Results 21 to 30 of about 90,105 (214)
Improved district heating network operation by the integration of high-temperature heat pumps [PDF]
International Journal of Sustainable Energy, 2017 Biomass combined heat and power (CHP) plants connected to district heating networks are a very good opportunity to increase the share of renewable sources into energy systems. Frequently, important consumers are connected to ensure a stable base heat demand throughout the year but they often have higher requirements in terms of temperature (i.e. steam),
Sartor, Kevin +2 more
openaire +4 more sources
Temperature response functions (G-functions) for single pile heat exchangers [PDF]
, 2013 Foundation piles used as heat exchangers as part of a ground energy system have the potential to reduce energy use and carbon dioxide emissions from new buildings. However, current design approaches for pile heat exchangers are based on methods developed
Loveridge, F.A. +3 more
core +1 more source
Development of a gas absorption heat pump for residential applications [PDF]
, 2023 Thermally Driven Heat Pumps represent an option to reduce the energy consumption for space heating and domestic hot water in hard-to-decarbonize buildings without impacting the electrical grid and utilizing the current and future gaseous energy vectors
M. Guerra +4 more
core +1 more source
Energies, 2023 Traditional crude oil heating methods that use fossil fuels or electricity have the disadvantages of high consumption of nonrenewable resources, low energy utilization, and high carbon emissions.
Shangwen Zhu +6 more
doaj +1 more source
Applied SciencesThis paper proposes, for the first time, the research concept of comparing energy and economy between transcritical cycle high-temperature heat pumps and subcritical cycle high-temperature heat pumps with new refrigerants. Experiments and simulations are
Dahan Sun, Jiang Qin, Zhongyan Liu
doaj +1 more source
Determination of coefficient of performance of mechanical vapour recompression heat pump [PDF]
E3S Web of Conferences, 2019 Mechanical vapour recompression heat pump systems are widely used in the industry -in evaporator and distillation installations, in seawater desalination and industrial wastewater treatment plants.
Valchev Slav +2 more
doaj +1 more source
Performance assessment of a novel auto-cascade heat pump using low-GWP refrigerant for obtaining high-temperature water [PDF]
International Journal of Fluid EngineeringWith the aim of developing a high-temperature heat pump with a large temperature lift, a novel auto-cascade heat pump using low global warming potential (GWP) refrigerant is proposed. Owing to the large exergy destruction between the refrigerant and heat
Gang Yan, Yuqing Yang, Yinlong Li
doaj +1 more source
Domestic Hot Water Production with Ground Source Heat Pump in Apartment Buildings
Energies, 2015 Producing domestic hot water (DHW) with a ground source heat pump (GSHP) is challenging due to the high temperature (HT) of DHW. There are many studies proving the better performance of cascade heat pumps compared to single-stage heat pumps when the ...
Jukka Yrjölä, Eetu Laaksonen
doaj +1 more source
Feasibility Analysis of Industrial High-Temperature Heat Pumps in Greece
Applied SciencesThe high-temperature heat pump is a favorable technology for aiding the decarbonization of the industrial sector through its electrification. It can produce useful heat up to the range of 100 °C to 200 °C; however, additional steps are needed to develop ...
Evangelos Bellos +3 more
doaj +1 more source
Research on the characteristics of dual-temperature heat pump based on refrigerant leakage [PDF]
Journal of Hebei University of Science and TechnologyIn order to meet the demand for dual-temperature heating in production and life, a dual-temperature heat pump system based on refrigerant leakage was proposed. By establishing and verifying the mathematical model and system model of the scroll compressor
Diankang WU +3 more
doaj +1 more source