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The purpose of the present study was to analyze the performance of the milling process in light of various operational factors. Including the effect of moisture on the flow balance of the Dura Mill for flour, this suffers from the problem of the mismatch of the total quantities of grain flowing from the silos during a period of 24 hours with the designed energy. The practical aspect was based on the study of the grain flow balancer, which consists of an electronic circuit consisting of a load cell in addition to a digital indicator and an electric motor. The practical results obtained under the weather conditions of the city of Baghdad showed that the reading of the primary grain humidifier that operates electronically proves its accuracy and accuracy up to 98%. The results from the practical part proved that the grain flow is constant, but the humidity when it is fixed to (12.5, 14) % to allow wetting by adding (2.5, 1) L / h of water to get a final humidity of 15% as batches were moistened. Separate up to a content of 16% by adding water moisture levels are set at (6.8, 7.4) % for the raw grains, but in case the moisture of the raw grains rises, the device reduces the amount of water added, in addition to that, if the amount of grain flow changes, the device reduces The amount of water in order to stabilize the required moisture value is 14%. From results we noticed that the highest. The results shows that the highest flow rate were in day (23 Dec. 2021) at 10:30, while the higher amount of water gained were in day (12 Feb. 2022) which was 1530. The deviation rate for the total quantities withdrawn from the silo after 8 hours was 0.9%. In this study, two cultivars of local soft wheat and five cultivars of imported wheat were rehydrated, and their most important characteristics were determined by using a 24-hour rest period to moisten the soft wheat to the moisture content (16 and 17%). While the results showed decreasing the extraction rates of wheat and significant decreases in the flour moisture, and brightness of flour with increasing wheat final moisture content. [ABSTRACT FROM AUTHOR]

A method of solar-thermal conversion that shows promise is the Parabolic Trough Collector (PTC). It can generate hot water at a modest performance level, according to a previous model. By modifying and managing the system's thermal performance, this research intends to create a PTC system with new features. The preliminary model, which used four copper pipes instead of one to gain more heat from the sun and was covered in insulation material to prevent heat loss while the water pipes were being transported, was still in its infancy. The model was evaluated for a range of solar radiation of 300,400,500,600,780 W/m2 and water mass flow rates of 0.00305, 0.0055, and 0.0082 kg/s outside (directly facing the sun). The parameters. given were measured throughout. the day under the climate of Baghdad city in 33˚ direct to the sun. Thermal insulators are also employed. The back surface of the reflector. is insulated with Armaflex insulation. The results indicated that.the maximum thermal efficiency was 63.2 % at 780 W/m2 solar. radiation and 0.00825 kg/s mass flow rate. and the higher temperature. difference was measured 45˚ at minimum mass. flow rate 0.00305 kg/s. [ABSTRACT FROM AUTHOR]

This paper shows investigate and analyzed of theoretical and experimental performance of photovoltaic (PV) module under harsh weather conditions of Iraq. The investigation was performed in Baghdad because the weather climate change recently was noticeable and the shortage of electricity supplied from the national grid. The theoretical analysis addressed the parameters, analysis, and characteristics of the PV module were performed by MATLAB emulation software. Open-circuit voltage (Voc), short circuit current (Isc), output power (Poutput) characteristics, and PV module efficiency have been verified from the simulation model of the PV module. These characteristics have been experimentally investigated in order to validate the emulation outcomes. There are a good conformity between emulation and experimental results at different solar radiation and cell temperature weather conditions. [ABSTRACT FROM AUTHOR]

The mechanical effects in the boiler of steam power plants are a very complex problem and dangerous because of unstable pressure in the upper drum boiler. This work deals with an experimental investigation of the drum water level system in (Al-Quds power plant) in Baghdad / Iraq to explain the dynamic behavior of the system under a given operating condition. Mathematical equations of the boiler model are solved. The rapid elevation in the heat input (mass flow rate of fuel) has a dynamic effect on the riser tubes properties in the natural water circulation tube in a steam power plant's boiler. These are typically calculated under increasing heat input by ratio 10% and 20% for upper drum parameters. The outcomes represented that the rapid rise in the fuel flow rate leads to increase rates of evaporation and consequently caused a high elevation in the quality and this causes tube overheating. The temperature of the riser rising above the saturation temperatures slightly because of the steam temperature altitude and the dynamic influence resulting from a sharp rise in the thermal flux. [ABSTRACT FROM AUTHOR]