Tips and Tricks - AFT Blog

Size Up Your Options Using the ANS module

Stephanie Villars

Friday, 11 October 2019

Tips and Tricks

When working on a new piping system, there are many factors that must be taken into account: meeting customer demands, following industry standards, and maintaining effective system operation to name just a few. As a busy engineer, it is important to address all of these concerns in the short time frame available to you. AFT's new Automated Network...

Tags:

Pump System Optimization Network Sizing ANS Module AFT Arrow AFT Fathom

19 Hits

0 Comments

Looking to relieve pressure? Let's talk about Relief Valves in AFT Impulse.

Cort Hanson

Friday, 23 August 2019

Tips and Tricks

In any complex piping system, one of the most serious scenarios considered during a safety or HAZOP study is over-pressurization. If the pressure in the system reaches a high enough pressure, rupture can occur, leading to expensive repairs, significant system downtime, and even loss of life. In most cases, proper use of relief valves can mitigate o...

Tags:

Relief Valves AFT Impulse

244 Hits

0 Comments

Applying Communication Time: Let’s Talk About Your Impulse Result/Event Relationships

Devin Rorabaugh

Wednesday, 14 August 2019

Tips and Tricks

I have received questions from clients using AFT Impulse where they ask something like "I closed this valve. Why is the maximum pressure spike way over there and not at the valve?" This comes from years of developing a "common sense" adapted to steady-state flow. With steady flow, a change between states of equilibrium has a local effect tha...

Tags:

Impulse output communication time transient events surge waterhammer AFT Impulse

239 Hits

0 Comments

Two for One: How Dependent Design Cases Help Automatically Size Networks to Satisfy Multiple Operating Scenarios

Nick Vastine

Friday, 12 July 2019

Tips and Tricks

With the recent release of the Automated Network Sizing (ANS) module for AFT Fathom and the upcoming release for AFT Arrow , network sizing has never been easier. The ANS module utilizes Intelliflow , a technology previously featured in AFT Mercury and Titan, to evaluate slight design deviations to automatically size pipes, valves, and pumps for a ...

Tags:

Dependent Design Cases Scenario Management design process ANS Module AFT Fathom AFT Arrow

159 Hits

0 Comments

Applying the Improved ATKF Method for Laminar and Non-Newtonian Flow

Stephanie Villars

Monday, 17 June 2019

Tips and Tricks

If you have worked with Non-Newtonian fluids or low velocity systems in AFT Fathom or AFT Impulse before, then it is likely that you have worked with the Adjusted Turbulent K Factor (ATKF) method before. The ATKF method can be used to adjust K factor data developed for turbulent flow conditions to better predict loss in the laminar f...

Tags:

Slurries non-Newtonian fluid laminar flow ATKF AFT Impulse AFT Fathom

277 Hits

0 Comments

And, Not, Or - Starting Transient Events with Complex Logic

Scott Lang

Wednesday, 22 May 2019

Tips and Tricks

AFT Fathom XTS and AFT Impulse have long been able to start events like pump trips or valve closures when a certain condition is met in the system. For example, a valve can close when a tank is full, or a pump can trip when the flow is too low. However, complex systems often have multiple conditions that can cause an event. The pump may trip when the flow is too low OR the suction pressure is too low. The valve may only close when two tanks are full. AFT Fathom version 10 and AFT Impulse version 7 enhance the transient capabilities to allow the definition of these complex Multi-Condition Events.

Tags:

Multi-Condition Event AFT Fathom 10 AFT Impulse 7 AFT Impulse AFT Fathom XTS

385 Hits

0 Comments

You Should Combine Your Pipes

Ben Keiser

Wednesday, 17 April 2019

Tips and Tricks

One of the many powerful features in AFT Impulse is the ability to calculate transient forces during a waterhammer/surge event (See " Evaluating Dynamic Loads in Piping Systems Caused by Waterhammer " white paper). The resulting transient forces can be exported into a pipe stress analysis software. Pipe stress analysis care about what the tr...

Log in

AFT Blog