Results 21 to 30 of about 4,929,610 (283)

Performance Improvement of a Flash-Binary Geothermal Power System Using Zeotropic Working Fluid; A Comprehensive Exergoeconomic Analysis and Optimization [PDF]

open access: yesAdvances in Engineering and Intelligence Systems, 2023
In this paper, a geothermal system is combined with an organic Rankine cycle to generate power. The zeotropic mixture is utilized to improve the organic Rankine cycle performance.
Seyed Sajad Mosaviasl   +4 more
doaj   +1 more source

Perencanaan Investasi Pengelolaan Ayam Petelur

open access: yesJurnal Teknik Industri, 2009
The decision making at the time being will result several effects to the present condition. Therefore, before making a decision in investment, it is important to have an accurate analysis. This will minimize the possibility of failure.
Febriyanti Ningsih
doaj   +1 more source

A Study on Optimum Insulation Thickness in Walls of Chinese Solar Greenhouse for Energy Saving

open access: yesAgronomy, 2022
Chinese solar greenhouses (CSGs) are characterized by unique walls to reduce the transmission of heat and promote the energy conservation in winter production, which promotes cultivation in the northeast region of China in winter.
Hui Xu   +5 more
doaj   +1 more source

Electro‐Organic Synthesis at a Stable Oil/Water/Solid Three‐Phase Interface Reactor

open access: yesAngewandte Chemie, EarlyView.
A porous membrane electrode (PME) reactor is developed to promote oil/water/solid three‐phase interfacial contact for electro‐organic synthesis. By promoting the formation of an oil/water interfacial region within or near an amphiphilic catalytic layer, the reactor enables efficient conversion of water‐insoluble organic reactants in aqueous ...
Deyin Chen   +7 more
wiley   +2 more sources

PAYBACK PERIOD ANALYSIS OF DISTANCE MASTER EDUCATION IN INDONESIA

open access: yesTRIKONOMIKA, 2023
Research on the rate of return on the learning process in distance higher education aims to measure the level of learning investment in post graduate program distance education. The method used in this research is descriptive research with a quantitative approach.
Taufani Kurniatun   +2 more
openaire   +1 more source

A novel method of acquiring geothermal energy from unconsolidated sandstone reservoir by multi-directional wells deep borehole heat exchanger

open access: yesCase Studies in Thermal Engineering, 2021
The clogging problem during injection seriously limits the development and utilization of geothermal resources in unconsolidated sandstone area.
Yanxin Wang, Xianbiao Bu
doaj   +1 more source

Analisis Kelayakan Teknis Dan Finansial Usaha Tani Jeruk Lemon (Citrus limon) Di Kecamatan Cihaurbeuti, Kabupaten Ciamis

open access: yesAgricultural Socio-Economic Empowerment and Agribusiness Journal
Lemons (Citrus limon) have considerable potential for further development in Indonesia, although the country still relies on imports to meet its domestic demand.
Miftah Farid   +2 more
doaj   +1 more source

An Economic analysis of the Luminaire-Level control of LED lighting in small office

open access: yesJournal of Asian Architecture and Building Engineering, 2022
The objective of this study is to perform an economic analysis of the luminaire-level control of LED lighting in a small office. For this, energy consumption and illuminance were measured for one year in a space where the luminaire-level controller of ...
Hye-Jin Kim, in-Ho Yang
doaj   +1 more source

Estimating the Financial Payback Period for Renewable Energy Investment – A Quasi-Systematic Review [PDF]

open access: yesОблік і фінанси
Accounting and finance discipline is intricately connected to the global campaign and advocacy for sustainable energy alternatives that balance costs and environmental sustainability. This paper aims to use the literature review to estimate the financial
Collins C Ngwakwe
doaj   +1 more source

A Review of Roofing Methods: Construction Features, Heat Reduction, Payback Period and Climatic Responsiveness

open access: yesEnergies, 2018
The roofs of buildings play an essential role in energy efficiency because a significant amount of solar radiation is absorbed by roofs in hot weather and a significant amount of heat is lost through roofs in cold weather.
Majed Abuseif, Zhonghua Gou
doaj   +1 more source

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