Results 1 to 10 of about 2,468,009 (256)

Thermodynamic Performance Analysis and Refrigerant Evaluation of Enhanced Cascade Vapor-Injection Refrigeration Systems [PDF]

Entropy
To enhance the compression efficiency and refrigerant flow capacity for low-temperature refrigeration applications, the vapor-injection strategy is innovatively synthesized with two-stage cascade refrigeration systems.
Jidong Li, Maolin Cai, Weiqing Xu, Guanwei Jia   +3 more
doaj   +2 more sources

Agricultural Co-Product Management: An LCA Perspective on the Use of Safflower Oilcake from Bio-Oil Production in Umbria Region, Italy

Environmental and Climate Technologies, 2022
This work evaluates the impact of cultivating Safflower (Carthamus tinctorius L.) in marginal lands of the Umbrian territory (Italy) to produce oil. The analysis considers the entire production process, aiming to understand which are the most impacting ...
Pelaracci Simone, Rocchi Lucia, Romagnoli Francesco, Boggia Antonio, Paolotti Luisa   +4 more
doaj   +1 more source

Energy and exergy analysis of a combined system cascade organic Rankine cycle and cascade refrigerat

Journal of Thermal Engineering, 2021
In this paper, a new combined system is proposed for recovering thermal energy at medium temperature using a cascade organic Rankine cycle to feed a cascade refrigeration cycle.
Touaibi RABAH, Hasan KOTEN, Boudjema FADHILA, Selmane SALMA, Hemis MOHAMED   +4 more
doaj   +1 more source

Performance comparison of basic and parallel double evaporator Organic Rankine Cycle integrated with

Journal of Thermal Engineering, 2023
Performance comparison of basic organic Rankine cycle (ORC) and parallel double evapora-tor ORC (PDORC) integrated with solar power tower (SPT) driven intercooled cascade sCO2 (supercritical carbon dioxide) cycle was carried out in present study.
Yunis KHAN, Radhey SHYAM MISHRA
doaj   +1 more source

Applicable design of multi-functional cascade heat pump system for an office building [PDF]

E3S Web of Conferences, 2022
When the cascade heat pump system is applied as a multi-functional system that can be used not only for hot water supply but also for air-conditioning of buildings, the low-stage cycle is responsible for indoor heating and cooling thermal load, and the ...
Kim Beom-Jun, Cho Hye-Jin, Lee Soo-Jin, Kwon Taek-Don, Jeong Jae-Weon   +4 more
doaj   +1 more source

Thermodynamic Analysis of an Innovative Cold Energy Storage System for Auto-Cascade Refrigeration Applications

Energies, 2023
The cooling capacity needed by ultra-low temperature apparatus cannot be reached economically with a single vapor compression refrigeration cycle due to the constraint of the high compressor pressure ratio.
Zhenzhen Liu, Jingde Jiang, Zilong Wang, Hua Zhang   +3 more
doaj   +1 more source

Economic analysis of gas turbine/supercritical carbon dioxide combined cycle under different cycle configurations

Case Studies in Thermal Engineering, 2023
S–CO2 cycle systems have many advantages, but coupling with gas turbine power generation systems has been poorly studied. Considering the huge cold energy of LNG, it can not only be used as coolant in combined cycle system, but also the natural gas after
Du Wang, Yuxuan Hu, Jinkun Zhang, Xin Ren, Zhigang Wang, Mujie Xue, Tingju Wang, Mingyuan Wan   +7 more
doaj   +1 more source

Investigation of an Innovative Cascade Cycle Combining a Trilateral Cycle and an Organic Rankine Cycle (TLC-ORC) for Industry or Transport Application

Energies, 2018
An innovative cascade cycle combining a trilateral cycle and an organic Rankine cycle (TLC-ORC) system is proposed in this paper. The proposed TLC-ORC system aims at obtaining better performance of temperature matching between working fluid and heat ...
Xiaoli Yu, Zhi Li, Yiji Lu, Rui Huang, Anthony Paul Roskilly   +4 more
doaj   +1 more source

Comparative analysis of cascade refrigeration system based on energy and exergy using different refr

Journal of Thermal Engineering, 2020
In this study a comparative analysis on the basis of energy and exergy of cascade refrigeration system using different refrigerant pair, R13 for low temperature cycle (LTC) and R134a, R290 and R717 for high temperature cycle (HTC) has been done by ...
Vipin KUMAR
doaj   +1 more source

Field-resolved high-order sub-cycle nonlinearities in a terahertz semiconductor laser

Light: Science & Applications, 2021
Two-dimensional terahertz strong-field spectroscopy reveals wave-mixing processes up to eighth order in a free-running quantum cascade laser, unraveling its sub-cycle gain dynamics and nonlinearities in a regime of negative absorption.
J. Riepl, J. Raab, P. Abajyan, H. Nong, J. R. Freeman, L. H. Li, E. H. Linfield, A. G. Davies, A. Wacker, T. Albes, C. Jirauschek, C. Lange, S. S. Dhillon, R. Huber   +13 more
doaj   +1 more source