In this paper, life cycle cost analysis of a self sustained hybrid photovoltaic/thermal (PV/T) greenhouse dryer has been carried out. The hybrid PV/T integrated greenhouse (roof type even span) dryer, designed and constructed at Solar Energy Park, Indian Institute of Technology, New Delhi (28 0 35 N, 77 0 12 E, 216 m above MSL), India, has been used to dry Thompson seedless grapes under forced ...

A domestic solar dryer with transparent external surfaces was designed, built and tested. Thin-layer drying models that describe the drying phenomena in a unified way, regardless of the controlling mechanism; have been used to estimate the drying period for several products. Temperature of the drying medium is one of the factors that affect the drying rate constant of the exponential model. Thi...

Carambola is an excellent C-vitamin source and other healthy nutrients; unfortunately, because its high moisture content a very perishable fruit. Solar drying feasible solution for preservation. However, the optimal conditions depend on dryer material. A natural convection sun-dryer was modified using four different materials: glass, acrylic, polycarbonate, polyethylene. The of carambola slices...

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...

Post-harvest losses are one of the major livelihood challenges for farmers in Global South. The use drying technologies to preserve agricultural products has been promoted as a particular solution address this challenge. In regard, we designed and tested passive indirect solar dryer an alternative open sun (OSD) Gurue district, Central Mozambique, using amaranth leaves maize. addition, sensoria...

The purpose of the paper is to present a concept of energy efficiency and financial evaluation of counterflow dryer. Energy efficiency and many other efficiency indexes of the dryer and all additional devices like heater, heat exchangers, tubing and fans are calculated. Expert system provides also the financial evaluation of the investment. Many investments could be considered. The system provi...

In this paper, the modelling and control of the moisture content of the particles in a batch Fluidised bed dryer are studied. First, a lumped mechanistic model is developed to describe the heat and mass transfer between solid, gas and bubble phases and experimental validation shows that the model can be used to predict the particle moisture content and temperature profiles during the drying pro...

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 ...