Results 31 to 40 of about 206,055 (258)

Dynamic control strategy of a distillation system for a composition-adjustable organic Rankine cycle [PDF]

open access: yes, 2017
Using zeotropic mixtures as working fluids can improve the thermal efficiency of Organic Rankine cycle (ORC) power plants for utilising geothermal energy.
Collings, Peter, Wang, Enhua, Yu, Zhibin
core   +1 more source

Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics

open access: yesAdvanced Engineering Materials, EarlyView.
Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost   +4 more
wiley   +1 more source

Superheat Stability of an Evaporator and Thermostatic Expansion Valve [PDF]

open access: yes, 1998
In some refrigeration applications, difficulties arise in establishing stable evaporator operating conditions, especially when using a thermostatic expansion valve.
Hrnjak, P.S., Jacobi, A.M., Lenger, M.J.
core  

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

open access: yesAdvanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa   +9 more
wiley   +1 more source

Improving the Accuracy and Scope of Control-Oriented Vapor Compression Cycle System Models [PDF]

open access: yes, 2006
The benefits of applying advanced control techniques to vapor compression cycle systems are well know. The main advantages are improved performance and efficiency, the achievement of which brings both economic and environmental gains.
Alleyne, Andrew G., Eldredge, B.D.
core  

The readiness among the polytechnic engineering and non-engineering lecturers towards implementation of 4C in teaching [PDF]

open access: yes, 2020
The paper discusses the readiness level of the 4C polytechnics lecturer (creative, critical, communication & collaboration) from the cognitive, psychomotor and affective domains. By using questionnaires as an instrument, this research employed the survey
Awang, Noor Hidayah, Ming, Foong Lee
core  

Linear active disturbance rejection control of waste heat recovery systems with organic Rankine cycles [PDF]

open access: yes, 2012
In this paper, a linear active disturbance rejection controller is proposed for a waste heat recovery system using an organic Rankine cycle process, whose model is obtained by applying the system identification technique.
Fang Fang   +5 more
core   +2 more sources

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat   +7 more
wiley   +1 more source

Thermodynamic performance testing of the orbiter flash evaporator system [PDF]

open access: yes
System level testing of the space shuttle orbiter's development flash evaporator system (FES) was performed in a thermal vacuum chamber capable of simulating ambient ascent, orbital, and entry temperature and pressure profiles.
Frahm, J. P.   +2 more
core   +1 more source

Modelling and optimal control of plate evaporators [PDF]

open access: yes, 1995
Evaporators are an important stage in the extraction of sugar from sugar cane. A model of a simple evaporator is developed and then extended to multiple stage evaporation.
Thompson, C., Whiten, B.
core  

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