where expertise comes together - since 1996

Web's Largest Portal of Nondestructive Testing (NDT)
Open Access Database (Conference Proceedings, Articles, News), Exhibition, Forum, Network


NDT.net Issue - 2014-10 - NEWS

SteamPAC™ Surveys Steam Valves and Traps While In Service!


MISTRAS Products & Systems72, Princeton Junction, NJ [USA]
NEWS  
NDT.net Journal
Issue: 2014-10
INTRODUCTION

Handheld leak detection system identifies and quantifies through-valve loss of normally-closed steam valves for power generation. LOST STEAM EQUALS LOST DOLLARS

The closed loop design of a boiler directs the steam through the most efficient path for producing electricity. Thermal efficiency in a plant is the amount of steam produced versus the amount of steam that ultimately reaches the turbine. Each leaking valve along the path contributes to a reduction in efficiency. These losses require more fuel to provide the same energy at the turbine, increasing costs and stack emissions.

As the power fleet ages, so do the primary components of the plant. From isolation and stop valves to vent and relief valves, continual repair and replacement of these components is necessary to keep plants operating at optimal efficiency. Identifying the valves that are allowing the greatest loss is a critical tool in the financial management of a plant.


Loss Calculation Software Data Screenshot

THE RIGHT TOOL FOR THE JOB!

SteamPAC™, with a powerful formula for estimating leak rates, is used in fossil fuel plants to survey the entire inventory of steam valves and traps while in service. This results in positive impacts on Heat Rate and CO2 stack emissions.

The SteamPAC™ sensor “listens” to the turbulence created during expansion of high pressure liquids and gasses passing through a small opening.

STEAMPAC™ LOSS EXAMPLE

Typical 400 MW Pulverized Coal Boiler

Thermally Efficient Pulverized Coal Boiler (PCB)

  • 1 ton of coal = 26,000,000 BTU
  • 1 MW requires 9,000,000 BTU per hour
  • 400 MW requires 138 tons of coal per hour

    Less Efficient Pulverized Coal Boiler (PCB)

  • 1 ton of coal = 26,000,000 BTU
  • 1 MW requires 14,500,000 BTU per hour
  • 400 MW requires 223 tons of coal per hour

    Savings in fuel cost with increased thermal efficiency... At $14/ton of coal, fuel cost savings is $1100/hour ($26,400/day) by reducing loss of steam through normally closed valves - reduction of 84 tons of O2/day.

    High frequency detection is not susceptible to normal operating background noise and vibration, virtually eliminating false positives seen by airborne detection.

    SteamPAC™ uses a proprietary algorithm to identify through-valve gas losses and estimates leak rate. Using the readings from SteamPAC™ along with the valve type, size and differential pressure, the calculations are performed within the handheld or the supplied software.

    The route-based user interface is simple and intuitive. A single button press will store readings from a valve. Wirelessly transferring the readings to a computer provides trend analysis and leak cost equivalents to justify repair and replacement. A LONG HISTORY OF IDENTIFYING LEAKS

    MISTRAS | Triple 5 has been identifying boiler tube leaks for over 25 years. The Acoustic Monitoring System (AMS) is installed in over 100 power plants around the world, has identified 1000’s of leaks, saving plants millions of dollars.

    CALL OR VISIT US ON THE WEB FOR MORE INFORMATION:
    Phone Number T: +1(609) 716-4077
    Email Address: triple5@mistrasgroup.com
    Website: triple5.mistrasgroup.com
    MISTRAS | Triple 5
    195 Clarksville Road, Princeton Jct., NJ 08550 - USA

    More of MISTRAS Products & Systems published in NDT.net
    2015-03-01: Mistras' Solutions for Power Generation
    2014-07-01: Structural Health Monitoring Case Studies from In-Service Structures
    2014-07-01: Acoustic Emission for Scientists and Engineers
    2014-04-01: Live Web Event: How a Holistic Approach to Mechanical Integrity Delivers Value Beyond OSHA PSM Compliance
    2014-04-01: Acoustic Emission Level II General Training
    2014-03-01: Characterisation of the damage and fracture mechanisms in Ti3SiC2 using acoustic emission
    2014-03-01: Acoustic emission detection of damage in reinforced concrete conduit
    2014-03-01: Continuous monitoring of rock failure by a remote AE system
    2014-03-01: Improved source location methods for pressure vessels
    2014-03-01: Acoustic Emission High Tech Week
    All 112 Articles & News of MISTRAS Products & Systems in NDT.net


  • © NDT.net - The Web's Largest Portal of Nondestructive Testing (NDT) ISSN 1435-4934

    Open Access Database, |Conference Proceedings| |Articles| |News| |Exhibition| |Forum| |Professional Network|