Heat Recovery Steam Generator (HRSG)

The Heart of Combined-Cycle Power Generation

Heat Recovery Steam Generators (HRSG) are critical components in modern combined-cycle power plants, capturing waste heat from gas turbine exhaust to generate steam that drives additional turbines — significantly boosting overall plant thermal efficiency.

At MEEM, we manufacture the complete range of HRSG components and assemblies, from individual finned tubes and headers to fully integrated shop-assembled modules. Our products serve both new construction projects and retrofit/replacement applications globally.

4 Product Lines

ASME Code Compliant

Global Delivery

Advanced HRSG Manufacturing Workshop

Component Details

HRSG Product Portfolio

From individual finned tubes to fully integrated shop-assembled modules — every component is engineered, fabricated, and tested to the most demanding international standards.

01

Finned Tubes

MEEM offers finned tube manufacturing capabilities across a range of tube sizes, materials, and fin densities.

Production Lines: Six spiral finned tube lines, including four JTC lines imported from Korea, plus two Bohon finning lines.
Tube Dimensions: Diameters from 25 to 219 mm and lengths of up to 30 meters.
Material Options: Stainless steel (S30432), alloy steels (T91, T92, T22, and T11), carbon steel, and other grades.
Fin Density: Up to 354 fins per meter.

Headers, Manifolds & Piping Spools

MEEM’s dedicated header workshop supports new HRSG fabrication and replacement requirements for combined-cycle projects worldwide.

Fabrication Scope: HRSG headers, manifolds, and piping spools in diameters from 88.9 to 710 mm.
Material Capabilities: Carbon steel, low-alloy steel, P91, P92, and stainless steel.
Proven Experience: More than 20 years of HRSG header fabrication experience.
Replacement Solutions: Upgraded headers for existing units, helping customers address thermal fatigue and other long-standing operational challenges.

Headers and manifolds arranged on fabrication supports

02

03

Harps / Platens

MEEM manufactures harp and platen assemblies using dedicated fabrication stations and specialist teams.

Assembly Configuration: Each HRSG harp comprises an upper inlet header, a lower outlet header, and a complete set of interconnecting finned tubes.
Modular Benefits: A standardized heating-surface configuration widely adopted in combined-cycle power plants worldwide, offering excellent heat-transfer efficiency and on-site installation flexibility.
Manufacturing Resources: 40 dedicated jig stations and three specialist manufacturing teams.
Production Capacity: Approximately 120 harps per month.

Bundles / Modules

MEEM supplies medium- to large-scale, factory-preassembled HRSG bundles and modules that take integration beyond individual harp assemblies.

Integrated Scope: Multiple harp heating-surface assemblies, top support steel structures, roof casing, lifting and hanger systems, and expansion joint systems.
Workshop Preassembly: Components are integrated into a complete unit at MEEM’s workshop.
Site Benefits: Significantly reduced on-site installation time and construction costs.
Production Capacity: Approximately 120 modules per year.

04

Custom Sizes

Designed to match any OEM specification or custom engineering requirement

High-Temp Service

Up to 650+°C operating temperatures with alloy materials

High Pressure

Design pressures up to 200+ bar for ultra-supercritical applications

Full Testing

NDT, PMI, hydro-test, and dimensional inspection per ASME code

Applications

Industry Applications

Combined-Cycle Power Plants

Boosting overall plant efficiency by recovering gas turbine exhaust heat

Cogeneration & CHP

Simultaneous electricity and process steam generation for industrial parks

Industrial Waste Heat Recovery

Steel, cement, glass, and chemical plants converting waste heat to usable steam

Solar Thermal / CSP

Steam generation and thermal energy storage systems for concentrated solar power

FAQ

Frequently Asked Questions

Q: What is a Heat Recovery Steam Generator (HRSG)?

A: An HRSG captures waste heat from gas turbines or industrial processes to generate steam. It is widely used in combined-cycle power plants and industrial waste heat recovery systems to improve overall thermal efficiency.

Q: What HRSG products does MEEM manufacture?

A: MEEM produces finned tubes, headers and manifolds, harps and platens, and fully shop-assembled HRSG modules including economizers, evaporators, superheaters and reheaters.

Q: What materials does MEEM use for HRSG components?

A: MEEM works with carbon steel, low-alloy steel, stainless steel and nickel alloys, selected according to operating temperature, pressure and corrosion conditions.

Q: What standards do MEEM's HRSG products comply with?

A: MEEM designs and manufactures HRSG components in accordance with ASME Section I and ASME Section VIII Division 1 and 2.

Q: Can MEEM deliver pre-assembled HRSG modules?

A: Yes. MEEM provides shop-assembled modules that reduce field installation time by up to 40% and lower total installed cost.

Heat Recovery Steam Generator