Bioco2, a New Danish Funded Project for Improved Low Cost Biogas Upgrading and Pure Co2 Production

2019 ◽  
Author(s):  
Randi Neerup ◽  
Susana Almeida ◽  
Kay Thomsen ◽  
Rasmus Find ◽  
Niels Z. R. Larsen ◽  
...  
Keyword(s):  
Low Cost ◽  
Co2 Production ◽  
Biogas Upgrading ◽  
Funded Project

scholarly journals Theoretical and Economic Evaluation of Low-Cost Deep Eutectic Solvents for Effective Biogas Upgrading to Bio-Methane

Energies ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 3379
Author(s):  
Edyta Słupek ◽  
Patrycja Makoś ◽  
Jacek Gębicki
Keyword(s):  
Economic Evaluation ◽  
Excess Enthalpy ◽  
Low Cost ◽  
Choline Chloride ◽  
Unit Cost ◽  
Deep Eutectic Solvents ◽  
Molar Ratio ◽  
Biogas Upgrading ◽  
Screening Model ◽  
Effective Removal

This paper presents the theoretical screening of 23 low-cost deep eutectic solvents (DESs) as absorbents for effective removal of the main impurities from biogas streams using a conductor-like screening model for real solvents (COSMO-RS). Based on thermodynamic parameters, i.e., the activity coefficient, excess enthalpy, and Henry’s constant, two DESs composed of choline chloride: urea in a 1:2 molar ratio (ChCl:U 1:2), and choline chloride: oxalic acid in a 1:2 molar ratio (ChCl:OA 1:2) were selected as the most effective absorbents. The σ-profile and σ-potential were used in order to explain the mechanism of the absorptive removal of CO2, H2S, and siloxanes from a biogas stream. In addition, an economic analysis was prepared to demonstrate the competitiveness of new DESs in the sorbents market. The unit cost of 1 m3 of pure bio-methane was estimated to be in the range of 0.35–0.37 EUR, which is comparable to currently used technologies.

scholarly journals A Fully Open-Source Approach to Intelligent Edge Computing: AGILE’s Lesson

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1309
Author(s):  
Massimo Vecchio ◽  
Paolo Azzoni ◽  
Andreas Menychtas ◽  
Ilias Maglogiannis ◽  
Alexander Felfernig
Keyword(s):  
Low Cost ◽  
Cost Effective ◽  
Pollution Monitoring ◽  
Quantified Self ◽  
Air Pollution Monitoring ◽  
Industrial Iot ◽  
Funded Project ◽  
Software And Hardware ◽  
Iot Devices ◽  
The Internet Of Things

In this paper, we describe the main outcomes of AGILE (acronym for “Adaptive Gateways for dIverse muLtiple Environments”), an EU-funded project that recently delivered a modular hardware and software framework conceived to address the fragmented market of embedded, multi-service, adaptive gateways for the Internet of Things (IoT). Its main goal is to provide a low-cost solution capable of supporting proof-of-concept implementations and rapid prototyping methodologies for both consumer and industrial IoT markets. AGILE allows developers to implement and deliver a complete (software and hardware) IoT solution for managing non-IP IoT devices through a multi-service gateway. Moreover, it simplifies the access of startups to the IoT market, not only providing an efficient and cost-effective solution for industries but also allowing end-users to customize and extend it according to their specific requirements. This flexibility is the result of the joint experience of established organizations in the project consortium already promoting the principles of openness, both at the software and hardware levels. We illustrate how the AGILE framework can provide a cost-effective yet solid and highly customizable, technological foundation supporting the configuration, deployment, and assessment of two distinct showcases, namely a quantified self application for individual consumers, and an air pollution monitoring station for industrial settings.

Locomotory energetics and metabolic fuel reserves of the Virginia opossum.

1994 ◽  
Vol 197 (1) ◽  
pp. 1-16
Author(s):  
R A Fournier ◽  
J M Weber
Keyword(s):  
Treadmill Exercise ◽  
Low Cost ◽  
Co2 Production ◽  
O2 Consumption ◽  
Cost Of Transport ◽  
Metabolic Fuel ◽  
Available Energy ◽  
Cost Of Locomotion ◽  
Equivalent Mass ◽  
Virginia Opossum

Marsupials have lower resting metabolic rates than placental mammals, but it is not clear whether particular species can extend this energetic advantage to locomotion. Some active marsupials have a low cost of locomotion, but other more sedentary species, such as the Virginia opossum, appear to run very inefficiently. Steady-state rates of O2 consumption (VO2) and CO2 production (VCO2) were measured at rest and during horizontal treadmill exercise in wild-caught, trained opossums. Average daily VO2 in in undisturbed animals was 7.73 +/- 0.40 ml O2 kg-1 min-1 (5.67 +/- 0.20 ml O2 kg-1 min-1 during light and 9.84 +/- 0.81 ml O2 kg-1 min-1 during dark hours, mean +/- S.E.M., N = 6). Net cost of locomotion ranged between 6.16 and 8.99 J kg-1 s-1 as speed increased and was always higher than for an average mammal of equivalent mass. Net cost of transport decreased as speed increased and was 15-80% higher than for an average mammal. During aerobic locomotion, most of the energy was provided by carbohydrate oxidation, which accounted for 60-95% of VO2 as speed increased. Glycogen and triglyceride reserves were quantified in the major storage depots to estimate potential survival time and travelling distance. Enough metabolic fuel was stored to survive for at least 1 week without eating, and 95% of this energy was in adipose tissue triglycerides. However, maximal travelling distance was less than 2 km because opossum locomotion is mainly supported by carbohydrate reserves, which represented only 4% of the available energy. We conclude that aerobic, ground locomotion of Virginia opossums is associated with two major energetic handicaps because their particularly high cost of transport and the nature of the main oxidative fuel they consume are both incompatible with prolonged locomotion.

scholarly journals Freeze Granulated Zeolites X and A for Biogas Upgrading

Molecules ◽  
2020 ◽  
Vol 25 (6) ◽  
pp. 1378
Author(s):  
Kritika Narang ◽  
Farid Akhtar
Keyword(s):  
Mass Transfer ◽  
Fossil Fuels ◽  
Volume Fraction ◽  
Low Cost ◽  
Energy Resource ◽  
High Mass ◽  
Co2 Separation ◽  
Separation Performance ◽  
Co2 Uptake ◽  
Biogas Upgrading

Biogas is a potential renewable energy resource that can reduce the current energy dependency on fossil fuels. The major limitation of utilizing biogas fully in the various applications is the presence of a significant volume fraction of carbon dioxide in biogas. Here, we used adsorption-driven CO2 separation using the most prominent adsorbents, NaX (faujasite) and CaA (Linde Type A) zeolites. The NaX and CaA zeolites were structured into hierarchically porous granules using a low-cost freeze granulation technique to achieve better mass transfer kinetics. The freeze granulation processing parameters and the rheological properties of suspensions were optimized to obtain homogenous granules of NaX and CaA zeolites 2–3 mm in diameter with macroporosity of 77.9% and 68.6%, respectively. The NaX and CaA granules kept their individual morphologies, crystallinities with a CO2 uptake of 5.8 mmol/g and 4 mmol/g, respectively. The CO2 separation performance and the kinetic behavior were estimated by breakthrough experiments, where the NaX zeolite showed a 16% higher CO2 uptake rate than CaA granules with a high mass transfer coefficient, 1.3 m/s, compared to commercial granules, suggesting that freeze-granulated zeolites could be used to improve adsorption kinetics and reduce cycle time for biogas upgrading in the adsorption swing technology.

scholarly journals Making Open Access Book Funding Work Fairly

2021 ◽  
Author(s):  
Martin Eve ◽  
Tom Grady
Keyword(s):  
Open Access ◽  
Low Cost ◽  
Library Funding ◽  
Scholarly Communications ◽  
The Future ◽  
Funded Project ◽  
Library Support ◽  
Publishing Community ◽  
The Uk

In late 2020, COPIM, an Arcadia and Research England funded project, announced an innovative revenue model to sustainably fund open access (OA) monographs: Opening the Future. This initiative harnesses the power of collective library funding: increasing collections through special access to highly-regarded backlists, and expanding the global shared OA collection while providing a less risky path for smaller publishers to make frontlist monographs OA. We introduced this model at the 15th Munin Conference on Scholarly Publishing 2020 but this is no ‘story so far’ conference presentation proposal. Since Opening the Future launched, we’ve seen several other collective library funding models emerge in quick succession, including MIT’s Direct 2 Open, Michigan’s Fund to Mission, and Cambridge University Press’ Flip it Open. In the same year, the UK Research and Innovation’s (UKRI) new policy was announced, and it included OA requirements for monographs. The landscape is clearly changing rapidly - in this presentation we will appraise our model in the context of this changing environment. The programme has had success since its launch. Within a few months the first publisher to adopt the model, CEU Press, had accrued enough library support to fund their first three OA monographs. Soon thereafter the initiative was recognised by the publishing community and nominated for an ALPSP Award for Innovation in Publishing. And the programme is growing; a second well-respected publisher, Liverpool University Press, launched with Opening the Future in June 2021. The COPIM project has now begun to turn its focus to the thorny problem of scaling up. But herein lies a tension. OA monograph publishing needs to be sustainable not just for publishers, but also for libraries. Opening the Future was designed to be low-cost and simple, slotting into acquisitions budgets and existing library purchasing workflows. However, as we bring the programme to more university presses and libraries, how do we ensure we are not just adding another circle to the OA labyrinth that libraries are attempting to navigate? How might Opening the Future scale without increasing the administrative and decision-making burden already on collections and scholarly communications teams, who are already picking through a tangle of transformative agreements, pay-to-publish deals, author affiliations, and legacy subscriptions?  In this session, we will engage the audience through these questions, as well as discuss the role of the programme in the wider policy landscape and how it is positioned alongside other emerging OA collective funding initiatives.

scholarly journals Preparation of Activated Carbon from the Biodegradable film for Co2 Capture Applications

2018 ◽  
Vol 20 (3) ◽  
pp. 75-80
Author(s):  
J. Serafin ◽  
A.K. Antosik ◽  
K. Wilpiszewska ◽  
Z. Czech
Keyword(s):  
Activated Carbon ◽  
Activated Carbons ◽  
Low Cost ◽  
Chemical Activation ◽  
Total Pore Volume ◽  
Nitrogen Adsorption ◽  
Waste Utilization ◽  
Co2 Production ◽  
Biodegradable Film ◽  
Adsorption Desorption

Abstract In this work for the fi rst time, activated carbons were prepared from carboxymethyl fi lm (low-cost carboxymethyl fi lm waste), using chemical activation with potassium hydroxide. The samples were characterized by nitrogen adsorption-desorption at 77 K, XRD, SEM methods. The high values of the specifi c surface area and total pore volume were achieved and were equal to 2064 m2/g and 1.188 cm3/g, respectively. Waste from the fi lm can be immediately utilized without CO2 production. This is the environmentally friendly way of waste utilization. Through this process, we can protect our environment. This study showed that the activated carbon obtained from carboxymethyl fi lm waste can be used as a good adsorbent for CO2 adsorption.

Decomposition of the metastable beta titanium alloy Ti-15-3

1983 ◽  
Vol 41 ◽  
pp. 264-265
Author(s):  
Y. L. Chen ◽  
S. Fujlshiro
Keyword(s):  
Low Cost ◽  
High Strength ◽  
Alpha Phase ◽  
Thick Sheet ◽  
Omega Phase ◽  
Beta Titanium Alloy ◽  
Beta Titanium ◽  
Beta Matrix ◽  
Metastable Beta ◽  
Very High

Metastable beta titanium alloys have been known to have numerous advantages such as cold formability, high strength, good fracture resistance, deep hardenability, and cost effectiveness. Very high strength is obtainable by precipitation of the hexagonal alpha phase in a bcc beta matrix in these alloys. Precipitation hardening in the metastable beta alloys may also result from the formation of transition phases such as omega phase. Ti-15-3 (Ti-15V- 3Cr-3Al-3Sn) has been developed recently by TIMET and USAF for low cost sheet metal applications. The purpose of the present study was to examine the aging characteristics in this alloy.The composition of the as-received material is: 14.7 V, 3.14 Cr, 3.05 Al, 2.26 Sn, and 0.145 Fe. The beta transus temperature as determined by optical metallographic method was about 770°C. Specimen coupons were prepared from a mill-annealed 1.2 mm thick sheet, and solution treated at 827°C for 2 hr in argon, then water quenched. Aging was also done in argon at temperatures ranging from 316 to 616°C for various times.

Chromic Acid Etching of Polyethylene

1973 ◽  
Vol 31 ◽  
pp. 72-73
Author(s):  
J. D. Muzzy ◽  
R. D. Hester ◽  
J. L. Hubbard
Keyword(s):  
Chromic Acid ◽  
Low Cost ◽  
Acid Etching ◽  
Crystalline Morphology ◽  
Bulk Specimen ◽  
Morphological Studies ◽  
Perfect Form ◽  
Molecular Length ◽  
Lamellar Texture ◽  
Cost Studies

Polyethylene is one of the most important plastics produced today because of its good physical properties, ease of fabrication and low cost. Studies to improve the properties of polyethylene are leading to an understanding of its crystalline morphology. Polyethylene crystallized by evaporation from dilute solutions consists of thin crystals called lamellae. The polyethylene molecules are parallel to the thickness of the lamellae and are folded since the thickness of the lamellae is much less than the molecular length. This lamellar texture persists in less perfect form in polyethylene crystallized from the melt.Morphological studies of melt crystallized polyethylene have been limited due to the difficulty of isolating the microstructure from the bulk specimen without destroying or deforming it.

Glass Knife Geometry as Seen by the SEM

1971 ◽  
Vol 29 ◽  
pp. 454-455
Author(s):  
J. Temple Black
Keyword(s):  
Low Cost ◽  
Amorphous Material ◽  
Stress Concentrations ◽  
Basic Tool ◽  
Tool Materials ◽  
Optical Inspection ◽  
Surface Flaws ◽  
Slip Planes ◽  
Glass Knife ◽  
Diamond Knife

In ultramicrotomy, the two basic tool materials are glass and diamond. Glass because of its low cost and ease of manufacture of the knife itself is still widely used despite the superiority of diamond knives in many applications. Both kinds of knives produce plastic deformation in the microtomed section due to the nature of the cutting process and microscopic chips in the edge of the knife. Because glass has no well defined slip planes in its structure (it's an amorphous material), it is very strong and essentially never fails in compression. However, surface flaws produce stress concentrations which reduce the strength of glass to 10,000 to 20,000 psi from its theoretical or flaw free values of 1 to 2 million psi. While the microchips in the edge of the glass or diamond knife are generally too small to be observed in the SEM, the second common type of defect can be identified. This is the striations (also termed the check marks or feathers) which are always present over the entire edge of a glass knife regardless of whether or not they are visable under optical inspection. These steps in the cutting edge can be observed in the SEM by proper preparation of carefully broken knives and orientation of the knife, with respect to the scanning beam.

Spectraplot: A PC-based spectrum translation and display program

1988 ◽  
Vol 46 ◽  
pp. 918-919
Author(s):  
H. O. Colijn
Keyword(s):  
Low Cost ◽  
Transfer Program ◽  
File Transfer ◽  
Transfer Data ◽  
Error Checking ◽  
Data Files ◽  
The University

Many labs today wish to transfer data between their EDS systems and their existing PCs and minicomputers. Our lab has implemented SpectraPlot, a low- cost PC-based system to allow offline examination and plotting of spectra. We adopted this system in order to make more efficient use of our microscopes and EDS consoles, to provide hardcopy output for an older EDS system, and to allow students to access their data after leaving the university.As shown in Fig. 1, we have three EDS systems (one of which is located in another building) which can store data on 8 inch RT-11 floppy disks. We transfer data from these systems to a DEC MINC computer using “SneakerNet”, which consists of putting on a pair of sneakers and running down the hall. We then use the Hermit file transfer program to download the data files with error checking from the MINC to the PC.

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