Technical Papers and Articles

  • Conco U-Tube Cleaning System
    Conco U-Tube Cleaning System

    The fouling of U-Tube Heat Exchanger ID’s not only has a negative impact on heat transfer efficiency, but also may restrict the output or production capacity of the facility and data acquisition for non destructive testing of the unit. Traditional tube ID cleaning methods include the use of high pressure water and or chemicals. However, this can not only be dangerous, it also does not completely remove the majority of the deposit from the unit. As a result, Conco has developed and facilitated a mechanical cleaning method that can completely remove the deposit from the unit that is safe, efficient and cost effective.

  • Raise plant efficiency and lower production costs: Achieving total condenser performance
    Raise plant efficiency and lower production costs: Achieving total condenser performance

    Published in August 2013, this article discusses how Conco can help your plant acheive Total Consdenser Performance.

  • Eliminate secondary waste stream utilizing pressurized liquid nitrogen
    Eliminate secondary waste stream utilizing pressurized liquid nitrogen

    An article published in Energy Tech's September 2013 magazine discusses how the Nitrolance cleaning method demonstrates a significant improvement compared to traditional water-based methods of cleaning.

  • Article: Optimizing Condenser Tube Life with Nondestructive Testing
    Article: Optimizing Condenser Tube Life with Nondestructive Testing

    This article from the December 2012 edition of Energy-Tech magazine details the benefits of multi-frequency eddy current testing and mechanical tube cleaning for condensers. Follow this link to published Energy-Tech article.

  • White Paper: Heat Exchanger Tube Wear by Mechanical Cleaners
    White Paper: Heat Exchanger Tube Wear by Mechanical Cleaners

    Maintenance of power plant heat exchanger tubes often uses the mechanical cleaner method. This cleaning technique, using steel cleaners, was tested to determine possible tube wall reduction, or wear, on copper-nickel heat exchanger tubes. Results indicate insignificant tube wear by this cleaning method.

  • Technical Paper: Heat Exchanger Deposit Removal using Pressurized Liquid Nitrogen (LN2)
    Technical Paper: Heat Exchanger Deposit Removal using Pressurized Liquid Nitrogen (LN2)

    This technical paper was presented at the 4th Annual World Refining Technology Summit in Brussles, Belgium in October 2012. It details the cleaning effectiveness and efficiency of the NitroLance liquid nitrogren cleaning system and offers a case study of successful cleaning.

  • Article: Creating the Game
    Article: Creating the Game

    This article published in Energy & Infrastructure Magazine highlights Conco as the brand leader in condenser and heat exchanger tube cleaning. Beginning with the industry standard tube cleaners, the article follows the progress Conco has made in tube cleaning, including the innovation of NitroLance liquid nitrogen cleaning technology.

  • Article: Effective Condenser Cleaning Begins with an Effective Tube Cleaner
    Article: Effective Condenser Cleaning Begins with an Effective Tube Cleaner

    Sector: Power Generation

    This article published in Energy Tech Magazine highlights the importance of choosing the right tube cleaner for your condenser's site-specific conditions.  Determining the most effective cleaning technology depends on not only a knowledge of your condenser's fouling profile, but also your tube material, sizing and cooling water source.

    Keywords: condenser cleaning, condenser tube cleaning, heat exchanger cleaning, condenser tube cleaner, condenser tube cleaners, energy-tech magazine, conco, conco systems, george saxon jr., 

  • Article: Air Preheater Cleaning with NitroLance™ Liquid Nitrogen Cleaning
    Article: Air Preheater Cleaning with NitroLance™ Liquid Nitrogen Cleaning

    Sector: Power Generation

    This article published in Power Magazine examines the benefits of a patented and proprietary system utilizing liquid nitrogen instead of water to clean power plant rotary air preheaters, HRSGs and steam coil air preheaters.  The novel idea behind the system, in addition to its speed, is that the technology is dry, producing not a single drop of wastewater.  A typical water-based method of air preheater cleaning will produce several million gallons of contaminated wastewater that often cost plants more money to treat or dispose, than the cleaning itself.  

    Keywords: air heater cleaning, power plant air heater cleaning, air preheater cleaning, air pre heater cleaning, power plant air preheater cleaning, rotary air preheater cleaning, rotary air heater cleaning, ljungstrom air heater cleaning, ljungstrom rotary air preheater cleaning, ljungstrom rotary air heater cleaning

  • Article:  Refinery Reduces Heat Exchanger Cleaning Downtime with Liquid Nitrogen
    Article: Refinery Reduces Heat Exchanger Cleaning Downtime with Liquid Nitrogen

    Sector: Refining & Petrochemical

    Originally published in BIC Magazine, this article examines the use of pressurized liquid nitrogen (LN2) as a safe and effective industrialcleaning tool for removing tenacious fouling deposits encountered in petroleum refinery process equipment while also significantly reducing unit turnaround time.

    Keywords: refinery heat exchanger cleaning, sulfur recovery unit cleaning, waste heat boiler cleaning, liquid nitrogen cleaning, heat exchanger clean, cleaning heat exchangers, hydroblasting heat exchangers, nitro lance, nitrolance,