EngiMetric

Stage 7 of 15 / Calculation

Screen compression and gas conditioning

Estimate multi-stage compression power and keep conditioning auxiliary power explicit.

  • Advanced
  • 15 stages
  • 16 min
  • Process and energy systems
In development Green Hydrogen Plant
Draft development workbench (noindex). These stages are exercisable on a direct development route for learning and review. The journey remains a draft: not published, excluded from search/sitemap by existing protections, and not independently engineering-approved. Quantitative outputs are screening/educational where implemented and must not be treated as certified design, OEM guarantees, project approval, or bankable results.
Professional review required.Engines and workbench are implemented for draft development use. Defaults, sources, heating-value basis and engineering assumptions still require independent review. The journey must not be published or sitemap-indexed from this phase. Current verification state: Needs engineering review.

After this stage you can

Learning objectives
  • Calculate stage ratio, ideal work, shaft power and electrical power.
  • Keep compression kW distinct from conditioning kW.
  • Check per-stage ratio and discharge temperature against screening limits.

The engineering

Ideal stage work uses hydrogen as an ideal gas with a stated heat-capacity ratio and gas constant, equal pressure ratios and perfect intercooling back to the inlet temperature. Isentropic and motor efficiencies convert that work into electrical demand.

Conditioning (drying, purification, pressure-drop make-up) is a separate kilowatt input. It is added to compressor electrical power for the conditioning total, and both appear separately in the plant energy balance.

This is not a compressor map. Outlet temperature is a stage-discharge estimate before intercooling. Hazardous-area classification, hydrogen embrittlement and relief design require specialist review.

EngiMetric / green hydrogen educational workbench

Green Hydrogen Plant — Educational Screening Workbench

Loading the hydrogen project state...

Draft development workbench (noindex). Inputs are saved in this browser only. Calculations shown are screening/educational outputs from the existing model where implemented; missing or unsupported quantitative areas remain explicit. Completing stages records self-declared learning progress only — it is not quantitative engineering capability, not an OEM guarantee, and not industrial/project approval.

Stage

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Inputs

Saved in this browser

Edit the screening inputs for this stage, then calculate. Values you enter are marked as user-entered in the local project state; defaults remain illustrative until replaced.

Screening results

Educational model output

Results come from the existing hydrogen screening model. Unsupported quantitative areas, missing evidence, and review requirements remain explicit; outputs are not certified design or approval decisions.

Process & balance context

Textual screening views

This educational workbench presents stage-specific calculated outputs and limitations. Detailed interactive diagrams are not required for journey completion; use the stage results and assumptions panels to review boundaries, flows, energy, storage, and economics context.

Assumptions, limitations & review

From journey definition

Your deliverable for this stage

Capstone evidence

A compression and conditioning power statement at the delivery pressure.

Stage assumptions, limits and sources

Provenance

Assumptions

  • Inlet pressure is 1.013 bar. Delivery pressure is the compressor outlet.
  • Intercooling returns the gas to the stated inlet temperature every stage.

Constraints

  • Stage count is a whole number from 1 to 8.

Limitations

  • No compressor map, seal leakage, valve loss or aftercooler duty.
  • No hazardous-area, materials or relief-system design.

Review status

  • Needs engineering review
  • Professional review is required before publication or use as a design basis.

Stage progress is stored in this browser only. The explanation and every limit on this page remain readable with JavaScript disabled; the calculators need it to run.

Stage kind: Calculation / Journey: green-hydrogen / Stage: compression