Technical Papers and Articles

Cleaning of the Sulfur Recovery Unit is Essential to Efficiency
written by Tim Meyer. Published in the Spring/Summer edition of Sulfuric Acid Today

How Reducing the Pressure Can Increase the Effectiveness
By Beth Foley-Saxon This article discusses the positive improvements that tube cleaning will have on longevity and quality of life of plant condensers.

Liquid Nitrogen Removes Tube Deposits when other Methods Fail
By Beth Foley-Saxon
Published in the Spring/Summer 2017 Sulfuric Acid Today

Conco Fin Fan Mechanical Tube ID Cleaning & Bridging System
Conco has developed and facilitated a mechanical cleaning method that can completely remove the deposit from fin fan cooler tubes that is safe, efficient and cost effective.

While Neither Bottom Dog nor Bellwether, the Plant Condenser Carries its Weight
by Beth Foley-Saxon – Power Engineering magazine, January 2017. This article discusses power plant condenser design and maintenance. Click on link for article: http://digital.power-eng.com/power-eng/201701?sub_id=CFXMtEzS8eqM&folio=30&pg=33#pg33

Moisture-Free Surface Cleaning Technology: NitroLance™
by William Putman – Sulfuric Acid Today magazine, Spring/Summer 2016. This article discusses the use of pressurized liquid nitrogen in a supercritical state to clean a variety of heat exchangers, boilers, reactors economizers and other industrial surfaces.

Leak Detection the "Ins" and "Outs"
by Barry Van Name – Power Engineering magazine, February 2016. This article discusses the problems associated with air Inleakage and water leakage, common source locations and the method used to detect them.

A Journey to Improve Condenser Performance
by Barry Van Name – Power Engineering magazine, July 2015. While there is an industry-wide understanding that compromised condenser tubes reduce unit performance in the short term, the long-term effects of this neglect can be detrimental, forcing unplanned outages and loss of revenue.

Cleaning with Liquid Nitrogen
by Beth Foley-Saxon – JetNews magazine, February 2016. This article discusses the history, procedures and benefits of using high-pressure super-cooled liquid nitrogen as a tool for cleaning condensers and heat exchangers.

Optimum Heat Exchanger Performance Depends on Clean Tubes
by Jennifer Larson – JetNews magazine, October 2015. This article discusses the correlation between heat exchanger tube condition and unit performance, types of deposits and the procedures to mitigate the fouling.

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 Nondestructive 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.

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
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
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
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)
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
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
Sector: Power Generation

Article: Air Preheater Cleaning with NitroLance™ Liquid Nitrogen Cleaning
Sector: Power Generation

Article: Refinery Reduces Heat Exchanger Cleaning Downtime with Liquid Nitrogen
Sector: Refining & Petrochemical

White Paper: The Economics of Regular Condenser Maintenance
Sector: Power Generation

Technical Paper: Improving Condenser Reliability and Availability Through Effective Cleaning and Testing
Sector: Power Generation

Technical Paper: Optimizing the Cleaning of Heat Exchangers
Sector: Refining and Petrochemical

Technical Paper: Using Turbine Thermal Kit Data to Benchmark Condenser Performance Calculations
Sector: Power Generation

Technical Paper: The Measurement of Condenser Losses Due to Fouling and Due to Air Ingress
Sector: Power Generation

Technical Paper: Proper Maintenance Practices for Condenser Cleaning and Inleakage Inspection
Sector: Power Generation

Technical Paper: Economic Effects of Condenser Backpressure on Heat Rate...
Sector: Power Generation

Article: Handling the Pressure (Cleaning Air Heaters with Liquid Nitrogen)
Sector: Power Generation

Article: Calcium Carbonate Scale Removal from Nuclear Condenser Tubing
Sector: Power Generation