INVESTIGATION THE EFFECT OF A DISTRIBUTOR USING A SUPERSONIC NOZZLE ON THE COOLING SYSTEM

Coşar I., Pinarbaşi A.

3rd INTERNATIONAL CONFERENCE ON HEALTH, ENGINEERING AND APPLIED SCIENCES, Tirane, Arnavutluk, 17 - 19 Kasım 2023, ss.1

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Tirane
  • Basıldığı Ülke: Arnavutluk
  • Sayfa Sayıları: ss.1
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

Evaporators are important components in refrigeration systems and their size is determined by the size of the refrigeration unit. The fluid enters the evaporator as saturated vapor, then liquid particles in the fluid are evaporated by extracting heat from the environment. The fluid exits the evaporator as superheated vapor and completes the cycle by going towards the suction line. Evaporators can consist of multiple circuits to ensure even distribution of heat absorption from the finned surfaces. A distributor is placed between the expansion valve and the evaporator to feed the circuits. Non-uniform refrigerant flow in the distributor can negatively impact the capacity and COP of the cooling system. This study aims to propose various distributors to achieve homogeneous distribution of refrigerant in each circuit of the evaporator. The two-phase flow analysis of the distributor designed using supersonic nozzle will be conducted in the ANSYS CFX 2022 program. The flow profile obtained from the designed distributor will be compared with distributors in existing literature.

Keywords: Evaporator, distributor, supersonic nozzle, COP