BACKGROUND During general anesthesia, a heated breathing circuit (HBC) is used to replace the heat and moisture exchange function of the upper airway. One HBC uses an air dryer filter that employs silica gel (SG) as a desiccant. SG is capable of adsorbing many organic compounds. Therefore, we undertook an in vitro study of the adsorption of desflurane by SG filters. METHODS An HBC was connect...

Within a 53 home monitored sample, long-term energy use of electric resistance clothes dryers was sub-metered. Average measured dryer energy use was 3% of total household energy or 814 kWh/year. Hourly dryer electrical demand profile showed large coincidence with utility summer afternoon peak and significant increases over weekends versus weekdays. After collection of baseline data, electric re...

A solar dryer hybrid photovoltaic thermal (PV/T) system has been designed, built and its performance studied. This research aims to develop a stand-alone dyer system, portable less maintenance. consists of three main parts; PV/T with configuration-Z absorber plate, multi-direction collector cross plate drying chamber. Solar which was designed in the is called because radiation does not get heat...

Drying is one of the most conventional methods used for and before preservation storage. It also improves post-harvest quality value addition product. This present evaluate feasibility a solar tunnel dryer preparing onion powder. The study aims to minimize storage losses provide cheap alternative open sun drying. Solar drying would create an income source in rural area, especially farmers, can ...