Search results for " Gas boiler"

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Energy and economic analysis of air-to-air heat pumps as an alternative to domestic gas boiler heating systems in the South of Italy

2019

Abstract According to the electricity tariff recently issued by the Italian government for the domestic heating systems fed with heat pumps (HP), an energy and economic analysis was carried out with the aim of investigating the effectiveness of the air-to-air heat pump systems (HPS) as an alternative to the traditional heating using domestic gas boilers systems (GBS). For the purpose of this study, the apartments of three residential buildings were examined. The hourly heating loads were calculated with the ASHRAE radiant time series and the coefficient of performance (COP) of the HPs was evaluated for each operating condition. The costs for the heating system installation and electricity a…

020209 energyTariff02 engineering and technologyIndustrial and Manufacturing Engineeringdomestic gas boilers systemsBoiler (water heating)law.invention020401 chemical engineeringlaw0202 electrical engineering electronic engineering information engineeringASHRAE 90.10204 chemical engineeringElectrical and Electronic EngineeringCivil and Structural EngineeringSettore ING-IND/11 - Fisica Tecnica AmbientaleWaste managementEnergy and economic analysibusiness.industryMechanical EngineeringBuilding and ConstructionCoefficient of performancePollutionair-to-air heat pump systemSettore ING-IND/31 - ElettrotecnicaGeneral EnergyHeating systemEnvironmental scienceElectricitybusinessThermal energyHeat pumpEnergy
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Electrical hybrid heat pumps assisted by natural gas boilers: a review

2022

In this paper, a comprehensive review is performed on hybrid systems using electrical Heat Pumps for Heating, Ventilation & Air Conditioning systems and Domestic Hot Water production using case studies from 2016 to 2022. This work particularly focuses on studies that investigated systems with electrical Heat Pumps assisted by a gas boiler. Some studies that considered the exploitation of renewable energy sources, but not as a whole sub-stitute for fossil sources, have also been included. In particular, the analysis investigated the layouts of the systems by considering the type and the size of the components, the control methods applied (by distinguishing rule-based control methods and …

Settore ING-IND/11 - Fisica Tecnica AmbientaleGeneral EnergyMechanical EngineeringHybrid heat pumps Heating Ventilation &ampBuilding and Constructionair conditioning systems Domestic hot water production Gas boilerManagement Monitoring Policy and LawApplied Energy
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