Filtration of Turbine Oil: Evaluating CAPEX vs. OPEX for Effective Turbine Oil Chemistry Management

Introduction:

Turbine oil plays a crucial role in the efficient operation of turbines, ensuring their longevity and optimal performance. Managing turbine oil chemistry is a critical aspect that demands attention to prevent issues such as varnish formation, which can adversely affect the equipment. In this article, I will delve into the considerations of CAPEX (Capital Expenditure) and OPEX (Operating Expenditure) when it comes to filtration of turbine oil, emphasizing the challenges and benefits associated with both approaches.

Turbine Oil Chemistry Management as a Full-Time Job:

Maintaining the chemistry of turbine oil requires continuous monitoring and management. The composition of turbine oil degrades over time due to various factors such as heat, oxidation, and contaminants. Effective chemistry management involves regular testing, analysis, and necessary adjustments to ensure the oil's integrity. This ongoing process demands expertise and resources, making it a full-time job to prevent degradation and ensure optimal turbine performance.

Hiring Filtration During Cold Shutdowns:

While hiring filtration services during cold shutdowns can provide a quick solution to address immediate concerns, it may fall short in dealing with issues like soluble varnish. Soluble varnish can adhere to surfaces, posing challenges for removal through temporary filtration processes. Quick fixes may not yield long-term benefits, necessitating a more comprehensive approach to varnish removal and prevention.

Duration and Cost of Varnish Removal:

The duration of varnish removal from both the oil and surfaces can be a prolonged process, often spanning three months or more. Monthly filter replacements are commonly required during this period to effectively remove varnish from the turbine oil. The cost associated with hiring filtration services for three months, including equipment rental and filter replacements, must be carefully considered.

CAPEX vs. OPEX: Permanent Installation of Filtration Equipment

Permanent installation of filtration equipment presents a capital-intensive solution with higher upfront costs but offers long-term benefits in terms of operational efficiency and cost-effectiveness. Here's a comparative analysis:

• CAPEX: Buying and Installing Permanent EquipmentHigher initial investment for purchasing and installing filtration equipment. Amortized over the equipment's lifespan, resulting in lower annualized costs.Provides continuous, on-demand filtration without the need for periodic hiring.
• OPEX: Hiring Filtration ServicesLower upfront costs but higher operational expenses over time.Monthly filter replacement costs during the varnish removal process.Potential interruptions during cold shutdowns, impacting operational continuity.

Conclusion:

The decision between CAPEX and OPEX for turbine oil filtration depends on various factors, including the specific needs of the facility, budget considerations, and the importance of continuous operational efficiency. While hiring filtration services during cold shutdowns may seem like a cost-effective option initially, the long-term benefits of permanent filtration equipment in terms of reliability and efficiency often outweigh the higher upfront costs. Careful consideration of these factors is essential for making an informed decision that aligns with the goals and requirements of the turbine system.

The Importance of Full-time Lubricant Chemistry Management with SVR? Oil Varnish Removal

Read below article and watch the video from EPT Clean Oil about this subject listed below

Full-time Lubricant Chemistry Management with SVR? ( cleanoil.com )