Results 21 to 30 of about 1,680,915 (216)

Regression Model of Dynamic Pulse Instabilities during Condensation of Zeotropic and Azeotropic Refrigerant Mixtures R404A, R448A and R507A in Minichannels

open access: yesEnergies, 2022
This paper presents experimental research and mathematical modeling data concerning the impact of unit dynamic instabilities on the phase-transition condensation processes of the zeotropic mixtures R404A and R448A and azeotropic R507A refrigerants in ...
Waldemar Kuczyński   +2 more
doaj   +1 more source

Techno-economic feasibility of CO2 utilization in sustainable energy harvesting: Energy–Exergy–Economic–Environmental (4E) analysis

open access: yesEnergy Conversion and Management: X
In the context of the green energy transition, the organic Rankine cycle (ORC) is explored for energy conversion from renewable energy sources. The majority of ORC systems are explored with synthetic chemicals-based zeotropic mixtures as working fluids ...
Kumaran Kannaiyan, Bhawandeep Sharma
doaj   +1 more source

Assessing Energy Efficiency of Compression Heat Pumps in Drying Processes when Zeotropic Hydrocarbon Mixtures are Used as Working Agents

open access: yesMATEC Web of Conferences, 2016
Presents the results of studies of innovative materials in the field of renewable energy.The paper proposes a design and a formula for assessing energy efficiency of the heat pump air dryer, which uses zeotropic hydrocarbon mixtures of saturated ...
Shurayts Alexander   +2 more
doaj   +1 more source

Performance of binary zeotropic mixtures in organic Rankine cycles (ORCs)

open access: yesEnergy Conversion and Management, 2022
Performance of binary zeotropic mixtures in organic Rankine cycles (ORCs)
Shahrooz, Mina   +2 more
openaire   +2 more sources

Consolidation of multiple binary distillation columns for large heat duty savings

open access: yesAIChE Journal, Volume 72, Issue 7, July 2026.
ABSTRACT The enormous scales of chemical and petrochemical plants present significant challenges in separating and purifying numerous mixed streams generated within a facility, as well as in achieving effective energy utilization and process intensification.
Parikshit S. Kadu, Rakesh Agrawal
wiley   +1 more source

Optimization of binary zeotropic mixture working fluids for an organic Rankine cycle for waste heat recovery between centrifugal compressor stages

open access: yesEnergy Science & Engineering, 2020
The organic Rankine cycle is an effective way to recover low‐temperature waste heat, and a mixture working fluid can effectively improve the performance of the organic Rankine cycle.
Jingxiang Lin, Guoliang Qin, Han Yue
doaj   +1 more source

Design and Optimization of a Novel Kalina‐Organic Rankine Cycle System Based on LNG Cold Energy Utilization

open access: yesAsia-Pacific Journal of Chemical Engineering, Volume 21, Issue 3, May/June 2026.
ABSTRACT This study proposes a novel integrated system (SDKC‐DORC) that combines a split‐flow dual‐pressure Kalina cycle with a secondary organic Rankine cycle for the synergistic utilization of solar energy and liquefied natural gas (LNG) cold energy.
Ke Xiao   +6 more
wiley   +1 more source

Temperature glide matching in a zeotropic mixture heat pump [PDF]

open access: yes, 2017
The use of zeotropic mixtures in heat pumps should lead to a reduction of the exergy losses within the heat exchangers due to the temperature glide (TG) and thus to an improvement of the entire process. In a previous publication (ECOS 2016), the coefficient of performance (COP) as a function of evaporation / condensation temperature, compressor ...
Venzik, Valerius, Atakan, Burak
openaire   +3 more sources

Integrated Flue‐Gas Heat Recovery for Optimized Steam and Power Generation Using Organic Rankine Cycle (ORC): A Technical and Economic Assessment

open access: yesEnergy Science &Engineering, Volume 14, Issue 5, Page 2499-2513, May 2026.
Integration of a steam cycle with an existing gas turbine increased efficiency from 32% to 51%, reducing fuel consumption by 21.4% and CO2 emissions by 18.6%. The modification generated USD 13.9 million annual savings and lowered the Levelized Cost of Energy to 38.7 USD/MWh, with a 3‐year payback.
Vahid Pirouzfar   +2 more
wiley   +1 more source

Techno‐Economic Analysis of Hydrocarbon‐CO2 Binary Mixtures in Heat Pump‐Based Thermal Energy Storages

open access: yesEnergy Technology, Volume 14, Issue 4, April 2026.
Heat‐pump charging of Carnot batteries with zeotropic large temperature glide CO2–alkane mixtures enables charging from ambient to ≈398.15 K with improved heat‐exchanger temperature matching at moderate pressure ratios. The highest COP occurs near xCO2 ≈ 0.15, whereas cost and throttling losses rise monotonically with CO2 content; butane isomers ...
Majid Zarif Sabbaghnia, Burak Atakan
wiley   +1 more source

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