Risk + Safety + AMC

QRA Study

Quantitative consequence + frequency analysis for plot plan and siting decisions.

Where do you locate the new control room relative to the cracker? What's the safe separation between the LNG tank and the road? Is the existing fire-water capacity adequate for the worst case? QRA quantifies it · consequence modelling, dispersion analysis, individual + societal risk contours. F&EI, PHAST, FLACS as the engine. Decision-grade evidence.

25 marquee operators · 21 countries · verified roster
Bayer · Pfizer · TATA · Adani · JSW · ISRO · Siemens · Bosch · DuPont · Mahindra · Hindalco · and others
Bayer
Pfizer
TATA
Adani
JSW
Nestle
ISRO
Mahindra
Siemens
Bosch
DuPont
Aditya Birla
Hindalco
Amazon
Indian Oil
ITC
Asian Paints
Dr. Reddy
Kia
Bureau Veritas
Lloyd
Halliburton
Jindal Steel
AMNS
Rolls Royce
Bayer
Pfizer
TATA
Adani
JSW
Nestle
ISRO
Mahindra
Siemens
Bosch
DuPont
Aditya Birla
Hindalco
Amazon
Indian Oil
ITC
Asian Paints
Dr. Reddy
Kia
Bureau Veritas
Lloyd
Halliburton
Jindal Steel
AMNS
Rolls Royce
Why this matters

Why qualitative safeguarding leaves siting and capex decisions unanchored

HAZOP and LOPA tell you whether process safeguards are adequate. QRA tells you what happens when they fail · the dispersion footprint of an LNG release, the thermal radiation contour of a jet fire, the overpressure profile of a VCE. These results drive plot plan decisions (control room siting, building separation, mustering point location), siting decisions (LNG terminal next to residential? Refinery boundary clearance?), and capex justification (fire-water capacity, blast-resistant building envelope). QRA is the decision-grade quantitative tool that makes these conversations evidence-based.

Method

How we deliver QRA Study

CEng MIE India-signed deliverables · LiDAR-powered where applicable · digital twin handover ready · routes to the Risk + Safety + AMC practice lead within 24 hours.

01

Inventory + hazard identification

Inventory of hazardous materials. Release scenarios identified per HAZOP / past incidents.

02

Frequency analysis

Initiating event frequencies per OREDA / Cox-Type / Lees / your incident history. Probability of ignition + meteorological conditions applied.

03

Consequence modelling

Dispersion (PHAST / FLACS CFD where geometry matters), jet fire (thermal radiation), pool fire, BLEVE, VCE (vapour cloud explosion). Frequency × consequence per scenario.

04

Individual + societal risk

Individual Risk Per Annum (IRPA) contours computed. Societal risk F-N curves. Compared to tolerable risk criteria (HSE UK ALARP, OSHA PSM, your corporate criteria).

05

Recommendations + sign-off

Risk reduction options ranked. Plot plan / siting recommendations. CEng MIE-signed. Ready for board / regulatory submission.

Standards + compliance

Built to the standards your auditors quote

Reports reference the international and national standards your regulators, F500 audit teams, and corporate process safety leads cite. Every deliverable signed by a Chartered Engineer (CEng MIE India).

Anonymous case anchors

What this looks like in production

Three anonymised engagements from our verified roster · quantified outcomes, no client names disclosed without written permission.

LNG terminal, Qatar · siting QRA

New jetty location · QRA-evaluated against existing residential boundary. F-N curve compared to HSE ALARP region. Siting approved with mitigation.

Refinery, India · control room siting

New control room location QRA-evaluated against worst-case VCE overpressure. Blast-resistant envelope specified to API RP 752.

Petrochem, KSA · boundary clearance audit

Existing plant boundary clearance audited against new residential development. QRA evidence supported regulatory case.

Frequently asked

QRA Study · the practical questions

PHAST or FLACS · what tool do you use?
PHAST (consequence + dispersion · industry-standard for plot plan QRA) for most engagements. FLACS (CFD-based · captures congestion-driven explosion overpressure) when the geometry matters · congested process plant VCE, building leakage, complex terrain dispersion.
What output formats do you produce?
Risk contour maps (individual risk), F-N curves (societal risk), consequence footprints overlaid on plot plan, comparison vs tolerable criteria. Board-ready visualisation + technical report. CEng MIE-signed.
Can QRA be used for siting decisions?
Primary use. New plant siting (greenfield), new building siting on existing plot, change of land use near existing plant. QRA evidence supports board, regulatory, and community engagement decisions.
How does QRA interact with HAZOP + LOPA?
HAZOP identifies scenarios. LOPA evaluates safeguard adequacy. QRA quantifies the consequence and societal impact of residual scenarios. Three connected layers · we deliver them together in major project safety case work.
Is QRA accepted by Indian regulators?
Yes · CER (Central Excise and Regulatory authorities) for petrochemicals, PESO for hazardous storage, MoEF for environmental clearance. The QRA output is standard evidence in EIA / safety case submissions.

Scope your QRA Study engagement.

Tell us your plant, region, and scope · a named Chartered Engineer responds within 24 hours.

  • 4 fields. No phone interview to start.
  • Per-discipline routing to the Risk + Safety + AMC practice lead.
  • Anonymous case anchors sent with first reply.
  • Same-day callback for deadline-driven enquiries.

Risk + Safety + AMC Scoping

HAZOP/LOPA/SIL/QRA · 5-year AMC retainer · Practice Lead Safety responds in 24 hr.

HAZOP · QRA · SIL · Arc Flash · 5-Yr AMC · VB Engineering
HQ HYDERABAD · IST
OPS HOUSTON · CT
SIGN IEC 61511 · NFPA 70E
HAZOP · QRA · SIL · ARC FLASH · AMC

Risk + Safety
+ 5-Year AMC

HAZOP · QRA · SIL · Arc Flash · OISD + PESO + OSHA + Factories Act.

Process safety, electrical safety and a 5-year AMC retainer under one practice. HAZOP chair, QRA modelling in PHAST + Safeti, LOPA + SIL determination to IEC 61511, arc flash hazard analysis to NFPA 70E (2024) + IS 13234, OISD + PESO + OSHA PSM + Factories Act safety audits. Hyderabad HQ chairs the HAZOP, Houston Operations services US OSHA PSM and Process Hazard Analysis renewals.

India HQ · Hyderabad
VB Engineering · India
Hyderabad · Analytical Hub
+91 (40) XXXX-XXXX
IST · UTC+5:30
9 site offices for field mobilisation across India.
USA Operations · Houston
VB Engineering · USA
Houston, Texas · Operations
+1 (713) XXX-XXXX
CT · UTC-6 / -5
Gulf Coast field response. NA client servicing entity.
0+HAZOPs Chaired
0+Arc Flash Studies
IEC 61511SIL Framework
0Safety Engineers
5-Yr AMCRetainer Option
8 Sub-Services

Eight programs. One risk + safety + AMC package.

Eight programs spanning process safety, electrical safety and the long-tail 5-year AMC retainer. Every deliverable signed off by a staff Chartered Engineer or PE before client release. Audit-ready for OISD, PESO, OSHA PSM and Factories Act regimes.

01

HAZOP Studies

HAZOP chair + scribe + node lead. IEC 61882 methodology. OISD-118 / OSHA PSM compliant.

IEC 61882OISD-118OSHA PSM
02

QRA + Consequence

Quantitative Risk Assessment in PHAST + Safeti. Dispersion, flammable, toxic, BLEVE.

PHASTSafetiOISD-145
03

LOPA + SIL Determination

Layer of Protection Analysis. SIL determination to IEC 61511 / 61508. SIF design review.

IEC 61511IEC 61508LOPA
04

Arc Flash Hazard Analysis

IEEE 1584-2018 + NFPA 70E (2024) + IS 13234. Hazard labels printed and installed.

IEEE 1584NFPA 70EIS 13234
05

Safety Audits

OISD / PESO / OSHA / Factories Act statutory safety audits. Gap analysis and closure plan.

OISDPESOOSHA
06

Pre-Startup Safety Review (PSSR)

PSSR chair for greenfield + brownfield. Punch list ownership through to MoC closure.

PSSRMoCOSHA PSM
07

Emergency Response + ERP

Emergency Response Plan, on-site / off-site, drill calendar. NDMA + EPA + OISD-153 aligned.

NDMAOISD-153EPA
08

5-Year AMC Retainer

Annual HAZOP refresh, arc flash update, SIL recertification, audit support, retained Chartered Engineer.

AMCRetainerRefresh
Standards Stack

International + India + USA. All cited side-by-side.

Service Hubs are country-neutral. Deliverables stamped to the standard that the receiving plant operates under, drawn from the international technical core, Indian statutory + BIS, and US codes.

International Technical
IEC 61511IEC 61508IEC 61882IEEE 1584-2018ISO 31000ISO 45001PHASTSafeti
India Statutory + BIS
OISD-118OISD-145OISD-153IS 13234PESO Petroleum RulesFactories ActNDMA
USA Codes + Standards
NFPA 70E (2024)OSHA 1910.119 (PSM)OSHA 1910.269EPA RMPNFPA 70 (NEC)ANSI Z535
Verified Client Roster Anchors

Working alongside 63 verified operators

TATAJSWAMNSJindal SteelHindalcoAditya BirlaAdaniIndian OilIOC LNGGraceDuPontHalliburtonPfizerBayerDr. Reddy'sSyngeneAurobindoHeteroAmnealNatcoJubilantNestléCoca-ColaITCAsian PaintsCargillCortevaSyngentaFMCMonsantoNavin FluorineBoschSiemensEmersonVertivAmazonHCLMahindraKiaTVSIngersoll RandSandvikRolls-RoyceISRONEEPCOOPGCACMEReNew PowerBureau VeritasLloyd's RegisterQAFACQatalumNOMACTabreedDalmiaCalderysBirlaTATAJSWAMNSJindal SteelHindalcoAditya BirlaAdaniIndian OilIOC LNGGraceDuPontHalliburtonPfizerBayerDr. Reddy'sSyngeneAurobindoHeteroAmnealNatcoJubilantNestléCoca-ColaITCAsian PaintsCargillCortevaSyngentaFMCMonsantoNavin FluorineBoschSiemensEmersonVertivAmazonHCLMahindraKiaTVSIngersoll RandSandvikRolls-RoyceISRONEEPCOOPGCACMEReNew PowerBureau VeritasLloyd's RegisterQAFACQatalumNOMACTabreedDalmiaCalderysBirla

Marquee discipline: VB Engineering markets only brands from the 63 Verified Client Roster. Case studies anonymised under NDA.

Anonymised Engagements

Three studies. Three audit outcomes.

Representative engagements across the global delivery footprint. Client names withheld under NDA.

RefineryWestern IndiaHAZOP + LOPA

Tier-1 Refinery · CDU + VDU HAZOP Refresh + LOPA Closure

A major refining client required a 5-year HAZOP refresh on CDU + VDU units, with LOPA-driven SIL recommendations rolled into the SIS upgrade scope. OISD-118 alignment with full node-by-node revalidation.

Outcomes
HAZOP nodes revalidated184 nodes
LOPA scenarios reduced12 new SIFs
SIL determination4 SIL-2, 1 SIL-3
OISD-118 audit clearedFirst pass

Client name withheld · representative of multiple engagements in this category

Data CentreUSA Gulf CoastArc Flash + NFPA 70E

Hyperscale Data Centre · Arc Flash Study + NFPA 70E (2024) Labelling

A hyperscale operator required arc flash hazard analysis across a 14 MW campus, with NFPA 70E (2024) compliant warning labels printed and installed. IEEE 1584-2018 calculations validated against ETAP model.

Outcomes
Arc flash bus analysed412 buses
Labels installed412 NFPA 70E labels
PPE category mappedCat 2 / 3 / 4 zones
PE-stamped reportIssued Houston entity

Client name withheld · representative of multiple engagements in this category

PharmaGCC5-Yr AMC

GCC Pharma Campus · 5-Year AMC Retainer + Annual HAZOP Refresh

A GCC pharma campus engaged the 5-year AMC retainer covering annual HAZOP refresh, arc flash recalculation under load growth, SIL recertification, OISD-equivalent safety audit support, and on-call Chartered Engineer access for incident response.

Outcomes
HAZOP refresh cadenceAnnual, on schedule
Arc flash recalcTriggered by load > 8% growth
SIL recertificationYear 3 closed
Audit support tickets27 resolved

Client name withheld · representative of multiple engagements in this category

FAQ

8 questions. 8 straight answers.

What is included in the 5-year AMC retainer?

+

Annual HAZOP refresh, arc flash recalculation when load grows above 8% or topology changes, SIL recertification at year 3, OISD / PESO / OSHA audit support, on-call Chartered Engineer access for incident response (24-hour SLA), and pre-startup safety review chairing for any in-period brownfield modification.

Which arc flash standards do you cite?

+

IEEE 1584-2018 for arc flash incident energy calculation, NFPA 70E (2024) for the workplace electrical safety requirements and warning label format, IS 13234 for India statutory equivalent, and IEC 61482 for arc-rated PPE selection. Calculations validated against the ETAP power system model.

Are HAZOPs chaired by a CEng MIE or PE?

+

Yes. India HAZOPs chaired by a staff CEng MIE India. US OSHA PSM Process Hazard Analyses chaired through the Houston entity by a PE-credentialed safety lead. International (GCC + EU + AUS) engagements chaired by a CEng who carries the equivalent local recognition.

What SIL framework do you use?

+

IEC 61511 (process sector) + IEC 61508 (electronic / electrical / programmable electronic safety systems). LOPA is the primary SIL determination methodology, with risk graph as a screening tool. Fault tree analysis for SIL-3 systems and above.

Do you handle OISD, PESO, OSHA PSM and Factories Act audits?

+

Yes. OISD-118 (process plant safety), OISD-145 (Hazard Identification and Risk Analysis), OISD-153 (emergency response), PESO Petroleum Rules 2002, OSHA 1910.119 PSM, EPA RMP, and Factories Act statutory inspections are all in scope. Audit support is the most-used line item in the 5-year AMC retainer.

How long does a typical engagement run?

+

Single-unit HAZOP: 3 to 5 weeks. Full plant HAZOP refresh: 6 to 10 weeks. Arc flash study: 4 to 8 weeks. QRA: 6 to 10 weeks. LOPA + SIL: 4 to 6 weeks. Safety audit: 2 to 4 weeks. 5-year AMC retainer: 60 months with quarterly cadence reviews.

Is the AMC retainer a fixed annual fee?

+

Yes. The 5-year AMC retainer is a fixed annual fee covering all routine deliverables (HAZOP refresh, arc flash recalc, SIL recert, audit support). Out-of-scope incident response or brownfield modification PSSR work is invoiced separately at retainer-discounted day rates.

Do you handle both process safety and electrical safety in one engagement?

+

Yes. The practice runs an integrated bench. HAZOP, QRA, LOPA and SIL on the process side. Arc flash, short-circuit, protection coordination and NFPA 70E / IS 13234 on the electrical side. Same Chartered Engineer leadership across both for refineries, pharma and data centres where the two regimes overlap.

Country Variants

Need the country-specific build? Jump to the variant.

This Service Hub is country-neutral. For India statutory CEng MIE deliverables or US PE-stamped deliverables, the country variants carry the full local stack.

Scope your plant. HAZOP + Arc Flash + AMC. Stamped.

Tell us the asset, the audit cycle, and whether you need a one-shot study or a 5-year retainer. We respond within one working day with a scope, fee envelope, and the right country-team handoff plan.

Global Delivery · Two Hubs

VB Engineering

India HQ
Hyderabad · Analytical Hub
+91 (40) XXXX-XXXX
IST · UTC+5:30
USA Operations
Houston, Texas
+1 (713) XXX-XXXX
CT · UTC-6 / -5
Risk + Safety Engagement Request

Scope your plant