Results 81 to 90 of about 5,415 (258)

Gas Turbine Performance and Maintenance [PDF]

open access: yes, 2018
TutorialsIn this tutorial, we will address the basic characteristics of each of the components in a gas turbine (compressor, combustor, gas generator turbine, power turbine) and the impact of typical control limits and control concepts.
Brun, Klaus, Kurz, Rainer
core  

Stress Corrosion Failure of a Low Pressure Disk from a 800MW Steam Turbine [PDF]

open access: yes, 2016
Case StudyCase Study 1: Stress corrosion cracking is known to be a function of stress, material and environment. However, a fourth variable that is often overlooked is operating time.
Tipton, Anthony
core   +1 more source

End Suction Centrifugal Pump Operating in Turbine Mode for Microhydro Applications

open access: yesAdvances in Mechanical Engineering, 2014
This paper reviews the current research works on the end suction centrifugal pump coupled with induction generator running in turbine mode for microhydro application. The information can be used by practicing engineers, researchers, and plant managers to
Mohd Azlan Ismail   +3 more
doaj   +1 more source

Selecting Between Hydrogen and Methanol for Fuel Cell‐Organic Rankine Cycle Hybrid Power Systems: A Comparative 4E Analysis

open access: yesEnergy Science &Engineering, EarlyView.
A 4E comparison of PEMFC‐ORC and DMFC‐ORC systems shows that PEMFC‐ORC achieves 21% higher energy efficiency, while DMFC‐ORC obtains 31% higher exergy efficiency and 57% lower levelized cost of electricity. However, DMFC‐ORC emits nearly twice the annual carbon dioxide equivalent of PEMFC‐ORC.
Zahra Piryaei   +2 more
wiley   +1 more source

Pump as Turbine for Micro Hydro Power [PDF]

open access: yes, 2010
Using pump as turbine and induction motor as generator has numerous benefits for remote area hydro project in term of cost saving. The objectives of this project are to determine the head and flow rate of a centrifugal pump in turbine mode, to design ...
Nor Azeanty binti Mohd Adzan, Nor Azeanty
core  

Experience With Vertical-Turbine Pumps Rebowl Upgrade [PDF]

open access: yes, 2001
Case StudyCS1Four 580 HP cooling tower feed pumps were upgraded by retrofitting improved bowl assemblies with enclosed stainless-steel impellers. Pumps exhibited capacity limitation up to 50% of rated and cavitation damage in original semi-open cast ...
Morales Casanova, César A.   +1 more
core   +1 more source

Techno‐Economic Analysis and Multi‐Objective Optimization of a Novel Combined Cooling and Power System Driven by Geothermal Source and Waste Heat From Data Center

open access: yesEnergy Science &Engineering, EarlyView.
A novel combined cooling and power generation system is proposed by integrating organic Rankine cycle (ORC) with an absorption heat transformer, which is driven by combining geothermal energy and data center's waste heat. The system using R601a yielded the best overall performance, achieving an exergy efficiency of 40.34% and an annual cost of 130.29 k$
Zerui Chen   +4 more
wiley   +1 more source

Structural design and 3D printing of flexible integrated electronic systems

open access: yesFlexMat, EarlyView.
This review provides a comprehensive overview of design and integration strategies for individual components in flexible electronics, highlights the 3D‐printing fabrication techniques, and discusses recent advances in system‐level integration and their applications in real‐time monitoring and intelligent robotics.
Jiani Gong   +8 more
wiley   +1 more source

Power Recovery Turbines For The Process Industry

open access: yes, 1986
Lecturepg. 3Pumps running in reverse as turbines are often used for energy recovery applications in the hydrocarbon processing industry. Empirical methods for predicting turbine performance from known pump performance are reviewed.
Gopalakrishnan, S.
core   +1 more source

A Detailed Review of Colburn and Friction Factors for Various Types of Fins Used in Compact Plate‐Fin Heat Exchangers

open access: yesHeat Transfer, EarlyView.
ABSTRACT Compact plate‐fin heat exchangers (PFHEs) are commonly utilized in diverse industries, including aerospace, automotive, processing, and space. Various fin configurations, such as Plain fins, Wavy fins, Lance and Offset fins (OSFs), Perforated fins, louvered fins, and pin fins, are employed in compact heat exchangers (CHEs).
Chennu Ranganayakulu
wiley   +1 more source

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