Question 1

What's the main difference between TekRisk and PHAST?

Accepted Answer

While PHAST is a desktop application requiring expensive licenses and installation, TekRisk is a cloud-based platform accessible from any browser. Both offer similar consequence modeling capabilities (pool fire, jet fire, fireball, VCE, dispersion), but TekRisk provides this at a fraction of the cost with modern collaborative features.

Question 2

Can I import my PHAST projects into TekRisk?

Accepted Answer

TekRisk uses its own project format, but you can easily recreate your scenarios. Our intuitive interface makes it quick to set up equivalent analyses. Many users find they can recreate their key scenarios in less time than they spent learning PHAST.

Question 3

Are TekRisk calculations as accurate as PHAST?

Accepted Answer

TekRisk implements published methods: SLAB (Lawrence Livermore National Laboratory) for dense gas dispersion, the TNO Yellow Book for physical effects and TNO Green Book and Eisenberg probits. For a vertical LPG jet fire, TekRisk reproduces a real Phast 6.7 report within 2 % in flame geometry and ground-level radiation. The cases, their deviations and the models not yet benchmarked are listed on the model validation page (tekrisk.com/en/docs/validation).

Question 4

Does TekRisk offer migration support?

Accepted Answer

Yes! Our team can help you transition from PHAST to TekRisk. We offer training sessions and documentation to help you get up to speed quickly. Most users are productive within the first day.

Feature	TekRisk	PHAST	Advantage
Cloud-Based	Included	Not included	TekRisk Advantage
No Installation Required	Included	Not included	TekRisk Advantage
Multi-Language Support	Included	Not included	TekRisk Advantage
Pool Fire Model	Included	Included	Equal
Jet Fire Model	Included	Included	Equal
Fireball / BLEVE	Included	Included	Equal
Vapor Cloud Explosion (VCE)	Included	Included	Equal
Flash Fire	Included	Included	Equal
Toxic Dispersion	Included	Included	Equal
Interactive Maps	Included	Not included	TekRisk Advantage
Real-Time Collaboration	Included	Not included	TekRisk Advantage
PDF Reports	Included	Included	Equal
Pricing	$29-59/mo	$5,000+/yr	TekRisk Advantage
Free Tier Available	Included	Not included	TekRisk Advantage
Chemical Database	+1300	+1500	Advantages PHAST
3D Visualization	Not included	Included	Advantages PHAST

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TekRisk vs PHAST: Feature Comparison

Frequently Asked Questions: PHAST vs TekRisk

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