Results 41 to 50 of about 34,483 (233)

Comparative thermo-economic analysis of regenerative Rankine cycles with two feed water heaters

open access: yesCase Studies in Thermal Engineering, 2021
Five configurations of regenerative Rankine cycle with two feed water heaters are compared in this paper. One configuration has two open feed water heaters (OFWH).
Somchart Chantasiriwan
doaj   +1 more source

Multiple Rankine topping cycles [PDF]

open access: yes, 1995
The efficiency of a Rankine cycle is primarily determined by the temperatures of heat addition and rejection. However, no working fluid has been identified which will operate in a Rankine cycle over an extremely wide temperature range. Multiple Rankine topping cycles offer a technique for achieving high thermal efficiencies in power plants by allowing ...
openaire   +2 more sources

Optimization and Assessment of Parabolic Trough Solar Power Plants in Arid Climates: A Case Study in Tunisia

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT This study aims to model a solar power plant (SPP) utilizing parabolic trough collectors (PTC) to fulfill the electricity needs in an arid zone of the southern of Tunisia. The research integrates both experimental and numerical approaches. A prototype of a PTC was first constructed and experimentally tested under arid climates. Subsequently, a
Anissa Ghomrassi   +2 more
wiley   +1 more source

Organic Rankine cycle receiver development [PDF]

open access: yes, 1981
The selected receiver concept is a direct-heated, once-through, monotube boiler operated at supercritical pressure. The cavity is formed by a cylindrical copper shell and backwall, with stainless steel tubing brazed to the outside surface.
Haskins, H. J.
core   +1 more source

A new smooth failure criterion for concrete inspired by Lubliner's condition

open access: yesStructural Concrete, EarlyView.
Abstract A new failure criterion with 10 parameters is proposed, based on Lubliner's idea of joining two Drucker–Prager cones. The novelty lies in the way of introducing deviatoric shape variation: through two Podgórski's functions. This feature allows for improving plane stress cross‐section's compatibility with experimental data.
Inez Kamińska, Aleksander Szwed
wiley   +1 more source

FLUOROETHERS AS A WORKING FLUIDS FOR LOW TEMPERATURE ORGANIC RANKINE CYCLE [PDF]

open access: yesProblems of the Regional Energetics, 2014
Hydrofluoroethers as a new class of working fluids for the organic Rankine cycle have been considered to utilize the low-potential waste heat. Temperature range 300…400 K was chosen to provide energy conversion of waste heat from fuel cells.
Artemenko S.V
doaj  

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

A Call to Industry: Unearthing Synergies in Subsurface Storage Technologies

open access: yesGreenhouse Gases: Science and Technology, EarlyView.
ABSTRACT Subsurface storage technologies (SSTs), including geological CO2 sequestration, underground hydrogen storage, compressed‑air energy storage and thermal energy storage, are emerging as a scalable route for industry to achieve the terawatt‑hour storage flexibility and permanent carbon removal that evolving energy systems demand.
Julien Mouli‐Castillo   +2 more
wiley   +1 more source

Simulator of Organic Rankine Cycle

open access: yesJurnal Otomasi Kontrol dan Instrumentasi, 2018
A program package was developed to simulate the operation of an organic Rankine cycle system. The brine ejected from a geothermal plant usually is directly injected back through the injection well into the ground. The brine, however, with a flow rate of 3.125 kg/s and temperature range of 150°C to 170°C is considered to still contain significant amount
Eghan Dharmabudhi Pramodana   +1 more
openaire   +1 more source

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