Results 31 to 40 of about 26,549 (157)

Continuous Operation Analysis of New Solar Sewage Dual-source Heat Pump for Nearly Zero-energy Buildings

open access: yesZhileng xuebao, 2022
This paper proposes a new solar sewage dual-source heat pump heating system and explores its application in winter heating in nearly zero-energy buildings in Changchun, Urumqi, Xining, Beijing, and Shanghai.
Cheng Cheng, Jiang Yiqiang, Wang Fei
doaj  

Numerical Simulation of a Solar Domestic Hot Water System

open access: yesJournal of Physics: Conference Series, 2014
An innovative transient numerical model is presented for the simulation of a solar Domestic Hot Water (DHW) system. The solar collectors have been simulated by using a zerodimensional analytical model. The temperature distributions in the heat transfer fluid and in the water inside the tank have been evaluated by one-dimensional models.
Mongibello, L.   +4 more
openaire   +3 more sources

Energetic analysis in a hot water system: A hotel facility case study

open access: yesJournal of Sustainable Development of Energy, Water and Environment Systems, 2023
This paper evaluates the energy operational performance of a system to produce domestic hot water, from the use of waste heat in a centralized air conditioning system in a hotel in Cuba. The hotel facility has two different chillers capacities, where the
Yarelis Valdivia Nodal   +6 more
doaj   +1 more source

Detailed Analysis of the Causes of the Energy Performance Gap Using the Example of Apartments in Historical Buildings in Wroclaw (Poland)

open access: yesEnergies, 2023
This paper presents the results of measuring and calculating the final energy consumption for heating and domestic hot water preparation in six apartments located in pre-war tenement houses in Wroclaw (Poland).
Małgorzata Szulgowska-Zgrzywa   +3 more
doaj   +1 more source

Single case study photovoltaic panels within water heating system

open access: yesSelected Scientific Papers: Journal of Civil Engineering, 2020
The submitted article offers one of the possible options of a usage of photovoltaic panels for a domestic hot water preparation with an option to extra heating a heating system, and following recalculation of a produced electric energy amount in regards ...
Baláž Richard
doaj   +1 more source

Experimental investigation of the energy performance of a photovoltaic-thermal assisted ground source heat pump system for net plus energy houses

open access: yesCase Studies in Thermal Engineering
This study investigates the experimental analysis of the energy saving potential of integrating a photovoltaic-thermal (PVT) assisted ground source heat pump system under heating season operation.
Won-Jong Choi   +6 more
doaj   +1 more source

Performances of modern domestic hot-water stores

open access: yesApplied Energy, 2006
Abstract Several designs of domestic hot-water (DHW) store, including those with immersed heat-exchangers (HXs), are commercially available. So there is a need for a method that accurately assesses their effectivenesses. In this study, the behaviours of a novel stratified, and two standard, stores were analyzed.
Spur, R.   +3 more
openaire   +4 more sources

Investigation of temperature drop in domestic hot water circuit

open access: yesE3S Web of Conferences, 2018
The results of experimental investigation of determining the time of temperature drop in domestic hot water circuit were presented in this paper on the example of single-family house.
Rzeźnik Ilona
doaj   +1 more source

Evaluation of energy saving measures implementation for the hot water supply system in Vladivostok airport

open access: yesАрхитектура, строительство, транспорт
Implementing economically viable energy-saving measures is a priority for any large enterprises.Hot water supply system as one of the major heat consumers in airports offer significant potential for energy consumption reduction.
Irina A. Zhurmilova   +2 more
doaj   +1 more source

Energy efficiency of a solar domestic hot water system

open access: yesE3S Web of Conferences, 2017
The solar domestic hot water (SDHW) system located on the campus of Bialystok University of Technology is the object of the research described in the current paper.
Zukowski Miroslaw
doaj   +1 more source

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