Results 51 to 60 of about 2,030 (213)

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

open access: yes, 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.   +66 more
core   +1 more source

Hybrid PCM\u2014aluminium foams\u2019 thermal storages: an experimental study [PDF]

open access: yes, 2018
The latent heat absorption phenomenon associated with melting of a suitable Phase Change Material can be an effective way to improve the Thermal Energy Storage behaviour in many applications. However, the most suitable materials to be used in heating and
Lazzarin, Renato M   +3 more
core   +1 more source

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

open access: yes, 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   +5 more
core   +1 more source

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

open access: yes, 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   +3 more
core   +2 more sources

Energy, Exergy and Economic Evaluation Comparison of Small-Scale Single and Dual Pressure Organic Rankine Cycles Integrated with Low-Grade Heat Sources

open access: yesEntropy, 2017
Low-grade heat sources such as solar thermal, geothermal, exhaust gases and industrial waste heat are suitable alternatives for power generation which can be exploited by means of small-scale Organic Rankine Cycle (ORC). This paper combines thermodynamic
Armando Fontalvo   +5 more
doaj   +1 more source

Thermo-economic analysis of working fluids for a ground source heat pump for domestic uses

open access: yesCase Studies in Thermal Engineering, 2021
Ground source heat pump, due to high coefficient of performance (COP) and use of low-temperature thermal energy source, is one of the best technologies to use renewable energy resources.
Mohammadreza Pishkariahmadabad   +5 more
doaj   +1 more source

Correlation for Condensation Heat Transfer in a 4.0 mm Smooth Tube and Relationship with R1234ze(E), R404A, and R290

open access: yesApplied Sciences, 2018
In this study, the condensation heat transfer coefficient and pressure drop characteristics of a 4 mm outside diameter smooth tube, using R32, R152a, R410A, and R1234ze(E) refrigerants, were examined.
Norihiro Inoue   +3 more
doaj   +1 more source

Techno‐Economic Analysis of Hydrocarbon‐CO2 Binary Mixtures in Heat Pump‐Based Thermal Energy Storages

open access: yesEnergy Technology, Volume 14, Issue 4, April 2026.
Heat‐pump charging of Carnot batteries with zeotropic large temperature glide CO2–alkane mixtures enables charging from ambient to ≈398.15 K with improved heat‐exchanger temperature matching at moderate pressure ratios. The highest COP occurs near xCO2 ≈ 0.15, whereas cost and throttling losses rise monotonically with CO2 content; butane isomers ...
Majid Zarif Sabbaghnia, Burak Atakan
wiley   +1 more source

Flow boiling heat transfer of a non-azeotropic mixture inside a single microchannel [PDF]

open access: yes, 2014
This paper was presented at the 4th Micro and Nano Flows Conference (MNF2014), which was held at University College, London, UK. The conference was organised by Brunel University and supported by the Italian Union of Thermofluiddynamics, IPEM, the ...
4th Micro and Nano Flows Conference (MNF2014)   +3 more
core  

Exergy analysis of organic Rankine cycle for waste heat recovery using low GWP refrigerants

open access: yesInternational Journal of Thermofluids, 2022
The use of exergy analysis in thermodynamic systems, as well as energy analysis, is quickly increasing. Exergy analysis is useful for identifying processes that cause exergy destruction and losses, and it may be used in conjunction with energy analysis ...
Abrar E Elahi   +4 more
doaj   +1 more source

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