Results 71 to 80 of about 284,823 (311)

Performance analysis of air source heat pumps using detailed simulations and comparison to field trial data [PDF]

open access: yes, 2010
The take-up of heat pump technologies in the UK domestic sector has lagged far behind other countries in Europe and North America due primarily to the ready availability of cheap natural gas; this has led to the predominance of gas central heating ...
Cockroft, J., Ghauri, S., Kelly, N.J.
core  

Experimental study of an air-source heat pump for simultaneous heating and cooling - Part 2: Dynamic behaviour and two-phase thermosiphon defrosting technique

open access: yes, 2011
International audienceThis article presents the concepts of an air-source Heat Pump for Simultaneous heating and cooling (HPS) designed for hotels and smaller residential, commercial and office buildings in which simultaneous needs in heating and cooling
Byrne, Paul   +2 more
core   +3 more sources

Development of concepts for a zero-fossil-energy greenhouse [PDF]

open access: yes, 2008
Dutch government and greenhouse horticultural practice aim for strongly reduced fossil energy use and of environmental loads in 2010 and energy neutral greenhouses in 2020.
Bot, G.P.A.   +4 more
core   +2 more sources

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

open access: yesAdvanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana   +2 more
wiley   +1 more source

Analysis of Heat Pumps Efficiency in Selected Locations – A Case Study

open access: yesEnvironmental and Climate Technologies, 2022
Heat pumps are increasingly popular in individual buildings and could help to meet expectations of ambitious energy-environmental European goals until 2050.
Ołtarzewska Agata, Krawczyk Dorota Anna
doaj   +1 more source

3D‐Printed Sulfur‐Derived Polymers With Controlled Architectures for Lithium‐Sulfur Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Rheology‐guided formulation design for direct ink writing enables the fabrication of 3D sulfur copolymer cathodes with controlled architectures for lithium‐sulfur batteries. The printed electrodes exhibit multiscale porosity and high sulfur utilization, delivering enhanced electrochemical performance compared to conventional cast electrodes.
Bin Ling   +7 more
wiley   +1 more source

Design of a space heating system with an air-water heat pump and bivalent heat source [PDF]

open access: yes, 2015
Práce řeší kompletní rekonstrukci otopné soustavy, tj. včetně zdroje tepla, rozvodů a otopných těles, rodinného domu s vyššími tepelnými ztrátami. Jako zdroj tepla je zvoleno tepelné čerpadlo vzduch-voda.
Skočík, Lukáš
core  

Investigation on thermal-hydraulic performance of outdoor heat exchanger in air sources heat pump [PDF]

open access: yes, 2017
A plethora of findings exists on the decreasing heat transfer performance of ASHP under frosting condition. This study investigates, using field and laboratory experiments, the frosting behavior and heat transfer performance of fin-tube exchangers ...
Chen, Y   +4 more
core   +2 more sources

Performance Analysis of CO2 Air-source Heat Pump Heating System

open access: yesZhileng xuebao, 2020
The energy efficiency of conventional CO2 systems used for heating is low. Therefore, cascade and subcooling systems can be adopted to improve the performance of CO2 systems. In this study, the thermodynamic models of a baseline CO2 system (BASE), R410A vapor injection system, cascade system, indirect dedicated mechanical subcooling CO2 system (IDMS ...
Qi Haifeng   +5 more
openaire   +1 more source

Single‐Crystalline Lateral p‐SnS/n‐SnSe van der Waals Heterostructures by Vapor Transport Growth with In Situ Bi Doping

open access: yesAdvanced Functional Materials, EarlyView.
In‐situ doping during growth of SnSe and subsequent attachment of SnS produces high‐quality lateral pn‐heterojunctions between van der Waals semiconductors. Electron beam induced current measurements demonstrate electrically active pn‐junctions, paving the way for devices that harness charge separation at lateral interfaces in layered heterostructures.
Peter Sutter   +4 more
wiley   +1 more source

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