Results 41 to 50 of about 302,979 (341)

Energy and exergy analysis of a flat plate collector using collector test equations [PDF]

open access: yesE3S Web of Conferences, 2020
This paper presents the energetic and exergetic analysis of a widely used flat plate collector based on the collector testing equations. The evaluation of the performances of the collector is done under the climatic conditions corresponding to a typical ...
Gheorghian Adina-Teodora   +2 more
doaj   +1 more source

Algorithmic thermodynamics [PDF]

open access: yesMathematical Structures in Computer Science, 2012
Algorithmic entropy can be viewed as a special case of the entropy studied in statistical mechanics. This viewpoint allows us to apply many techniques developed for use in thermodynamics to the subject of algorithmic information theory. In particular, suppose we fix a universal prefix-free Turing machine and letXbe the set of programs that halt for ...
BAEZ, JOHN, STAY, MIKE
openaire   +4 more sources

Functionalized Controlled Porous Glasses for Producing Radical-Free Hyperpolarized Liquids by Overhauser DNP

open access: yesMolecules, 2022
Overhauser dynamic nuclear polarization (ODNP) can be used as a tool for NMR signal enhancement and happens on very short time scales. Therefore, ODNP is well suited for the measurement of fast-flowing samples, even in compact magnets, which is ...
Raphael Kircher   +3 more
doaj   +1 more source

Quantum thermodynamics [PDF]

open access: yesContemporary Physics, 2016
48 pages, improved and expanded several sections.
Vinjanampathy, Sai, Anders, J
openaire   +3 more sources

Superheated steam production from a large-scale latent heat storage system within a cogeneration plant

open access: yesCommunications Engineering, 2023
During phase change, phase change materials absorb or release latent heat at a nearly constant temperature. Latent heat thus can be stored and integrated with evaporation/condensation systems such as steam generators within a relatively narrow range of ...
Maike Johnson, Michael Fiss
doaj   +1 more source

Interpretation of Adsorption Thermodynamics and Kinetics

open access: yesOpen Journal of Physical Chemistry, 2020
A complete study of adsorption processes will be less complete if the structure and dynamics of its different elements and how they interact is not well captured.
A. Ebelegi, N. Ayawei, D. Wankasi
semanticscholar   +1 more source

Future Perspectives of Finite-Time Thermodynamics

open access: yesEntropy, 2022
Finite-time thermodynamics was created 45 years ago as a slight modification of classical thermodynamics, by adding the constraint that the process in question goes to completion within a finite length of time [...].
B. Andresen, P. Salamon
semanticscholar   +1 more source

Thermodynamics of spacetime: The Einstein equation of state. [PDF]

open access: yesPhysical Review Letters, 1995
The Einstein equation is derived from the form of black hole entropy together with the fundamental relation $\delta Q=TdS$ connecting heat, entropy, and temperature.
T. Jacobson
semanticscholar   +1 more source

Typical Periods for Two-Stage Synthesis by Time-Series Aggregation with Bounded Error in Objective Function

open access: yesFrontiers in Energy Research, 2018
Two-stage synthesis problems simultaneously consider here-and-now decisions (e.g., optimal investment) and wait-and-see decisions (e.g., optimal operation). The optimal synthesis of energy systems reveals such a two-stage character.
Björn Bahl   +3 more
doaj   +1 more source

Analysis of low‐temperature pumped thermal energy storage systems based on a transcritical CO2 charging process

open access: yesEnergy Science & Engineering, 2023
Pumped thermal energy storage (PTES) is a technology for intermediate storage of electrical energy in the form of thermal energy. In this work, PTES systems based on a transcritical CO2 charging process are investigated.
Jonas Bodner   +3 more
doaj   +1 more source

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