Comparison of solar assisted heat pump systems for heating residences: A review

Sezen, Kutbay; Güngör, Afşin

doi:10.1016/j.solener.2022.11.051

Cited by 27 publications

(7 citation statements)

References 82 publications

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“…In other hand, as the collector temperature is lower than the ambient temperature, this deduces more heat collection capacity, thus better efficiency. This discussion is in line with revealed results reviewed by (Sezen and Gungor, 2023) showing that DX-SAHP are preferred under 400 W/m 2 irradiances.…”

Section: Influence Of Solar Radiationsupporting

confidence: 90%

“…Glazed flat-plat solar collector is usually used as evaporator in DX-SAHP system. In order to increase solar heat collection and improve consequently the system performance, glazed collector type is replaced by an unglazed one (Sezen and Gungor, 2023). In such system, the heat necessary to evaporate the refrigerant fluid is collected from solar energy in high solar radiation availability.…”

Section: Introductionmentioning

confidence: 99%

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Performance of a direct-expansion solar-assisted heat pump for domestic hot water production in Algeria

Benchamma,

Missoum,

Belkacem

2024

Int. J. Renew. Energy Dev.

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The focus of this study is to investigate the energy performance of a direct-expansion solar-assisted heat pump water heating system (DX-SAHPWH). The system consists of an unglazed solar collector-evaporator, which can absorb heat from solar energy and air ambient simultaneously, a condenser in the form of a coil immersed in a hot water storage tank, a thermostatic expansion valve and a hermetic reciprocating compressor. The performance of the heat pump system is evaluated using a developed mathematical model under Matlab code. The modelling method is based on lumped and distributed parameter approach of different system components. Numerical calculations were carried-out to study the influence of different parameters, such as ambient temperature, solar radiation intensity and polytropic index on the system performance. Additionally, in order to evaluate the long-term system performance, the system’s model was applied on a case study of a single-family building located in Djelfa (Algeria), which represents the coldest arid region of the country. The results showed that the solar radiation intensity and ambient temperature have significant effects on the heat pump performance. A COP of 5.9 and a collector-evaporator efficiency of 1.9 were obtained at high solar radiation of 850 W/m2 resulting in lower heating time (29 min). In addition, results revealed that the system can operate even at lower ambient temperature due to its ability to take advantage of heat from the ambient air. The results from the case study gave a COP ranging from 2.3 to 3.8, which enhance the promising adoption of this system in domestic hot water production to respond to people daily life needs with clean, abundant and renewable energy.

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Section: Influence Of Solar Radiationsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Performance of a direct-expansion solar-assisted heat pump for domestic hot water production in Algeria

Benchamma,

Missoum,

Belkacem

2024

Int. J. Renew. Energy Dev.

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“…In view of the high energy, economic and environmental potential of combining different types of renewable energy sources [5,6], many hybrid solar-assisted heat pump installations have also been studied and analyzed in recent years [7], both for heating and cooling [8][9][10], as well as for domestic hot water preparation [11][12][13], in different types of buildings [2,14] located in different climatic and ambient conditions [15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Simulation and Performance Analysis of an Air-Source Heat Pump and Photovoltaic Panels Integrated with Service Building in Different Climate Zones of Poland

Ołtarzewska,

Krawczyk

2024

Energies

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In recent years, due to the global energy crisis, the idea of a photovoltaic-assisted air-source heat pump (PV-ASHP) has become increasingly popular. This study provides a simulation in TRNSYS and the analysis of the use of a PV-ASHP system in a service building in different climate zones of Poland. For each of the six cities—Kolobrzeg, Poznan, Krakow, Warsaw, Mikolajki, and Suwalki, the effect of changing five system parameters (area, efficiency, type, and location of photovoltaic panels, and the use of a heat pump control strategy) on the amount of energy generated and consumed was determined. We also estimated the extent to which the photovoltaic panels could cover the energy requirements for the heat pump (HP) operation and the system could provide thermal comfort in the service room. Finally, a simplified analysis of the operating costs and capital expenditures was made. The results highlighted the issue of the incoherence of renewable energy sources and the need to store surplus energy under Polish climatic conditions. Abandoning the HP control strategy increased energy consumption by 36–62%, depending on the location and Variant, while the change in the place of the PV panels on the roof slope reduced energy generation by 16–22%. When applied to an ASHP in a service building, the use of PV panels to power it seems to be cost-effective.

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“…Unfortunately, heating provided by burning fossil fuels with high carbon emissions is still the most widely used method in many countries and regions, nonetheless heat pumps consuming electricity, which are known as energy efficient heating systems, are replacing these traditional systems day by day [4]. Moreover, heat pumps, which can provide cooling as well as heating, stand out as a general air conditioning solution in most hot climate regions, as they offer a single system that can meet the summer and winter demands of a building [5,6]. Heat pumps also provides commercial benefits by using it for drying agricultural products [7].…”

Section: Introductionmentioning

confidence: 99%

Operation Parameters Variation of Air Source Heat Pump According to the Outdoor Temperature

Sezen¹

2023

Politeknik Dergisi

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Air source heat pumps (ASHP), known as energy efficient systems, emerge as environmentally friendly and economical solutions for building heating. Unfortunately, the operating parameters of ASHPs and accordingly their performance are directly affected by the daily and seasonal temperature changes of the outside air. In this study, change in operation parameters of a selected ASHP with 3.4kW nominal heating capacity is investigated with a calculation method based on the logarithmic mean temperature difference, between -10°C to 18°C outdoor temperature range with 2°C steps, at constant compressor power. The study is verified with published COP data of the manufacturer. Results are shared with graphs that give the variation of refrigerant evaporation and condensation temperature and pressure, COP, and condenser heating load according to outdoor air temperature. A raise from -10°C to 18°C in outdoor temperature, increases the COP value from 3.38 to 5.49. Detection of the increase in evaporation pressure in parallel with the outdoor temperature may allow easy control of the refrigerant charge level with a manometer. This study can be a useful guide for researchers who aim to determine the outdoor temperature dependent operating parameters of an ASHP and for technical personnel who need this information in fields.

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Comparison of solar assisted heat pump systems for heating residences: A review

Cited by 27 publications

References 82 publications

Performance of a direct-expansion solar-assisted heat pump for domestic hot water production in Algeria

Performance of a direct-expansion solar-assisted heat pump for domestic hot water production in Algeria

Simulation and Performance Analysis of an Air-Source Heat Pump and Photovoltaic Panels Integrated with Service Building in Different Climate Zones of Poland

Operation Parameters Variation of Air Source Heat Pump According to the Outdoor Temperature

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