Muhammad Wakil Shahzad
King Abdullah University, Saudi Arabia
Title: Simulation and Experimental Investigation of a Tri-Hybrid Desalination System
Biography
Biography: Muhammad Wakil Shahzad
Abstract
The primary energy consumption estimates in GCC region shows the highest growth rate in the World, 700mtoe by 2020 as compared to 350mtoe in 2010, mainly due to low efficiency industrial processes such as power and water production. In GCC countries, more than 40% of total energy is consumed in CCGT based power and desalination plants. All present low performance desalination processes are not only unsustainable for future water supplies but also polluting environment by adding tremendous amount of CO2. In 2009, GCC countries contributed to approximately 8% of the global CO2 emissions. For future sustainability, the present dominating thermally driven desalination processes such as multi effect desalination (MED) needs to improve. We proposed thermally driven tri-hybrid desalination cycle (NF+MED+AD) to overcome conventional MED process limitations. In this new cycle, the top brine temperature (TBT) can be raised to 125C by introducing nano-filtration (NF) feed pre-treatment and bottom brine temperature (BBT) limit can be extended to as low as 5C by integrating renewable energy driven adsorption (AD) cycle. The thermodynamic synergy of MED+AD hybrid cycle is demonstrated experimentally, boosting water production by 2 fold as same TBT. We also presented detailed mathematical model and transient simulation of tri-hybrid NF+MED+AD cycle. The results showed that the proposed cycle is one of the highest performance cycle reported in the literature up till now.