Results 21 to 30 of about 11,564 (258)

On sustainable and efficient design of ground-source heat pump systems

open access: yesJournal of Physics: Conference Series, 2015
This paper is mainly aimed at stressing some fundamental features of the GSHP design and is based on a broad research we are performing at the University of Pisa. In particular, we focus the discussion on an environmentally sustainable approach, based on performance optimization during the entire operational life.
GRASSI, WALTER   +3 more
openaire   +3 more sources

Ground-source heat pump systems: state-of-the-art [PDF]

open access: yesScience and Technology for the Built Environment, 2019
This special issue of Science and Technology for the Built Environment (STBE) focuses on ground-source heat pump (GSHP) systems and follows another popular issue on the same theme published in 2011...
Jeffrey Spitler, Michel Bernier
openaire   +2 more sources

Experimental Ground Source Heat Pump System to Investigate Heat Transfer In Soil [PDF]

open access: yesLinköping Electronic Conference Proceedings, 2011
The earth is an energy resource which has more suitable and stable temperatures than air. Typical values for Coefficient of Performance (COP) of Ground Source Heat Pumps (GSHPs) are up to 8 while it is 4 of air source heat pumps. GSHPs were developed to use ground energy for residential heating.
AĞRA, Özden   +2 more
openaire   +2 more sources

Optimization of Ground Source Heat Pump System Based on TRNSYS in Hot Summer and Cold Winter Region

open access: yesBuildings
A cooling tower-assisted ground source heat pump system is proposed to solve the problem of soil heat accumulation in areas with hot summers and mild winters. TRNSYS is used to establish the simulation model of the ground source heat pump system.
Hua Zhang   +5 more
doaj   +1 more source

TWO-STAGE HEAT PUMPS FOR ENERGY SAVING TECHNOLOGIES

open access: yesHolodilʹnaâ Tehnika i Tehnologiâ, 2017
The problem of energy saving becomes one of the most important in power engineering. It is caused by exhaustion of world reserves in hydrocarbon fuel, such as gas, oil and coal representing sources of traditional heat supply.
A. E. Denysova   +3 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

Development of heat pump model based on outlet temperature of heat medium

open access: yesJapan Architectural Review, 2018
In this paper, we describe a new heat pump calculation model that achieves the following objectives: (i) demonstrates the influences of temperature, flow rate, and load ratio of the heating medium on the system; (ii) describes the system characteristics ...
Eisuke Togashi
doaj   +1 more source

A Study on the Effect of Performance Factor on GSHP System through Real-Scale Experiments in Korea

open access: yesEnergies, 2020
A ground source heat pump system is one of the high-efficient technologies for space heating and cooling since it uses stable underground temperature.
Hongkyo Kim   +4 more
doaj   +1 more source

Development of distributed multiple‐source and multiple‐use heat pump system using renewable energy: Outline of test building and experimental evaluation of cooling and heating performance

open access: yesJapan Architectural Review, 2021
The development of a distributed heat pump system that utilizes several renewable energy sources to meet building heating and cooling demands was reported in this paper.
Mingzhe Liu   +6 more
doaj   +1 more source

CFD Applications in Ground Source Heat Pump System

open access: yes, 2023
In ground source heat pump (GSHP) system, computational fluid dynamics (CFD) is commonly used to conduct simulation analysis of its operating characteristics. Particularly, ground heat exchanger (GHE) is the most core component of GSHP system, and the heat transfer characteristics of which with soil around will directly affect the efficiency of the ...
Yajiao Liu   +5 more
openaire   +1 more source

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