A numerical study of heat transfer effects and aerodynamic noise reduction in superheated steam flow passing a temperature and pressure regulation valve

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

Steam is a common medium in thermal engineering. When it flows through a throttling element, the aerodynamic noise may occur due to the disturbance. In this investigation, superheated steam flowing through a Venturi tube, one of the main parts in a temperature and pressure regulation valve, at different thermal conditions is studied to analyze to effects of heat transfer on the acoustic power. With a high temperature and a low pressure, the superheated steam is treated as ideal gas. The flow velocity is high, so the k-epsilon turbulent model is used, with the compressible steam. The results show that under the adiabatic condition, the acoustic power mainly influenced by the turbulent characteristics, such as the dissipation rate and the turbulent kinetic energy. Comparing the acoustic power levels at different thermal conditions, it is found that a lower temperature results to a lower acoustic power.

Detaljer

Författare
Enheter & grupper
Externa organisationer
  • Hangzhou Worldwides Valve Co., Ltd.
  • Zhejiang University
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Energiteknik
Originalspråkengelska
Sidor (från-till)873-889
Antal sidor17
TidskriftNumerical Heat Transfer; Part A: Applications
Volym77
Utgåva nummer10
StatusPublished - 2020
PublikationskategoriForskning
Peer review utfördJa