in this study, a single layer sliced potato was dried using an infrared lamp heating under vacuum over three levels of radiant power including 100, 150 and 200 w, three slices thickness 1, 2 and 3 mm and the absolute pressure of 20, 80, 140 and 760 mmhg. samples were dried in triplicate to achieve 6% moisture content (wet based) which is suitable for long-term storage. drying rate was monitored...

In this work, the effects of scale on thermal behavior of the slab in a walking-beam type reheating furnace is studied by considering scale formation and growth in a furnace environment. Also, mathematical heat transfer model to predict the thermal radiation in a complex shaped reheating furnace with slab and skid buttons is developed with combined nongray WSGGM and blocked-off solution procedu...

In the present work, human thermal comfort is investigated within the built environment. The analysis is based on two building thermal simulation models. In the first one Nodal Network – the air condition (such as, air temperature and velocity) within each thermal zone is assumed uniform and therefore, all zone occupants are exposed to the same condition. In the second model – Nodal NetworkCFD ...

An extensive set of physical and optical measurements is utilized to characterize the processes and quantify parameters that contribute to the variability of sea surface albedo, solar transmission, and radiant heating rate (RHR). This study is among the first to utilize multidisciplinary observations coupled with radiative transfer simulations to investigate the impact of optical properties on ...

A method is developed for predicting the radiant heat ux distribution produced by tungsten lament , tubular fused-quartz envelope heating systems with re BLOCKINectors. The method is an application of Monte Carlo simulation, which takes the form of a random walk or ray tracing scheme. The method is applied to four systems of increasing complexity, including a single lamp without a re BLOCKINect...

Data collected at the Atmospheric Radiation Measurement (ARM) Program ground sites allow for the description of the atmospheric thermodynamic state, cloud occurrence, and cloud properties. This information allows for the derivation of estimates of the effects of clouds on the radiation budget of the surface and atmosphere. Herein 8 yr of continuous data collected at the ARM Southern Great Plain...