Results 81 to 90 of about 5,061 (219)

Development of Alternative Binary Mixtures to Replace HFC 134a in Domestic Refrigerator

Chemical Engineering Transactions, 2018
Thermodynamic and volumetric properties of alternate Refrigerant mixtures to replace R134a have been predicted using SRK EOS and modified PSRK mixing rule using UNIFAC method.
Parashurama Siddegowda, Govindegowda Mundur Sannappagowda, Ramesha D Kempegowda   +2 more
doaj   +1 more source

Experimental Study of a New Hydrocarbon Mixture for Domestic Re-frigerator to Replace R134a

ITEGAM-JETIA
In a domestic refrigerator with 4.49cc displacement compressors, the performance of R290 (48 by mass percent) and R600a (52 by mass percent) was examined experimentally. In our research, we employed a 210-litre refrigerator designed to run on R12 with a
Anjappa S B, parashurama s, Ramesha D K
doaj   +1 more source

Indications and practical approach to non-invasive ventilation in acute heart failure [PDF]

, 2017
In acute heart failure (AHF) syndromes significant respiratory failure (RF) is essentially seen in patients with acute cardiogenic pulmonary oedema (ACPE) or cardiogenic shock (CS).
Bueno, Hector, Christ, Michael, Cowie, Martin, Cullen, Louise, Disomma, Salvatore, Filippatos, Gerasimos, Gale, Chris P., Harjola, Veli Pekka, Lettino, Maddalena, Maisel, Alan S., Martin-Sanchez, F. Javier, Masip, Josep, McMurray, John, Mebazaa, Alexandre, Miro, Oscar, Mueller, Christian, other, and, Peacock, W. Frank, Platz, Elke, Price, Susanna, Ruschitzka, Frank, Seferovic, Petar, Tavares, Mucio, Vrints, Christiaan, Zeymer, Uwe   +24 more
core   +1 more source

Simulation Analysis and Experimental Study on Substituting R134a with R290 in Electric Vehicle Compressors

Zhileng xuebao
Because the driving method of electric vehicles differs from that of conventional ones， the power sources of electric vehicles can be diversified. The Global Warming Potential （GWP） and ozone depletion potential （ODP） values of the refrigerant R290 are ...
Chen Jianhong, Tao Leren, Huang Lihao, Wang Xiaofei, Li Xingjiang, Chen Haonan   +5 more
doaj  

IMPACT OF CAPITAL ON THE GROWTH PROCESS OF A SUGARCANE FARM IN MPUMALANGA [PDF]

The research was conducted for a representative 50 ha farm in the Onderberg region in Mpumalanga province, where farmers use a combination of centre-pivot, drip, and dragline systems of different sizes to grow sugarcane.
Grove, Bennie, Haile, B.O., Oosthuizen, L.K.   +2 more
core   +1 more source

Effects of Active Sting Damping on Common Research Model Data Quality [PDF]

, 2011
Recent tests using the Common Research Model (CRM) at the Langley National Transonic Facility (NTF) and the Ames 11-foot Transonic Wind Tunnel (11' TWT) produced large sets of data that have been used to examine the effects of active damping on transonic
Acheson, Michael J., Balakrishna, S.
core   +1 more source

Performance computation of window air conditioner with very low GWP near azeotropic refrigerant mixtures as a drop in Substitutes to R22

MATEC Web of Conferences, 2018
The principal objective of the present study is to compute the thermodynamic performance of window air conditioner based on standard vapour compression refrigeration cycle using R22, R407C and nineteen refrigerant mixtures.
Vali Shaik Sharmas, Setty Talanki Puttaranga, Babu Ashok   +2 more
doaj   +1 more source

Experimental Study on the Flow Condensation Heat Transfer of R290 and R22 in a Horizontal Circular Minitube

Zhileng xuebao, 2015
The condensation heat transfer characteristics of R290 and R22 were investigated experimentally in a horizontal circular minitube with 1.085 mm diameter. The mass flow rate of R22 is 200-1200 kg/(m2?s), and that of R290 is 200-650 kg/(m2?s).
Xiao Hang, Li Junming
doaj  

Review of hydrocarbon refrigerants as drop-in alternatives to high-GWP refrigerants in VCR systems: The case of R290

Cleaner Engineering and Technology
Global warming issues are of enormous interest to researchers and decision-makers. Some refrigerants have a large share of harmful emissions to the environment, so it is necessary to shed light on eco-friendly refrigerants and demonstrate the feasibility
Osama Abd Al-Munaf Ibrahim, Saif Ali Kadhim, Karrar A. Hammoodi, Farhan Lafta Rashid, Ali Habeeb Askar   +4 more
doaj   +1 more source

Experimental Study on R290 Performance of an Integrated Thermal Management System for Electric Vehicle

Energies
Integrated thermal management system (ITMS) technology for electric vehicles (EV) has become a major industry research direction. However, R290 refrigerants are still not applied on a large scale in EVs.
Zihao Luo, Shusheng Xiong, Min Wen, Jiahao Zhao, Yifei Zhang   +4 more
doaj   +1 more source