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This study deals with an integrated solar combined cycle systems (ISCCS) simulation. The ISCCS presents a cogeneration of the Parabolic Trough Solar collector (PTC) system and the Rankine power cycle. The PTC system is employed to ensure stable thermal energy which is required to operate a steam turbine (with three stages), which is designed to produce enough electrical power (medium scale). The performance of the ISCCS is simulated and evaluated by using the TRNSYS software. This system is being considered for installation in Irbid, Jordan, and a comparison study is being conducted to determine the performance of the ISCCSmedium scale during the winter and summer seasons. The results show that the ISCRCS system's efficiency is 14.3% in winter (January 1) and 21.2% in summer (August 1), with 4.48 MW of electrical power produced in winter (January 1) and 4.05 MW produced in summer (August 1).

he aim of this study is to reduce Peas contamination with herbicide by applying chemigation in new reclaimed lands through drip irrigation systems. The herbicide (butralin) was injected with recommended rate (2.5 Kg/Fed) through subsurface and surface drip irrigation systems with two flow rates of 8 and 12 l/h/m tube under sandy soil conditions in winter and summer seasons 2016. The results showed that the highest productivity of the peas was (5570 kg / Fed) with water use efficiency (WUE) of (2.31 Kg / m3) and more uniformity under the following conditions: the subsurface drip irrigation system at an flow rate of 8 l / h/mtube (dripper flow rate of 4 l/h) and 50 cm emitters spacing, injection of the herbicide (butralin). It is wearthly to mention that no (butralin) residues were found in Pea yield produced under subsurface drip irrigation systems (10 cm depth), 50 cm emitters spacing and 8 l/h/m flow rate under the manured sandy soil.

Recent research indicate that, it is possible to obtain many positive effects on water quality that improve water use in done by using magnetic water technique an devies 15000 Gaous the effectivenens of magnetic flux denisity were 300-400 meter. This work in using magnetization fertigation process was carried out to investigate soil moisture distributions under three soil layers depth of 10, 20 and 30 cm. The effect of water source electrical conductivity (Ec) and on root mass, leaf area and green leaf mass was investigated .The results indicated that:1-There were a lot of differences in soil moisture content through soil layers increasing in the upper layers of soil for layer (10-20 cm)., Also the effect of magnetized increases in soil moisture content when the distance to magnatic device less than 200 m. 2-The magnetized process decreasing water sours Ec from 4691.1 to 4467.2 ppm. 3-There were a significant percentage increase (62.7,10.61 and 26.11) and (78.7,16.98 and38.29) in leaf area, leaf green mass and root mass when the magnetic instrument at distances of 200 and 50 m away from the target area.