Contact Information

tel: (610) 758-4729
fax: (610) 758-5057
e-mail: kt01@lehigh.edu

Research Interests

Heat Transfer in Gas-Solid Fluidized Beds

Gas-solid fluidized beds find wide application in chemical and environmental industry. We are interested in the complex mechanisms of heat transfer between such gas-particulate fluid and solid walls. Extensive experimental research is carried out in our laboratory to understand the hydrodynamics of this gas-solid flow and mechanisms of heat transfer. Special instrumentation has been developed to characterize local and average particle concentrations and their effect on heat transfer rate. This information is used in analytical and phenomenological models to represent the two-phase fluid mechanics and heat transfer.

Boiling and Evaporation

Many processes in the chemical engineering require boiling of single or multi-component fluids. The applications encountered include small air conditioning systems as well as large power plants. In our laboratories, we have an extensive experimental program to study convective boiling as well as pool boiling of single and multi component fluids. The overall phenomena are a complex one involving fluid mechanics, heat and mass transfer. We have developed special instrumentation to detect local and average information on void fraction and heat transfer. Experimental information helps us to understand the phenomena and develop phenomenological models/correlations for use in engineering applications in chemical engineering industry.