Design and thermodynamic performance evaluation of a biomass-combustion-based combined plant for liquid hydrogen generation with other beneficial products

In this proposed research, a biomass-assisted multigeneration cycle is suggested for the production of power, heating-cooling, liquid hydrogen, ammonia, and freshwater. The study integrates a Brayton cycle with an intercooler, a three-stage Rankine cycle, a quadruple-effect absorption cooling unit, a liquid hydrogen production system, an ammonia production system, and a clean water production system, and a comprehensive performance analysis is conducted. In this context, considering the laws of thermodynamics, energy and exergy efficiencies, and exergy destruction rate are calculated for the sub-schemes and the entire model. Subsequently, parametric changes are investigated to observe variations in system performance. Analysis findings determine the arrangement's total power generation rate as 14483 kW, while also being able to yield 0.01092 kg/s of liquid hydrogen equivalent. Furthermore, the designed whole structure works with an energetic performance of 0.6592 and an exergetic performance of 0.6116 while achieving these outputs.