Development of Foot Design for Gasketed Plate Heat Exchangers
(2022) MMKM05 20221Innovation
- Abstract
- In the process of making the industry more energy efficient, the gasketed plate heat exchanger has an important role as it effectively transfers heat between fluids. This master thesis aims to investigate and develop a new supportive foot for Alfa Laval’s gasketed plate heat exchangers. The goal was to present a design that can sustain severe external loads induced by for example the connecting piping system or earthquakes. Beyond sustaining the severe loads, the foot was also required to maintain a high serviceability and a low cost. The project covered in this report follows a development process where eleven different concepts were generated and scored. The most important factors in the developed concepts were cost, manufacturing, and... (More)
- In the process of making the industry more energy efficient, the gasketed plate heat exchanger has an important role as it effectively transfers heat between fluids. This master thesis aims to investigate and develop a new supportive foot for Alfa Laval’s gasketed plate heat exchangers. The goal was to present a design that can sustain severe external loads induced by for example the connecting piping system or earthquakes. Beyond sustaining the severe loads, the foot was also required to maintain a high serviceability and a low cost. The project covered in this report follows a development process where eleven different concepts were generated and scored. The most important factors in the developed concepts were cost, manufacturing, and serviceability. Two concepts emerged from the scoring and was further developed to test their feasibility. From the in-depth development one concept remained and was considered the best design. The design was then modelled in a FEM program together with an existing design to verify the stresses in the used bolts in the foot. In the verification of the design, it was concluded that the new design reduced the usage in the attached bolts in the foot by up to 67%, compared to existing designs. It was also found that preloading the bolts made the model less tolerant to the severe loads. Furthermore, adding a higher frictional coefficient to the model decreased the usage in the studied bolts. (Less)
- Abstract (Swedish)
- I arbetet med att göra industrin mer energieffektiv har packningsförsedda värmeväxlare en betydande roll då den effektivt överför värme mellan fluider. Detta exjobb ämnar at utreda och utveckla en ny stöttande fot till Alfa Lavals packningsförsedda värmeväxlare. Målet var att ta fram en design som kan klara av allvarliga externa laster genererade av till exempel ett anslutande rörsystem eller jordbävningar. Utöver att klara de alvarliga lasterna, skulle foten också bibehålla en hög servicebarhet och en låg kostnad. Projektet beskrivet i denna rapport följer en utvecklingsprocess som skapade och bedömde elva olika koncept. De viktigaste faktorerna i bedömningen var kostnad, tillverkning och servicebarhet. Två koncept togs vidare från... (More)
- I arbetet med att göra industrin mer energieffektiv har packningsförsedda värmeväxlare en betydande roll då den effektivt överför värme mellan fluider. Detta exjobb ämnar at utreda och utveckla en ny stöttande fot till Alfa Lavals packningsförsedda värmeväxlare. Målet var att ta fram en design som kan klara av allvarliga externa laster genererade av till exempel ett anslutande rörsystem eller jordbävningar. Utöver att klara de alvarliga lasterna, skulle foten också bibehålla en hög servicebarhet och en låg kostnad. Projektet beskrivet i denna rapport följer en utvecklingsprocess som skapade och bedömde elva olika koncept. De viktigaste faktorerna i bedömningen var kostnad, tillverkning och servicebarhet. Två koncept togs vidare från bedömningen för vidare utveckling och test av dess genomförbarhet. Från den fördjupande utvecklingen kvarstod sedan ett koncept som blev ansett den bästa designen. Designen modellerades sedan i ett FEM-program tillsammans med en redan existerande design för att verifiera spänningarna i bultarna i foten. I verifieringen fastslogs det att den nya designen reducerade användandet av bultarna med upp till 67% i jämförelse med den redan existerande designen. Det sågs också att förspänning av bultarna gjorde modellen mindre tålig mot de svåra lasterna. Vidare fastslogs det att ett högre friktionstal i modellen minskar spänningarna i de studerade bultarna. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/9089669
- author
- Rundström, Daniel LU
- supervisor
-
- Joze Tavcar LU
- organization
- course
- MMKM05 20221
- year
- 2022
- type
- H2 - Master's Degree (Two Years)
- subject
- keywords
- Heat exchanger, bolted joints, product development, FEM.
- language
- English
- id
- 9089669
- date added to LUP
- 2022-06-16 13:07:58
- date last changed
- 2022-06-16 13:07:58
@misc{9089669,
abstract = {{In the process of making the industry more energy efficient, the gasketed plate heat exchanger has an important role as it effectively transfers heat between fluids. This master thesis aims to investigate and develop a new supportive foot for Alfa Laval’s gasketed plate heat exchangers. The goal was to present a design that can sustain severe external loads induced by for example the connecting piping system or earthquakes. Beyond sustaining the severe loads, the foot was also required to maintain a high serviceability and a low cost. The project covered in this report follows a development process where eleven different concepts were generated and scored. The most important factors in the developed concepts were cost, manufacturing, and serviceability. Two concepts emerged from the scoring and was further developed to test their feasibility. From the in-depth development one concept remained and was considered the best design. The design was then modelled in a FEM program together with an existing design to verify the stresses in the used bolts in the foot. In the verification of the design, it was concluded that the new design reduced the usage in the attached bolts in the foot by up to 67%, compared to existing designs. It was also found that preloading the bolts made the model less tolerant to the severe loads. Furthermore, adding a higher frictional coefficient to the model decreased the usage in the studied bolts.}},
author = {{Rundström, Daniel}},
language = {{eng}},
note = {{Student Paper}},
title = {{Development of Foot Design for Gasketed Plate Heat Exchangers}},
year = {{2022}},
}