Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  1. thorangle

    Pumpable refractory insulation for older HRSG

    Rain water enters the upper HRSG through steam pipe penatrations. The rain water over time has degraded the mineral wool insulation.
  2. thorangle

    Pumpable refractory insulation for older HRSG

    The internal stainless steal liner plantes are in good shape, no repairs necessary. I am able to drill through the outer casing wall (or cut through if need be).
  3. thorangle

    Pumpable refractory insulation for older HRSG

    Internal access in areas were the tube banks and baffels are located is impractal. Access would require moving large tube banks, and then the inner skin. Externall access is for the most part un-restricted.
  4. thorangle

    Pumpable refractory insulation for older HRSG

    Has anyone used or experience with Kaowool Pumpable insultation? I have three, 20 year old Heat Recovery Steam Generators with numerous hot spots. Many of the hot spots are in inexcessable areas. Thank You
  5. thorangle

    Biodiesel use in combustion turbine

    Anyone have experience using Biodiesel as the primary fuel for Combustion turbines? What issues did you experience? Specifically: -combustor/fuel nozzels -filter clogging -cold weather performance -above ground storage tanks Thank You
  6. thorangle

    Diesel storage & maintnenance policies

    I have three simple cycle Combustion Turbine sites that use diesel as a backup fuel. Each site can store inexcess of 100,000 barrels of diesel. Any information or directions to standards and Industry Best Practices regarding diesel fuel maintenance, rotation, and long term storage is...
  7. thorangle

    LNG volume @ STP

    A cubic foot, gallon, liter, or cubic meter of Liquified Natural Gas. What would its expanded volume be at standard temperature and pressure? Thanks.
  8. thorangle

    LNG volume @ STP

    A cubic foot (or M^3) of Liquified Natural Gas. What is its expanded volume at standard temperature and pressure? Thanks
  9. thorangle

    Combustion Turbine Exhaust corrosion

    The exhaust stacks on my combustion turbines are not lined, i.e. bare steel. Every time we start a unit, it rains rust flakes. A vendor has offered to "flame spray an aluminum coating" on the inside of the exhaust stack. Does anyone have experiense with corrosion in this area? Does anyone...
  10. thorangle

    Al flame spray CT exhaust stack

    I have corrosion problems in the exhaust stack of My Pratt & Whitney simple cycle combustion turbines. A vendor claims he can solve my corrosion problems by flame spraying the lower 20 feet of the exhaust stack with Aluminum (sorry no alloy specifications yet). Exhaust stack temperatures can...
  11. thorangle

    Underground 33 KV cable burial/protection requirements

    At my utility the following are trench depth standards: 600V - 50Kv Min. = 76cm, prefered = 90cm, Max. = 122cm Allowable exception due to rocky soil conditions are as follows: All cable in schedule-80 conduit, allowable trench depth to top of conduit = 46cm. All cable in DB 120 conduit with...
  12. thorangle

    System Utilization Factor

    I am comparing my utility planning practices with prevailing practices. With that in mind I have some questions I would greatly appreciate your responce on. The definition of Utilization Factor (UF) we use/go by is: UF is the ratio of the maximum demand of a system to the rated capacity of...
  13. thorangle

    Utilization Factor

    I would like to ask a few questions regarding Asset Utilization Factor to compare our pratices with prevailing paratices. Utilization Factor (UF) as we define/use it: UF is the ratio of the maximum demand of a system to the rated capacity of the system. In other words, the UF indicates the...
  14. thorangle

    H2 from seawater

    GregLocock Excellent point! Hydrogen being about 6 times less dense than Methane. Power consumed in a compressor being directly proportional to density. Everything else being equal (and perhapse a little over simplified). Hydrogen (gas) transport via pipeline should be significantly...
  15. thorangle

    H2 from seawater

    The Heating Value range for Natural Gas is approximatly 38.1 to 42.5 MJ/kg. The heating value range for hydrogen is approximatly 120.1 to 141.9 MJ/kg. The economics of transporting natural gas via pipeline is well established. Natural gas transmission pipelines are frequently designed and...
  16. thorangle

    H2 from seawater

    Muggle Is there an upper limit (theoretical and/or practical) of the DC voltage for "splitting" the hydrogen-oxygen bond? What is the upper limit based on? DubyaDee Interesting patent, I looked up the patent on the US patent office web site. The pilings on the piers I can look at...
  17. thorangle

    H2 from seawater

    My original question had to do with; what to do with off-peak electrical power produced from a tide stream generator. Given that tidal flows are very predictable (especial comparied to other forms of alternative energy) but frequently will not match up with peak electrical requirements...
  18. thorangle

    H2 from seawater

    Power lines are not with out losses. In fact, transporting hydrogen via pipeline is more effcient (less energy lost) than transmitting electricity via transmission lines for distances over approximatly 200 miles. The exact distance escapes me, the point is that over realtivily short distances...
  19. thorangle

    H2 from seawater

    I agree that the production of hydrogen and the subsequent use of hydrogen to produce electricity are inefficent. However, all thermal power cycles share the same/similare ineffciencies. If one then compares the effcientcies associated with the production, transport, and storage of the...
  20. thorangle

    H2 from seawater

    OK,I will admit my ignorance of photocatalytic materials, and platinum production. I was/am interested in the possibilities of using ocean tide streams to generate electricity. Since tide flows are cyclical and often do not corrispond to peak electricity demands, I was also interested in using...

Part and Inventory Search

Back
Top