Results 21 to 30 of about 5,916 (264)
Carbon Emission Assessment and Economic Analysis of Refrigerant Recycling
Zhileng xuebao, 2021 China has entered the end of the hydrochlorofluorocarbon (HCFCs) refrigerant phase out, and will soon start to reduce its production and consumption of HFCs simultaneously in 2024.
Wang Yue +4 more
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Experimental Investigation on VCR system using Nano-refrigerant for COP Enhancement
Chemical Engineering Transactions, 2018 Nano fluids have high heat transfer potential, increased thermal properties in comparison with conventional working fluids which increases the Co-efficient of performance of the refrigeration system.
Raghu Ande +2 more
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A Screening of Low-GWP Refrigerant for Ejector Refrigeration
Chemical Engineering Transactions, 2018 Ejector refrigeration is a promising technology to reduce primary energy consumption for building cooling. Unfortunately, a change in the design criteria (i.e., geometry, working fluid, operating conditions) influences the system performance owing to variations in the local fluid dynamic phenomena at the “local-scale”.
Besagni G., Croci L., Nesa R.
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Energies, 2022 With the increasing global requirements for environmental protection, refrigerants with ODP of 0 and low GWP are widely concerned and applied. In this paper, the CFD numerical method simulates the R134a centrifugal compressor directly replaced by R1234yf
Kexin Yi +5 more
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Energies, 2021 This paper reports the results of heat transfer during refrigerant flow in rectangular mini-channels at stationary conditions. The impacts of selected parameters on boiling are discussed, i.e., thermal and flow parameters, dimensions and orientation of ...
Magdalena Piasecka, Kinga Strąk
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Applying the concepts of efficiency and effectiveness to analyze the influence of the number of passes in the shell and tubes condenser thermal performance [PDF]
Журнал інженерних наук, 2021 The work analyzes the influence of the number of passes in a shell and tubes condenser heat exchanger, with an inlet pressure of R134a refrigerant in the shell equal to 1.2 MPa.
Nogueira E.
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Quantum-circuit refrigerator [PDF]
Nature Communications, 2017 AbstractQuantum technology promises revolutionizing applications in information processing, communications, sensing and modelling. However, efficient on-demand cooling of the functional quantum degrees of freedom remains challenging in many solid-state implementations, such as superconducting circuits.
Partanen, Matti +6 more
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Approximate Thermal Calculation of the Superheated Steam Condenser of Heat Pumps
Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2022 A comparative analysis of the methods of approximate thermal calculation of the superheated steam condenser of the steam compression heat pump of the heat supply system is presented.
V. I. Volodin, S. V. Zditovetskaya
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Molecular Oncology, EarlyView.Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen +11 more
wiley +1 more source
Frontiers in Chemistry, 2017 Background: The thermal conductivity of fluids can be calculated by several computational methods. However, these methods are reliable only at the confined levels of density, and there is no specific computational method for calculating thermal ...
Forouzan Ghaderi +3 more
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