Results 21 to 30 of about 1,918 (181)

Energy assessment of an R134a refrigeration plant upgraded to an indirect system using R152a and R1234ze(E) as refrigerants [PDF]

, 2018
In this work the experimental results obtained from a direct expansion refrigerating plant converted into an indirect plant, are presented and discussed in terms of energy consumption for a commercial refrigerating unit plugged to a medium temperature ...
Cabello López, Ramón, Catalán-Gil, Jesús, Llopis, Rodrigo, Nebot-Andres, Laura, Sánchez García-Vacas, Daniel   +4 more
core   +1 more source

Feasibility of Using 2,3,3,3-Tetrafluoropropene (R1234yf) as a Solvent for Solid–Liquid Extraction of Biopharmaceuticals [PDF]

, 2003
Tetrafluoropropene (R1234yf) is the most likely replacement for tetrafluoroethane (R134a), a widely used refrigerant, propellant and solvent, characterised by very high global warming potential.
Suberu, J, Yamin, P, Cornell, R, Sam, A, Lapkin, Alexei   +4 more
core   +5 more sources

Thermal Performance Analysis of Low‐GWP Refrigerants in Automotive Air‐Conditioning System

Advances in Materials Science and Engineering, Volume 2020, Issue 1, 2020., 2020
The energy and exergy of low‐global warming potential (GWP) refrigerants were investigated experimentally and theoretically. Refrigerants with a modest GWP100 of ≤ 150 can be sufficient for bringing down emissions which were concerned for the automotive air‐conditioning system.
Yousuf Alhendal, Abdalla Gomaa, Gamal Bedair, Abdulrahim Kalendar, H.P.S Abdul Khalil   +4 more
wiley   +1 more source

Thermodynamic modelling and analysis of a solar organic Rankine cycle employing thermofluids [PDF]

, 2017
This paper presents thermodynamic modelling and simulation study of a small scale saturated solar organic Rankine cycle (ORC) which consists of a stationary, flat plate solar energy collector that is utilised as a vapour generator, a vane expander, a ...
Helvaci, H.U., Khan, Zulfiqar Ahmad
core   +1 more source

Experimental assessment of R134a and its lower GWP alternative R513A [PDF]

, 2017
Lower GWP refrigerants are essential to mitigate the impact of refrigeration systems on climate change. HFO/HFC mixtures are currently considered to replace HFCs in refrigeration and air conditioning systems.
Khodabandeh, Rahmatollah, Makhnatch, Pavel, Mota-Babiloni, Adrián, Navarro-Esbrí, Joaquín   +3 more
core   +2 more sources

Θερμοδυναμική ανάλυση, σχεδιασμός και οικονομικά στοιχεία συστήματος συμπαραγωγής ΖΝΧ και ηλεκτρικής ενέργειας με επίπεδους ηλιακούς συλλέκτες και οργανικό κύκλο Rankine [PDF]

, 2017
Εθνικό Μετσόβιο Πολυτεχνείο--Μεταπτυχιακή Εργασία.
Mavrodimitrakis, Dimitris, Μαυροδημητράκης, Δημήτρης   +1 more
core   +1 more source

New Eco-gas mixtures for the Extreme Energy Events MRPCs: results and plans

, 2019
The Extreme Energy Events observatory is an extended muon telescope array, covering more than 10 degrees both in latitude and longitude. Its 59 muon telescopes are equipped with tracking detectors based on Multigap Resistive Plate Chamber technology with
Abbrescia, M., Avanzini, C., Baldini, L., Batignani, G., Battaglieri, M., Boi, S., Bossini, E., Carnesecchi, F., Chiavassa, A., Cicalo, C., Cifarelli, L., Coccetti, F., Coccia, E., Corvaglia, A., De Gruttola, D., De Pasquale, S., Fabbri, F. L., Ferroli, L. Baldini, Frolov, V., Galante, L., Galeotti, P., Garbini, M., Gemme, G., Gnesi, I., Grazzi, S., Gustavino, C., Hatzifotiadou, D., La Rocca, P., Mandaglio, G., Maron, G., Mazziotta, M. N., Miozzi, S., Nania, R., Noferini, F., Nozzoli, F., Palmonari, F., Panareo, M., Panetta, M. P., Paoletti, R., Park, W., Pellegrino, C., Perasso, L., Pilo, F., Piragino, G., Pisano, S., Riggi, F., Righini, G. C., Ripoli, C., Rizzi, M., Rodriguez, O. Maragoto, Sartorelli, G., Scapparone, E., Schioppa, M., Scribano, A., Selvi, M., Serci, S., Squarcia, S., Taiuti, M., Terreni, G., Trifirò, A., Trimarchi, M., Vistoli, M. C., Votano, L., Williams, M. C. S., Zheng, L., Zichichi, A., Zuyeuski, R.   +66 more
core   +1 more source

Candidate eco-friendly gas mixtures for MPGDs [PDF]

, 2018
Modern gas detectors for detection of particles require F-based gases for optimal performance.Recent regulations demand the use of environmentally unfriendly F-based gases t o be limited or banned. This review studies properties of potential eco-friendly
Ban, Y., Benussi, L., Bianco, S., Chen, G., Colafranceschi, S., Ferrini, M., Grassini, S., Kjolbro, J., Li, Q., Muhammad, S., Parvis, M., Piccolo, D., Saviano, G., Sharma, A., Yang, D.   +14 more
core   +1 more source

Experimental determination of the optimum working conditions of a transcritical CO2 refrigeration plant with integrated mechanical subcooling [PDF]

, 2020
Subcooling methods for transcritical CO2 plants are being studied in order to improve their behavior. Among them, the Integrated Mechanical Subcooling system is one of the most promising owing that performs with high efficiency and it is a total-CO2 ...
Cabello López, Ramón, Calleja-Anta, Daniel, Catalán-Gil, Jesús, Llopis, Rodrigo, Nebot-Andres, Laura, Sánchez García-Vacas, Daniel   +5 more
core   +1 more source

System and component modelling and optimisation for an efficient 10 kWe low-temperature organic Rankine cycle utilising a radial inflow expander [PDF]

, 2015
Small-scale (10 kWe) organic Rankine cycles for low temperature applications such as heat recovery and solar power present a significant development opportunity but limited prototypes have been developed.
Sayma, A. I., White, M.
core   +1 more source