Evaporative cooling has the potential to reduce stack and system volume of polymer electrolyte fuel cells by up 30% cut costs significantly simplifying multi-layered structure bipolar plates eliminating need for external humidification. This study provides an experimental proof concept analyzing evaporation behavior, power, internal humidification, electrochemical performance operational stabil...

Humidification process is one of the applications of membrane contactor in which partial pressure of a vapor in the gas stream increases. In this study, two different polyethersulfone and polyetherimide hollow fiber membranes were fabricated and characterized by various test methods and their performance in humidification process under different operating conditions was investigated. The PES me...

A humidifier system for neonatology that functions according to the 'membrane humidification' principle was subjected to a performance test in our laboratory. Humidification and heating of the respiratory gases took place in a module consisting of a net of hollow fibres placed inside the incubator. In 18 measurement combinations flow, respiratory gas temperature, and incubator temperature were ...

Only one healthy volunteer reported feeling no nasal discomfort while inhaling dry oxygen; all the other subjects reported some degree of discomfort and irritation. These data clearly demonstrate that humidification of oxygen reduces nasal discomfort that can occur in both young healthy volunteers and older patients with pulmonary disease, particularly at flows 3 L/min. Two limitations of this ...

Purpose is to evaluate the plant breeding material of alfalfa by indices water metabolism in different conditions humidification, determine patterns their manifestation, correlation ties between them and drought tolerance, point out best for introduction into process. Methods. Field, laboratory, statistical. Results. During 2017–2020, 9 populations were studied regime: content tissues, deficit ...

provided the original work is properly cited. CC Hypothermia is a common complication in postoperative patients with well-known effects on hospital outcome [1]. Patients undergoing shoulder arthroscopy surgery in some cases develop different grades of perioperative hypothermia as a secondary effect of cold shoulder irrigation. Additionally, sedation and invasive mechanical ventilation aggravate...