Simultaneous synthesis of H2, O2, and N2 via an innovatory energy system in Coronavirus pandemic time: Design, techno-economic assessment, and optimization approaches

Abstract

In this work, an innovative integrated system that is incorporated from solid oxide electrolysis cells and an oxygen separator membrane is assessed and optimized from the techno-economic aspects to respond to oxygen, hydrogen, and nitrogen demands for hospitals and other health care applications. Besides, a parametric comparison is conducted to apprehend the weights of parameters changes on the performance of criteria. Relying on the assessments, from the hydrogen production of 1 kg/s, 23.19 kg/s of oxygen, and 50.22 kg/s of nitrogen are produced. The parametric study shows that by raising the working temperature of the electrolyzer, the cell voltage variation has descending trend and the power consumption of the system is decreased by 19%. Finally, the results of multi-criteria optimization on the Pareto front reveal that in the optimal case, the system payback period is attained at about 5.32 years and the exergy efficiency of 92.47%, which are improved 16.6% and 16.2% compared to the base case, sequentially. Consequently, this system is proposed to consider as a cost-effective and reliable option towards its vital and valuable productions, in the pandemic period and after’s.

An auxiliary design system for industrial heat supply system considering carbon reduction benefit

“…Traditionally, industrial users made their investment decision based solely on economic evaluation indexes, for instance, payback period, internal rate of return (IRR) , net present value (NPV) etc. [7,8]. These commonly used indexes have nothing to do with carbon emission.…”

Accessibility of Rehabilitation Facility: Evaluation Based on Spatial Big Data in Xiamen

“…Currently, with the spread of COVID-19, improving individual immunity is one of the main measures to ght the virus [1]. At the same time, mankind is also facing the pressure of climate change and energy transition [2][3][4][5]. Rehabilitation infrastructures such as stadiums play an important role in improving the immunity of individuals, as well as providing important physical facilities for the recovery and rehabilitation of people infected with COVID-19 [6,7].…”

Industrial Demand and Innovation: An Application of Binomial Regression Model to Project Statistics of NSFC of China

“…Solar thermal power generation technology generates electricity by gathering solar energy and converting photoelectric energy by physical means, which does little harm to the environment. e CO 2 emission of a solar thermal power plant in the whole life cycle are only 13-19 g/kWh [3]. At the same time, the use of inexhaustible solar energy resources for power generation can e ectively save fossil energy and alleviate the energy crisis.…”