Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Dynamisk Analys av scrollkompressorn
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.).
2007 (Swedish)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Dynamic Analysis of a scroll compressor (English)
Abstract [sv]

Det svenska företaget Thermia använder scrollkompressorer från det

amerikanska bolaget Copeland i sina värmepumpsystem. Trots den

betydande ljudminskning som scrollkompressorer ger jämfört med andra

kompressorer är ljudtrycksnivån fortfarande 56 dBA. Den här ljudtrycksnivån

är inte tillräckligt låg om man vill placera systemet i köket. Företaget önskar

minska hela systemets ljudtrycksnivå.

Rapporten innehåller en dynamisk analys av de olika möjliga

ljudkällorna i kompressorn. Den innehåller dessutom ett noggrant studium

av scrollkompressorns verkningssätt och några förslag till förbättringar av

kompressorns uppbyggnad. Under undersökningen upptäcktes att

Oldhamkopplingen var i obalans. Den svänger rätlinjigt.

Svängningsfrekvensen är motorns vinkelfrekvens.

Rapporten presenterar några förslag till förbättrade

konstruktionslösningar i syfte att eliminera svängningsproblemen.

Matematiska förklaringar och några ritningar ingår också i rapporten för de

olika lösningarna.

Abstract [en]

The Swedish company Thermia uses for its Air Conditioning and Heating

Pumps systems scroll compressors from the American Manufacturer

Copeland. Despite the substantial reduction of noise that these type of

compressor present in comparison to the piston compressor they still have a

sound pressure level of 56 dBA. This sound level is unacceptable for a

domestic usage when placing the compressor in living areas like the kitchen.

The company has great interest in reducing the sound levels of the

equipment as a whole.

This report presents a dynamical analysis of the possible causes of noise

coming from the scroll compressor. It involves a deep study of the operation

of the present model of scroll compressor and several proposals for

improving the design.

During the study, one of the main components of the system was

discovered to be unbalanced. The so-called Oldham coupling oscillates with a

double frequency the compressor rotates. The report presents a number of

solutions based on the original design and minimizing the modifications on

it. Mathematical explanation and rough designs are given for these

suggestions.

Place, publisher, year, edition, pages
2007.
Series
MMK 2007:33 MPK 593
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-100808OAI: oai:DiVA.org:kth-100808DiVA: diva2:545033
Uppsok
Technology
Supervisors
Examiners
Available from: 2012-08-17 Created: 2012-08-17 Last updated: 2012-08-17Bibliographically approved

Open Access in DiVA

Elena Laso Plaza(4378 kB)615 downloads
File information
File name FULLTEXT01.pdfFile size 4378 kBChecksum SHA-512
ed4a7b3852802101e1afa37c62ff4c2bf18655387a08d8504acac89df244ef96327f3b42aaa727464c525bcbbdfa7103fed986e036d90986920e25f405ac3937
Type fulltextMimetype application/pdf

By organisation
Machine Design (Dept.)
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 615 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 150 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf