Results 81 to 90 of about 1,699,907 (222)

Energy Optimization of an Installation of Reversible Geothermal Heat Pump

open access: yesChemical Engineering Transactions, 2011
Abstract preview not available - see full-text PDF article.
Fernando Cerdeira   +3 more
openaire   +2 more sources

HEAT PUMP SYSTEM EFFICIENCY COMPARISON OF DIFFERENT RENEWABLE ENERGY SOURCES – A FAMILY HOUSE CASE STUDY IN ZAGREB CITY AREA

open access: yesRudarsko-geološko-naftni Zbornik, 2018
Wider Zagreb city area, capital city of Republic of Croatia, has significant potential for major implementation of geothermal heat pump systems in not just the residential sector, but in commercial sector as well. Geothermal heat pumps often cumulatively
Marija Macenić   +2 more
doaj   +1 more source

The Fractal Characteristics of Rough‐Fractured Rock Masses Based on THM Multi‐Field Coupling

open access: yesEngineering Reports, Volume 8, Issue 10, October 2026.
This study constructs an intelligent Thermo‐Hydro‐Mechanical (THM) multi‐field coupling model for rough fractured rock masses. The innovation of the intelligent THM model lies in the integration of deep reinforcement learning and the adaptive fractal grid method.
Xiaolin Wu   +3 more
wiley   +1 more source

Numerical modelling of multiple standing column wells applied to geothermal heating and cooling in UK buildings [PDF]

open access: yes
Standing column wells (SCWs) have the potential to deliver much higher rates of heat transfer to geothermal heating and cooling systems in buildings via heat pumps than conventional vertical borehole heat exchange arrays.
Ng, Bobo
core  

Low-potencial Earth thermalEnergy Utilization in Heat Pump Systems [PDF]

open access: yesActa Montanistica Slovaca, 2006
The underground in the first approx. 100 m is well suited for supply and storage of thermal energy. The climatic temperature change over the seasons is reduced to a steady temperature at 10-20 m. With further depth, the temperatures increase according to
Marina Sidorová, Gabriel Wittenberger
doaj  

Perspective of Shallow Geothermal Systems in the Republic of Croatia [PDF]

open access: yesE3S Web of Conferences
Owing to its favourable geological and hydrogeological conditions, the Republic of Croatia possesses substantial potential for the exploitation of shallow geothermal energy.
Soldo Vladimir   +4 more
doaj   +1 more source

A Review on Carbon Sequestration Techniques From Geological to Biological Methods: Mechanisms, Methods, and Future Perspectives

open access: yesEngineering Reports, Volume 8, Issue 10, October 2026.
This study reviews CO2 storage methods: geological (depleted reservoirs, saline aquifers, salt caverns, basalt), oceanic (dissolution, hydrates, phytoplankton), and biological (microalgae like Chlorella and Spirulina with 10–50× higher capture than plants; MICP by Sporosarcina pasteurii).
Mohmmadreza Alipour   +3 more
wiley   +1 more source

Geothermal Information Dissemination and Outreach [PDF]

open access: yes, 2005
Project Purpose To enhance technological and topical information transfer in support of industry and government efforts to increase geothermal energy use in the United States (power production, direct use, and geothermal groundsource heat pumps). Project
Ted J. Clutter, Geothermal Resources Council Executive Director
core   +1 more source

Modular Geothermal Heat Pumps

open access: yes, 2017
The goal of this MQP was to design a modular geothermal heat pump system. Existing geothermal heat pumps require specialized equipment for installation, and it is not feasible to conduct maintenance on the ground portion of the system once it is ...
Ericson, Zachary Michael   +2 more
core   +2 more sources

Study of regularities of changes in the temperature near the U-shaped ground heat exchangers

open access: yesҚарағанды университетінің хабаршысы. Физика сериясы, 2015
The article considers the results of a study heat transfer process is in ground heat exchangers, used for geothermal heat pumps. At the research facility performed experiments and calculations, confirming about the best of thermophysical indicators of ...
N.N. Shuyushbayeva   +6 more
doaj  

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