A trigeneration system based on polymer electrolyte fuel cell and desiccant wheel - Part B: Overall system design and energy performance analysis

It is shown that constrains of actual applications have relevant effects on system energy consumption, which is significantly far from expected values based on a simplified analysis. Primary energy savings can be positive in winter time if the ratio of PEMFC heating capacity to air conditioning peak heating load is close to 0.15. Instead on yearly basis primary energy savings cannot be achieved with present components performance. Positive savings can be potentially achieved if PEMFC system and auxiliary devices are properly improved.