Experimental analysis of the effects of climate conditions on heat pump system performance

Şahi̇n, Erol; ADIGÜZEL, Nesrin

doi:10.1016/j.energy.2021.123037

Cited by 11 publications

(3 citation statements)

References 34 publications

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“…Global warming and a need for sustainable solutions lead a shift from fossil fuel energy production to renewable energy sources. Attempts to use existing energy sources more efficiently reached very high levels [1]. Heat pumps (HP) offer an increasingly attractive option for further decarbonization [2]- [4].…”

Section: Introductionmentioning

confidence: 99%

“…The impact of the climatic conditions on the system's performance led the engineers to analyze the most influential factors; e.g., temperature and humidity in the atmosphere are the most important climatic parameters that affect the performance of heat pumps [1], [7]- [9]. When ASHP operates at low temperatures, heating capacity, and coefficient of performance (COP) decrease.…”

Section: Introductionmentioning

confidence: 99%

“…Different controlling approaches are used to improve ASHP performance [17]. Sahin and Adiguzel [1] investigated the effects of parameters on HPs and cooling machines. Authors found that studies related to the effect of relative humidity (RH) on the performance of HPs are limited and the RH in the air caused an increased exergy loss in the evaporator of HPs.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Investigation of Heat Pump Efficiency in Baltic States Using TRNSYS Simulation Tool

Kropas

Streckienė

Kirsanovs

et al. 2022

Environmental and Climate Technologies

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A heat pump is one of the most popular energy transformation devices to provide the building with the necessary heating and cooling energy during the cold and warm seasons. Air source heat pumps (ASHP) in building heating and/or hot water systems are becoming more and more attractive these days because they can use renewable energy as an energy source instead of fossil fuels and thus contribute to the fight against climate change. By using an evaporator heat exchanger, ASHP takes the low-potential heat from the ambient air and transforms it into higher-potential heat for building heating and/or hot water preparation. The main problem with this type of energy transformer is the freezing of the evaporator at high outdoor humidity and a temperature close to 0° C when the condensed moisture of the ambient turns to frost on the surface of the evaporator heat exchanger. This phenomenon significantly reduces the efficiency (COP) of the ASHP. Thus, its performance strongly depends on the climatic conditions of the environment in which it operates. This study presents a numerical model of the heat pump under investigation developed with the TRNSYS software. The type of heat pump used in TRNSYS has been adjusted according to the heat pump characteristics provided by the manufacturer. The validated model is used to model the heating system of a building in the three Baltic States. Modeling results under different climatic conditions are presented.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigation of Heat Pump Efficiency in Baltic States Using TRNSYS Simulation Tool

Kropas

Streckienė

Kirsanovs

et al. 2022

Environmental and Climate Technologies

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Solid Desiccant Heat Pump Fresh Air Unit using Composite Silica Gel

Yang,

Guo,

2024

J. Therm. Sci.

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Design and analysis of thermoacoustic air source heat pump water heaters

Prashantha,

Kuwar,

Narasimham

et al. 2024

Int. J. Air-Cond. Ref.

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Thermoacoustic air-to-water air source heat pumps (TAWASHP) are the eco-friendly, simple, compressor less, low cost and likely looking future substitute for the existing compressor-based heat pumps. In this work, the design optimization of the 1-kW TAWASHP with helium for the temperature difference of 15 to 70 K for pumping heat from the atmospheric air to water using the linear thermoacoustic concepts was discussed. The optimized design can fit for both cooling and water heating applications without wasting the heat rejection to the surrounding atmosphere, rather supplied to the insulated hot water tank. The optimized one-fourth wavelength resonator TAWASHP shows the coefficient of performance of 1.1 to 2.34. The theoretical results are validated with the DeltaEC software results, and the results are in concurrence with each other. The DeltaEC predicts the TAWASHP can supply 1.55 to 3.35 kW of heat to water, which is equivalent to 37.3 to 80.3 kWh of heat energy per day.

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Experimental analysis of the effects of climate conditions on heat pump system performance

Cited by 11 publications

References 34 publications

Investigation of Heat Pump Efficiency in Baltic States Using TRNSYS Simulation Tool

Investigation of Heat Pump Efficiency in Baltic States Using TRNSYS Simulation Tool

Solid Desiccant Heat Pump Fresh Air Unit using Composite Silica Gel

Design and analysis of thermoacoustic air source heat pump water heaters

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