The use of new energy sources, including geothermal energy, is expanding rapidly in the world, and this energy is a good alternative to fossil fuels. In the present study, a combined power generation system (combined instantaneous evaporation cycle with supercritical carbon dioxide recovery...

Highlights● A review of ages of granite emplacement is reported● Low temperature thermochronology as a new tool for geothermal exploration● Apatite fission track data reveal buried magmatic intrusions● The Mid-Tuscany Metamorphic Ridge is a promising exploration target

Advanced iron boride protective coatings on carbon steels were tested and evaluated, for the first time, in actual corrosion conditions in the geothermal Rittershoffen and Soultz-sous-Forets sites (France) with positive results. Moreover, large size boronized spools demonstrated high performance...

The working fluid in geothermal wells often contains naturally occurring CO2. In an aqueous environment, CO2 forms carbonic acid and subsequently reacts with the binding components of cement, resulting in the loss of strength and early failure. Well cement formulations containing hydroxyapatite...

CO2-Plume Geothermal (CPG) technologies are geothermal power systems that use geologically stored CO2 as the subsurface heat extraction fluid to generate renewable energy. CPG technologies can support variable wind and solar energy technologies by providing dispatchable power, while Flexible CPG...

Geothermal energy has a significant role to play in the global transition to renewable and low-carbon energy systems because of its ability to supply steady and flexible electricity particularly for baseload demand because of its cost competitiveness compared to fossil fuel energy options....

The growing concern about decarbonization of the energy production system led to the use of Renewable Energy Sources (RES). However, RES has the drawback of being inherently intermittent and lack controllability, placing limitations on their use. To avoid such limitations, the exploitation of a...

The growing concern about decarbonization of the energy production system led to the use of Renewable Energy Sources (RES). However, RES has the drawback of being inherently intermittent and lack controllability, placing limitations on their use. To avoid such limitations, the exploitation of a...

Non-condensable gases (NCG) in condensing geothermal flash plants have negative effects as they reduce heat transfer and thus deteriorate vacuum in condenser. Therefore, it is necessary to evacuate the condenser by vacuum pumps which substantially increases the parasitic load of the plant....

In order to overcome the electricity demand in the country and in its effort to reduce the greenhouse gas emission and climate change, South African (SA) government is encouraging research in the field of renewable energy (RE). Higher educational institutions in each province are involve in...

Geothermal plants have been increasingly constructed in recent years to exploit the high geothermal energy potential in Germany in district heating networks at the municipal level. In order to use this potential economically, municipal planners need instruments for designing the district heating...

In order to overcome the electricity demand in the country and in its effort to reduce the greenhouse gas emission and climate change, South African (SA) government is encouraging research in the field of renewable energy (RE). Higher educational institutions in each province are involve in...

Although geothermal energy is globally recognized as a clean and reliable source of heat and electric power its development can inadvertently lead to adverse outcomes that disproportionately disadvantage women. Based on good practices and lessons learned, this report introduces ways that...

"This publication includes a set of 14 case studies on the application of the United Nations Framework Classification for Resources (UNFC) to geothermal energy from Australia, Germany, Hungary, Iceland, Italy, the Netherlands, New Zealand, the Philippines and Russian Federation. The case studies...

Geothermal is a renewable source energy that can be used directly for heating or for power production. Geothermal utilization, particularly power production, may result in some greenhouse gas (GHG) emissions. GHG emissions from geothermal power production is generally small in comparison to...

Hazánk kedvező geológiai viszonyainak köszönhetően a geotermikus energia hasznosítására adottak a feltételek. A geotermikus energia felhasználása az 1960-as évektől lendült fel. Az addigi kitermelés kizárólag egészségügyi és gyógyászati célokat szolgált, ezután jelent...

As the global economy grows, so does the demand for energy. Investment in clean energy projects is increasingly important to help meet these growing energy needs. Clean energy projects are also important for environmental reasons and as part of the battle against climate change. Many clean...

This paper presents a dynamic simulation model and a parametric analysis of a solar-geothermal hybrid cogeneration plant based on an Organic Rankine Cycle (ORC) powered by a medium-enthalpy geothermal resource and a Parabolic Trough Collector solar field. The fluid temperature supplying heat to...

The core objective of this project was to develop a sufficiently large database to allow statistically significant conclusions to be drawn on the success rates of geothermal wells worldwide (expressed as the number of successful wells developed as a proportion of total wells drilled in any given...

This study aims to present an efficient plan for the application of a geothermal energy facility at the building structure planning phase. Energy consumption, energy cost and the primary energy consumption of buildings were calculated to enable a comparison of buildings prior to the application...

This paper defines the maximum possible vertical extent of hydrothermal circulation in granitic crust, and thus the maximum depth within which geothermal reservoirs can be encountered. To evaluate prospective geothermal fields we constructed a geothermal database in northern Honshu, Japan that...

Flooded mine workings have good potential as low-enthalpy geothermal resources, which could be used for heating and cooling purposes, thus making use of the mines long after mining activity itself ceases. It would be useful to estimate the scale of the geothermal potential represented by...

Heat flow and geothermal gradient of the sedimentary succession of the Western Canada Sedimentary Basin (WCSB) are mapped based on a large thermal database. Heat flow in the deep part of the basin varies from 30 mW/m² in the south to high 100 mW/m² in the north. As permeable strata are required...

Increasing energy efficiency should be a concern for both the firm managers and any leader at any level, given that energy efficiency significantly reduce production costs. An important aspect of this is the use of renewable energy sources, in different types of activities, depending on the...

Much attention is now focused on utilizing ground heat pumps for heating and cooling buildings, as well as water heating, refrigeration and other thermal tasks. Modeling such systems is important for understanding, designing and optimizing their performance and characteristics. Several heat...

В статье рассматриваются вопросы экономики и организации строительства объектов малой энергетики, использующих гидроэнергетические ресурсы малых рек,...

The city of Susanville, in response to an unemployment rate exceeding 20 percent and other related community needs, has embarked on a comprehensive effort in community and economic development. To improve the local job market, an effort is underway to enhance the competitive position of the...

In order to develop an initial estimate of the potential competitiveness of low temperature (45 degrees C to 100 degrees C) geothermal resources on the Eastern Coastal Plain, the Center for Metropolitant Planning and Research of The Johns Hopkins University reviewed and compared available energy...

A comparison of ten models for computing the cost of hydrothermal energy is presented. This comparison involved a detailed examination of a number of technical and economic parameters of the various quantitative models with the objective of identifying the most important parameters in the...