Results 71 to 80 of about 53,374 (230)

On the relationship between metrics to compare greenhouse gases – the case of IGTP, GWP and SGTP [PDF]

Earth System Dynamics, 2012
Metrics for comparing greenhouse gases are analyzed, with a particular focus on the integrated temperature change potential (IGTP) following a call from IPCC to investigate this metric.
D. J. A. Johansson, C. Azar
doaj   +1 more source

Analysis of the economic viability and environmental impacts of a conceptual process model for the recovery of lactic acid from spent media in cultivated meat production

Biotechnology Progress, EarlyView.
Abstract Scaled production of cultivated meat (CM) will co‐produce large volumes of spent media. Recycling of abundant metabolites such as lactic acid in spent media offers an opportunity for valorization and reduction of the carbon footprint of CM production; however, the feasibility has yet to be examined.
Josh Wimble, Reina Ashizawa, Elliot W. Swartz   +2 more
wiley   +1 more source

Codazzi spinors and globally hyperbolic manifolds with special holonomy

, 2007
In this paper we examine the structure of Riemannian manifolds with a special kind of Codazzi tensors. We use them to construct globally hyperbolic Lorentzian manifolds with complete Cauchy hypersurfaces for any weakly irreducible holonomy representation
Baum, Helga, Müller, Olaf
core   +2 more sources

High‐Temperature Heat Pump Test Bench with n‐Butane (R‐600) Generating Steam

Chemie Ingenieur Technik, EarlyView.
This work involves building a test bench for a high‐temperature heat pump (HTHP) and analyzing the measurements. The focus is on steam generation using an HTHP to decarbonize process steam demand. The findings indicate that stable steam generation is possible, providing a higher heat transfer coefficient in the heat pump's condenser.
Sebastian Benkert, Lukas Joos, Ursula Wittstadt, Torsten Will, Andreas Burger, Lena Schnabel, Stefan Henninger, Thorsten Klahm   +7 more
wiley   +1 more source

Eco-friendly gas mixtures for Resistive Plate Chambers based on Tetrafluoropropene and Helium

, 2016
Due to the recent restrictions deriving from the application of the Kyoto protocol, the main components of the gas mixtures presently used in the Resistive Plate Chambers systems of the LHC experiments will be most probably phased out of production in ...
Abbrescia, M, Benussi, L., Bianco, S., Ferrini, Mauro, Muhammad, Saleh, Passamonti, L., Piccolo, D., Piccolo, D., Pierluigi, D., Primavera, F., Russo, A., Saviano, Giovanna   +11 more
core   +1 more source

A Methodology to Integrate Closed‐Cycle Heat Pumps into Batch Distillation Columns

Chemie Ingenieur Technik, EarlyView.
Batch distillation often cannot use vapor recompression due to contamination risks in food and pharma. This study proposes a design for integrating closed‐loop heat pumps using natural fluids. Results show significant energy savings, offering a sustainable alternative to traditional setups.
Philipp Dorn, Michael Libuda, Thomas Meyer, Christian Hoffmann, Jens‐Uwe Repke, Stefan Elbel   +5 more
wiley   +1 more source

Groundwater potential mapping in semi-arid region of Northern Nigeria by integrating analytic hierarchy process and GIS

Frontiers in Water
Groundwater resource management in drylands, characterized by climate variability and population growth, is difficult. Exploration and exploitation of groundwater, due to inadequate surface water is very costly. This study employed the analytic hierarchy
Abdulmutallib A. Saidu, Ali Aldrees, Salisu Dan'azumi, Sani I. Abba, Salahu M. Hamza   +4 more
doaj   +1 more source

use natural gas consumption in 201Scenarios to decarbonize residential water heating in California [PDF]

, 2017
This paper presents the first detailed long-term stock turnover model to investigate scenarios to decarbonize the residential water heating sector in California, which is currently dominated by natural gas.
Kammen, Daniel M, Raghavan, Shuba V, Wei, Max   +2 more
core  

Transport properties measurement on low GWP alternative refrigerants [PDF]

AIP Conference Proceedings, 2017
New experimental data on the thermal conductivity and the viscosity of low-GWP refrigerants such as HFOs are reported in order to contribute to the development of low-GWP refrigeration/heat pump systems. Accurate data on thermodynamic and transport properties are indispensable to design and to manufacture the systems with high efficiency.
Keishi Kariya, Mohammad Ariful Islam, Alam Md Jahangir, Hirotaka Ishida, Akio Miyara   +4 more
openaire   +1 more source

Potential Analysis of On‐Site Oxygen and Ozone Production for Wastewater Treatment Plants

Chemie Ingenieur Technik, EarlyView.
The potential of a power‐to‐gas process focusing on the oxygen stream to cover an upcoming demand of ozone at German wastewater treatment plants is analyzed. Economic and ecological parameters are compared to the conventional production of hydrogen and oxygen. Powered by on‐site produced wind energy, the process is deemed beneficial.
Vincenta Franßen, Paul Goerdten, Christian Hoffmann, Jens‐Uwe Repke   +3 more
wiley   +1 more source