This presentation identifies the common failure mechanisms, which alloys are particular sensitive, and changes that have occurred that increase the sensitivity today. It will also provide recommendations of what to do, and more importantly, what to ensure that your condenser/exchanger comes back into service problem free.
This paper provides an overview on a number of factors known to cause failure of a tube material and helps to identify the factors that need to be considered when selecting a material.
This paper identifies the manufacturing and chemistry changes for copper alloys and stainless steels over the last 30 years and the impact on resistance. It also suggests some tests that can be specified to ensure that you get what you expect for that alloy.
This paper discusses the failure mechanisms, lists the advantages and limitations of each alloy alternatives, and details the requirements needed for new Feedwater Heater tubing.
This paper provides an overview on a number of factors known to cause failure of a tube material and helps to identify the factors that need to be considered when selecting a material for a condenser, feedwater heater or balance-of-plant application.
A power plant engineer has many choices when selecting tubing materials for condensers, feedwater heaters, or balance-of-plant (BOP) applications. This article discusses forms and causes of corrosion that can lead to tubing failures and identifies factors that must be considered when selecting a tube material.
This paper summarizes the basic ASTM/ASME requirements with many of the additional property and testing options available to ensure reliable service for today’s power plant environment. It identifies the advantages and disadvantages of each and provides suggestions on what could be specified to ensure the best value tubing for your application.
Copper tubing in your condensers or feedwater heaters can be a problem when optimizing the cycle chemistry to protect the carbon and alloy steels. Ammonia additions for increasing pH also attack copper’s protective layer, decreasing the tubes life.
This paper summarizes some of the possible damage mechanisms, prevention tools, and payback justifications for making the preparatory changes before the problem hits.
Managing of a power plant today requires many decisions that can have a major impact on the bottom line. Making the correct one can make the management team heros. The wrong one could mean disaster. Today’s fuel costs have increased dramatically.
SEA-CURE® High Performance Stainless Steel Why Nuclear Power Plants Are Switching To SEA-CURE Thank you for your interest in SEA-CURE® high performance stainless steel as an alternative to titanium. SEA-CURE® is one of the most cost-effective alloys in high chloride applications and where the potential for microbiological influenced corrosion (MIC) exists. SEA-CURE® , which was …
A power plant engineer has many choices when selecting tubing materials for his condenser, feedwater heater or balance-of-plant application.
Rebuilding an old condenser using a modular rebuild, opposed to a simple retube, offers the owner a chance to obtain optimum performance by evaluating a number of tube material choices.
Field tests in microbially active waters were conducted with several austenitic stainless alloys in various welded conditions. The metallurgical, environmental and process design factors that influence MIC in service water systems are discussed. Recommendations for conducting MIC tests of fabricated pipe and tubing are offered.
A brief history of high strength steel development, current high-strength tubing options and their impact on system design, as well as insight into new developments in high strength hydraulic tubing and more cost-effective alternatives that can meet overall system design objectives.
Superferritic Stainless Steels –The Cost Effective Answer for Heat Transfer Tubing Authors: Daniel S. Janikowski and William Henricks Presenter: Daniel S. Janikowski – General Manager- Plymouth Tube, U.S.A Abstract: Traditionally, copper-nickel has been the work horse for desalinization and water recovery tubing using MSF and other heat transfer techniques. In the last few years, concerns …