Results 51 to 60 of about 53,374 (230)

Thermophysical Properties of Low GWP Refrigerants: An Update

open access: yesInternational Journal of Thermophysics, 2023
AbstractIn the last decades, the industry of HVAC&R has faced continuous changes trying to identify environmentally friendly refrigerants for the numerous applications of the sector. However, the amount of low GWP fluids still available as potential refrigerants is limited to some natural fluids and, among synthetic chemicals, to hydrofluoroolefins
Fedele L.   +4 more
openaire   +1 more source

Life‐Cycle Assessment of Printed Electronic Components ‐ Case Study for Organic Electrochemical Transistors

open access: yesAdvanced Electronic Materials, EarlyView.
This tutorial introduces a practical framework for implementing early‐stage Life‐Cycle Assessment (LCA) in flexible and printed electronics. Using organic electrochemical transistors (OECTs) as a case study, the modular Process‐of‐Record and open‐access inventory provides a rich resource adaptable to a plethora of technologies in printed electronics ...
Laura Teuerle   +6 more
wiley   +1 more source

Analysis of a simple vapor compression and ejector refrigeration systems working with eco-friendly refrigerants

open access: yesRevue des Énergies Renouvelables
Transitioning to alternative refrigerants with low Global Warming Potential (GWP) in both vapor compression and ejector refrigeration systems emerges as a viable strategy to address the environmental impact associated with refrigeration technologies ...
Halla Aissani   +2 more
doaj   +1 more source

Demonstrating GWP*: a means of reporting warming-equivalent emissions that captures the contrasting impacts of short- and long-lived climate pollutants

open access: yesEnvironmental Research Letters, 2020
The atmospheric lifetime and radiative impacts of different climate pollutants can both differ markedly, so metrics that equate emissions using a single scaling factor, such as the 100-year Global Warming Potential (GWP _100 ), can be misleading.
John Lynch   +3 more
doaj   +1 more source

Comparative life cycle assessment of lighting systems and road pavements in an Italian twin- tube road tunnel [PDF]

open access: yes, 2018
This work calculates and discusses the Life Cycle Assessment (LCA) of four scenarios composed of two types of road pavements and two types of lighting systems to be built in an Italian twin-tube road tunnel.
Cantisani, Giuseppe   +2 more
core   +1 more source

AI in chemical engineering: From promise to practice

open access: yesAIChE Journal, EarlyView.
Abstract Artificial intelligence (AI) in chemical engineering has moved from promise to practice: physics‐aware (gray‐box) models are gaining traction, reinforcement learning complements model predictive control (MPC), and generative AI powers documentation, digitization, and safety workflows.
Jia Wei Chew   +4 more
wiley   +1 more source

Noise-Resilience Horizon of Groundwater Potential Maps Generated by Frequency-Ratio Data Integration

open access: yesFrontiers in Environmental Science, 2020
The study of groundwater distribution is gaining importance due to the mounting pressures exerted by rapid urban growth on water supply, especially in small islands that could experience faster supply deterioration through saltwater intrusion ...
Drandreb Earl Juanico   +2 more
doaj   +1 more source

P-V-T Behavior of 2,3,3,3-Tetrafluoroprop-1-ene (HFO-1234yf) in the Vapor Phase from (243 to 373) K [PDF]

open access: yes, 2010
The P-V-T properties of 2,3,3,3-tetrafluoroprop-1-ene (CF 3 CFdCH 2 , HFO-1234yf), an environmentally friendly refrigerant, were measured using a constant volume apparatus.
Di Nicola, Cristiano   +4 more
core   +1 more source

EKSTRAKSI MINYAK KENANGA (Cananga odorata) UNTUK PEMBUATAN SKIN LOTION PENOLAK SERANGGA

open access: yesJurnal MIPA, 2014
Keberadaan serangga seperti nyamuk Aedes aegypti dan lalat sering menimbulkan gangguan bagi manusia. Salah satu cara untuk menghindari gangguan serangga tersebut adalah dengan memakai anti serangga berbentuk lotion.
GWP Sari, Supartono -
doaj  

A Screening of Low-GWP Refrigerant for Ejector Refrigeration

open access: yesChemical Engineering Transactions, 2018
Ejector refrigeration is a promising technology to reduce primary energy consumption for building cooling. Unfortunately, a change in the design criteria (i.e., geometry, working fluid, operating conditions) influences the system performance owing to variations in the local fluid dynamic phenomena at the “local-scale”.
Besagni G., Croci L., Nesa R.
openaire   +4 more sources

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