Results 161 to 170 of about 172,567 (366)

Multi-heat addition turbine engine [PDF]

open access: yes, 1993
A multi-heat addition turbine engine (MHATE) incorporates a plurality of heat addition devices to transfer energy to air and a plurality of turbines to extract energy from the air while converting it to work.
Brabbs, Theodore A., Franciscus, Leo C.
core   +1 more source

Experimental Pressure Gain Analysis of Pulsed Detonation Engine

open access: yesAerospace
A pulsed detonation chamber (PDC) equipped with Hartmann–Sprenger resonators has been designed and tested for both Hydrogen/air and Hydrogen/Oxygen mixtures.
Alina Bogoi   +5 more
doaj   +1 more source

Use of virtual reality to engage undergraduate students in environmental field experiences

open access: yesFuture in Educational Research, EarlyView.
Abstract Field‐based experiences enhance cognitive and affective skill sets of undergraduate students. Although field‐based learning is a highly effective pedagogical modality, it is not accessible to all students, necessitating the development and evaluation of alternate modalities that convey equivalent benefits.
Elizabeth W. Stoner   +6 more
wiley   +1 more source

German wind power sector in crisis Energiewende under further threat. OSW COMMENTARY NUMBER 309 | 25.09.2019 [PDF]

open access: yes, 2019
The slowdown in expansion of onshore wind farms poses a serious threat to the German Energiewende. In 2018, wind power accounted for half of the electricity obtained from RES, and is considered the driving force behind the Energiewende. In the first half
Kędzierski, Michał
core  

Performance Optimization of Solar Water Heating Systems Using Molten Salt Thermal Energy Storage Across Varying Tilt Angles

open access: yesGlobal Challenges, EarlyView.
A solar water heating system integrated with molten salt thermal energy storage (MSTES) was experimentally evaluated under varying collector tilt angles. Using a parabolic trough collector and sodium‐potassium nitrate salt, the study identified optimal thermal performance at 15° tilt, achieving high collector efficiency, effective heat transfer, and ...
Natrayan Lakshmaiya   +6 more
wiley   +1 more source

Alaska Energy Statistics 1960-2011 Final Report [PDF]

open access: yes, 2013
This twenty-sixth edition of the Alaska Energy Statistics reconciles energy data from public sources and makes that data more easily available to the public and stakeholders.
Fay, Ginny   +2 more
core  

Retrofitting Low Carbon Aviation Fuels Processes From Natural Gas to Renewables Energy‐Based Systems

open access: yesGreenhouse Gases: Science and Technology, EarlyView.
ABSTRACT The aviation sector's dependence on high‐energy‐density fuels presents a challenge for decarbonization. This study evaluates the economic and environmental feasibility of retrofitting a gas‐to‐liquid (GTL) plant for low carbon aviation fuel (LCAF) production using solar electrification, an advanced reformer unit (CARGEN), and a hybrid ...
Yasmin Abdelkarim   +6 more
wiley   +1 more source

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