Heat Exchanger Design &
Mechanical Validation
Ensuring structural integrity and thermal efficiency for Aarti Industries Limited
through rigorous TEMA and ASME validation protocols.
Project Overview
The engagement focused on the comprehensive design validation of a Vertical BEM Shell & Tube Heat Exchanger. The primary objective was to ensure the unit could withstand extreme operating conditions while maintaining peak thermal performance.
Our engineering team performed rigorous calculations to reconcile thermal requirements with mechanical constraints, particularly addressing the unique challenges posed by the vertical orientation and fouling characteristics of the process fluid.
Tools Used
Aspen EDR
Thermal Simulation
TEMA Standards
Class B Standards
ASME Sec VIII Div 1
Mechanical Validation
4-Phase Validation Process
A systematic approach to engineering excellence, ensuring every component meets global safety and efficiency benchmarks.
Intake
Reviewing process data sheets, fouling factors, and nozzle requirements provided by Aarti Industries.
Model
Developing comprehensive thermal models in Aspen EDR to optimize tube diameter and shell layout.
Validate
Executing mechanical checks against ASME and TEMA for thickness, flange rating, and stress points.
Deliver
Final submission of Detailed Fabrication Drawings (DFD) and calculation reports for manufacturing.
Scope of Work
Our deliverables encompass the entire lifecycle of the heat exchanger’s technical design, providing a single source of truth for the fabrication team.
Project Compliance
100% ASME & TEMA
Thermal Design Validation
Verification of heat transfer coefficients and surface area efficiency.
Mechanical Strength Check
Stress analysis for shell, tube-sheet, and internal components.
Vibration Analysis
Calculation of fluid-induced vibrations to prevent tube failure.
Nozzle Loads & Stress
Validation of flange connections under pipe loading conditions.
TEMA Classification
Confirming adherence to TEMA Class R requirements for high-severity service.
Material Selection
Optimization of metallurgy for corrosion resistance and cost-effectiveness.
Engineering Challenges & Solutions
High Fouling Factors
Process fluids exhibited high particulates leading to significant scale buildup, which typically compromises heat transfer rate over time.
Engineering Solution
Implemented a wide tube pitch and removable bundle design to facilitate mechanical cleaning without unit disassembly.
Vertical Stability
The vertical orientation required precise calculation of seismic and wind loads on the skirt and support lugs.
Engineering Solution
Reinforced skirt thickness and lug geometry using FEA-verified mechanical stress distribution models.
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