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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The readiness among the polytechnic engineering and non-engineering lecturers towards implementation of 4C in teaching [PDF]
, 2020 The paper discusses the readiness level of the 4C polytechnics lecturer (creative, critical, communication & collaboration) from the cognitive, psychomotor and affective domains. By using questionnaires as an instrument, this research employed the survey
Awang, Noor Hidayah, Ming, Foong Lee
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Trigeneration Turbine Units Based on Low Boiling Working Fluids
Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2022 A program that allows modeling, thermodynamically optimizing and performing exergetic analysis of more than a hundred different variations of the schemes of trigeneration turbine units based on low-boiling working fluids. With the aid of the program that
A. V. Ovsyannik, V. P. Kliuchinski
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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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The Analysis of Next-Generation Refrigerants in Terms of Energy, Exergy, and LCCP Perspective
Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 2023 In this study, commonly used hydrofluorocarbon (HFC)-based refrigerants R404A and R410A, as well as hydrofluoroolefin (HFO)-based environmentally friendly next-generation refrigerant R1234yf with a low global warming potential (GWP), were analyzed in ...
Mehmet Onur Karaagac +3 more
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Flame Suppression Effects of Binary Extinguishants on the Flammability of HFO-1243zf
Zhileng xuebao, 2023 HFO-1243zf (R1243zf) is a refrigerant with a low global warming effect and high development potential. The safety classification of R1243zf is A2; therefore, its flammability cannot be ignored.
Wu Xi +4 more
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Carbon Dioxide Heat Transfer Coefficients And Pressure Drops During Flow Boiling: Assessment Of Predictive Methods [PDF]
, 2010 Among the alternatives to the HCFCs and HFCs, carbon dioxide emerged as one of the most promising environmentally friendly refrigerants. In past years many works were carried out about CO2 flow boiling and very different two-phase flow characteristics ...
A. Rosato +3 more
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HVAC SYSTEM REMOTE MONITORING AND DIAGNOSIS OF REFRIGERANT LINE OBSTRUCTION [PDF]
, 2018 A heating, ventilation, and air conditioning (HVAC) system of a building includes a refrigerant loop. A monitoring system for the HVAC system includes a monitoring device installed at the building.
Alsaleem, Fadi M.
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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
Research on the Dissolution Characteristics of R1233zd(E) Using Lubricating Oils
Zhileng xuebao, 2022 R1233zd(E) has attracted extensive attention owing to its good environmental performance and cycle characteristics. To solve the matching problem between R1233zd(E) and lubricating oils, the miscibility and solubility properties of R1233zd(E) using ...
Chen Yubo +6 more
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