Performance degradation of air source heat pumps under faulty conditions

Mauro, A.W.; Pelella, F.; Viscito, Luca

doi:10.1016/j.csite.2023.103010

Cited by 14 publications

(3 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The coefficient of performance (COP) of the HP is the ratio of the produced heating load (Q heat ) to the electrical demand (P el ) [36]:…”

Section: Energy Balances Of Heat Pump Systemsmentioning

confidence: 99%

“…In the remaining, the main equations that are required for the simulation of the cycle are provided. The thermal input in the system (Qin) is given as [36]:…”

Section: Thermodynamic Modeling Of the Heat Pump Cyclementioning

confidence: 99%

“…It is assumed that there are no losses in the expansion of the throttling valve [36]: The thermal input in the system (Q in ) is given as [36]:…”

Section: Thermodynamic Modeling Of the Heat Pump Cyclementioning

confidence: 99%

See 2 more Smart Citations

Dynamic Energy Analysis of Different Heat Pump Heating Systems Exploiting Renewable Energy Sources

et al. 2023

View full text Add to dashboard Cite

Renewable energy source-fed heat pumps (HPs) may perform up to very high-efficiency standards, offering a promising tool in the wider residential heat decarbonization effort. In this context, this paper investigates different heating configurations utilizing various renewable thermal sources in conjunction with an HP-based system in order to determine the optimal configuration in terms of efficiency, using an existing, fully functioning residential building in Zaragoza, Spain, as our case study, comprising 40 dwellings. Four different HP configurations are investigated:, (i) an air-source system, (ii) a ground-source system, (iii) a dual-source system with solar thermal collectors, and (iv) a triple-source system based on solar, geothermal, and ambient sources. For the purpose of such investigation, detailed dynamic energy simulations are conducted through the use of the INTEMA.building tool (developed in Modelica), applying a multi-objective optimization process that aims at minimizing both the annual electricity consumption and the net present cost. It is demonstrated that the renewable thermally driven HPs are more efficient than the conventional, air-source ones, with the seasonal coefficient of performance increasing by 9.98% (ground source), 4.57% (dual source), and 17.40% (triple source), compared to the air-source heat pump system. Finally, it is revealed (via integrated techno-economic analyses) that the most effective and economical design is the dual source system, while the most expensive is the ground-source configuration. These findings can guide the ongoing design efforts on green residential heat solutions at both research and commercial implementation level.

show abstract

“…The coefficient of performance (COP) of the HP is the ratio of the produced heating load (Q heat ) to the electrical demand (P el ) [36]:…”

Section: Energy Balances Of Heat Pump Systemsmentioning

confidence: 99%

“…In the remaining, the main equations that are required for the simulation of the cycle are provided. The thermal input in the system (Qin) is given as [36]:…”

Section: Thermodynamic Modeling Of the Heat Pump Cyclementioning

confidence: 99%