Results 81 to 90 of about 89,592 (288)

Organizational and legal aspects of developing and implementing prospective heat supply schemes in municipalities [PDF]

open access: yes, 2016
The paper analyses current legislations that regulate the development and implementation of municipal heat supply systems. A cost-effectiveness analysis of an investment programme model taken for a particular heat supply scheme in a Sverdlovsk regional ...
Munts, V. A., Munts, Y. G.
core   +2 more sources

Impact of Distillation Column Design on Potential for the Integration of Mechanical Vapor Recompression

open access: yesChemie Ingenieur Technik, EarlyView.
Mechanical vapor recompression integration in distillation is analyzed, focusing on feed preheating and column pressure drop. Binary methanol–water and benzene–toluene separations are studied to identify optimal designs, which are further assessed in a bioethanol vacuum distillation sequence regarding energetic, ecological, and economic performance ...
Thorben Hochhaus   +3 more
wiley   +1 more source

Performance assessment of a potential underground thermal storage facility: Case study of the closed mine Prosper‐Haniel in the Ruhr coal mining area in Germany

open access: yesDeep Underground Science and Engineering, EarlyView.
This study demonstrates the feasibility of an underground closed‐loop thermal storage facility at a post‐mining site, intended for seasonal heat energy storage. Its principal design shows water flow directions in winter and summer (1, 2), heat pumps (3), an upper water reservoir (4), and connecting pipes (5).
Dmytro Rudakov, Oleksandr Inkin
wiley   +1 more source

Energetic and Economic Assessment of Pipe Network Effects on Unused Energy Source System Performance in Large-Scale Horticulture Facilities

open access: yesEnergies, 2015
As the use of fossil fuel has increased, not only in construction, but also in agriculture due to the drastic industrial development in recent times, the problems of heating costs and global warming are getting worse.
Jae Ho Lee   +4 more
doaj   +1 more source

JT8D and JT9D jet engine performance improvement program. Task 1: Feasibility analysis [PDF]

open access: yes
JT8D and JT9D component performance improvement concepts which have a high probability of incorporation into production engines were identified and ranked.
Gaffin, W. O., Webb, D. E.
core   +1 more source

ANALISIS KELAYAKAN EKONOMI RENCANA PENAMBANGAN BATUBARA PIT B3 PT XYZ [PDF]

open access: yes, 2016
Analisis kelayakan investasi usaha pertambangan bertujuan untuk mengetahui kelayakan usaha dan kemampuan investasi dalam memberikan keuntungan terhadap modal yang ditanam dalam perusahaan pertambangan batubara.
Tifani Sastika
core  

Analisis Payback Period Sebagai Dasar Kelayakan Investasi

open access: yesJurnal Daya Saing, 2016
Abstract: Investment is the main decision finances for the long term usually requires a large amount of funds that need to be analyzed in depth before running out investment activities, investment can basically refers to the economic activity of a country , the activity of investment is economically is advantageous , Interest Eligibility investing is ...
openaire   +2 more sources

Ultra‐Fast and Economical Pre‐Breakdown Electrochemical Synthesis of Intrinsically Conductive Polymer Suspension for Production of Safe Lithium‐Ion Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This paper presents a breakthrough pre‐breakdown electrochemical method for synthesizing polyNiMeOSalen suspensions, achieving an 83% yield and nanoscale dispersion ($1500/kg) and environmental impact (1.42 kg CO2eq/kg). We report a novel pre‐breakdown electrochemical synthesis method for producing polyNiMeOSalen suspensions with exceptional ...
Evgenii Beletskii   +6 more
wiley   +1 more source

Gender Equity, Student Loans and Returns on Investment in American Higher Education

open access: yesInternational Journal of Sociology of Education, 2017
This study examines practices that impact females’ earnings and, in particular, their ability to repay student loans. Salary inequities experienced by female college graduates along with student loans are addressed.
Amany Saleh   +3 more
doaj   +1 more source

Closing the California Clean Energy Divide: Reducing Electric Bills in Affordable Multifamily Rental Housing with Solar+storage [PDF]

open access: yes, 2016
This economic analysis indicates that pairing solar PV with battery storage systems can deliver significant electricity bill savings for California affordable housing residents and property owners.Battery storage is emerging as an effective new strategy ...
Ben Airth   +5 more
core  

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