THE CARBON FOOTPRINT OF A BIOGAS POWER PLANT

2014 ◽  
Vol 13 (11) ◽  
pp. 2867-2874 ◽  
Author(s):  
Gyorgy Szabo ◽  
Istvan Fazekas ◽  
Szilard Szabo ◽  
Gergely Szabo ◽  
Tamas Buday ◽  
...  
Keyword(s):  
2009 ◽  
Vol 131 (01) ◽  
pp. 22-27 ◽  
Author(s):  
Alan S. Brown

This review focuses on the fact that there are many ways to be green, and American manufacturers are trying them all. From reducing energy use and recycling water to implementing ISO 14001 sustainability programs and reusing packaging, US factories are embracing a more environmentally sensitive manufacturing ethos as fast as they can. There are many ways to be green. Ratcheting down energy use, for example, automatically reduces a plant’s carbon footprint, because either it burns less natural gas or it buys less electricity from a power plant that burns coal or gas. Companies around the nation have also turned their Six Sigma, lean manufacturing, and other tools on solid waste. If a material does not add value to a product, they eliminate it. Many work with vendors to reduce packaging. The less packaging, the less energy is used in a product. Capital projects are even harder to push through, yet they are necessary for further gains once companies have plucked waste reduction’s low-hanging fruit.


Author(s):  
Marlon Caires Pamponet ◽  
Henrique Leonardo Maranduba ◽  
José Adolfo Almeida Neto ◽  
Luciano Brito Rodrigues

2020 ◽  
Vol 142 (07) ◽  
pp. 40-45
Author(s):  
Hogan Hank

Abstract The current commercial hydrogen production has a significant carbon footprint. Now, projects co-funded by the U.S. Department of Energy and commercial nuclear utilities with operating nuclear power facilities aim to change that by exploiting the capabilities of nuclear power plants. This article delves into four projects aimed at demonstrating technology to make hydrogen from water on an industrial scale using energy from an operating commercial nuclear power plant.


2019 ◽  
Vol 1 (1) ◽  
pp. 325-340 ◽  
Author(s):  
Dan Fernandes ◽  
Song Wang ◽  
Qiang Xu ◽  
Russel Buss ◽  
Daniel Chen

The Allam cycle is the latest advancement in power generation technologies with a high cycle efficiency, zero NOx emission, and carbon dioxide available at pipeline specification for sequestration and utilization. The Allam cycle plant is a semi-closed, direct-fired, oxy-fuel Brayton cycle that uses high pressure supercritical carbon dioxide as a working fluid with sophisticated heat recuperation. This paper conducted process analyses including exergy analysis, sensitivity analysis, air separation unit (ASU) oxygen pump/compressor option analysis, and carbon footprint analysis for the integrated Allam power plant (natural gas)/ASU complex with a high degree of heat and work integration. Earlier works on exergy analysis were done on the Allam cycle and ASU independently. Exergy analysis on the integrated plants helps identify the equipment with the largest loss of thermodynamic efficiency. Sensitivity analysis investigated the effects of important ASU operational parameters along with equipment constraint limits on the downstream Allam cycle. Energy efficiency and carbon footprint are compared among the state-of-the-art fossil-fuel power generation cycles.


2013 ◽  
Vol 807-809 ◽  
pp. 814-821 ◽  
Author(s):  
Lan Lan Lou ◽  
Hai Lin Mu ◽  
Xin Chen ◽  
Hua Nan Li

Thermal power plant is the main CO2 emission source in China. This paper discusses the carbon footprint of a thermal power plant in Liaoning province of China based on LCA (Life Cycle Assessment. The reviewed thermal power plants total carbon footprint is about 6.52 million tons, of which 90.23% are from fuel combustion. The onsite emission is 5.91 million tons which depends on the power plants technology level and energy efficiency. In order to alleviate carbon emissions at the power enterprise level, an integrated effort should be taken, including the optimization of energy structures, improvement of energy efficiency and technology level. Recommendations for thermal power plant management are that companies should make full use of geographical advantages and adopt high-quality fuels actively.


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