Effect of Turbocharger Compression Ratio on Performance of the Spark-Ignition Internal Combustion Engine

Internal Combustion Engines (ICE) are one of the most important engineering applications that operate based on the conversion of chemical energy from fuel into thermal energy as a result of direct combustion. The obtained thermal energy is then turned into kinetic energy to derive various means of transportation, such as marine, air, and land vehicles. The efficiency of ICE today is considered in the range of the intermediate level, and various improvements are being made to enhance its efficiency. The turbocharger can support the ICE, which works by increasing the pressure in the engine to enhance its efficiency. In this investigation, the effect of the turbocharger pressure on ICE performance was studied in the range of 2 to 10 bar. It was found that the increase in turbocharger pressure enhanced the pressure inside the engine, positively affecting engine efficiency indicators. Therefore, the increase in turbocharger pressure is directly proportional to the ICE efficiency. Doi: 10.28991/ESJ-2022-06-03-04 Full Text: PD

Energy profit evaluation of a photovoltaic system from a selected building in Jordan

The purpose of this study is to find the most profitable way to construct a photovoltaic (PV) system on a residential building in Amman by taking into account the local climate, the average monthly energy use, and the rates charged by the local electric utility. The building has a monthly energy usage of 550 kWh on average, with the biggest demand for energy occurring in the months of January and December and the lowest demand occurring in the months of April, May, and June. The photovoltaic (PV) system is mounted at a variety of angles, including 10°, 20°, 32°, and 54°. This study took into account the fact that the price of electrical energy is dependent on the demand for electricity in order to determine the periods of the day when there is the greatest need for energy. Another crucial aspect to consider is the sun's strength, which shifts during the course of the year. When solar intensity is at its peak and power rates are at their highest, a PV system is considered as a realistic choice to satisfy energy needs. This is because PV systems can generate energy even in cloudy conditions. A comprehensive examination of the solar energy that is taken in by a PV cell and the electric energy that is produced as a result of this is also included in the study

The effect of solar tower height on its energy output at Ma’an-Jordan

The solar power tower is a concentrated solar energy application that uses a receiver to capture reflected sunlight from the mirror field. Solar energy is seen as one of the solutions to the problem of climate change as it is environmentally friendly. In this work, the production of energy from a solar tower in the Ma’an region of southern Jordan was studied using a simulation program of 3D-Energy. The dependency of the power output on the tower height is presented while showing that greater power production can be facilitated by optimizing the height of the tower

Modelling of Operating Conditions of Conduction Heat Transfer Mode Using Energy 2D Simulation

An energy transfer across a system boundary due to a temperature difference by the mechanism of inter-molecular interactions called conduction heat transfer. In the present work, a mathematical model and a simulation based on Energy 2D V 3.0.1 simulator are presented to study the effect of the conduction parameters: thermal conductivity, surface contact area, temperature difference and conduction distance on the heat transferred by the conduction mode.  </p

Design of a solar photovoltaic system to cover the electricity demand for the faculty of Engineering- Mu'tah University in Jordan

In this study, the reduction ways of the electricity demand for Engineering Faculty at Mu'tah University were investigated. The using of the available resources efficiently and effectively to reduce energy bill is one way to reduce the energy consumption as well as the electricity generation. On grid photovoltaic system considers the most promising way to achieve the target of saving. For that, the availability of the solar photovoltaic system as an electricity generation source for Faculty of Engineering proposed to design a 56.7kW grid-connected as a solar photovoltaic power plant to cover the electricity demand. The analysis revealed that the Engineering Faculty at Mu'tah University consumed 96MWh annually and by installing an on-grid photovoltaic system with a capacity of 56.7 KW the electricity production to the grid will be 97.02MWh per year, which cover the electricity demand for Engineering Faculty at Mu'tah University with a capital cost of $117,000 and payback period about 5.5 years

In-situ investigation of water distribution in polymer electrolyte membrane fuel cells using high-resolution neutron tomography with 6.5 µm pixel size

In this feasibility study, high-resolution neutron tomography is used to investigate the water distribution in polymer electrolyte membrane fuel cells (PEMFCs). Two PEMFCs were built up with two different gas diffusion layers (GDLs) namely Sigracet&reg; SGL-25BC and Freudenberg H14C10, respectively. High-resolution neutron tomography has the ability to display the water distribution in the flow field channels and the GDLs, with very high accuracy. Here, we found that the water distribution in the cell equipped with the Freudenberg H14C10 material was much more homogenous compared to the cell with the SGL-25BC material