A novel low enthalpy geothermal energy system based on ground freezing probes

Carotenuto, A.; Massarotti, Nicola; Mauro, Alessandro; Normino, Gennaro; Luccio, A. Di; Molisso, G.; Cavuoto, F.

doi:10.1201/9781003031628-5

Cited by 1 publication

(1 citation statement)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Despite the difficulty often encountered in finding an available surface on which to lay the probes on site, Kotarela et al [24] highlight that the combined use of a photovoltaic system and geothermal heat pump is one means of reducing dependence on fossil fuels while simultaneously avoiding overloading of the electricity grid. Indeed, in Carotenuto et al [25,26], innovative ground systems are analysed using the finite elements method. In this geothermal configuration, freezing probes are inserted in foundation pylons to exploit the low enthalpy of the ground.…”

Section: Introductionmentioning

confidence: 99%

The Use of Ground Source Heat Pump to Achieve a Net Zero Energy Building

D’Agostino

MELE²,

Minichiello

et al. 2020

Energies

View full text Add to dashboard Cite

Currently, ground source heat pump (GSHP) technology is being studied, as the use of the ground as a source of renewable energy allows significant energy savings to be obtained. Therefore, it is useful to quantify how these savings help to achieve the energy balance of a Net Zero Energy Building (NZEB) compared to an air source heat pump or a condensing boiler coupled to a chiller. This paper assesses how these savings affect the number of photovoltaic panels installed on the roof of a building to obtain the NZEB target. The study is conducted by dynamic simulation for a building used as a bed and breakfast, virtually placed in two Italian towns. The energy savings and reduction of CO2 emissions, the percentage of renewable energy used, and the photovoltaic surface needed are assessed. Finally, the discounted payback period is calculated. The results show that the GSHP, unlike the systems to which it is compared, allows an NZEB to be obtained by balancing yearly energy consumption with energy production systems which only use on-site renewable energy sources (by exploiting the surface available on the roof) for both of the climatic conditions considered. GSHP also allows primary energy requests equal to or less than 57 kWh/m2 to be obtained.

show abstract

Section: Introductionmentioning

confidence: 99%