Services
Mechanical strength calculations, pressure equipment design, technical consulting, and 7-step delivery workflow.
Explore AllMechanical, strength, and FEA simulations
ASME VIII Div.1, EN 13445, and TEMA compliance
Standards evaluation and technical reporting
End-to-end flow from inquiry to technical support
Pressure vessels, reactors, tanks, piping, and columns
ASME & EN compliant vessel and nozzle calculations
Thermal and mechanical optimized exchanger designs
Advanced structural, stress, and thermal simulations
Pressure, temperature, and corrosion allowance
Industries
Cross-disciplinary engineering solutions tailored to the dynamics and process conditions of diverse sectors.
Explore AllCustom machine design and structural stress verification
Process tanks, dye kettles, and heat recovery exchangers
Thermal, biomass, geothermal, and cogeneration plants
API 650 / API 620 storage tanks and refinery systems
Heavy industrial furnaces, cooling towers, and steel structures
Waste heat recovery and green energy integration
3D CAD modeling and innovative prototype development
End-to-end plant layout, piping flexibility, and layout design
Standards
Engineering standards guide fully compliant with ASME, EN, API, and TEMA international codes.
Explore AllPressure vessel mechanical sizing and FEA criteria
CE & PED 2014/68/EU compliant calculations
Welded storage tanks for petroleum and chemicals
Shell & tube heat exchanger thermal & mechanical sizing
About Us
10+ years of engineering experience, 3P philosophy, vision, mission, corporate values, and commitments.
Explore AllExpert engineering team founded on shared excellence
Precision, Performance, Professionalism + EN
Engineering beyond standards mindset
Reliability, technical excellence, and continuous growth
Our differentiators and engineering commitments
Energy & Power Generation
Boilers, Pressure Vessels & High-Pressure Power Plant Piping
Thermal, biomass, geothermal, cogeneration, and combined cycle power generation plants require unyielding equipment integrity under extreme pressure and temperature. POLIEN Engineering designs EN 12953 steam boilers, Heat Recovery Steam Generators (HRSG), and ASME B31.1 power piping networks.

Fully Compliant with International Standards
Applicable Design Codes & Standards
Key Equipment & Applications
- Cogeneration & Combined Heat and Power (CHP) Plants
- Biomass and Bioenergy Power Stations
- Geothermal Power Generation Facilities
- Industrial District Steam and Hot Water Plants
Polien / Core Disciplines
Engineering & Analysis Scope
Industrial Steam Boiler Mechanical Sizing
Fire-tube and water-tube boiler calculations compliant with EN 12953 and ASME Section I codes.
Heat Recovery Steam Generators (HRSG) & Economizers
Exhaust gas heat recovery modules converting gas turbine / engine exhaust thermal energy into high-pressure steam.
Steam Drums, Flash Tanks & High-Pressure Separators
Heavy-wall SA-516 Gr.70 and alloy steel vessels engineered for steam separation and thermal storage.
ASME B31.1 Power Piping Flexibility Analysis
Thermal flexibility, seismic response, and pipe stress simulations for high-temperature steam lines using CAESAR II.
Polien / Deliverables