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According to the recommended reading Life Cycle Analysis of Distributed Energy System Projects’Energy Consumption and GHG Emission – A Case of Beer Brewery Auxiliary Power Supply in China.

It is evident in the mentioned reading the analysis of the life cycle of a product, in this specific case we study the life cycle of energy consumption and GHG emissions, in the case of a brewery in China.

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it consists of evaluating each of the environmental effects generated throughout the life of the product, that is, from the sources of primary resources), to the consumption and final disposition, allowing to identify the impacts on the different environmental compartments beyond the limits of the productive plant.

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The projects in China are complete and a model to follow since their processes are dynamic and futuristic, generating changes in style in terms of implementation of distributed energy systems based on natural gas, implementing notable improvements at an economic and environmental level.

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The life of a product begins in the design and development of the product and ends at the end of life of the activities
through the following stages:
-Acquisition of raw materials
-Process and manufacturing
-Distribution and transportation
-Use, reuse and maintenance
-Recycling

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is the analysis of the results as well as the explanation of the
meaning and restrictions based on the results of inventory analysis and impact assessment

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The impact categories describe the potential effects on man and the environment.

• Global warming (GWP)
• Ozone depletion (stratospheric) (ODP)
• Photochemical creation of ozone (tropospheric) (POCP)
• Acidification (AP)
• Eutrophication (NP)
• Toxicity to man (HTP)
• Ecotoxicity (ETP)
• Land use

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The function of the impact assessment is the evaluation of the material and energy flows prepared in the inventory analysis according to certain environmental effects.

In this way, the impact assessment serves to:

•recognize,
•summarize
•quantify the environmental  effects

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FIRST OF ALL:

the cut-off criteria and the location of the procedures for the individual procedures considered in the balance sheet must be defined.

SECOND OF ALL:
the functions of the systems examined as well as the functional units must be determined and the differences and possible restrictions of the systems to be compared must be documented.

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It is set to DIN / ISO 14040 standards. In accordance with these standards, the LCA is divided into four parts:

Definition of the objective and breadth

- Inventory analysis
- Impact evaluation
- Interpretation
-Therefore, these four parts are discussed in detail

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In its current form, LCA is an environmental management tool and less polluting process design.

It has been incorporated into the development of ecolabelling systems, in the formulation of guidelines for the development of environmentally friendly products and in the
ISO standards

 ISO 14040:
presents the general principles and methodological requirements of the LCA of products and services.

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ACL METHOD- DESCRIPTION

is a standard method that allows comprehensive collection, quantification and evaluation of environmental damages related to a product, a procedure.

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This analysis helps us to evaluate the energy consumption and GHG emission of the Distributed Energy System projects, emphasizing renewable energy projects, having a great potential for future development.