Combined Laser Doppler Anemometer and Phase Doppler Anemometer System for Thermofluids Research at UTP

The thermofluids group laboratory of Universiti Teknologi Petronas (UTP) owns and operates a few high-end equipment in support of research and educational activities. The latest addition to the laboratory facilities is the combined
three-dimensional Laser Doppler Anemometer (LDA) and Phase Doppler Anemometer (PDA) systems. The PDA system is capable of measuring diameter and concentration of spray droplets, while the LDA system can measure droplet velocity for both temporal and spatial averages. The acquired system, which is
supplied by Dantec Dynamics, is a non-intrusive measurement method with the ability to measure spray droplet velocities in three components. Thus the system is the first of its kind used in Malaysia. With this high-end and state-of-the-art facility, UTP is ready to contribute towards the technology development in various thermofluids researches in Malaysia, namely in internal combustion, fluid dynamics, spray painting and chemical processes. This paper outlines the research activities involving the use of LDA-PDA system, its functions, testing capabilities, and general characteristics, as well as an overview of the system.