scholarly journals Integrating Energy Demand and Local Renewable Energy Sources in Smart Urban Development Zones: New Options for Climate-Friendly Resilient Urban Planning

Energies ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3672 ◽  
Author(s):  
Zach ◽  
Kretschmer ◽  
Stoeglehner
Keyword(s):  
Urban Development ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Waste Heat ◽  
Renewable Energy Sources ◽  
Ambient Air ◽  
Energy Sources ◽  
Gas Emissions ◽  
Fossil Energy ◽  
Heating And Cooling

In recent years, most cities have experienced rapid population growth. Concurrently, international policies have called for substantial reductions of greenhouse gas emissions. Additionally, the resilience of energy-supply systems has become more important. Consequently, solutions to exhaust locally-available sources must be developed to minimize the fraction of fossil fuels for heating, cooling and electricity. This article shows an example of designing a low-temperature heating and cooling grid based on locally-available renewables and waste heat and introduces general hypotheses concerning smart energy planning in urban development zones. Taking an urban development area in Vienna, Austria, as example, it is shown that wastewater, geothermal and (office) waste heat, solar energy, and the heat content of ambient air can play an important role within a climate-friendly urban energy concept and that heating and cooling demand can be covered completely on-site. From an environmental point of view, the concept is promising, as greenhouse gas emissions and the non-renewable primary energy consumption can be reduced by over 70% compared to conventional gas heating, while, based on current (fossil) energy prices, it is economically not fully competitive. The gap could be closed e.g. by CO2 taxes on fossil energy sources or (temporal) subsidies for renewables. Additionally, reservations of stakeholders in the energy sector against this innovative approach must be dismantled.

scholarly journals Special Issue on Cutting-Edge Technologies for Renewable Energy Production and Storage

2020 ◽  
Vol 10 (3) ◽  
pp. 837
Author(s):  
Matteo Prussi
Keyword(s):  
Renewable Energy ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Energy Production ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Special Issue ◽  
Gas Emissions ◽  
Renewable Energy Production ◽  
And Storage

Anthropogenic greenhouse gas emissions are dramatically influencing the environment, and research is strongly committed in proposing alternatives, mainly based on renewable energy sources [...]

Greenhouse gas emissions from renewable energy sources: A review of lifecycle considerations

2014 ◽  
Vol 39 ◽  
pp. 461-475 ◽  
Author(s):  
Nana Yaw Amponsah ◽  
Mads Troldborg ◽  
Bethany Kington ◽  
Inge Aalders ◽  
Rupert Lloyd Hough
Keyword(s):  
Renewable Energy ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Gas Emissions

scholarly journals Policies and measures for renewable energy sources and achievement of targets by 2020 in Croatia

2010 ◽  
Vol 14 (3) ◽  
pp. 569-578
Author(s):  
Igor Raguzin ◽  
Davor Vesligaj ◽  
Vladimir Jelavic
Keyword(s):  
Renewable Energy ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Development Strategy ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Energy Market ◽  
Gas Emissions ◽  
Policies And Measures ◽  
Set Up

This paper is considering set up a longer-term perspective and plan of actions for the development of renewable energy infrastructure in Croatia in accordance with the new Croatian Energy Sector Development Strategy. Overall target till the year 2020 has been calculated in accordance with effort sharing methodology used for Directive 2009/28/EC. The paper presents some main existing policies and measures for achieving this ambitious target, including feed-in tariffs, guarantees of origin, and greenhouse gas emissions taxation. It is addressed the necessity for creating enabling environment for promotion of renewable energy sources and gradually remove barriers for its stronger penetration on the energy market.

scholarly journals Reduction of greenhouse gas emissions from renewable energy technologies in agricultural sectors of Uzbekistan

2019 ◽  
Vol 135 ◽  
pp. 01035 ◽  
Author(s):  
Anvar Anarbaev ◽  
Obid Tursunov ◽  
Dilshod Kodirov ◽  
Shavkat Muzafarov ◽  
Aziz Babayev ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Anaerobic Fermentation ◽  
Renewable Energy Sources ◽  
Electric Energy ◽  
Energy Sources ◽  
Gas Emissions ◽  
Total Potential ◽  
The Republic

This paper presents the results of calculations to reduce greenhouse gas emissions in agricultural sectors of the Republic of Uzbekistan within the framework of the project: “Sustainable Agriculture Development and Climate Change Mitigation”. The initial data were the characteristics of the implemented installations based on renewable energy sources for the period of 2014-2018. Most of these installations were biogas settings based on the principle of anaerobic fermentation, as well as solar water heating and photovoltaic stations. The calculations were performed according to the “AMS-III.D” and “AMS-I.J” methods by the “Global Environmental Fund” experts. The developed computer programs were applied to calculate the arrival of radiation and the duration of sunshine during the year on the territory of Uzbekistan. According to the calculations, the reduction of greenhouse gas emissions was 1338840.5 tons of CO2 for the indicated period during the operation of installations based on renewable energy sources. Within the framework of this project, the total potential of generating electric energy from biogas settings and solar photovoltaic stations at the amount of 10,424 MWh was estimated.

scholarly journals SUPPORT FOR SMALL RENEWABLE ENERGY SOURCES IN SLOVAKIA

2015 ◽  
Vol 1 (2) ◽  
pp. 39-44
Author(s):  
Eva Jankovichová
Keyword(s):  
Energy Efficiency ◽  
Renewable Energy ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Renewable Energy Sources ◽  
Electrical Energy ◽  
Community Level ◽  
Energy Sources ◽  
Gas Emissions ◽  
Increase Energy Efficiency

Electrical energy and demand is constantly increasing disproportionately. Therefore, taken at Community level long-term programs such as the Europe 2020 strategy, which is primarily focused on the energy sector. Its priorities include reducing greenhouse gas emissions, increase energy efficiency through the development and introduction of innovative technologies and increasing the share of renewable energy sources (RES) at Community level. The issue of implementation of energy from renewable sources in addition to the existing EU environmental strategies key area where attention is focused policy. Therefore, we can expect a significant inflow of funds into the development of these strategic concepts. Improving the energy efficiency is one of the key strategic approaches, contributing to the achievement of greenhouse gas emissions in Community.

scholarly journals DETERMINATION OF REDUCING GREENHOUSE GAS EMISSIONS BY MEANS OF RENEWABLE ENERGY SOURCES APPLICATION

2010 ◽  
Vol 5 (1) ◽  
Author(s):  
О. Косинчук ◽  
Г. Кондратюк ◽  
Н. Козлова ◽  
Є. Новицька
Keyword(s):  
Renewable Energy ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Gas Emissions

scholarly journals Strategies for Energy and Climate Management at the British Columbia Institute of Technology

2021 ◽  
Vol 1 ◽  
Author(s):  
Jennie Moore
Keyword(s):  
British Columbia ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Energy Use ◽  
Waste Heat ◽  
Net Energy ◽  
Full Time ◽  
Gas Emissions ◽  
Service Levels ◽  
Institute Of Technology

The British Columbia Institute of Technology (BCIT) is Canada's premier polytechnic. In 2008, BCIT partnered with its local electricity utility to hire a full-time energy manager. The following year, BCIT's School of Construction and the Environment initiated a campus-as-living-lab of sustainability project called Factor Four in the seven buildings it occupies on BCIT's main campus in Burnaby. The purpose was to explore whether a four-fold (75%) reduction in materials and energy use could be achieved without compromising service levels. By 2016, the project achieved a 50% reduction in energy use and associated greenhouse gas emissions. Factor Four attracted over four million dollars in funding, engaged over 250 students from 12 educational programs, and produced over $200,000 savings annually. In 2017, BCIT set an ambitious target to reduce its annual greenhouse gas emissions 33% below 2007 levels by 2023, and 80% by 2050, across all five of its campuses. BCIT’s ultimate goal is to become both greenhouse gas neutral and a net energy producer. By setting ambitious targets and systematically implementing energy efficiency improvements, utilizing waste-heat exchange, fuel switching, and developing on-site renewable energy, BCIT is on track to achieving its energy management and climate change goals.

scholarly journals Cutting Oxygen Production-Related Greenhouse Gas Emissions by Improved Compression Heat Management in a Cryogenic Air Separation Unit

2021 ◽  
Vol 18 (19) ◽  
pp. 10370
Author(s):  
Miroslav Variny ◽  
Dominika Jediná ◽  
Miroslav Rimár ◽  
Ján Kizek ◽  
Marianna Kšiňanová
Keyword(s):  
Power Consumption ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Ambient Air ◽  
Air Separation ◽  
Oxygen Production ◽  
Gas Emissions ◽  
Separation Unit ◽  
Air Separation Unit ◽  
Air Dryer

Oxygen production in cryogenic air separation units is related to a significant carbon footprint and its supply in the medicinal sphere became critical during the recent COVID-19 crisis. An improved unit design was proposed, utilizing a part of waste heat produced during air pre-cooling and intercooling via absorption coolers, to reduce power consumption. Variable ambient air humidity impact on compressed air dryers’ regeneration was also considered. A steady-state process simulation of a model 500 t h−1 inlet cryogenic air separation unit was performed in Aspen Plus® V11. Comparison of a model without and with absorption coolers yielded an achievable reduction in power consumption for air compression and air dryer regeneration by 6 to 9% (23 to 33 GWh year−1) and a favorable simple payback period of 4 to 10 years, both depending on air pressure loss in additional heat exchangers to be installed. The resulting specific oxygen production decrease amounted to EUR 2–4.2 t−1. Emissions of major gaseous pollutants from power production were both calculated by an in-house developed thermal power plant model and adopted from literature. A power consumption cut was translated into the following annual greenhouse gas emission reduction: CO2 16 to 30 kilotons, CO 0.3 to 2.3 tons, SOx 4.7 to 187 tons and NOx 11 to 56 tons, depending on applied fossil fuel-based emission factors. Considering a more renewable energy sources-containing energy mix, annual greenhouse gas emissions decreased by 50 to over 80%, varying for individual pollutants.

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