Volume 4 Issue 2
Abstract
This research work posits the ability of Lithium-ion (Liion) battery to adapt to other features in the energy recycling terrain in the presence of a suitable thermal source for radiation release. This ability was also compared to that from lead acid battery. It involved the use of experimentation to recycle the energy in the deep cells. The deep cells battery was connected through the inverter to the thermal source (the regenerator) by means of suitable cable leads. The thermal source was linked to a photovoltaic (PV) panel by radiation release. This PV panel then harnessed the radiant energy and converts it to electric energy which is controlled by the charge controller and to the battery. The experiment was conducted with Li-ion deep cells and results of voltage taken from the battery terminal. The Li-ion deep cells battery was replaced with lead acid deep cells battery and results also recorded. The recorded results showed an increase in voltage from 12.54 V to 12.84 V in 12hrs at 300w regenerator radiation level while for the lead acid, there was a voltage reduction. It was established that the pyrophosphate technology inherent in Li-ion made it possible for chargeability to occur despite the energy loss along the chain. The presence of Lead tetra-oxo sulphate (VI) in the lead acid system impeded the progress in the charging process.Author(s) and Download Link
Amadi, Rex Kemkom Chima, Ideriah, Felix J. K., Sodiki, John I. and Nkoi, BarinyimaJournal of Newviews in Engineering and Technology (JNET), April, 2022 pp1-9 [Online Full Text] of
Effect of the Regenerator on Li-ion and Lead Deep Cells
Abstract
The huge increase in motor vehicles on Port Harcourt Road is causing traffic problems like accidents, congestions, delays etc., especially at intersections. This paper examines the traffic problems and sustainable improvement of Garrison intersection along Port Harcourt – Aba Expressway. A proper traffic study at the intersection was carried out and the factors of the intersection causing delay were identified using the Relative Importance Index (R.I.I) from a well-developed questionnaire of about 250. Data regarding the traffic volume and pedestrian movement activities were collected through direct field surveys. Analysis of the collected data revealed that the major causes of traffic congestion at Garrison Intersection based on the R.I.I ranking are Inadequate Bus Stop Capacity, Poor Traffic Control, Poor Driver Habit, No Pedestrian Crossing Facility, and Inadequate Road Capacity. Various remedial measures are also proposed, focusing on the intersection improvement with the provision of U-turnings, Pedestrian crossing facilities, Bus stop bays off the road.Author(s) and Download Limk
Captain Gospel Otto and Chiwokwa Emmanuella OgbodaJournal of Newviews in Engineering and Technology (JNET), April, 2022 pp10-17 [Online Full Text] of
A Survey of Traffic Congestion Measure Towards a Sustainable Traffic Flow at Garrison Intersection in Port Harcourt, Nigeria.
Abstract
In this study, a detailed overview of carbon (IV) Oxide (CO2) abatement potential through computer-based simulation of ship propulsive efficiencies and analyses with targets compatible with International Maritime Organization (IMO) long-term aim of keeping CO2 emission low and contribute to maintaining the earth’s surface temperature well below the catastrophic 2°C is presented. A tanker vessel-MT Diamond is selected as a case study. CO2 emission reduction studies on propulsion systems conducted by several researchers are hinged on economic and efficiency factors,’ route optimization, Engine-Propeller-Hull Matching (EPHM), trim, draft, and block coefficient optimization amongst others. As a result, credence in this direction of research is unavoidable and this research studied the correlation between ship CO2 emission and ship propulsive efficiencies. The computational models and simulation for this work were brought to bear utilizing codes scripted in MATLAB. The models developed were implemented in MATLAB2018a to simulate the characteristics of some propulsion system efficiencies. Cumulatively, the study revealed that the optimal ship effective power is 8.20kW at a ship speed of 13knot coupled with a 0.049s-1 decay constant, the ship CO2 emission level shows a commensurate improvement of 3.5% when the optimal overall ship propulsive efficiency is 50.7%. Simulation conducted to reproduce the propulsion system characteristics and analyzed results to affirm the validity of the mathematical models. Also, the propulsion system parametric performance improvement shows a corresponding improvement in ship CO2 emission level and specific fuel consumption (sfc)Author(s) and Download Limk
Odokwo, V. E., Theophilus-Johnson, K., Nitonye, S and Ogbonnaya, E. A..Journal of Newviews in Engineering and Technology (JNET), April, 2022 pp18-28 [Online Full Text] of
Influence of Optimized Propulsive Efficiencies on De-carbonization of Ship Emission
Abstract
The stability characteristics of cohesive soil blended with Portland Limestone Cement (PLC) and Residue from Spent Calcium-carbide (RSCC) was investigated in Amalem Community, Abua, Rivers State, Nigeria. Remolded soil samples obtained at depth of 1-2 meters were mixed with PLC and RSCC and subsequently subjected to Unconfined Compressive Strength (UCS). The cohesive soil was mixed with 3%, 4%, 5% and 6% PLC content by weight of the soil and for each percentage of PLC content, 7%, 9%, 11%, 13% and 15% RSCC by weight of the soil was subsequently added. Results showed that stabilization of the soil with PLC and RSCC increased its Unconfined Compressive Strength (UCS) and bearing capacity. However, addition of more than 5% PLC and 13% RSCC caused a decrease in the UCS and bearing capacity of the sample. From the above results, the most suitable mixed proportion of PLC and RSCC with cohesive soils was 3% PLC and 15% RSCC to satisfy Stability requirements. Based on the test results, PLC and RSCC blended binds suitably for the stabilization of cohesive soils. KEYWORDS: Cohesive soils, Portland Limestone Cement, Residue from Spent Calcium-carbide, Soil Stabilization, Stability.Author(s) and Download Limk
Awarri, A.W., Akpila, S.B. and Jaja, G.W.T.Journal of Newviews in Engineering and Technology (JNET), April, 2022 pp 29-35 [Online Full Text] of
Stability Analysis of Cement and Residue from Spent Calcium-Carbide Stabilized Cohesive Soil
Abstract
The needs to feed the ever increasing world population sustainably and reduce the cost of livestock production are pushing the world to adopt circular agriculture (CA) that demands for the paradigm shift from conventional feed ingredients to co-products as feed ingredients for feed manufacture. However, owing to the high cost of feed pelleting machines the co-products are not being used optimally in the developing countries like Nigeria as they are being fed to animals as mash meal instead of feed extrudates as demanded by CA. It, therefore, follows that this sustainable move needs to be balanced against the ability of farmers to procure relevant equipment to manufacture quality feed extrudates from 100 % coproducts. A number of small size extruder models were developed but were found to have low capacities, low efficiencies and require high power input. The extruder models also did not address the drying unit operation, and this pushed for the development of a continuous extrusion- Drying-Cooling (CEDC) Feed plant. The CEDC feed plant, which was developed using locally available materials, consists of the following components: an electric motor, an extruder with changeable die, and drying-cooling unit, which are integrated. The performance of the CEDC feed plant was evaluated and found to produce performance data that compare favourably with existing commercial models. The plant has a performance capacity of 510 kg/hr and produced physical quality feed whose average quality characteristics are durability index (0.986), hardness (0.6915 MPa), diameter (8.96 mm) and length (58.805 mm).Author(s) and Download Limk
Cyprian Nnamdi Ifediegwu, Thomas Okechukwu Onah, and Stephen OjoborJournal of Newviews in Engineering and Technology (JNET), April, 2022 pp 36-44[Online Full Text] of
The Performance of a Continuous Extrusion-Drying-Cooling Feed Plant for Production of Livestock Extrudates
