Optimization of Parameters of a Vertical Ground Heat Exchanger in a Geothermal Heating System

Buildings, Год журнала: 2024, Номер 14(12), С. 3722 - 3722

Опубликована: Ноя. 22, 2024

This study presents the results of an original on influence selected parameters thermal efficiency a vertical ground heat exchanger (VGHE) in ground-source pump (GSHP) system. The research objective was analysis specific q, received by U-shaped element made plastic pipes placed borehole, depending seven direct influencing factors: temperature Tg; soil conductivity coefficient λg; well material λm; heating medium (glycol) Tw at feed to and its flow rate M; internal diameter dw; distances between external walls L. carried out for climatic conditions Podlasie Voivodeship (Poland). Based computational experiment obtained using TRNSYS numerical environment, deterministic mathematical model this relationship developed, effects factors q exchanger, element, were analysed. model, contribution each parameter determined. It turned that changes values Tg (X1), λg (X2), λm (X3), M (X5), dw (X6) L (X7) from lower upper level caused increase 34.04, 7.90, 15.20, 55.42, 6.58 24.26%. Only factor (X4), with such change, decrease tested 44.22%. geothermal system also optimized according energy criterion method Matlab environment. information may be useful scientists, designers, producers consumers systems based pumps as source.

Язык: Английский

The thermal behavior and ice saturation of a developed zero-cement backfill used in a novel technique in Arctic mining

Applied Thermal Engineering, Год журнала: 2024, Номер 263, С. 125341 - 125341

Опубликована: Дек. 26, 2024

Язык: Английский