Results 51 to 60 of about 8,926,589 (248)

Field Measurement and Data-Driven Modeling of a Photovoltaic/Thermal and Air-Source Dual-Source Heat Pump System in Dalian, China

open access: yesBuildings
Dual-source heat pump systems combining photovoltaic-thermal (PVT) and air-source technologies have attracted considerable research interest due to their energy complementarity.
Xin Jia   +7 more
doaj   +1 more source

Experimental Study on Heating Performance of Air-source Heat Pump with Natural Cold Source Subcooling

open access: yesZhileng xuebao, 2021
There are many natural cold sources in the northern China in winter, and thermodynamic analysis shows that the heat released by the working medium subcooling can be compensated in the isothermal heat absorption process of the evaporator. To determine the
Niu Jianhui, Bu Qiujun
doaj  

A Miniaturized Autonomous Thermomagnetic Generator

open access: yesAdvanced Functional Materials, EarlyView.
Micro, autonomous and high power thermomagnetic generator operating between a heat dissipator and a processor. ABSTRACT Thermomagnetic generators (TMG) are promising devices for converting low‐grade waste heat into electricity. Self‐actuation using permanent magnets is the key to autonomy.
Morgan Almanza   +11 more
wiley   +1 more source

Research on the Application of Heat Pump with Different Coupling Methods in Heating Terminal [PDF]

open access: yesE3S Web of Conferences
Under the dual pressure of energy supply and demand contradiction and increasingly severe environmental pollution, adopting clean energy to replace traditional fossil energy, reducing conventional energy consumption, and achieving clean heating is a ...
Wang Zheng, Zhang Fengxia
doaj   +1 more source

Life Cycle Climate Performance Model for Residential Heat Pump Systems [PDF]

open access: yes, 2012
A comprehensive analytical model using Excel and Visual Basic for Applications (VBA) has been developed to simulate life cycle climate performance (LCCP) for residential heat pumps. The LCCP model includes the direct impacts of refrigerant emissions, the
Muehlbauer, Jan, Zhang, Ming
core  

Experiment study on performance of air source heat pump

open access: yes, 2013
Under the situation of energy crisis, air source heat pumps are paid more attention recently. In order to save energy, the feasibility and performance of air source heat pump are studied by experiment, and variation laws of exhaust temperature ...
Shi WX, Pan LS(潘利生)
core   +1 more source

Tantalum–Palladium Ultrathin Resistance Hydrogen Sensor

open access: yesAdvanced Functional Materials, EarlyView.
Nanoconfined Ta‐alloy thin films enable fast, reversible hydrogen sensing by suppressing unwanted phase transitions. A Ta0.88${\rm Ta}_{0.88}$Pd0.12${\rm Pd}_{0.12}$ sensing layer delivers hysteresis‐free detection from ppb to 100% H2${\rm H}_2$ at room temperature.
Folkert Isaäc Bernhard Straus   +2 more
wiley   +1 more source

Division of Outdoor Nominal Condition of Air Source Heat Pumps in China

open access: yesZhileng xuebao, 2019
Air source heat pump,as an important heating and air-conditioning equipment, is widely used in various types of buildings in China.The different climate and building load characteristics within different zones create a gap between the demand for ...
Shi Wenxing, Yang Zixu, Wang Baolong
doaj  

Investigation of a Novel Air Source Heat Pump Test Platform [PDF]

open access: yes
A flexible air source heat pump testing platform is being developed at the National Renewable Energy Centre that will have the advantages of both a field trial and a laboratory test.
Shi, Yuan
core  

Long term performance analysis of a Dual-Source Heat Pump system by means of the Matlab/Simulink tool ALMABuild

open access: yes, 2023
In this paper, the performance of a Dual-Source Heat Pump (DSHP), able to exploit energy from both air and ground, has been investigated through the Simulink toolbox ALMABuild.
Claudia Naldi   +3 more
core   +1 more source

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