The experimental results also show that increment in the thermal conductivity of PCM with the dispersion 1wt. Moreover, the discharging time of heat stored took 5.5, 5, 4.5 and 4 hours at the air mass flow rate 0.03, 0.04, 0.05 and 0.06 kg/s, respectively. The experimental results show that improvement in the efficiency of the SAH integrated with storage compared to SAH without storage. The two steps method is used to prepare the mixture of nanoparticles with PCM and ultrasonic device is used to suspend the nanoparticles in the PCM. All configurations are fabricated and tested under the climatic conditions of middle Iraq according to ASHRAE standard tests at different air mass flow rates. Consequently, thermal energy storage is considered a perfect option to solve this issue Three different of the SAH configurations have been designed and studied without thermal storage, with thermal storage using paraffin wax as a PCM and with thermal storage using Al2O3-paraffin wax. The purpose of this study is to design, fabricate and evaluate the performance of SAH with integrated nanoparticles enhanced phase change material (PCM) absorber storage system ,the central problem of the solar energy is that it is an intermittent source, due to it dependence on the period of solar radiation. Therefore there is an urgent need for the regulatory agencies to beam their searchlight to the rural area of the country, in order to save the people from imminent electrical disasters. This study had revealed that most of the electric cables sold in the rural parts of the country are not up to NIS recommendations. In terms of electrical resistivity, 40% of the 1 mm 2 cable met the NIS recommendation of 2.15 X 10-7 for 1 mm 2 cable 50% of the 1.5 mm 2 cables were able to meet the NIS recommendation of 2.0 X 10-7 likewise, the results revealed that it is only 30% of the 2.5 mm 2 cables met the NIS recommendation of 1.85 X 10-7. The physical characteristics results depicted that 80% of the 1 mm 2 cable diameter fell below 1.3 mm 70% of the 1.5 mm 2 cable diameter fell below the 1.38 mm while 80% of the 2.5 mm 2 cables fell below the 1.78 mm recommendations. Results of the tests showed that most of the cables failed to meet NIS recommendations for electric cables and wires. The selected cables were subjected to core size and electrical resistivity tests. Samples of commonly used electric cables (1 mm 2, 1.5 mm 2, and 2.5 mm 2), were randomly procured from ten major electrical stores within Isoko metropolis of Delta state.
This study was done to assess the qualities of electric cables sold in Delta State, Nigeria. There is a record increment of substandard electrical accessories in Nigeria, mostly in rural areas.
Electrical house wiring diagram pdf code#
Power or power supply cables (like ,computer networking) which are routed in or via air-handling spaces (plenums) of office buildings are requisite under the typical building code to be either covered in metal conduit, or evaluated to low flame and smoke manufacture. Cables intended for very flexible service or in marine requests can be protected via woven bronze wires. Cables for manufacturing, commercial besides apartment buildings may involve numerous insulated conductors in an general jacket, with helical tape steel or aluminum armor, or else steel wire armor, besides perhaps as well an global PVC or lead jacket to protection from moisture and physical damage. The term cable eventually denoted to a nautical line of numerous ropes applied to anchor ships, besides to an electrical context, cables (similar to wires) are applied to transmit electrical currents. Wire acts a single electrical conductor, whereas a cable is a group of wires swathed in sheathing. More often than not, the name(wire or cable) are applied to designate the similar thing, while they are essentially quite altered. The data-printed on the wire shell is totally that you requisite to select the right wire for the home. Various influences that will affect our choice of electrical wiring involve color, label data with applications.
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