scholarly journals Energy Saving and Renewable Energy production at University of Kashan, Kashan, Iran

2021 ◽  
Vol 1 ◽  
Author(s):  
Majid Monemzadeh ◽  
Mahnaz Talebi-Dastenaei2
Keyword(s):  
Renewable Energy ◽  
Energy Saving ◽  
Energy Efficient ◽  
Energy Production ◽  
Fossil Fuel ◽  
Energy System ◽  
The Other ◽  
Solar Panels ◽  
Renewable Energy Production ◽  
Fossil Fuel Energy

University of Kashan was founded in 1974 and is the oldest institution of higher education in Kashan. Kashan (33° 58' 59" N / 51° 25' 56" E) climate is classified as a hot and dry by the Köppen-Geiger system. This climate causes a large amount of energy consumption for University at springs and summers. On the other hand, it means that sun is shining strongly for more than 6 months and University of Kashan has been working on some solutions to use solar energy and decrease dependency on the old fossil-fuel energy system. The current paper studies some of the main activities of University of Kashan on Energy Saving and Renewable Energy Production programs such as CCHP plant (The first Combined Cool, Heat, and Power plant in Iran), using solar panels and energy-efficient appliances.

scholarly journals Endangered elements, critical raw materials and conflict minerals

2019 ◽  
Vol 102 (4) ◽  
pp. 304-350 ◽  
Author(s):  
Christopher J Rhodes
Keyword(s):  
Renewable Energy ◽  
Energy Production ◽  
Fossil Fuels ◽  
Raw Materials ◽  
Energy System ◽  
Modern Technology ◽  
Low Carbon ◽  
Solar Panels ◽  
Conflict Minerals ◽  
Earth Abundant

Amid present concerns over a potential scarcity of critical elements and raw materials that are essential for modern technology, including those for low-carbon energy production, a survey of the present situation, and how it may unfold both in the immediate and the longer term, appears warranted. For elements such as indium, current recycling rates are woefully low, and although a far more effective recycling programme is necessary for most materials, it is likely that a full-scale inauguration of a global renewable energy system will require substitution of many scarcer elements by more Earth-abundant material alternatives. Currently, however, it is fossil fuels that are needed to process them, and many putative Earth-abundant material technologies are insufficiently close to the level of commercial viability required to begin to supplant their fossil fuel equivalents “necessarily rapidly and at scale”. As part of a significant expansion of renewable energy production, it will be necessary to recycle elements from wind turbines and solar panels (especially thin-film cells). The interconnected nature of particular materials, for example, cadmium, gallium, germanium, indium and tellurium, all mainly being recovered from the production of zinc, aluminium and copper, and helium from natural gas, means that the availability of such ‘hitchhiker’ elements is a function of the reserve size and production rate of the primary (or ‘attractor’) material. Even for those elements that are relatively abundant on Earth, limitations in their production rates/supply may well be experienced on a timescale of decades, and so a more efficient (reduced) use of them, coupled with effective collection and recycling strategies, should be embarked upon urgently.

scholarly journals Renewable energy production and demand dataset for the energy system of Colombia

Data in Brief ◽  
2020 ◽  
Vol 28 ◽  
pp. 105084 ◽  
Author(s):  
Oscar Pupo-Roncallo ◽  
Javier Campillo ◽  
Derek Ingham ◽  
Kevin Hughes ◽  
Mohammed Pourkashanian
Keyword(s):  
Renewable Energy ◽  
Energy Production ◽  
Energy System ◽  
Renewable Energy Production

scholarly journals Integrated Engineering, Environmental, and Economical Modelling of Micro Hydro Plant (MHP) Production

2021 ◽  
Vol 945 (1) ◽  
pp. 012033
Author(s):  
Al Dianty Marelianda ◽  
Reza Fathurahman ◽  
Frederik Joseph Putuhena ◽  
Rizka Arbaningrum ◽  
Zuchra Helwani
Keyword(s):  
Renewable Energy ◽  
Power Plant ◽  
Natural Resources ◽  
Energy Production ◽  
Energy Systems ◽  
Solar Panels ◽  
Design Flood ◽  
Flood Discharge ◽  
Renewable Energy Production ◽  
Total Discharge

Abstract The use of renewable energy has commonly concentrated on energy production through wind engines and solar panels. Nowadays, the micro-hydropower (MHP) plant has a great challenge as an important contributor to energy systems. Indonesia has the potential natural resources to develop that power plant, in the form of the river where is abundant throughout all provinces. The research aims to address solving issues regarding deficit energy by renewable energy production. The environmental and hydrological approaches were used to determine the location to obtain the optimal and proper utilization of MHP. The analysing from all modelling creates an economical assessment of MHP energy production. The result recommends MHP with the capacity of 2 x 4.0 MW and a total discharge of 14.30 m3/second whereas design flood discharge is 813.47 m3/second (Q100 year). The implementation of MHP is an effort to achieve independent energy in the region.

scholarly journals Residential Densification for Positive Energy Districts

2021 ◽  
Vol 3 ◽  
Author(s):  
James Bambara ◽  
Andreas K. Athienitis ◽  
Ursula Eicker
Keyword(s):  
Renewable Energy ◽  
Energy Efficient ◽  
Energy Production ◽  
Energy Performance ◽  
Hot Water ◽  
Positive Energy ◽  
Efficiency Measures ◽  
Production Of Hydrogen ◽  
Renewable Energy Production ◽  
Simulation Scenario

The energy footprint of houses can be reduced by replacing the aging stock with higher density and more energy efficient homes equipped with on-site renewable energy production. In this study, a “double density” simulation scenario is considered where each existing detached house in a community is replaced with two houses of equal living area on the same land lot. The new houses were assumed to be equipped with several energy efficiency measures (envelope, HVAC, and domestic hot water) and a building-integrated photovoltaic (BIPV) roof. The TRNSYS software was used to simulate the annual energy performance of the buildings in Montreal, Québec, Canada (45.5°N). It was found that the two new houses, which can accommodate twice the number of people on the same land lot, consumed 30% less energy than the existing house. Individually, each of the new houses required 65% less electricity than the existing house (reduced from 22,560 to 7,850 kWh yr−1). In addition, the BIPV roof installed on the two new houses could generate nearly three times more electricity (44,000 kWh yr−1) than they consumed (15,700 kWh yr−1). Annually, nearly half (44%) of the house's electricity can be directly supplied by the BIPV system. A significant portion of the annual solar electricity generation (84%), which cannot be directly utilized by the houses, can be stored on-site for later use to increase self-consumption (e.g., power-to-thermal energy or charging electric vehicles) or could be exported to the grid to support decarbonization elsewhere (e.g., production of hydrogen fuel for transportation). The combined effect of energy efficient construction and on-site renewable energy production would enable occupants to shift from consuming 5,640 kWh yr−1 to producing 3,540 kWh yr−1. Residential densification can significantly contribute toward retrofitting existing communities into resilient positive energy districts.

scholarly journals Sustainable biodiesel generation through catalytic transesterification of waste sources: a literature review and bibliometric survey

RSC Advances ◽  
2022 ◽  
Vol 12 (3) ◽  
pp. 1604-1627
Author(s):  
Walid Nabgan ◽  
Aishah Abdul Jalil ◽  
Bahador Nabgan ◽  
Arvind H. Jadhav ◽  
Muhammad Ikram ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Literature Review ◽  
Energy Production ◽  
Fossil Fuel ◽  
Renewable Energy Production ◽  
Sustainable Renewable Energy

Sustainable renewable energy production is being intensely disputed worldwide because fossil fuel resources are declining gradually.

scholarly journals The Path Toward a Hydrogen Economy: How Industry Can Broaden the Use of Hydrogen

2020 ◽  
Author(s):  
Keyword(s):  
Free Energy ◽  
Renewable Energy ◽  
Energy Security ◽  
Energy Production ◽  
Energy System ◽  
Hydrogen Economy ◽  
Large Variability ◽  
The Past ◽  
Renewable Energy Production ◽  
And Storage

In the past couple of years, it became evident that hydrogen would need to play a pivotal role in a carbon-free energy system. It would help decarbonize hard-to-abate sectors and act as an energy carrier to manage large variability in renewable energy production and enhance energy security. In most cases, its transportation and storage over a certain distance and timeframe is cheaper than that of electricity. For hydrogen to make an impact, it needs to expand its utility beyond its existing applications.

scholarly journals The Energy System of an Ecovillage: Barriers and Enablers

Land ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 682
Author(s):  
Zita Szabó ◽  
Viola Prohászka ◽  
Ágnes Sallay
Keyword(s):  
Renewable Energy ◽  
Spatial Structure ◽  
Energy Management ◽  
Energy Production ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Energy Sources ◽  
Energy Management System ◽  
Production And Consumption ◽  
Ecologically Sustainable

Nowadays, in the context of climate change, efficient energy management and increasing the share of renewable energy sources in the energy mix are helping to reduce greenhouse gases. In this research, we present the energy system and its management and the possibilities of its development through the example of an ecovillage. The basic goal of such a community is to be economically, socially, and ecologically sustainable, so the study of energy system of an ecovillage is especially justified. As the goal of this community is sustainability, potential technological and efficiency barriers to the use of renewable energy sources will also become visible. Our sample area is Visnyeszéplak ecovillage, where we examined the energy production and consumption habits and possibilities of the community with the help of interviews, literature, and map databases. By examining the spatial structure of the settlement, we examined the spatial structure of energy management. We formulated development proposals that can make the community’s energy management system more efficient.

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