scholarly journals Integration of Solar Chimney Power Plant with Photovoltaic for Co-Cooling, Power Production, and Water Desalination

Processes ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 2155
Author(s):  
Malek Alkasrawi ◽  
Emad Abdelsalam ◽  
Hamza Alnawafah ◽  
Fares Almomani ◽  
Muhammad Tawalbeh ◽  
...  

This work explores the technical possibilities of increasing the efficiency of a standard solar chimney power plant (SCPP) by integrating it with photovoltaic (PV) panels. The integration is possible by using the collector circumference to install the PV collectors, which provide a heat sink, allow for the better harvesting of the solar radiation, and increase energy production. The new design led to an increase in the annual electricity production from 380 to 494 MWh and water production from 278 to 326 k tons/year compared with the standard SCPP, marking an increase of 30% and 17%, respectively. The results also show that the integration reduced the greenhouse gas emissions (GHG), the localized cost of energy, and the capital cost of investment by 30%, 36%, and 20%, respectively. The proposed design supports the sustainable replacement of the existing desalination plants with zero operational costs and an excellent reduction in greenhouse gas emissions.

Author(s):  
Nguyen Quang Thai ◽  

Electricity is an essential element for the production and the consumption in any economy. Electricity can be generated by thermoelectricity, hydroelectricity, nuclear power, solar power and wind power, etc.Each method of electricity production can make the level of greenhouse gas emissions of the economy differently. This study adopted Input - Output analysis method to examine the electricity requirments and greenhouse gas emissions in the Vietnamese economy.


2011 ◽  
Vol 5 ◽  
pp. 77-80 ◽  
Author(s):  
Q. Yang ◽  
G.Q. Chen ◽  
Y.H. Zhao ◽  
B. Chen ◽  
Z. Li ◽  
...  

Energies ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7731
Author(s):  
Stefan N. Petrović ◽  
Oleksandr Diachuk ◽  
Roman Podolets ◽  
Andrii Semeniuk ◽  
Fabian Bühler ◽  
...  

This study analyses the Ukrainian energy system in the context of the Paris Agreement and the need for the world to limit global warming to 1.5 °C. Despite ~84% of greenhouse gas emissions in Ukraine being energy- and process-related, there is very limited academic literature analysing long-term development of the Ukrainian energy system. This study utilises the TIMES-Ukraine model of the whole Ukrainian energy system to address this knowledge gap and to analyse how the energy system may develop until 2050, taking into current and future policies. The results show the development of the Ukrainian energy system based on energy efficiency improvements, electrification and renewable energy. The share of renewables in electricity production is predicted to reach between 45% and 57% in 2050 in the main scenarios with moderate emission reduction ambitions and ~80% in the ambitious alternative scenarios. The cost-optimal solution includes reduction of space heating demand in buildings by 20% in frozen policy and 70% in other scenarios, while electrification of industries leads to reductions in energy intensity of 26–36% in all scenarios except frozen policy. Energy efficiency improvements and emission reductions in the transport sector are achieved through increased use of electricity from 2020 in all scenarios except frozen policy, reaching 40–51% in 2050. The stated policies present a cost-efficient alternative for keeping Ukraine’s greenhouse gas emissions at today’s level.


Energies ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5260
Author(s):  
Christoph Kern ◽  
Andreas Jess

A model is presented which covers the global greenhouse gas emissions (GHG emissions) and the energy consumption (fuels, electricity) in five sectors of end users, industry, transport, buildings, agriculture, and fugitive emissions. The electricity sector is also considered, but the associated GHG emissions are reallocated to the five end users. Different GHG reduction measures were calculated ranging from substitution of coal for electricity generation by renewables, electrification of road transport and buildings, restructuring of the sector industry to finally a 50% reduction of both food waste and meat consumption. To elucidate the consequences of global warming, future emission scenarios were also incorporated. One major conclusion is that the world can only reach the 2-degree climate target if electricity is only produced by renewables, and if transportation, buildings, and the industry are completely electrified by 2050. Compared to today, the electricity production by renewables will then rise by a factor of 11, and the total electricity demand by a factor of 2.4.


2014 ◽  
Vol 962-965 ◽  
pp. 1437-1443
Author(s):  
Hui Qin Dong ◽  
Hong Lin ◽  
Chao Huang ◽  
Ji Sun

This paper intends to improve the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) method in view of the traditional TOPSIS method and combines with the current development of Chinese enterprises. By determining the index weights and attributes, it also constructs a new enterprise decision-making method which based on energy saving and greenhouse gas emissions. According to the survey's raw data, this paper not only calculates the energy levels of conventional coal-fired power plant in North China and an integrated gasification gas-steam combined cycle (IGCC) power plant, but also computes their carbon dioxide emissions. The results show that under the same circumstances, the energy consumption of IGCC power plant is lower than that of the conventional coal-fired power plants, has less carbon dioxide emissions, lower carbon intensity and higher carbon productivity. On the basis, using the improved TOPSIS method, the paper calculates the numerical superiority of two schemes and sorts of them, verified the correctness of this construction method.


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