In order to enable the unlimited use of thermal energy from fluids in natural environment, the need for a completely new power cycle arose that would be the most efficient and could generate power from low temperature sources (e.g. seas, lakes or atmosphere). The idea to apply an injector (ejector or thermal compressor) in a power cycle led to the discovery of the Injection Power Cycle (IPC). A...

In the current paper, the cooling of a bipolar transistor with phase change is investigated. The nanoparticle-enhanced phase change material (NEPCM) can transform from a solid to a liquid by absorbing and releasing energy. The NEPCM is composed of various nanoparticles such as silver, Copper, Aluminum Oxide, Copper (II) oxide, Titanium dioxide, graphene nanoplates, single and multi wall carbon ...

Methanation, which synthesizes methane from carbon dioxide and hydrogen, can potentially be an important core technology for realizing a carbon-neutral society. A catalyst is normally used in the methanation process, but its thermal degradation is a serious problem. Thus, we have proposed a catalyst-free methanation reactor that simulates an internal combustion engine. We call it a Methanation ...

This study investigates how men and women in MINT countries contribute to enhancing energy efficiency across various sectors through technological innovation. Gender plays a pivotal role in the energy efficiency landscape, and this study examines how promoting gender equality and increasing women's participation in innovation can enhance energy efficiency outcomes. Using data from the World Ban...

The service life of equipment is generally linked to degradation factors depending on its operating conditions, including the rate of use and the frequency of the switching modes. The novel operating mode management proposed in this paper takes into account equipment lifetime in addition to all the previously mentioned requirements. This algorithm does not rely only on real-time data, as is tra...

In tribology studies, the interaction between solid and liquid surfaces is a common focus, with particular attention given to wear rates and surface scars. These wear and scar issues are analyzed through adsorption mechanisms. A key factor in these problems is the orientation of the liquid on solid surfaces, which requires an in-depth examination of molecular orientations. This study aims to in...

Globally, over 3 billion people i.e. almost 40% of world population still depends on biomass fuels such as fuel wood, charcoal, Agricultural residue, dung and coal for household energy use. The biomass energy has a share of more than 30 percent of the energy consumed in Africa. However, in most Sub-Saharan African countries accounted for 90-98 percent of household energy consumption. More than ...

The influence of gas-pulsed flow when supplied in the perpendicular direction to the refined standard (RS) sugar layer has been studied in this article. Some hydrodynamic parameters of the RS sugar in the gas-pulsed fluidized bed have also been determined. The research results have been applied in the design of the RS sugar dryer using the modern pulsed fluidized bed drying method. The bed poro...

This review paper aims to gather informative data on the impact of climate extremes on the physical environment, public health, and the livelihoods of people in Ethiopia. The primary sources of data for this review were peer-reviewed journal articles obtained from electronic databases such as PubMed, Central, Scopus, and Web of Science. Globally, the vast majority of households in developing co...

As smart home technology advances, the quest for sustainable energy management solutions grows. This study examines the interaction between solar energy systems and smart home activities, focusing on using an ESP32 microcontroller to regulate lighting and temperature. The proposed system combines sophisticated software algorithms with authentic hardware components to allow for real-time monitor...