Results 51 to 60 of about 8,347,297 (348)

Maximum power and corresponding efficiency for two-level heat engines and refrigerators: optimality of fast cycles [PDF]

, 2019
We study how to achieve the ultimate power in the simplest, yet non trivial, model of a thermal machine, namely a two-level quantum system coupled to two thermal baths. Without making any prior assumption on the protocol, via optimal control we show that,
Cavina, Vasco, Erdman, Paolo Andrea, Fazio, Rosario, Giovannetti, Vittorio, Taddei, Fabio   +4 more
core   +3 more sources

Influence of usage and model inaccuracies on the performance of smart hot water heaters: lessons learned from a demand response field test

Frontiers in Energy Research
Domestic hot water heaters are considered to be easily integrated as flexible loads for demand response. While literature grows on reproducible simulation and lab tests, real-world implementation in field tests considering state estimation and demand ...
Peter Kepplinger, Peter Kepplinger, Gerhard Huber, Gerhard Huber, Markus Preißinger, Markus Preißinger   +5 more
doaj   +1 more source

Enhance thermal efficiency of parabolic trough collector using Tungsten oxide/Syltherm 800 nanofluid

Pollack Periodica, 2020
Development of thermal efficiency of the concentrated solar energy especially parabolic trough collector using various nanofluids types has a taken high interest in recent years.
O. Al-Oran, F. Lezsovits
semanticscholar   +1 more source

Experimental performance of water cooled building integrated photovoltaic/thermal solar collectors [PDF]

, 2008
The idea of integrating water cooled photovoltaic/thermal collectors into building structures (BIPVT collectors) to provide electrical and heat energy is an area that has received only limited attention.
Anderson, Timothy Nicholas, Carson, James K., Duke, Mike   +2 more
core   +1 more source

Optimizing a falling particle receiver geometry using CFD simulations to maximize the thermal efficiency

SOLARPACES 2019: International Conference on Concentrating Solar Power and Chemical Energy Systems, 2020
. A strategy to optimize the thermal efficiency of falling particle receivers (FPRs) in concentrating solar power applications is described in this paper.
Brantley Mills, Benjamin Schroeder, L. Yue, Reid Shaeffer, C. Ho   +4 more
semanticscholar   +1 more source

Hematopoietic (stem) cells—The elixir of life?

FEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo, Jonah Anderson, Emilie Dinh Vedrenne, Noël Yeh Martín, Jette Lengefeld   +4 more
wiley   +1 more source

A data-driven regression model for predicting thermal plant performance under load fluctuations

Carbon Neutrality
The global energy demand is still primarily reliant on fossil-fueled thermal power plants. With the growing share of renewables, these plants must frequently adjust their loads.
Gleb Prokhorskii, Souman Rudra, Markus Preißinger, Elias Eder   +3 more
doaj   +1 more source

An interpretable and adaptable data-driven model for performance prediction in thermal plants

Energy Conversion and Management: X
To safely operate complex industrial systems such as thermal power plants, establishing reliable monitoring tools is paramount for better understanding the underlying processes.
G. Prokhorskii, M. Preißinger, S. Rudra, E. Eder   +3 more
doaj   +1 more source

Thermal Efficiency and Emission Characteristics of a Diesel-hydrogen Dual Fuel CI Engine at Various Loads Condition [PDF]

, 2018
Efforts to find alternative fuels and reduce emissions of CI engines have been conducted, one of which is the use of diesel hydrogen dual fuel. One of the goals of using hydrogen in dual-fuel combustion systems is to reduce particulate emissions and ...
Dimyani, A. (Ahmad), Lim, O. (Ocktaeck), Nur, A. (Arifin), Praptijanto, A. (Achmad), Pratama, M. (Mulia), Putrasari, Y. (Yanuandri), Santoso, W. B. (Widodo), Suherman, S. (Suherman), Wahono, B. (Bambang), Wardana, M. K. (Muhammad)   +9 more
core  

The Role of Source Coherence in Atom Interferometery

, 2013
The role of source cloud spatial coherence in a Mach-Zehnder type atom interferometer is experimentally investigated. The visibility and contrast of a Bose-Einstein condensate (BEC) and three thermal sources with varying spatial coherence are compared as
Bennetts, Shayne, Close, John D., Debs, John E., Hardman, Kyle S., Kuhn, Carlos C. N., McDonald, Gordon D., Robins, Nicholas P.   +6 more
core   +1 more source