Expert Analysis to Maximize Thermal System Reliability and Throughout
Since 1987, IAC has designed, installed, and optimized thermal processing systems for some of the world’s most demanding industrial environments. Our specialized assessment services help operators evaluate the performance, reliability, and energy efficiency of rotary dryers, calciners, and other heat-based process equipment.
Each evaluation is led by experienced engineers and field technicians who understand how every component—from burners and drums to air handling and dust collection systems—affects product quality and throughput. We combine data-driven inspection methods with decades of OEM and EPC experience to identify performance bottlenecks, safety risks, and opportunities for measurable gains in fuel efficiency and capacity.
IAC’s approach extends beyond basic inspection. Our teams develop actionable recommendations supported by mechanical analysis, process modeling, and real-world operating data. The result is a clear path toward improved performance, reduced downtime, and longer system life.
An IAC Thermal Process Equipment Assessment is designed to evaluate every critical aspect of your drying, calcining, or combustion system. Our engineers take a holistic approach, considering not only the thermal unit itself but also the connected systems that influence performance.
Key areas of focus include:
Core Equipment – Rotary dryers, calciners, burners, and associated refractory linings.
Air & Gas Handling – Exhaust systems, ductwork, and airflow distribution to ensure uniform heat transfer and minimize carryover.
Material Handling Interfaces – Feed systems, conveyors, bins, and pneumatic lines that impact throughput and efficiency.
Energy Utilization – Benchmarking fuel use against industry standards to identify cost savings opportunities.
Safety & Compliance – Assessing fire and explosion risks, emissions performance, and alignment with current regulations.
This comprehensive scope ensures that assessments don’t just identify equipment wear or component failures—they uncover process inefficiencies that can limit productivity and profitability.
Once baseline data is collected, IAC’s team conducts a deep technical analysis to determine how well the thermal process system is performing compared to design parameters and production goals. These diagnostics identify inefficiencies that may not be visible during routine operation but significantly affect throughput, product quality, and operating costs.
Key performance factors evaluated include:
Heat Transfer Efficiency – Measuring energy input versus moisture removal or calcination results to pinpoint fuel losses and opportunities for improved thermal profiles.
Airflow & Gas Distribution – Using airflow mapping and, when required, computational fluid dynamics (CFD) modeling to identify uneven gas distribution, bypassing, or channeling that reduces drying efficiency.
Moisture Reduction & Product Consistency – Comparing actual discharge moisture content and temperature against target specifications to assess product uniformity.
Throughput Bottlenecks – Identifying restrictions caused by feed systems, internal flighting design, or exhaust handling that limit production rates.
Control System Performance – Reviewing burner management systems, PLCs, and MCCs to confirm proper sequencing, interlocks, and safety functions.
By combining physical inspection with data-driven analysis, IAC provides a clear picture of how effectively thermal equipment is converting energy into production output. This step establishes the foundation for mechanical, environmental, and retrofit recommendations.
Beyond performance diagnostics, the long-term reliability of thermal processing equipment depends on its mechanical condition and structural soundness. IAC’s assessments combine detailed physical inspection with advanced scanning technology to give plant managers clear insight into both current health and remaining service life.
Areas of evaluation include:
Rotary Drums and Calciners – Inspecting shell thickness, tire and trunnion alignment, and internal flighting for abrasion, distortion, or uneven wear.
Remaining Service Life Assessment – Using 3D laser scanning and ultrasonic thickness mapping, we generate contour profiles of the drum shell to identify localized thinning. These results are compared against original design values and wear-rate modeling to estimate remaining life in hours and tons produced. Deliverables include heat-mapped visuals, conservative lifespan projections, and repair vs. replace decision matrices that support capital planning.
Burner Systems – Verifying burner alignment, refractory lining, and seals to minimize fuel loss and reduce the risk of hot spots that accelerate shell wear.
Drive Assemblies – Checking girth gears, pinions, and drive trains for wear patterns, lubrication practices, and proper alignment.
Structural Components – Reviewing supports, ductwork, and framing for corrosion, cracking, or fatigue that could compromise safety and uptime.
By merging traditional inspection with modern 3D measurement, IAC provides a defensible basis for lifecycle decisions. Clients gain not only a list of repairs but a time-based roadmap that aligns with capex cycles, helping them budget wisely, minimize downtime, and extend the life of critical assets.
Thermal processing systems are tightly linked to air quality performance, workplace safety, and environmental permitting. IAC’s assessments include a dedicated environmental and compliance review to ensure equipment not only meets production goals but also operates within current and anticipated regulations.
Focus areas include:
Emissions Performance – Measuring and evaluating particulate, SO₂, NOx, HCl, and other regulated outputs against permit limits. Where needed, IAC can model system performance with computational fluid dynamics (CFD) to identify improvements in gas flow and capture efficiency.
Filtration & APC Systems – Reviewing baghouse or dust collector integration with dryers and calciners, ensuring fabric filters, pulse systems, and ductwork are optimized to capture fine particulates and acid gases.
Add-On Control Technologies – Identifying opportunities for dry sorbent injection (DSI), activated carbon, or other emission control systems that can cost-effectively achieve compliance.
Workplace & Safety Compliance – Verifying that fire suppression, explosion venting, and fugitive dust controls are aligned with NFPA, OSHA, and local safety standards.
Documentation & Reporting – Providing detailed inspection reports and performance data that can support environmental audits, renewals, or capital project justifications.
This compliance-focused step ensures that operational upgrades also translate into long-term regulatory assurance. By identifying gaps early, IAC helps facilities avoid costly fines, production interruptions, or forced retrofits later in the asset lifecycle.
Assessment findings are most valuable when they translate into actionable improvements. IAC develops retrofit strategies, and optimization plans that not only correct deficiencies but also unlock higher performance, longer equipment life, and better ROI. These recommendations are tailored to each facility’s operational goals, budget, and capex planning cycle.
Mechanical and Structural
Advanced drum flighting to create a thicker, more uniform material veil, improving heat transfer and reducing drying time.
Strengthened shell sections, tire attachment designs, and reinforced trunnion rings to extend service life while minimizing downtime.
Burner and furnace upgrades, including refractory replacement and sealing improvements, to enhance safety and combustion efficiency.
Process Optimization
Dryer and Furnace Tuning – Adjusting burner performance, air/fuel ratios, exhaust temperature profiles, and draft balance to maximize heat transfer and product consistency while lowering fuel consumption.
Airflow balancing through redesigned ductwork, inlets, and hoppers to ensure even velocity distribution across the system.
Heat transfer improvements using CFD analysis to identify and eliminate channeling or hot spots.
Smart Plant™ IoT-enabled controls for real-time performance monitoring, predictive maintenance, and faster troubleshooting.
Environmental and Compliance
Integration of dry sorbent injection (DSI) for SO₂, HCl, and HF removal.
Baghouse optimizations that improve airflow, reduce pressure drop, and extend bag life by up to 33%.
Explosion venting, fugitive dust capture, and NFPA-compliant safety improvements.
Optimization Plans
Short-Term Actions – Immediate fixes that deliver quick wins, such as dryer tuning, burner calibration, and baghouse adjustments.
Mid-Term Retrofits – Component replacements, flight redesign, and duct modifications scheduled around planned outages.
Long-Term Planning – Lifecycle strategies that align with capex cycles, including shell section replacements, control system modernization, or full dryer/calciner rebuilds.
By combining retrofit options with systematic dryer and furnace tuning, IAC helps facilities achieve measurable production gains, lower operating costs, and reduced risk — all with a clear roadmap for ongoing improvement.
A thermal process equipment assessment only delivers value if it results in measurable gains. IAC translates technical findings and retrofit options into clear financial and operational outcomes, giving plant managers and executives the confidence to act.
Quantified Production Gains
Increases in feed rate documented with retrofit and tuning programs, generating additional production capacity without expanding fuel usage.
Improved heat transfer and material flow reduce drying and calcining time, allowing more product per shift.
Energy and Fuel Savings
Lower BTU per ton through optimized burner tuning, flighting redesign, and better airflow distribution.
Reduced draft losses and minimized hot gas bypass improve fuel efficiency while lowering emissions.
Reduced Maintenance
Strengthened components and structural reinforcements extend drum and shell service life by years.
3D laser scanning and wall-thickness mapping provide reliable forecasts of remaining service life, enabling smarter capex planning.
Baghouse optimizations extend filter bag life, cutting replacement and labor costs.
Compliance and Risk Mitigation
Reduced emissions with baghouse enhancements and dry sorbent injection keep facilities aligned with evolving regulations.
Safety upgrades, including improved refractory, explosion protection, and fugitive dust control, lower the risk of costly incidents.
Strategic Value
Documented ROI often achieved in under 3 months for dryer retrofits and tuning programs.
Optimization plans tie directly into capital cycles, ensuring budget requests are backed with quantified performance and payback models.
Increased uptime and reliability reduce the risk of unplanned outages, stabilizing long-term revenue.
With IAC’s vertically integrated EPC + OEM model, clients gain not just an assessment but a roadmap to sustainable performance improvements — all supported by in-house engineering, fabrication, installation, and field services.
IAC’s role doesn’t end with an assessment. We provide ongoing support to maximize the performance, reliability, and safety of your thermal processing systems throughout their entire lifecycle.
Training & Knowledge Transfer
On-site seminars teach plant personnel the fundamentals of dryer, furnace, and baghouse operation, troubleshooting, and preventative maintenance.
Tailored sessions address plant-specific configurations, empowering teams to manage systems confidently and reduce reliance on emergency services.
Aftermarket Parts & Services
Access to more than 55,000 stocked parts ensures fast turnaround on replacements and upgrades.
Nationwide field service teams deliver inspections, repairs, retrofits, and preventative maintenance programs.
Smart Plant™ remote monitoring enables predictive maintenance, identifying wear or performance issues before they disrupt production.
Optimizing your thermal process equipment starts with a clear understanding of its current performance. IAC’s engineering and field experts provide the insight needed to plan repairs, upgrades, or full system retrofits with confidence.
Schedule an assessment to uncover how your dryers, calciners, or related systems can operate more efficiently, reduce maintenance costs, and improve product quality.
Call 800-334-7431 or complete the form below to connect with IAC’s Thermal Process Engineering Team to arrange a site visit. Our specialists will review your system data, outline a recommended scope, and help you develop a strategy for reliable, long-term performance.
