SOLUTIONS

Heat recovery steam generators (HRSG)

Delham is the manufacturer and supplier for this project-configured equipment. Final capacity, design conditions and configuration are established from verified process data, applicable codes and the agreed supply boundary.

Typical engineering scope

Design-basis and supply-boundary definition
Process and major-equipment definition
Mechanical, piping, electrical and instrumentation coordination
Code and material review
Fabrication, testing and document review
Installation and commissioning support within contract scope

ENGINEERING DELIVERY FRAMEWORK

From a defined duty to an operable handover

Each package is treated as an integrated system—not a collection of isolated equipment. Process, mechanical and control decisions remain connected through traceable, reviewable deliverables.

Design basis & simulation

Freeze the design basis, operating cases, feed composition, normal and turndown capacity, ambient conditions and battery limits before detailed engineering. Mass-and-energy balances, equipment sizing and hydraulics are developed from verified inputs.

Process safety & operability

Review PFDs and P&IDs; support HAZID and HAZOP; define cause-and-effect, ESD and blowdown requirements, maintainability access and control philosophy to reduce commissioning and operating risk.

Multidiscipline engineering control

Coordinate process, mechanical, piping, structural, electrical and instrumentation deliverables through a document register, interface control, comment resolution and disciplined change tracking through final and as-built issue.

Technical procurement & fabrication

Prepare datasheets and material requisitions, evaluate bids, review vendor documents, define ITP hold and witness points, control materials, inspect fabrication and track NCRs to closure.

Commissioning readiness

Define mechanical completion, pre-commissioning check sheets, test packs, cleaning and leak testing, loop and logic verification, start-up support and performance testing.

Lifecycle handover

Compile the manufacturing data record, operating and maintenance manuals, recommended spares, lessons learned and a traceable handover dossier for the operator.

Technical Datasheet

Technical Datasheet — Heat recovery steam generators (HRSG)

The values are two distinct published CHP project examples, not one HRSG product range. Total thermal output is stated at plant level and must not be mistaken for HRSG steam duty.

Published values apply only to the cited equipment family and stated scope; they are not universal code limits or a Delham rating/guarantee.
Parameter	Published value	Reference basis	Applicability / limit
Natural-gas CHP live-steam example	17.5 bar; 242 °C	Published steam conditions for one CHP project; plant maximum heat output was 40 MWth.	Project example only; the 40 MWth plant value is not an isolated HRSG rating.
Biomass CHP live-steam example	120 bar; 520 °C	Separate published biomass CHP project; plant maximum heat output was 35 MWth.	Do not combine with the natural-gas case to imply a common HRSG envelope; gas turbine/boiler exhaust and steam-cycle design govern.
HRSG design basis needed	Gas-turbine exhaust flow, temperature and load cases	Published engineering descriptions identify HRSG output as dependent on the upstream gas turbine and steam cycle.	No universal steam-capacity range is inferred from plant gross output; obtain OEM exhaust curves and define supplemental firing/duct-burner cases.

Published technical source