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Milena Urbano/ Environmental management for sustainable development .

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Milena Urbano/ Environmental management for sustainable development .

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Its objective is to achieve an adequate balance for economic development, the conservation of the environment, the rational use of resources and the growth of the population.
LIFE CYCLE ANALYSIS (LCA)
It can be identified as the methodological framework used to estimate and evaluate the environmental impacts that are attributed to a product or service during all stages of its life, it is important to recognize that all activities or processes cause the environment:
Resource consumption
Emission of substances
Generation of environmental changes during his life.
These impacts influence:
Climate change, reduction of the ozone layer, generation of ozone, acidification, which in turn negatively affects the environment.

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Importance of projects
The projects in China are characterized by being interesting, unique and also by having the support of the government, which works together with researchers to promote distributed energy projects. In this document, researchers seek to analyze the energy consumption during the life cycle and the emission of GHG from multiple types of projects of distributed energy systems with different energy supply routes.
To obtain the energy consumption of the life cycle and the emission of GHG, the following steps must be carried out:
Step 1: Convert the output to power input
Step 2: Use the energy input to calculate life cycle energy and GHG emissions
Step 3: Calculate the energy savings and the emission reduction rate.

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Overall review of distributed energy development in China: Status quo, barriers and solutions

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As a good power supplement form of super power and large-scale energy base, distributed energy has the characteristics of less investment and flexible...

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Solandria González/                       

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Solandria González/                       

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a) Phase of definition of the objective and scope
In this paper, relate an analysis life cycle energy consumption and GHG emission of multiple types of Distributed Energy System projects with different energy supply pathways.
With output (electricity, heat and cooling) held constant, the fuel energy consumption is calculated given efficiency factors, and then life cycle energy consumption and GHG emission can be derived using LCA.

Case Design

They designed 6 cases to better capture the potential development of Distributed Energy System
projects as Table 1 shows. Case 1 (All NG) is the base case. China Resources Snow Breweries Distributed Energy System project operated in this model. They
compared All NG case to traditional coal fired projects with electricity bought from the grid or generated by private owned power plants. They also investigated the efficiency of renewable technology by comparing several cases with renewable energy and the case with electricity bought from the grid. Considering the location of the project where wind and solar power is relatively scarce and vine lees is easy to get.

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Lennys  Caicedo/ b)Inventory analysis phase

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Lennys  Caicedo/ b)Inventory analysis phase

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Some of the data used in this case were the following:
IPCC data to calculate the calorific value of natural gas (8900 Kcal / M 3), and other data used in stage 1 of input conversion as presented in Table 2.

The acquired data and In case 4 and 5, it was assumed that the energy of the biomass is modeled how much can be used in the Distributed Energy System Project. In case 4, the electric energy provided by solar energy was calculated, in addition to the network. In case 5 the project ensures that the biomass energy can cover the electricity demand and the cooling load.

In addition, the energy consumption of the life cycle and the emission of greenhouse gases from the multiple types of projects of the distributed energy system with different energy supply routes were analyzed, such as:

With the production (electricity, heat and cooling) they remain constant, the energy consumption of the fuel is calculated according to the efficiency factors, and then the energy consumption of the life cycle and the emission of greenhouse gases can be derived using the ACV results from the previous literature.

In addition, energy consumption of the life cycle and energy consumption are derived from GHG emissions through 3 steps that are detailed in the research method.

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Jorge Quintana/                               c) Phase of evaluation of the environmental impact

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Jorge Quintana/                               c) Phase of evaluation of the environmental impact

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In the base case gas based Distributed Energy System proyect has desirable perfomance in enviromental value. When compared with traditional project, gas based reduces energy consumption and GHG emission significantly (8% and 38% respectively). Compared with case when electricity is bought from the grid, it has even greater advantage. Renewable energy has the potential to develop in the future. Constrained by solar resources in Sichuan province, solar based Distributed Energy System project has positive but limited effect in energy saving and emission reduction.

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d. Interpretation phase

The project we researched has outstanding performance in energy saving and emission reduction. Comparing the case using coal and grid electricity, gas based Distributed Energy System project saves 8% energy and reduced GHG emission by 38% in a Life Cycle Analysis view.
Renewable energy technology provides alternatives to reduce GHG emission. Due to the environment of the project site, solar energy can hardly improve the performance. However, it’s possible to utilize biomass (byproduct of beer production) or wind power in the distant to improve the system.

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Hansi, L., Xiongwen, Z., & Xunmin, O. (2017). Life Cycle Analysis of Distributed Energy System Projects’ Energy Consumption and GHG Emission – A Case of Beer Brewery Auxiliary Power Supply in China. Energy Procedia, 105, 3456–3463. Recuperado de https://www.sciencedirect.com/science/article/pii/S1876610217308597

ECO Inteligencia. (2013). El Análisis del Ciclo de Vida. ecointeligencia licencia de acuerdo a Creative Commons. Recuperado de http://www.ecointeligencia.com/2013/02/analisis-ciclo-vida-acv/