Performance evaluation of single stand and hybrid solar water heaters: a comprehensive review

Z Rahimi-Ahar, M Khiadani, L Rahimi Ahar… - Clean Technologies and …, 2023 - Springer
In this review, flat plate and concentrate-type solar collectors, integrated collector–storage
systems, and solar water heaters combined with photovoltaic–thermal modules, solar …

[HTML][HTML] Current scientific progress in solar-assisted vapor compression heat pump technology: Advanced design and configuration, refrigerant, performance …

P Ganesan, TM Eikevik - International Journal of Thermofluids, 2024 - Elsevier
Solar energy is considered a clean and promising source of energy. The vapor compression
heat pump technology is identified as the most suitable and efficient method to fulfill both …

Experimental study on energy, exergy, and exergoeconomic analyses of a novel compression/ejector transcritical CO2 heat pump system with dual heat sources

Y Zhang, X Wei, X Qin - Energy Conversion and Management, 2022 - Elsevier
A novel compression/ejection transcritical CO 2 heat pump system with dual heat sources
(CHP) was proposed in our previous research. This paper experimentally investigates the …

[HTML][HTML] Experimental and numerical analysis of a CO2 dual-source heat pump with PVT evaporators for residential heating applications

E Zanetti, S Bordignon, R Conte, A Bisi… - Applied Thermal …, 2023 - Elsevier
Multi-source energy systems are a promising solution to lower the environmental impact of
the heating and cooling sector and enhance the exploitation of renewable energy sources …

Comprehensive evaluation of the transcritical CO2 ejector-expansion heat pump water heater

Y Wang, Y Yin, F Cao - International Journal of Refrigeration, 2023 - Elsevier
Nowadays, the transcritical CO 2 heat pump water heater is widely used for hot water
production. However, the larger pressure difference of the basic system leads to the huge …

Optimal high-pressure correlation for transcritical CO2 cycle in direct expansion solar assisted heat pumps

HO Reis, TF Paulino, L Machado, AAT Maia… - Journal of Building …, 2024 - Elsevier
Heat demand may be met sustainably by a solar-assisted heat pump that CO 2 as a
refrigerant. This is made possible by the employment of an ecologically benign refrigerant …

Energy, exergy and exergoeconomic evaluation of the air source transcritical CO2 heat pump with internal heat exchanger for space heating

Y Wang, Z Ye, X Yin, Y Song, F Cao - International Journal of Refrigeration, 2021 - Elsevier
Currently, the air source heat pump is widely used for space heating. Although the CO 2 has
great potential in the refrigeration system, the basic transcritical CO 2 heat pump …

Comparative study of geothermal and conventional air conditioner: A case of study for office applications

WM Duarte, TF Paulino, SG Tavares… - Journal of Building …, 2023 - Elsevier
The high cost of electricity has done that the air condition sector search for alternatives to
produce cold efficiently. It is a necessity, especially in Brazil, where 17% of the total …

Energy, economic, and environmental (3 E) examinations of the indirect-expansion solar heat pump water heater system: a simulation-oriented performance …

T Hai, N Delgarm, D Wang, MH Karimi - Journal of Building Engineering, 2022 - Elsevier
In this paper, a simulation-oriented optimization integrated with the multi-objective decision-
making (MODM) model for an indirect-expansion solar-assisted heat pump (IDX-SAHP) …

Development, experimental validation through infrared thermography and applications of a mathematical model of a direct-expansion solar-assisted heat pump with …

HAG Diniz, SI de Melo Resende, AAT Maia, L Machado… - Solar Energy, 2023 - Elsevier
The application of renewable sources, such as solar energy, and the use of ecological
refrigerants in refrigeration and heating systems contribute to more sustainable development …