Two-phase experimental heat transfer studies on a water-diesel system in a shell and tube heat exchanger

Abstract

-Two-phase heat transfer involving two immiscible systems is gaining importance in petrochemical and allied industries. Varying compositions of diesel and water were experimentally studied in a 1:2 shell and tube heat exchanger. The data on pure water and diesel were fitted to an equation of the form. .The two-phase multiplier, Φ L , was related to the Lockhart Martinelli (L-M) parameter, χ tt 2 , using the two-phase data and a correlation Φ L = b+c(χ tt 2 )+d/(χ tt 2 ) 2 was established. The two-phase heat transfer coefficient was calculated based on the coefficients 'a' and 'm' for pure diesel and pure water along with Ф L and the L-M parameter. The calculated values of the two-phase heat transfer coefficient h 2ϕ based on pure diesel and pure water suggest that diesel is a better reference fluid since the average error is much smaller compared to pure water as reference.

Parametric Optimization and Control of Heat Exchanger using Linear Quadratic Controller and Dynamic Matrix Controller

“…The proposed plants are commonly used in many industries like gas industries, nuclear power plants, petrochemical industries [1]. Heat exchangers are used to conduct the heat between two difference temperature medium like liquids and gases.…”