Investigation of hydrogen production with the method of high temperature electrolysis using industrial waste heat

Energy is one of the most important needs for fulfillment of humankind's main inputs, for social and economical development of the country. Along with the constantly developing technology the most advanced technology is known that hydrogen energy system which is environmental friendly and sustainable can be met the increasing energy requirements. This thesis aims to create an efficient, effective and multiple-disciplinary solution package within the circle drawn to produce hydrogen evaluating the waste heat. The solution package which will be created for the purpose of the thesis consists of two main processes: -The first process is to catch the waste heat with a heat exchanger. In this process, design limits are determined by an acceptable pressure drop of fluid and the total amount of heat that can be transferred. -The second process is to produce hydrogen using high-temperature steam electrolysis. Captured heat in the first process provides the heat of the electrolysis. In this process, the geometry of the electrode and material are focused on fundamental issues. In this process, the efficiency of the different options and economic analysis was performed. Literature review was made for heat exchanger design. Parametric analytic heat transfer calculations based on geometry having optimal values were performed. Then pressure of the fluid and heat transfer losses are limit taking in to account environmental factors. Number of electrolysis cell, the number of stacks and cell area which are the parameters that affect the high temperature electrolysis are determined on the basis of previous studies with a literature search. Steam temperature and steam flow rate that are calculated parametrically for the system.