Dursun Pehlivan

TL;DR: In this paper, an indirect forced convection solar dryer consisting of a solar air heater with conical concentrator and a drying cabinet were used in the experiments, and the drying curves obtained from the data were fitted to a number of mathematical models and the effects of drying air temperature, velocity and relative humidity were evaluated by the multiple regression and compared to previously given models.

TL;DR: In this paper, the drying behavior of single apricots, hanging in the flow direction of hot air in a drying chamber, was investigated, and a new model was developed.

TL;DR: In this article, open-air sun drying experiments were conducted on apricots pre-sulphured with SO 2 or NaHSO 3, grapes, peaches, figs and plums, in the ranges of 27-43 °C ambient temperature and 0.72-2.93 MJ/m 2 ǫh solar radiation.

TL;DR: In this paper, a heat exchanger which is constructed by placing spring-shaped wires with varying pitch within a helical pipe was considered, and the pressure drop and overall heat transfer rates were measured for the case of air flow at various Reynolds numbers inside and constant water flow outside.

TL;DR: A rotary column cylindrical dryer (RCCD) equipped with a specially designed air solar collector (ASC) was investigated to find optimum drying air rate and rotation speed of dryer, to maintain uniform and hygienic drying conditions and to reduce drying times as discussed by the authors.