Results 81 to 90 of about 916,873 (301)

Low-GWP refrigerants in heat pumps: An experimental investigation of the influence of an internal heat exchanger

open access: yesEnergy Conversion and Management: X
In heat pumps, the use of refrigerants with a low global warming potential (GWP) gains importance due to increasingly strict regulations regarding their ecological impact.
Christoph Höges   +7 more
doaj   +1 more source

Optical wireless communication based indoor positioning algorithms: performance optimisation and mathematical modelling [PDF]

open access: yes, 2018
In this paper, the performance of the optimal beam radius indoor positioning (OBRIP) and two-receiver indoor positioning (TRIP) algorithms are analysed by varying system parameters in the presence of an indoor optical wireless channel modelled in line of
Beer   +5 more
core   +1 more source

Parallel Electrical Integration of Photo Bio Electrochemical Systems (photo‐BESs): Performance Gains and Load Dependency

open access: yesAdvanced Materials Technologies, EarlyView.
Parallel wiring of bioelectrochemical devices with conventional generators unexpectedly boosts output. A biophotovoltaic paired with a solar cell delivers up to 50% more power at low loads than their separate contributions; a plant microbial fuel cell shows similar current gains.
Valeria Marsaglia   +4 more
wiley   +1 more source

Influence of Working from Home Scenarios on Annual Heating Energy Demand for German Residential Buildings [PDF]

open access: yesE3S Web of Conferences
In this paper, sensitivity analysis is performed for 12 building year classes of German residential buildings to investigate the influence and magnitude of working from home (WFH) scenarios on the annual heating energy demand per specific area (AHED ...
ElMokadem Mahmoud   +2 more
doaj   +1 more source

A PCM based cooling system for office buildings: a state of the art review [PDF]

open access: yesE3S Web of Conferences, 2019
Cooling of air in buildings has a significant effect on thermal comfort and, consequently, productivity of office occupants. This study presents a state of the art review of energy efficient cooling systems that will provide occupants in buildings with ...
Paroutoglou Evdoxia   +4 more
doaj   +1 more source

Emerging indoor pollutants

open access: yesInternational Journal of Hygiene and Environmental Health, 2020
There is an increasing use of so-called emerging substances or substances of emerging concern. These terms describe, inter alia, the replacement of commonly used chemicals in formulations by supposedly less harmful chemicals. A well-known example is the shift from DEHP to higher molecular weight phthalates and later the shift from phthalates to DINCH ...
openaire   +2 more sources

A comparison of different ventilation strategies for dwellings in terms of airflow rates and airflow paths [PDF]

open access: yes, 2016
The context of ventilation in Belgian dwellings has changed since the publication of the Belgian standard NBN D 50-001:1991. Due to the higher energy performance of these dwellings, ventilation plays nowadays a more essential role in maintaining a good ...
Caillou, Samuel   +2 more
core  

Anti‐Slip Material‐Based Strategies and Approaches

open access: yesAdvanced Materials Technologies, EarlyView.
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani   +3 more
wiley   +1 more source

Development of a control strategy for air handling units equipped with membrane-based enthalpy exchangers [PDF]

open access: yesE3S Web of Conferences
With rising air tightness in buildings, the use of mechanical ventilation has become more relevant. In this context, energy recovery offers a significant contribution to the decarbonisation of building operations. Membrane-based enthalpy exchangers (MEEs)
Kremer Martin, Rewitz Kai, Müller Dirk
doaj   +1 more source

Propagation modelling and measurements in a populated indoor environment at 5.2 GHz [PDF]

open access: yes, 2006
There are a number of significant radiowave propagation phenomena present in the populated indoor environment, including multipath fading and human body effects.
Evans, N. E.   +2 more
core  

Home - About - Disclaimer - Privacy