An Experimental Investigation of the Liquid Jet Breakup Characteristics in a Vaporizer under Equivalent Operating Conditions of a Microturbine Combustion Chamber Le Quy Don Technical University

Format:

Book

Conference/Event

Author/Creator:

Hà Nguyễn, author.

Contributor:

Manh, Vu

Pham, Phuong Xuan

Quan, Nguyen

Conference Name:

WCX SAE World Congress Experience (2025-04-08 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2025

Summary:

This study experimentally investigates the liquid jet breakup process in a vaporizer of a microturbine combustion chamber under equivalent operating conditions, including temperature and air mass flow rate. A high-speed camera experimental system, coupled with an image processing code, was developed to analyze the jet breakup length. The fuel jet is centrally positioned in a vaporizer with an inner diameter of 8mm. Airflow enters the vaporizer at controlled pressures, while thermal conditions are maintained between 298 K and 373 K using a PID-controlled heating system. The liquid is supplied through a jet with a 0.4 mm inner diameter, with a range of Reynolds numbers (Reliq = 23003400), and aerodynamic Weber numbers (Weg = 410), corresponding to the membrane and/or fiber breakup modes of the liquid jet. Based on the results of jet breakup length, a new model has been developed to complement flow regimes by low Weber and Reynolds numbers. The analysis of droplet size distribution indicates that it follows a normal distribution pattern, with the majority of droplet sizes ranging from 150 to 250 μm. These results are crucial for improving the air-fuel mixing process inside the vaporizer before it enters the primary combustion zone

Notes:

Vendor supplied data

Publisher Number:

2025-01-8458

Access Restriction:

Restricted for use by site license