Results 21 to 30 of about 5,412 (233)
Applied Sciences, 2021 With the increasing engineering applications of geothermal borehole heat exchangers (BHEs), accurate and reliable mathematical models can help advance their thermal design and operations. In this study, an analytical model with a time-dependent heat flux
Mohammed A. Hefni +9 more
doaj +1 more source
Energies, 2019 In this study, the thermal behavior of the coaxial and double U borehole heat exchangers was investigated using numerical simulations in both the long- and short-term.
Davide Quaggiotto +10 more
doaj +1 more source
Porous materials in building energy technologies—a review of the applications, modelling and experiments [PDF]
, 2018 Improving energy efficiency in buildings is central to achieving the goals set by Paris agreement in 2015, as it reduces the energy consumption and consequently the emission of greenhouse gases without jeopardising human comfort.
Esfahani, Javad Abolfazli +2 more
core +1 more source
Influence of sustainable load imbalance ratio of heat exchanger of medium-shallow borehole
Youqicang pingjia yu kaifa, 2022 The heat exchanger of medium-shallow borehole which have a deeper depth than the traditional ground source heat pump system and can sustain a notable load imbalance ratio and widen the application scope of geothermal energy.
ZHANG Tian'an +5 more
doaj
Energies, 2021 The objective of this work is to analyze a gas injection borehole heat exchanger coupled with a desiccant assisted air conditioning system during cooling and heating operation.
Finn Richter +4 more
doaj +1 more source
Repurposing of disused shale gas wells for subsurface heat storage: preliminary analysis concerning UK issues [PDF]
, 2016 Development of many wells is envisaged in the UK in coming decades to exploit the abundant shale gas resource as fuel and petrochemical feedstock. Forward planning is therefore warranted regarding reuse of the resulting subsurface infrastructure after ...
Westaway, Rob
core +1 more source
Application of large underground seasonal thermal energy storage in district heating system: A model-based energy performance assessment of a pilot system in Chifeng, China [PDF]
, 2018 Seasonal thermal energy storage (STES) technology is a proven solution to resolve the seasonal discrepancy between heating energy generation from renewables and building heating demands.
Guo, Fang +4 more
core +2 more sources
A Model for a Borehole Heat Exchanger Working with CO2
Energy Procedia, 2014 AbstractGround source heat pumps are a valid technology for heating and cooling in residential application, since they allow to have a stable temperature of the heat source/sink by means of ground heat exchangers, generally named as Boreholes. In particular, U- pipe heat exchangers are interesting when working with two-phase fluids, especially during ...
R. MASTRULLO +3 more
openaire +4 more sources
Study of Methods and Development of Technological Scheme for Heat Removal from Rock Waste Dump [PDF]
, 2017 The aim of this paper is to study the methods and develop technological scheme for thermal energy removal from coal mine rock waste dumps. The prospects of renewable energy sources development in Ukraine are analyzed.
Saik, Pavlo
core +1 more source
Experimental testing of cooling internal loads with a radiant wall [PDF]
, 2018 Thermally activated building systems (TABS) consist of pipes or ducts embedded in the building structure. This is a well-known technology for its capability to reduce energy use for cooling buildings.
Cabeza, Luisa F. +4 more
core +2 more sources