Methanol Bunkering Transfer Rate, Hose Pressure Drop, ESD/ERS & Bunkering Time Tool

Methanol transfer rate, hose hydraulics, tank capacity, ESD continued flow, ERS exposure and bunkering time

Methanol Bunkering Transfer Rate, Hose Pressure Drop, ESD/ERS & Bunkering Time Tool

Screen a planned methanol bunker transfer in seconds. Simple mode checks quantity, receiving capacity, requested rate, hose velocity, Darcy pressure loss, pump-pressure margin, hose pressure rating, post-ESD continued transfer and total pumping time. Advanced adds the full transfer route, tank high-high buffer, hose test relationships, vapour return, ESD sequence, ERS spill exposure and operational readiness.

↑

Need much more depth? Click Advanced above. Add the full pressure-drop route, high-high tank buffer, hose certification, vapour return, detailed ESD timing, ERS spill exposure and readiness checks.

Simple Methanol Bunkering Screen

Ten inputs answer the core question: can the requested quantity move through the entered hose at the requested rate without exceeding the receiving capacity, approved rate, pump-pressure envelope, hose rating or post-ESD volume margin?

Requested methanol bunker quantitytonnes.

Methanol densitykg/m³ at representative bunkering temperature.

Available receiving capacitym³ available up to the approved operational filling limit.

Requested bulk transfer ratem³/h.

Approved maximum transfer ratem³/h, lowest approved ship / source / skid limit.

Hose / loading-arm lengthm representative liquid path.

Hose / arm internal diametermm.

Available pump discharge pressurebar(g) at the intended operating point.

Hose / transfer-system MWPbar(g), use the lowest applicable working-pressure rating.

Effective ESD isolation delayseconds of equivalent full-rate continued transfer after ESD trigger.

Receiving Tank & Transfer Limits

Advanced uses explicit tank filling levels and separate source, receiving-ship and metering limits.

Requested methanol bunker quantitytonnes.

Methanol densitykg/m³.

Dynamic viscositymPa·s.

Tank group gross volumem³.

Starting tank filling% gross volume.

Planned end filling% gross volume.

High-high automatic shutdown level% gross volume.

Maximum permitted filling limit% gross volume.

Requested bulk transfer ratem³/h.

Delivering facility maximumm³/h.

Receiving ship maximumm³/h.

Meter / skid maximumm³/h.

Simultaneous liquid connections

Maximum rate per hose / armm³/h each.

Maximum preferred liquid velocitym/s, project / OEM criterion.

Pressure-Drop Route Register

Build one representative path from the delivering pump to the receiving tank. Flow share lets common segments carry 100% while parallel branches carry only their share.

Length m	ID mm	Roughness mm	Minor K	Elevation m	Flow share %

Pump, Hose & Pressure Envelope

Available pump discharge pressurebar(g).

Receiving tank / vapour-space pressurebar(g).

Additional manifold backpressurebar beyond explicit route K values.

Pump hydraulic efficiency%.

Hose specified MWPbar(g).

Hose hydrostatic test pressurebar(g).

Hose prototype burst pressurebar(g).

Receiving transfer-system MAWPbar(g).

Pressure-surge planning allowance% above steady required discharge. Planning input, not a transient analysis.

Vapour Return & ESD Sequence

Vapour-flow design factor% of incoming liquid volumetric rate for this screening model.

Vapour-return internal diametermm.

Maximum vapour-line velocitym/s project / OEM criterion.

Detection / communication delays at full flow.

Pump trip / rundown equivalent delays at full flow.

Remote shutdown-valve closure times.

Average flow during valve closure% of full flow.

ERS / Break-Away Exposure

Liquid length trapped between isolation pointsm.

Vulnerable-line internal diametermm.

Dry-break / ERC retained-liquid effectiveness% of trapped inventory retained / captured.

ERS separation time after ESD signals.

Residual flow if separation precedes isolation% of bunker flow during remaining isolation interval.

Dedicated spill-collection capacitylitres.

Bunkering Schedule

Pre-transfer checks / connection timeminutes.

Ramp-up timeminutes.

Volume handled in topping mode% of planned volume.

Topping rate% of safe bulk rate.

Post-transfer drain / inert / disconnect timeminutes.

Methanol Bunkering Readiness

Transfer-system compatibility verifiedHoses, couplings, seals, pumps, meters and materials are approved for methanol service. Dry disconnect and break-away / ERC verifiedConnection and emergency release arrangement match the approved transfer-system philosophy. Ship-shore ESD communication testedAutomatic / manual ESD link and remote shutdown functions have been demonstrated. High and high-high protection testedIndependent high-high sensor and automatic shutoff are function-tested. Drain / inert / gas-free procedure verifiedTransfer lines can be safely drained and handled after transfer. Risk assessment and bunker checklist readySafety zone, communications, PPE, firefighting and emergency response are addressed.

Engineering screen only: this calculator does not replace the approved pump curve, transient surge / water-hammer analysis, class approval, HAZID / HAZOP, ERS certification, ESD functional-safety verification, tank filling-limit approval, hazardous-area study or port authorization. Use actual vessel, terminal, supplier, OEM, class, flag and port limits for the operation.

Reference basis: ISO 22120:2026 covers methanol bunkering transfer systems, operational procedures, risk assessment, safety protection and personnel training. IMO MSC.1/Circ.1621 addresses methanol-compatible bunker hoses, dry-disconnect and safety break-away arrangements, draining, inerting / gas freeing, ship-shore ESD communication, remote shutdown valves, spill management and independent high-high overfill protection. For ship-carried bunker hoses, the IMO interim guidance states specified MWP should not be less than 1 MPa gauge, new hose lengths should be hydrostatically tested to at least 1.5 times specified MWP subject to the burst-pressure limit, and prototype burst pressure should be at least five times specified MWP. ISO 22120:2026 · IMO Future Fuels Safety Guidelines

Generated by ShipUniverse.com

By the ShipUniverse Editorial Team — About Us | Contact

Explore our latest intelligence radars

Methanol Bunkering Transfer Rate, Hose Pressure Drop, ESD/ERS & Bunkering Time Tool