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Performance Comparison of Four-Stroke Diesel Engine Fuelled by Various Biodiesel Blends and Diesel

As’ad Samer, Alsaqoor Sameh, Al-Busoul Mamdoh Abdel Alaziz, Abu-Zaid M., Joka-Yilidz Magdalena, Borowski Gabriel, Al-Khawaldeh Mustafa Awwad

Advances in Science and Technology. Research Journal

2023

Vol. 17, no 4

46--52

The objective of this study is to compare the performance of diesel engines, fuelled with biofuel blends extracted from corn, sunflower, and palm oils, against pure diesel. The experiments were performed using Lister LVI, single-cylinder, direct injection, four-stroke engines, with a compression ratio of 17:1. The following parameters were analysed: brake torque, brake mean effective pressure (BMEP), brake specific fuel consumption (BSFC), brake thermal efficiency (BTE), and exhaust gas temperature (EGT). The findings indicate that the characteristics of biodiesels are close to diesel fuel. Therefore, biodiesel becomes a viable alternative to diesel fuel without any modifications. Pure diesel has higher brake thermal efficiency and lower BSFC than all the biodiesel blends tested in this study. In addition, the engine consumes less fuel for biodiesel blends than pure diesel. High exhaust temperatures are conducive to nitrogen oxides (NOx) generation; hence, this study reveals that the exhaust temperature is reduced when utilizing biodiesel compared to pure diesel. According to several tests, palm biodiesel provides greater torque and BMEP than the rest of the biodiesel blends, and pure diesel due to emitting less NOx. Therefore, it stands to reason that it would be utilized in a diesel engine.

Investigating the Potential of Steam Hydro Capacitor – Prototype

Alsaqoor Sameh, Sarayreh Hussein M., Andruszkiewicz Artur, Borowski Gabriel, Alahmer Ali, Abu-Zaid M.

Ecological Engineering & Environmental Technology

2022

Vol. 23, iss. 6

275--282

Recently, hydropower energy resources become an attractive means of generating electricity for, off-grid networks, especially in rural areas. This work aims to design a suitable prototype of an energy-storing system, which is called a Potential Steam Hydro Capacitor. This system gives a manageable source of electricity, and partially provides drinkable water, at a low cost, as an alternative to comparatively high-cost electrical batteries. The system is composed of two solar collectors, connected in series. The working fluid in the first collector is Dead Sea water, and in the second fresh water, a heat exchanger, a thermosiphon solar water heater connected to a high column to pass the vapor to high altitude, and a condensation unit on the roof of the building. The system succeeds in producing a considerable amount of fresh water at a height of 3.4 m. The potential energy produced, can operate a small turbine. The capability of the system, to convert thermal energy in the freshwater, to potential energy, was high, with an efficiency of 66.7%. adding solar concentrators to the system would increase the water collected.