Results 71 to 80 of about 69,897 (260)

Investigation of the Centaur boost pump overspeed condition at main engine shutdown on the Titan Centaur TC-2 flight [PDF]

open access: yes
An investigation was conducted to evaluate a potential boost pump overspeed condition which could exist on the Titan/Centaur launch vehicle after main engine shut-off.
Baud, K. W.
core   +1 more source

Rotating shaft seal Patent [PDF]

open access: yes, 1969
Liquid-vapor interface seal design for turbine rotating shafts including helical and molecular pumps and liquid cooling of mercury ...
Bosco, G. B., Jr., Lessley, R. L.
core   +1 more source

Flexible Direct‐Conversion X‐Ray Detectors: From Emerging Materials to Conformal Imaging

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This comprehensive review analyzed the performance, challenges, and future directions of four emerging material systems for next‐generation flexible direct‐conversion X‐ray detectors: organic semiconductors, perovskites, metal–organic frameworks, and inorganic metal compounds.
Haipeng Di   +11 more
wiley   +1 more source

Simultaneous efficiency improvement of pump and turbine modes for a counter-rotating type pump-turbine

open access: yesAdvances in Mechanical Engineering, 2016
This article presents a multi-objective optimization to improve the hydrodynamic performance of a counter-rotating type pump-turbine operated in pump and turbine modes.
Jin-Woo Kim   +6 more
doaj   +1 more source

Low power steam turbine energy efficiency and losses during the developed power variation

open access: yesTehnički Glasnik, 2018
This paper investigates low power marine steam turbine during the variation in its developed power. The turbine is used for the Main Feedwater Pump (MFP) drive.
Vedran Mrzljak
doaj   +1 more source

Geothermal down well pumping system [PDF]

open access: yes
A key technical problem in the exploitation of hot water geothermal energy resources is down-well pumping to inhibit mineral precipitation, improve thermal efficiency, and enhance flow.
Matthews, H. B., Mcbee, W. D.
core   +1 more source

Fluid stability in large scale ORCs using siloxanes: long-term experiences and fluid recycling [PDF]

open access: yes, 2015
The results in this work show the influence of long-term operation on the decomposition of working fluids in eight different power plants (both heat-led and electricity-led) in a range of 900 kWel to 2 MWel.
Eicker, Ursula   +3 more
core  

A regenerative supercritical-subcritical dual-loop organic Rankine cycle system for energy recovery from the waste heat of internal combustion engines [PDF]

open access: yes, 2017
Organic Rankine cycle (ORC) system is considered as a promising technology for energy recovery from the waste heat rejected by internal combustion (IC) engines.
Wang, Enhua   +3 more
core   +1 more source

Intelligent Control Framework of District Heating Systems Considering Waste Heat Utilization in Data Centers

open access: yesEnergy Science &Engineering, EarlyView.
A deep reinforcement learning–based control architecture is proposed to coordinate heat pumps, thermal storage, renewable energy, and demand response in data center waste heat recovery systems. The agent learns optimal control actions from system states and reward feedback to achieve electrical–thermal co‐optimization under realistic operational ...
Rendong Shen   +5 more
wiley   +1 more source

Cryogenic cooling system Patent [PDF]

open access: yes, 1971
Portable cryogenic cooling system design including turbine pump, cooling chamber, and ...
Fraze, R. E.
core   +1 more source

Home - About - Disclaimer - Privacy