The influence of the type of heat exchanger on the environmental and economic efficiency of brine-to-water heat pump

Żelazna, Agnieszka; Kosaryha, Dmytro

doi:10.1063/5.0158826

Cited by 1 publication

(2 citation statements)

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“…This recommendation varies from the literature [42], where only the construction aspect of ground heat exchangers (GHEs) operating in the same location was analyzed. The focus on the operation stage is crucial for the holistic perspective of LCA results; therefore, the current study supplements the scope of the former analysis with key issues that were not originally fully developed.…”

Section: Wsm Resultsmentioning

confidence: 99%

“…Therefore, the aim of this work was to perform a multi-criteria analysis (MCA) based on LCA methodology for a GSHP cooperating with various types of ground exchangers (helix, vertical and horizontal) ensuring the effective heating of a residential building located in Poland, in order to select the most favorable variant. The performed analysis was an extended version of the study presented in [42], where the inventory of heat exchangers was completed only for the construction stage. In this analysis, more dimensions options as well as the whole life cycle period were included, and the seasonal coefficients of performance (SCOP) of the systems were considered, which gives a better metric for comparison.…”

Section: Introductionmentioning

confidence: 99%

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Multi-Criteria Study on Ground Source Heat Pump with Different Types of Heat Exchangers

Żelazna,

Gołębiowska,

Kosaryha

2024

Energies

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Heat pumps are currently one of the most frequently applied heat sources in residential buildings. Ground source heat pumps are more reliable than air source heat pumps in terms of energy efficiency, especially in colder climates. However, they are more expensive and involve increased material inputs; therefore, multi-criteria analyses taking into account environmental and economic aspects seem necessary for the green design of these systems. The aim of this work was to analyze the environmental and economic impacts of the ground source heat pump providing heating for a family house located in eastern Poland, cooperating with three types of ground heat exchangers (each in two sizing options): helix, vertical and horizontal. The multi-criteria analysis was based on the life cycle assessment methodology using IMPACT 2002+ and life cycle costs methods. The lowest environmental impact was reported for the variants with vertical ground heat exchangers, mainly due to their high efficiency in the operation stage. On the other hand, the lowest economic impact was observed for the horizontal heat exchangers, which are not demanding in terms of material and construction costs. Final recommendations based on multi-criteria analysis propose the vertical probes as a sustainable solution, with a weighted sum indicator in the range 0.085–0.297 on 0–1 scale.

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Section: Wsm Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%