Liquid Dynamics - Pulsation Analysis, Diagnostics, and Software Models

Pulsation Analysis and Diagnostics,
Removing the Mystery - "Exposing the Witchcraft"
In graphics and cartoons
Being equipped to discuss the problem, and understand the answers.

A. Shaking the pipe generates pressure pulses.

B. How to turn pressure waves instead of reflecting them.

C. Transient dissipation. Acoustic Volumes.

D. Reduce pipe sizes.

E. Diameter changes are points of reflection.

F. Be careful of orifices.

Pressure VELOCITY - 3600mph, goes a mile in a second. Mass flow only 15 mph. How resonant pressure AMPLIFICATION can occur.

The vital importance of LARGE DIAMETER. Why pressure changes must pass into flow - not go passed any attenuator.

Pumps, with one exception, are not the cause of shock, surge or pulsation pressures. HARD arteries and PIPES kill people and pumps.

Gauges are "PRESSURE INDICATORS". That is why the symbol is Pl. They can only indicate dynamic activity, gauges can not measure it.

SUCTION SUPPLY LINE PROBLEMS. When starting flow in a pipe to a pump, and repetitively in the case of a reciprocating machine.

Preventing supply piping from destroying a pump. TWO DO'S TWO DON'TS. Decoupling system response from negative spike excitation.

"CONTROLLERS", Back pressure valves, Relief Valves, and Check valves, all disrupt mass flow and so the pressure equilibrium.

Synopsis overview. Flow is like the tide, it rises and falls. Pressure is like the waves, they do the damage by repeatedly hammering.

CATALOG PAGES in PDF
PUBLICATION 1
Go to Entire Catalog

Page 1 - Pub. 1 Familiarization Cover	PDF 1
Page 2 - Familization A, B, C.	PDF p2
Page 3 - Familization C, D, E, F.	PDF p3
Page 4 - Pressure volume & amplifiers	PDF p4
Page 5 - Pulse interception	PDF p5
Page 6 - Hard system destroy pumps	PDF p6
Page 7 - Data capture at kHz.	PDF p7
Page 8 - Suction supply line problems	PDF p8
Page 9 - 2 Do's & 2 Don'ts	PDF p9
Page 10 - Brief A to Z of pulsation	PDF p10
Page 11 - "Controllers"	PDF p11
Page 12 - Synopsis, overview	PDF p12

	Liquid Dynamics International provides pipeline and pump user problem analysis, diagnostics, prediction by software, pulsation analysis, piping system analysis, and piping system simulation. For water hammer and shock solutions pulsation dampening and shock alleviating devices can be obtained from our associate websites:
	PulseGuard Inc., and Ltd. for further information about pulsation dampeners / pulsation dampers. PulseGuard.com - Pulsation Dampeners Pulsation-Dampeners.com - Pulsation Dampener PulseGuard.co.uk - Pulsation Dampers PulseGuard für Deutschland - Pulsationsdämpfer
	Shock-Guard.com and ShockGuard.co.uk to find large gas bag vessels, jumbo bladders, float separator / big bellows type pipeline shock attenuators and expansion / contraction volume compensators, surge alleviators, and shock alleviators. Shock-Guard.com - Surge Alleviators ShockGuard.co.uk - Shock Alleviators
	Accumulators-Hyd.com and Accumulators.co.uk for information about energy saving in pumping systems, standby emergency power, safety shutdown systems, hydraulic accumulators, and hydropneumatic accumulators. Accumulators-hyd.com - Hydraulic Accumulators Accumulators.co.uk - Hydropneumatic Accumulators Hydraulic and Control Engineering since 1963; See also: Hydrotrole.co.uk Services for Hydraulic and Pneumatic Equipment Recertification and HydroTrole Limited Accumulator Types
	Flow-Guard.com to find protection against excess flow. Guard against toxic spills when pipes burst, guard against gushers and fluid loss when hoses split, Flow-Guard guards against excess flow floods with flow fuses and breather bags Flow-Guard - Flow Fuses and Breather Bags