aluminum plate-fin heat exchanger thermal fatigue study

Details. Title: Aluminum Plate-Fin Heat Exchanger Thermal Fatigue Study. Author / Creator: Swain, R. / Miller, A.C. / American Institute of Chemical Engineers. Conference: 23rd, Ethylene producers' conference; topical conference at the 2011 AIchE Spring meeting and 7th global congress on process safety; 2011; Chicago, IL. Published in: Ethylene ...

Authors: Plate fin heat exchangers, commonly referred to as brazed aluminum heat exchangers (BAHX), are widely used in cryogenic fractionation and processing because of their high thermal efficiency and reliability, compared to other heat exchanger types. Applications include air separation, natural gas liquefaction, nitrogen rejection, natural ...

The present paper describes a study for the application of Aluminum Brazed Plate Fin Heat Exchangers (PFHE) in a floating environment. Due to the continuous movements of the ship hull a main focus is given to fatigue considerations because it is well known that aluminum does not have a distinct endurance limit.

The Brazed Aluminum Plate Fin Heat Exchanger Manufacturers’ Association (ALPEMA) recommends not to exceed the rate of temperature change across any heat exchanger pass beyond 2°C/min or 60°C/hr, as high thermal stresses can damage the aluminum cores. 1 If stream temperature changes are cyclic or recurring, then the allowable rate of temperature must be less than 1°C/min to prevent thermal fatigue.

“When we reduce thermal stress we can significantly extend the lifetime of heat exchangers,” says Dr. Reinhold Hölzl, senior expert for structural mechanics at Linde. However, no one-size-fits-all solution for this exists, as every plant and each heat exchanger is unique. Here, an interdisciplinary team of Linde experts has an answer.

A numerical simulation and experimental study of heat transfer, fluid flow and fins mechanical property on plate-fin heat exchanger has been presented in this paper. The methods used in this study are experiment, CFD analysis, fluid–structure interaction and finite element method. An air–oil wind tunnel is established for this experiment. The temperature difference, pressure drop ...

Plate-fin heat exchangers, commonly referred to as brazed aluminum heat exchangers (BAHXs), are widely used in cryogenic fractionation and processing compared to other heat exchanger types because of their high thermal efficiency and reliability. Applications include air separation, natural gas liquefaction, nitrogen rejection, natural gas ...

A plate fin heat exchanger (PFHE) is one type of multi-stream heat exchanger that is also known as a brazed aluminum heat exchanger (BFHE). The layers are manufactured by brazing in a furnace and separated from each other by metal plates and a specified configuration of fins.

Aluminium Plate-Fin Heat Exchanger Manufacturer’s Association (ALPEMA), “The Standards of the Brazed Aluminum Plate-Fin Heat Exchanger Manufacturers’ Association,” 3rd Ed., 2010. GPA Midstream, “GPA technical bulletin brazed aluminum heat exchangers,” 2015.

The present paper describes a study for the application of Aluminum Brazed Plate Fin Heat Exchangers (PFHE) in a floating environment. Due to the continuous movements of the ship hull a main focus is given to fatigue considerations because it is well known that aluminum does not have a distinct endurance limit.

For the verification of a finite element based calculation procedure for the strength and fatigue design of aluminum brazed Plate Fin Heat Exchangers (PFHE) an extensive experimental investigation program was planned and executed.

An experimental study of the air-side thermal hydraulic performance of the aluminum wavy fin in heat exchanger was performed. A series of tests were conducted for 16 wavy fin samples with different geometry parameters.

Aluminum Plate-Fin Heat Exchanger Thermal Fatigue Study ... Field Repair of Brazed Aluminum Plate-Fin Heat Exchangers ... ce Tearing In Cold Box Aluminum Alloy Pipe

Develop a new informational product or incorporate into the next revision of Brazed Aluminum Plate-Fin Heat Exchangers for General Refinery Services 1st ed.; ANSI/API Standard 668 (formerly Standard 662, Part 2), guidance focused on the safe operation, maintenance, and repair of brazed aluminum heat exchangers (BAHX) to advance understanding of thermal fatigue hazards and how to mitigate them.

heat exchanger tube alloys. An abundance of fatigue data exists for other alumi-num alloy systems.[2] However, little data have so far been published on the fatigue and creep properties of wrought AA3XXX series alloys for heat exchanger applications.[3–9] The combined analysis of tensile, fatigue, and creep

demonstrated by Kim and Lee (2012) who saw that the fatigue behavior of the aluminum used in this type of heat exchanger can change with the brazing process used to assemble the coil. Their experiments showed that this change was larger than fatigue life differences predicted using popular methods.

Flexible operation of an ASU results in a high frequency of load changes for the main heat exchanger, which is typically an aluminum-brazed plate-fin heat exchanger (PFHE). Transient operating conditions like startup and shutdown can lead to thermal stress and potentially cause material fatigue and damage in PFHEs if the number of scenarios is ...

1. Hölzl, et al “Experimental fatigue evaluation of aluminum brazed plate fin heat exchangers”, ASME Pressure Vessel and Piping, 2013. 2. Hölzl, et al “Damage analysis and fatigue evaluation of an aluminum brazed plate fin heat exchanger”, ASME Pressure Vessel and Piping, 2014. 3. Hölzl, R., “Lifetime estimation of aluminum plate ...