Results 11 to 20 of about 1,180,308 (314)

Investigation into the effects of surface condensation in steam-driven twin screw expanders / trans. from Engl. M. A. Fedorova [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2021
During the operation of twin screw expanders with slightly superheated vapours or even two-phase fluids, surface condensation on machine parts occurs during the filling period and the expansion phase when the working fluid is in contact with cooler ...
M. A. Fedorova
doaj   +1 more source

Multi-Disciplinary Analysis of Working Fluids on Thermal Performance of the High-Power Diesel Engine System

open access: yesMachines, 2022
Multi-disciplinary analysis was performed to analyze and investigate the thermal performance during transient operation of a 2 L diesel engine system with two different cooling systems.
Geesoo Lee
doaj   +1 more source

Energy and Exergy Analyses of Geothermal Organic Rankine Cycles Considering the Effect of Brine Reinjection Temperature

open access: yesEnergies, 2022
The organic Rankine cycles (ORCs) have been used to convert low-enthalpy geothermal brine into power. Parameter optimization and working fluid selection are the main approaches to enhance geothermal ORC performance.
Yuan Zhao   +6 more
doaj   +1 more source

Visualization and Heat Transfer Performance of Mini-Grooved Flat Heat Pipe Filled with Different Working Fluids

open access: yesMicromachines, 2022
Mini-grooved flat heat pipe (MGFHP) possesses the advantages of high compactness, no mechanical component, super thermal conductivity, and excellent temperature uniformity, which can meet the demand for electronic devices efficiently cooling.
Fei Xin, Qiang Lyu, Wenchao Tian
doaj   +1 more source

IMPROVING THE RELIABILITY OF HYDROSYSTEMS OF LAND RECLAMATION MACHINES BY ENSURING THE PURITY OF WORKING LIQUIDS IN THE CONDITIONS OF THE REPUBLIC OF TAJIKISTAN [PDF]

open access: yesVolga Region Farmland, 2019
The article presents an assessment of the impact of contaminated working fluid of hydraulic systems of land reclamation machines on the efficiency of the equipment operation in the Republic of Tajikistan.
E.G. Rilyakin   +3 more
doaj   +1 more source

Experimental investigation of a cascaded organic Rankine cycle plant for the utilization of waste heat at high and low temperature levels [PDF]

open access: yes, 2020
A power plant with two cascaded organic Rankine cycles (CORC) to exploit waste heat from a 800 kWe combined heat and power plant, fueled by biogas, is designed and tested.
Heim, André   +4 more
core   +1 more source

Predicting the Need for Fluid Therapy—Does Fluid Responsiveness Work? [PDF]

open access: yesJournal of Intensive Care, 2017
Fluid overdose can be harmful in critically ill patients. Since central venous pressure (CVP) is currently considered to be an inappropriate indicator of preload, much attention is being given to predicting fluid responsiveness, i.e., the response of stroke volume (SV) or cardiac output (CO) to fluid challenge.
Hiroshi Ueyama, Sawami Kiyonaka
openaire   +3 more sources

Working Fluid Stability in Large-Scale Organic Rankine Cycle-Units Using Siloxanes—Long-Term Experiences and Fluid Recycling

open access: yesEnergies, 2016
The results in this work show the influence of long-term operation on the decomposition of working fluids in eight different organic rankine cycle (ORC) power plants (both heat-led and electricity-led) in a range of 900 kW el to 2 MW el ...
Tobias G. Erhart   +3 more
doaj   +1 more source

Thermoeconomic Analysis of Organic Rankine Cycle From Napier Grass Biomass

open access: yesActa Technologica Agriculturae, 2023
The organic Rankine cycle (ORC) power plant is derived from a centrifugal chiller air conditioning system as an alternative to a diesel replacement modular power plant due to its low cost compared to ORC’s manufacture.
Permana Diki Ismail   +2 more
doaj   +1 more source

Multi-criteria optimization of heat recovery unit in terms of the climatic factor [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение"
The use of heat pumps in exhaust air heat recovery systems is an effective energy-saving technology. Due to the increase in the number of refrigerants with different characteristics, a problem arises with making a decision on the use of a specific ...
V. A. Nikitina   +3 more
doaj   +1 more source

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