Sensitivity analysis using simulations for a ground source heat pump – implementation on a solar passive house

Ilisei, Gheorghe; Cătălina, Tiberiu; Gavriliuc, Robert

doi:10.1051/e3sconf/201911101070

Cited by 2 publications

(1 citation statement)

References 6 publications

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“…Table 3 summarizes the important literature on the application of a techno-economic analysis and ground source heat pump optimization. To forecast heat demand, software services such as EnergyPlus, Design Builder, and TRNSYS have been widely used [91][92][93]. Additionally, a standalone mathematical code for calculating the heat demand has also been reported [92].…”

Section: Techno-economic Analysismentioning

confidence: 99%

A Critical Review on the Use of Shallow Geothermal Energy Systems for Heating and Cooling Purposes

Ahmed

Assadi

Mehrjerdi³

et al. 2022

Energies

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The reduction of CO2 emissions has become a global concern. In this regard, the EU intends to cut CO2 emissions by 55% by 2030 compared to those of 1990. The utilization of shallow geothermal energy (SGE) in EU countries is considered the most effective measure for decarbonizing heating and cooling. SGE systems utilize heat energy collected from the earth’s crust to provide secure, clean, and ubiquitous energy. This paper provides a literature review on the use of SGE for heating and cooling purposes. The latest advances in materials, new innovative structures, and techno-economic optimization approaches have been discussed in detail. Shallow geothermal energy’s potential is first introduced, and the innovative borehole structures to improve performance and reduce installation cost is outlined. This is followed by an extensive survey of different types of conventional and thermally enhanced collectors and grouts. Attention is mainly given to the techno-economic analysis and optimization approaches. In published case studies, the least economic break-even point against fossil fuel-based heating systems occurs within 2.5 to 17 years, depending on the local geological conditions, installation efficiency, energy prices, and subsidy. Ground source heat pumps’ cost-effectiveness could be improved through market maturity, increased efficiency, cheap electricity, and good subsidy programs.

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Section: Techno-economic Analysismentioning

confidence: 99%

A Critical Review on the Use of Shallow Geothermal Energy Systems for Heating and Cooling Purposes

Ahmed

Assadi

Mehrjerdi³

et al. 2022

Energies

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Potential of CO2 Emission Reduction via Application of Geothermal Heat Exchanger and Passive Cooling in Residential Sector under Polish Climatic Conditions

Fidorów-Kaprawy

Stefaniak

2022

Energies

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The article summarizes the results of the 25-year time horizon performance analysis of the ground source heat pump that serves as a heat source in a detached house in the climatic conditions that prevail in Wrocław, Poland. The main aim is to assess the potential of ground regeneration and reduction of CO2 emission by passive cooling application. The study adds value to similar research conducted worldwide for various conditions. The behavior of the lower source of the heat pump was simulated using EED software. The ground and borehole properties, heat pump characteristics, heating and cooling load, as well as the energy demand for domestic hot water preparation have been used as input data. Based on the brine temperatures for all analyzed cases including the ground with lower and higher values of conductivity and heat capacity, the borehole filler of inferior and superior thermal properties, and the passive cooling option turned on and off, the seasonal efficiencies of the heat pump have been calculated. The energy and emission savings calculations are based on the values obtained. The application of passive cooling reduces the brine temperature drop by 0.5 K to over 1.0 K in consecutive years in the analyzed cases and the thermal imbalance by 65.0% to 65.9%. Electric energy savings for heating and domestic hot water preparation reach 4.5%, but the greatest advantage of the system is the possibility of almost emission-free colling the living spaces which allows reducing around 33.7 GWh of electric energy and 1186–1830 kg of CO2 emission for cooling.

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Sensitivity analysis using simulations for a ground source heat pump – implementation on a solar passive house

Cited by 2 publications

References 6 publications

A Critical Review on the Use of Shallow Geothermal Energy Systems for Heating and Cooling Purposes

A Critical Review on the Use of Shallow Geothermal Energy Systems for Heating and Cooling Purposes

Potential of CO2 Emission Reduction via Application of Geothermal Heat Exchanger and Passive Cooling in Residential Sector under Polish Climatic Conditions

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