How to calculate the full life cycle cost of FFU? Purchasing, energy consumption, filter elements and maintenance scope
Why is it not enough to only look at the purchase price?
In FFU procurement, price is an important factor, but it is not the only factor. Some FFU have lower purchase prices, but have higher operating energy consumption, frequent filter replacement, or higher maintenance costs. Some FFUs have higher purchase prices, but have stable operation, lower energy consumption, and longer maintenance cycles.
If you only compare purchase prices, you may overlook long-term operating costs. For clean room projects with continuous operation and large quantities, operation and maintenance costs account for a large proportion of the total cost. Therefore, the entire life cycle cost should be considered when evaluating FFU.
Full life cycle costs include procurement, operating energy consumption, filter replacement, spare parts, maintenance and implementation costs. The evaluation period and operating assumptions must be consistent, otherwise the comparison results will be meaningless. Aili Industrial has complete production capabilities in FFU complete machine manufacturing and can provide cost data for different configurations. For the basic structure of the FFU machine, you can refer toAili Industrial FFU fan filter unit。
What does procurement cost include?
The purchase cost is not just the price of a single FFU. Also included are filters, controllers, group control systems, cables, mounting accessories, spare parts and transportation costs. If the project requires custom construction or special materials, procurement costs may increase.
When comparing procurement costs, the scope of supply should be unified. Quotations from different suppliers may contain different contents, and total prices cannot be directly compared. For quotation comparison, you can refer toHow to uniformly configure and compare different FFU quotations (Note: This link is an example of the FFU product page, please refer to the corresponding page on the site for specific quotation comparison content).
How to calculate operating energy consumption
Operational energy consumption is an important component of the entire life cycle cost. When calculating, the input power and operating time should be recorded according to the operating mode, and then the annual power consumption should be calculated. The input power should be the value under actual operating conditions, not the nameplate power.
If the project has production mode and duty mode, they should be calculated separately. Possible changes in power due to dust accumulation on the filter should also be considered. For specific methods, please refer toHow to calculate the annual power consumption of FFU (Note: This link is an example of the FFU product page, please refer to the corresponding page on the site for specific energy consumption calculation content).
How to Calculate Filter Replacement Costs
Filter replacement costs include filter purchase costs, replacement labor, downtime losses and verification costs. The filter replacement cycle is related to the inlet pollution load, filter dust holding capacity and operating status.
This can be calculated by multiplying the number of annual replacements by the cost of a single replacement. If filter replacement requires downtime or affects production, downtime losses should be included. If leak detection or cleanliness verification is required after replacement, the cost of verification should also be considered.
The replacement cost of high-efficiency filters is usually higher than that of primary filters. Maintenance of the primary filter can reduce the load of the high-efficiency filter and extend the replacement cycle.
How spare parts and maintenance costs are calculated
Spare parts and maintenance costs include replacement and repair of fans, motors, controllers, seals and cables. Maintenance costs include daily inspections, cleaning, commissioning and troubleshooting.
Spare parts and maintenance costs are related to equipment reliability, maintenance methods and operating environment. If the equipment is more reliable, maintenance costs may be lower. Indirect costs may increase if maintenance requires frequent access to the cleanroom or mezzanine.
What does implementation cost include?
Implementation costs include installation, commissioning, group control configuration and training. If the FFU requires special mounting structures or interfaces, implementation costs may increase. Implementation costs may also vary if the project requires phased renovations.
Implementation costs should be considered in the project budget and not just equipment purchases.
How to unify evaluation cycles and assumptions
The whole life cycle cost evaluation should unify the evaluation period and operating assumptions. The evaluation period can be five years, ten years, or the expected life of the project. Operating assumptions include operating mode, operating hours, electricity prices, filter change intervals and maintenance frequency.
Different vendors may use different assumptions and these should be consistent when comparing. If the assumption is opaque, the comparison results may be distorted.
How to check sensitivity
Lifecycle costs are subject to several assumptions. Changes in electricity prices, operating hours, filter replacement intervals and maintenance costs may affect the results. Sensitivity analysis can be performed to see how the total cost of different options changes when key assumptions are changed.
Sensitivity analysis can help determine which factor has a greater impact on costs and provide a reference for decision-making.
Issues that should be confirmed in advance during project communication
During the FFU full life cycle cost assessment stage, it is recommended to confirm the following with the manufacturer: procurement scope; power data for different operating modes; filter life and replacement costs; spare parts and maintenance costs; implementation costs; evaluation cycles and operating assumptions; electricity prices and maintenance frequency; and sensitivity analysis requirements.
If you are evaluating the full life cycle cost of FFU, you can visitAili Industrial FFU fan filter unit understands the complete machine configuration, and you can also contact Aili Industrial for cost evaluation support.
in conclusion
The full life cycle cost of FFU should include procurement, operating energy consumption, filter replacement, spare parts, maintenance and implementation costs. The evaluation period and operating assumptions must be consistent, and you cannot just compare the price of a single device. Operating energy consumption and filter replacement costs account for a large proportion of long-term operation, and should be focused on accounting.
Aili Industrial has complete production capabilities in FFU complete machine manufacturing and can provide cost data for different configurations. If you need to know more about FFU cost assessment, you can visitAili Industrial FFU fan filter unit , you are also welcome to contact Aili Industrial for project support.
