Results 101 to 110 of about 5,412 (233)

The Living Rainforest Sustainable Greenhouses [PDF]

open access: yes
The Living Rainforest (www.livingrainforest.org) is an educational charity that uses rainforest ecology as a metaphor for communicating general sustainability issues to the public.
Bot, G.P.A.   +4 more
core   +2 more sources

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  

Thermal Performance Analyses of Multiborehole Ground Heat Exchangers

open access: yesGeofluids, 2017
Geothermal energy known as a clean, renewable energy resource is widely available and reliable. Ground heat exchangers (GHEs) can assist the development of geothermal energy by reducing the capital cost and greenhouse gas emission. In this paper, a novel
Wanjing Luo   +3 more
doaj   +1 more source

Određivanje optimalne veličine vertikalnog izmjenjivača topline u tlu [PDF]

open access: yes, 2009
The heat pumps coupled to the borehole heat exchangers (BHE) can serve for heating and/or cooling of buildings. Optimal sizing of BHE is important because of high drilling costs and importance of matching borehole thermal capacity with the capacity of ...
Miroslav RUŠEVLJAN   +2 more
core   +1 more source

Coupling of energy conversion systems and wellbore heat exchanger in a very deep oil well [PDF]

open access: yes, 2016
The conventional geothermal power plants use the reinjection wells mostly to avoid the depletion of the geothermal reservoir gathering in the underground of the produced brine.
Alimonti, Claudio   +3 more
core   +1 more source

Thermal Response Test for Optimizing Geothermal Applications in Romania

open access: yesModelling in Civil Environmental Engineering
The Thermal Response Test – abbreviated as TRT – is a standardized procedure for geothermal heat pump systems with closed-loop heat exchangers. The test enables the determination of key physical properties of the ground – thermal conductivity and ...
Kivanc Bahadir, Virgil Florescu
doaj   +1 more source

Energetic Efficiency of a Deep Borehole Heat Exchanger Adapted from a Freezing Borehole Based on a Long-Term Thermal Response Test

open access: yesEnergies
This paper describes the characteristics of a thermal response test and presents the results of the test conducted on a borehole at the freezing shaft in Poland.
Tomasz Sliwa   +4 more
doaj   +1 more source

Application potential of ground-coupled heat pumps for multi-storey office buildings in Hong Kong [PDF]

open access: yes, 2011
In this paper, the application potential of ground-coupled heat pumps (GCHP) in a multi-storey office building in Hong Kong was investigated. It was found that within the limited land area occupied by the building, the GCHP could only handle the cooling ...
Lam, HN, Lee, CK
core  

IMPACT OF GEOTHERMAL GRADIENT ON GROUND SOURCE HEAT PUMP SYSTEM MODELING

open access: yesRudarsko-geološko-naftni Zbornik, 2014
ndisturbed ground temperature is one of the most crucial thermogeological parameters needed for shallow geothermal resources assessment. Energy considered to be geothermal is energy stored in the ground at depths where solar radiation has no effect.
Tomislav Kurevija   +2 more
doaj  

Assessing the applicability of thermal response testing to energy piles

open access: yes, 2014
Deep foundations are increasingly being used, not just to carry structural loads, but also to act as heat exchangers as part of a ground source heat pump system.
Brettmann, T.   +3 more
core  

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