Most Fin Fans / Air Coolers are running 15-30% below design airflow, and sites are unaware. Curran’s Air-Side Performance Audit measures actual fan performance against design specs, identifies mechanical and thermal inefficiencies, and delivers a prioritized action plan with clear ROI projections. The typical audit pays for itself within 1.4 years through reduced energy costs alone.
Most sites are unaware of how much energy their fin fans are wasting. Fans degrade gradually: belt slippage, bearing wear, fouled fin bundles and nobody measures the gap between design performance and reality until something fails.
Surface Energy Increase
Curran’s Air-Side Performance Audit gives you the data to stop guessing and start prioritizing. Our experienced technicians measure every fin fan / air cooler against design specs, capture thermal performance with infrared imaging, and deliver a report with budgetary pricing and ROI for every recommendation.
Prioritized recommendations with payback periods under 1.4 years
Using calibrated instruments, we measure actual air velocity at each fan and compare directly to design specifications. This reveals the real airflow gap — typically 15-30% below design. Motors consuming 60%+ more power than specified become immediately visible in the data.
Infrared imaging captures thermal performance across every bay. We identify hot-air recirculation, fouled fin bundles, and underperforming sections. The data feeds into our performance model to calculate current efficiency vs. design — clients typically see 68% thermal performance where they expected 100%.
Every recommendation comes with a budgetary price, expected annual savings, and payback period. We model each upgrade independently so you can prioritize by ROI. Typical projects achieve $500K+ in savings with payback periods under 1.4 years — backed by the same data we present to super-major refineries.
Once the audit identifies fouled tubes, our grit blasting crews restore heat transfer efficiency in-situ. The patented dry abrasive process removes tenacious scale and deposits without water, delivers IRIS-ready cleanliness, and completes with zero rework. Small crew, small footprint, predictable schedule.
For tubes with wall loss, pitting, or corrosion beyond cleaning, we install full-length alloy liners. Hydraulically expanded for complete metal-to-metal contact, liners upgrade your metallurgy without a retube. The entire scope — audit, cleaning, and lining — can execute in a single turnaround mobilization.
We’re not just going to give you a report and walk away. After your performance audit, Curran has the services, crews, and equipment to execute every recommendation. One partner from diagnosis through solution.
Sometimes the fix is straightforward — worn belts, failing motors, damaged fan blades, missing inlet screens, or undersized rotors. Our audit identifies these mechanical issues by severity so your maintenance team can prioritize the highest-impact repairs first. We can advise on sourcing and coordinate installation during your next planned outage.
For fouled fin bundle exteriors, our dry Crystal Clean process restores air-side heat transfer without shutting down the unit. No water, no chemicals — just restored airflow across the fin surfaces. Performed on-site with a minimal crew and zero impact to production.
Our dry abrasive process removes the bonded scale and deposits that hydroblasting leaves behind — no water, no scaffolding, no disruption to adjacent units. Tubes come out IRIS-ready the first time with NACE No. 1 / SSPC-SP 5 (white metal) cleanliness. Small crew, small footprint, predictable schedule.
For tubes with wall loss, pitting, or corrosion beyond cleaning, we install full-length alloy liners that upgrade your metallurgy in-place — restoring full heat transfer area at a fraction of retube cost. Available in 316L, C276, Inconel 825, and more. No retubing, no extended shutdown.
Protect and enhance your heat exchange surfaces with Graphene Thermal XR — a graphene-powered coating that rebuilds lost thermal conductivity, increases heat transfer rates, and prevents corrosion on tube OD surfaces. Applied on-site by spray during the same mobilization as cleaning. One coating, multiple benefits: better thermal performance, lower energy consumption, and extended equipment life.
Proven solutions backed by 25+ years of field experience and over 100,000 successful installations
Tell us about your air coolers — unit count, age, known issues. We'll scope the audit and provide a fixed-price proposal within 48 hours.
Our Technicians arrive on-site with calibrated instruments and thermal cameras. The full audit typically completes in 2-3 days with minimal disruption to operations.
You receive a detailed report with fan-by-fan measurements, thermal analysis, and prioritized recommendations — each with budgetary pricing and ROI projections.
Ready to act on the findings? Curran handles grit blasting, tube liners, and coatings in-house. One partner from diagnosis through restoration — no subcontractors, no finger-pointing.
01
We measure four things: mechanical condition (fans, motors, belts, bearings), airflow performance (actual CFM vs. design spec per fan), thermal efficiency (infrared imaging per bay), and energy consumption (actual kW vs. rated kW). The final deliverable includes a prioritized action plan with ROI projections for each recommendation.
02
Most audits complete in 2-3 days on-site. We perform measurements while the unit is running — no shutdown required. Our crew works from existing catwalks and platforms with portable instruments and thermal cameras.
03
Based on real client data, plants implementing our recommendations see $500K+ in annual savings from reduced energy consumption and improved process capacity. The average payback period is 1.4 years. One facility reduced motor power consumption by 40% and eliminated three days of unplanned downtime per year.
04
Yes, Curran is a turnkey partner. If the audit reveals fouled tubes, we clean them with our patented grit blasting process. If tubes need plugging or metallurgy upgrades, we install alloy liners on-site. Audit, cleaning, and lining can all execute in a single turnaround mobilization.
05
Hydroblasting leaves bonded scale behind and introduces water into the system. Our dry grit blast achieves NACE No. 1 / SSPC-SP 5 (white metal) cleanliness — the standard required for accurate IRIS inspection data. No water, no rework, no scaffolding. The tube surface is immediately ready for NDE with enhanced probe sensitivity.
