scholarly journals Aquifer thermal energy storage: a numerical simulation of Auburn University field experiments

1980 ◽  
Author(s):  
C. Tsang ◽  
T. Buscheck ◽  
C. Doughty
Keyword(s):  
Numerical Simulation ◽  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Field Experiments ◽  
Auburn University ◽  
Aquifer Thermal Energy Storage

Numerical Simulation of Thermal Energy Storage Experiment Conducted by Auburn University

Ground Water ◽  
1982 ◽  
Vol 20 (5) ◽  
pp. 569-576 ◽  
Author(s):  
J. F. Sykes ◽  
R. B. Lantz ◽  
S. B. Pahwa ◽  
D. S. Ward
Keyword(s):  
Numerical Simulation ◽  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Auburn University

Field Experiments in Aquifer Thermal Energy Storage

1985 ◽  
Vol 107 (4) ◽  
pp. 322-325 ◽  
Author(s):  
J. G. Melville ◽  
F. J. Molz ◽  
O. Gu¨ven
Keyword(s):  
Energy Storage ◽  
Ambient Temperature ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Energy Recovery ◽  
Large Scale ◽  
Field Experiments ◽  
Aquifer Thermal Energy Storage ◽  
Scale Field ◽  
Large Scale Field

Large scale field experiments in aquifer thermal energy storage (ATES) were conducted between September, 1976, and November, 1982. Volumes of 7,700 m3, 54,800 m3, 58,000 m3, 24,400 m3, 58,000 m3, and 58,680 m3 were injected at average temperatures of 35.0° C, 55.0° C, 55.0° C, 58.5° C, 81.0° C, and 79.0° C, respectively, in an aquifer with ambient temperature of 20.0° C. Based on recovery volumes equal to the injection volumes, the respective energy recovery efficiencies were 69, 65, 74, 56, 45, and 42 percent. Primary factors in reduction of efficiency were aquifer nonhomogeneity and especially convection due to buoyancy of the injection volumes.

Environmental impacts of aquifer thermal energy storage investigated by field and laboratory experiments

2013 ◽  
Vol 4 (2) ◽  
pp. 77-89 ◽  
Author(s):  
Matthijs Bonte ◽  
Boris M. Van Breukelen ◽  
Pieter J. Stuyfzand
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Temperature Effects ◽  
Laboratory Experiments ◽  
Potential Temperature ◽  
Arsenic Concentration ◽  
Observation Data ◽  
Aquifer Thermal Energy Storage ◽  
Field Investigations

Aquifer thermal energy storage (ATES) uses groundwater to store energy for heating or cooling purposes in the built environment. This paper presents field and laboratory results aiming to elucidate the effects that ATES operation may have on chemical groundwater quality. Field data from an ATES site in the south of the Netherlands show that ATES results in chemical quality perturbations due to homogenisation of the initially present vertical water quality gradient. We tested this hypothesis by numerical modelling of groundwater flow and coupled SO4 transport during extraction and injection of groundwater by the ATES system. The modelling results confirm that extracting groundwater from an aquifer with a natural quality stratification, mixing this water in the ATES system, and subsequent injection in the second ATES well can adequately describe the observation data. This mixing effect masks any potential temperature effects in typical low temperature ATES systems (<25 °C) which was the reason to complement the field investigations with laboratory experiments focusing on temperature effects. The laboratory experiments indicated that temperature effects until 25 °C are limited; most interestingly was an increase in arsenic concentration. At 60 °C, carbonate precipitation, mobilisation of dissolved oxygen concentration, K and Li, and desorption of trace metals like As can occur.

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