valves can provide little or no advantage in preventing personal injuries or fatalities caused by gas pipeline ruptures.
Document Type
Report
Report Type
Final Report
Report Period
01/98 - 03/98
Corporate Source
Southwest Research Institute, San Antonio, TX
Sponsor
Gas Research Institute, Chicago, IL
Pagination
50p
Product Media
PDF Download
$295.00 / Each
 
Availability: In Stock
Summary:
This work was conducted to critically evaluate the benefits of remote controlled valves (RCVs) in terms of their potential impact on safety, property damage, and product loss in the event of line break. Analytical simulation results, National Transportation Safety Board's incident reports, and field experience reviewed in this study show that remotely controlled operators on main line valves can provide little or no advantage in preventing personal injuries or fatalities caused by gas pipeline ruptures. When injuries occur they almost always occur at or very near the time of rupture. The RCVs can have little or no influence on the severity of rupture, subsequent ignition, or the early stages of the blowdown process for at least two reasons: (1) time required to sense and confirm a line break, to establish its location, and to initiate valve closure; and (2) the blowdown process will usually continue for some time even after valve closure. For virtually all hazardous incidents, any effect of RCVs would be delayed. Modeling studies show that RCVs reduce the amount of gas lost in typical line break situations. However, the cost of retrofitting all main line valves to achieve that benefit renders the RCV impractical.
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