OBJECTIVE To evaluate optimal humidifier water temperature when using a helmet for noninvasive ventilation. METHODS Twenty-eight healthy individuals underwent 8 cm H2O CPAP ventilation with FIO2 of 0.21 and 0.5. Each was sequentially tested in the following order: using the helmet without humidification at ambient temperature; with humidification with unheated chamber water; and with humidifi...

The lack of freshwater in many countries pushes authorities to utilize desalination units. Solid Oxide Fuel Cells (SOFC) have shown promising results provide the power establish a multi-generation system using hydrogen as renewable source. In this article, better improve efficiency suggested integrated system, waste heat SOFC is recovered through application Kalina cycle and Humidification-dehu...

Desiccant dehumidification has been given increasing interest in the air conditioning industry. Compared with conventional vapor compression air conditioning systems, desiccant dehumidification saves energy by separating humidity control from temperature control and also improves the indoor air quality as a good filter. This research explores the potential of applying desiccant dehumidification...

We searched the MEDLINE, CINAHL, and Cochrane Library databases for articles published between January 1990 and December 2011. The update of this clinical practice guideline is based on 184 clinical trials and systematic reviews, and 10 articles investigating humidification during invasive and noninvasive mechanical ventilation. The following recommendations are made following the Grading of R...

Integrated solar-assisted polygeneration systems have emerged as an effective and sustainable alternative for meeting thermal, power freshwater demands through decentralized generation. In this framework, study introduces a new design dynamic simulation approach to solar energy-driven system integrating gas steam turbine cycles, organic Rankine cycle (ORC), CO2 capture, humidification-dehumidif...

Numerous studies have demonstrated the efficacy of CPAP therapy for reducing symptoms (eg, daytime sleepiness), improving quality of life (QOL), reducing the risk of driving and occupational accidents, and preventing sequelae of obstructive sleep apnea (OSA), such as cardiovascular morbidity and mortality.1-3 Many patients have trouble complying with CPAP therapy even though it is effective.4 A...

Hypersaline brines are of growing environmental concern. While high-salinity desalination and zero liquid discharge (ZLD) increasingly attractive treatment options, the high salt scalant contents pose considerable technical difficulties to existing techniques. In this review, we introduce sources hypersaline brines, examine factors driving desalination, present thermodynamic minimum energy ZLD,...

Nasal continuous positive airway pressure (CPAP) can cause undesirable nasal symptoms, such as congestion to obstructive sleep apnoea (OSA) patients, whose symptoms can be attenuated by the addition of heated humidification. However, neither the nature of nasal symptoms nor the effect of heated humidification on nasal pathophysiology and pathology are convincingly known. 20 patients with OSA on...

BACKGROUND After tracheostomy, the airway lacks an essential mechanism for warming and humidifying the inspired air with the consequent functional impairment and discomfort. The purpose of this study was to compare airway hydration with cold-air nebulization versus heated high-flow humidification on medical interventions and tracheal ciliary beat frequency (CBF). METHODS Newly tracheostomized...