Results 91 to 100 of about 23,169 (217)
A Combined Organic Rankine Cycle-Heat Pump System for Domestic Hot Water Application [PDF]
, 2016 This paper investigates a novel system to improve the efficiency of using natural gas for domestic heating. The exhaust from a gas burner powers a small-scale Organic Rankine Cycle (ORC) system using hexane as the working fluid, which is used to directly
Al-Tameemi, Mohammed +2 more
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Zhileng xuebao, 2018 A 2-kW small-scale organic Rankine cycle power plant system targeted for medium-low temperature heat sources was established in this study. The experimental research was aimed at investigating how expansion parameters affect the system performance.
Yang Jingye +4 more
doaj
, 2007 The existence of various anomalous stars, such as the first stars in the universe or stars produced by stellar mergers, has been recently proposed. Some of these stars will result in black hole formation.
Ken’ichiro Nakazato +4 more
core +1 more source
IOP Conference Series: Materials Science and Engineering, 2017 Concurrent pressure drop and cooling of a super-critical or sub-cooled liquid stream can have the same effect as adiabatic expansion even though there is no work extraction. A practical implementation is as straight forward as counter-flow heat exchange with a colder fluid.
P Knudsen, V Ganni
openaire +1 more source
Cycle analysis of a single-stage transcritical R744 system in supermarkets: The impact of isentropic efficiency and oil [PDF]
Thermal ScienceCarbon dioxide is increasingly present in modern refrigeration systems, finding significant application in commercial cooling, especially in supermarkets. However, its application encounters many challenges due to its unfavorable thermodynamic properties.
Vladimir Cernicin +4 more
openaire +1 more source
Energies, 2019 As a competitive small-scale turbomachinery option, Tesla turbines have wide potential in various fields, such as renewable energy generation systems and small power equipment.
Wenjiao Qi +5 more
doaj +1 more source
Low-Isentrope, High-Efficiency Heavy Ion Direct Drive Capsule Simulations
, 2010 We build upon recent work [1] that presented simulations of heavy ion beams' passive range lengthening in directly-driven DT targets by now raising the ion energy over the course of the drive to follow the ablation front inward. We have scaled the target from ref.
HAY, M. J. +3 more
openaire +1 more source
Case Studies in Thermal EngineeringVariable refrigerant flow systems are recognized for their energy efficiency, yet their performance under fluctuating cooling loads and interdependencies among intrinsic performance variables remains insufficiently explored.
Muhammad Reshaeel, Mohamed I. Hassan Ali
doaj +1 more source
Squeezed thermal reservoirs as a resource for a nano-mechanical engine beyond the Carnot limit
, 2017 The efficient conversion of thermal energy to mechanical work by a heat engine is an ongoing technological challenge. Since the pioneering work of Carnot, it is known that the efficiency of heat engines is bounded by a fundamental upper limit, the Carnot
Faelt, Stefan +3 more
core +2 more sources
International Journal of Chemical Engineering, 2016 A combined cooling, heating, and power (CCHP) system which produces electricity, heating, and cooling is modeled and analyzed. This system is comprised of a gas turbine, a heat recovery steam generator, and a double-effect absorption chiller.
Ali Mousafarash
doaj +1 more source