Results 61 to 70 of about 210,641 (265)
Development and application of test cases for comparing vertical ground heat exchanger models [PDF]
, 2007 The main objective of this paper is to establish a set of test cases for analytical verifications and intermodel comparisons of ground heat exchanger (GHX) models used in building simulation programs. Several test cases are suggested.
Bernier, M. +2 more
core
Permafrost and Periglacial Processes, EarlyView.ABSTRACT Using a large and novel array of instruments on five rockwalls in northern Gaspesia, their respective surface energy balances were calculated and their thermal regimes were measured and modeled to depths exceeding the seasonal frost penetration.
Tom Birien, Francis Gauthier
wiley +1 more source
The analysis of long-term borehole heat exchanger system exploitation
Computer Assisted Methods in Engineering and Science, 2017 The key issue in designing borehole heat exchangers (BHE) is the long-term performance of the ground source heat pump (GSHP) systems. The performance directly reflects economic profitability and depends on a large number of parameters including rock ...
Marek Jaszczur, Tomasz Śliwa
doaj +1 more source
Can you take the heat? – Geothermal energy in mining [PDF]
, 2014 In 2013, there are less than 20 documented examples of operational geothermal systems on mine sites worldwide. This is surprising, since on remote mine sites, where fuels may have to be shipped in over great distances, heating and cooling from low ...
Preene, M., Younger, P.L.
core +1 more source
The Hidden Costs of Coffee Production in the Eastern African Value Chains
Sustainable Development, EarlyView.ABSTRACT There is increasing recognition that significant hidden costs associated with agrifood systems are not reflected in market prices. Coffee is among the three most traded agricultural commodities in the world and supports the livelihoods of more than 30 million smallholder households.
Annet Adong +3 more
wiley +1 more source
Parametric Investigation of a Ground Source CO2 Heat Pump for Space Heating
Energies, 2021 The objective of the present study is the parametric investigation of a ground source heat pump for space heating purposes with boreholes. The working fluid in the heat pump is CO2, and the geothermal field includes boreholes with vertical heat ...
Evangelos Bellos, Christos Tzivanidis
doaj +1 more source
Sustainable Development, EarlyView.ABSTRACT Community‐based adaptation scholars and practitioners acknowledge that power asymmetries pose significant barriers to project impact. Nevertheless, there is little research on the role of the global political economy as the root cause of vulnerability.
Tom Selje, Alexandra Klepp, Boris Heinz
wiley +1 more source
Geothermal Boreholes in Poland—Overview of the Current State of Knowledge
Energies, 2021 Geothermal energy can be useful after extraction from geothermal wells, borehole heat exchangers and/or natural sources. Types of geothermal boreholes are geothermal wells (for geothermal water production and injection) and borehole heat exchangers (for ...
Tomasz Sliwa +4 more
doaj +1 more source
Efficiency of closed loop geothermal heat pumps: A sensitivity analysis [PDF]
, 2014 Geothermal heat pumps are becoming more and more popular as the price of fossil fuels is increasing and a strong reduction of anthropogenic CO2 emissions is needed.
Al-Khoury +49 more
core +1 more source
Groundwater Monitoring &Remediation, EarlyView.Abstract Characterizing the concentration and mass flux spatial distributions at sites with complex hydrogeologic conditions is critical to evaluate the fate and transport of contaminants, as well as to design effective remediation programs. PFAS (per‐ and polyfluoroalkyl substances)‐contaminated sites are even more complex due to the large number of ...
W. Andrew Jackson +8 more
wiley +1 more source