Results 91 to 100 of about 284,728 (216)

Experimental Investigation on a Solar Air Heat Pump by Heat Source

open access: yesEnergy Procedia, 2012
AbstractFor the shortcoming of single air source heat pump, single solar energy heat pump and switch solar-air dual heat source heat pumps, a new solar air two source heat pump was proposed. Then, the performance of the solar air two sources heat pump was studied by experiment.
Liu, Yin, Zhou, Guanghui, Ma, Jing
openaire   +1 more source

Concrete pavements as a source of heating and cooling [PDF]

open access: yes, 2010
There is great potential to use the large open space of pavement structures, equipped with an embedded pipe network, in conjunction with a heat pump, to provide heating and cooling for adjacent buildings, e.g.
Dawson, Andrew, Hall, M.R., Keikha, P.
core  

The influence of thermal storage on microgeneration flexibility [PDF]

open access: yes, 2011
In a future power system, the ability to manipulate generation and load will be a critical factor in providing a secure and stable supply of electrical energy to consumers.
Hong, Jun   +3 more
core  

Comparative Analysis of Levelized Cost of Heat in Implemented and Calculated Heat Supply Systems with Heat Pumps in Ukraine

open access: yesEnergies
The adoption of heat pumps in Ukraine is increasing, yet precise data on their economic viability are limited. This study compares the Levelized Cost of Heat (LCOH) in implemented and calculated heat pump systems under Ukrainian conditions.
Valentyna Stanytsina   +7 more
doaj   +1 more source

Simulation Analysis of Solar-air Dual Heat Source Heat Pump System

open access: yesZhileng xuebao, 2023
This study designs and establishes a solar-air dual heat source heat pump system based on a micro-heat pipe array to ensure the stable operation of the multiple heat source heat pump system under complex operating conditions and further optimize the reasonable and efficient energy matching among the system components. A mathematical model of the system
Wang Gang   +4 more
openaire   +1 more source

Simplified modelling of air source heat pumps producing detailed results [PDF]

open access: yes, 2012
Created by the Building Research Establishment (BRE), the Standard Assessment Procedure (SAP) is the UK Government‟s recommended method of assessing the energy ratings of dwellings.
Allison, John   +3 more
core  

Dynamic modeling of an air source heat pump water heater

open access: yes, 2011
International audienceThis paper presents a dynamic simulation model to predict the performance of an air source heat pump water heater (ASHPWH). The mathematical model consists of submodels of the basic system components i.e.
Fardoun, Farouk   +2 more
core   +1 more source

Review of Frost-free and Defrost Methods for Air-source Heat Pump Systems

open access: yesZhileng xuebao, 2019
Air-source heat pumps have been widely used for room heating and air conditioning because of their stable performance and easy installation. The greatest performance limitation is the frosting and defrosting problem of the outdoor heat exchanger during ...
Shen Jiubing   +4 more
doaj  

Mathematical model of heat pump [PDF]

open access: yes, 2015
In this paper different energy states of a heat pump are described. Equations used for mathematical description of the heat pump in the Matlab Simulink are presented.
Pitron, J.
core  

Solar-powered pump [PDF]

open access: yes, 1976
A solar powered pump particularly suited for intermittently delivering a stream of water is reported. The pump is characterized by a housing adapted to be seated in a source of water having a water discharge port disposed above the water line of the ...
Kirsten, C. C.
core   +1 more source

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