Results 11 to 20 of about 739 (173)

Investigation on the Miscibility of Lubricants with Natural Refrigerant R290

Zhileng xuebao, 2013
In order to explore the miscibility of lubricants with the natural refrigerant R290, an experimental device was established. The miscibility of naphthenic oil, paraffinic oil, polyol ester, polyalkylene glycol and alkylbenzene with the natural ...
Yang Ruijie, Yang Zhongxue, Sun Rong, Chen Yushu, Zhang Ling, Liu Qiang   +5 more
doaj   +1 more source

Performance Experiment of R290/CO2 Cascade Refrigeration System

Zhileng xuebao, 2007
Performance experiments of R290/CO2 cascade refrigeration system were conducted. The performance of a cascade refrigeration system having a high temperature cycle using R290 as refrigerant and a CO2 based low temperature cycle was compared with that of a
宁静红, 李惠宇, 彭苗
doaj   +3 more sources

Application of R290 in High-powered Commercial Water Chiller

Zhileng xuebao, 2018
In this article, a model used to predict the R290 refrigerant charge in a high-powered commercial water chiller was developed, and the error is within 3%.
Liu Cichong, Shi Junru, Wu Yun, Shi Junye, Ge Fanggen, Chen Jiangping   +5 more
doaj   +1 more source

A Program to Improve General Palliative Cancer Care Guideline Implementation: Development, Acceptability, and Feasibility of Implementation Strategies. [PDF]

J Eval Clin Pract
ABSTRACT Rationale Implementing palliative care for patients with cancer in the healthcare sector is a complex task. Some patients with cancer do not receive timely and comprehensive palliative care tailored to their needs, potentially reducing their quality of life.
Sørensen DM, Egholm CL, Dalton SO, Rosted E, Brodersen JB, Møller ML, Petersen MA, Heymann AV, Bidstrup P.   +8 more
europepmc   +2 more sources

Outcomes among non-Western immigrant patients and Danish-born patients with acute myeloid Leukaemia: A Danish population-based cohort study. [PDF]

Br J Haematol
Summary Non‐Western immigrant patients (NWIPs) may be a vulnerable population when diagnosed and treated for acute myeloid leukaemia (AML). Here we report selected quality parameters related to diagnosis, treatment, and outcome of newly diagnosed AML among NWIPs (n = 119) and Danish‐born patients (DBPs) (n = 4689). No adjusted differences were observed
Kristensen DT, Simonsen MR, Roug AS, Marcher CW, Ørskov AD, Sørensen ALT, El-Galaly TC, Baech J.   +7 more
europepmc   +2 more sources

Chiller performance study with refrigerant R290 [PDF]

AIP Conference Proceedings, 2019
The purpose of this paper is to examine energy efficiency through the study of performance in vapour compression cycle for auditorium in University of Indonesia using natural refrigerant R290. The installation of the chiller system which is the first in Indonesia within academic institution is particularly relevant in light of the gaining interest and ...
Zulfa Fuadi, Ardiyansyah Yatim, Rachmah Rizky, Nyayu Aisyah, Idrus Alhamid, Budihardjo Budihardjo, Nandy Putra   +6 more
openaire   +1 more source

In-tube Evaporation Pressure-drop Characteristics of R290 and R404A

Zhileng xuebao, 2006
The experimental results of in-tube evaporation pressure-drop of R290 and R404A in the horizontal smooth tube and the horizontal microfin tube were compared with calculation results by Lockhart & Martinelli pressure-drop correlation,respectively.Moreover,
韩晓霞, 南晓红, 刘咸定
doaj   +3 more sources

Experimental study of a R290 variable geometry ejector

Journal of Physics: Conference Series, 2023
Abstract Ejectors are classified as fluid-dynamics controlled devices where the “component-scale” performances are imposed by the local-scale fluid dynamic phenomena. For this reason, ejector performances (measured by the pressure-entrainment ratio coordinate of the critical point) are determined by the connection of operation conditions,
Besagni G., Inzoli F., Croci L., Brignoli V., Smolka J., Palacz M., Haida M., Bodys J., Fingas R., Nowak A. J., Melka B., Stebel M., Piechnik E.   +12 more
openaire   +3 more sources

Performance analysis of solar milk refrigerator using energy efficient R290

Case Studies in Thermal Engineering, 2021
In this paper, an experimental investigation on the performance of vapor-compression based milk refrigerator using R290 as refrigerant is carried out. Milk refrigerator is driven by solar photovoltaic.
Shailendra Kasera, Rajlakshmi Nayak, Shishir Chandra Bhaduri   +2 more
doaj   +1 more source

Design and Analysis of Charge‐Reduced Refrigerant Cycles Using R290

Chemie Ingenieur Technik, 2023
AbstractR290 is one of the most promising refrigerants for heat pumps and cooling processes working in a temperature range of –15 to 70 °C. The nearly neglectable global warming potential and attractive thermodynamic properties allow the design of climate‐friendly and efficient refrigeration systems and heat pumps.
Schnabel, Lena, Methler, Timo, Hassan, Abdelrahman H., Dankwerth, Clemens, Gonzálvez Macia, José María   +4 more
openaire   +3 more sources