Energy Efficiency Research in Building Based on the Concept of Life Cycle

2012 ◽  
Vol 253-255 ◽  
pp. 731-734
Author(s):  
Lin Lin Sun ◽  
Chun An You ◽  
Jian Xin Liu ◽  
Ling Zhi Sun
Keyword(s):  
Energy Efficiency ◽  
Life Cycle ◽  
Energy Saving ◽  
Cost Estimation ◽  
Life Cycle Cost ◽  
Estimation Model ◽  
Important Conclusion ◽  
Cost Estimation Model ◽  
Definition Of ◽  
Whole Life Cycle

Saving energy is one of the basic national policies, and energy efficiency in building is the important part of energy conservation work. It is of great significance to develop this work permanently. Discusses the definition of energy efficiency in building, introduces the concept of the life cycle, and sets up the life cycle cost estimation model. Through the analysis of energy saving building, comes to an important conclusion. Although the initial investment of energy saving building increases, the whole life cycle cost is obviously lower than general building. With the increasing of the discount rate and the extension of life cycle, the effect is more outstanding.

Cost Estimation of Product Life Cycle

2011 ◽  
Vol 421 ◽  
pp. 582-585
Author(s):  
Zi Qin Ma ◽  
Ting Ting Xu ◽  
Li Sun ◽  
Xiu Lun Wang ◽  
Jian Min Fan ◽  
...  
Keyword(s):  
Life Cycle ◽  
Cost Estimation ◽  
Life Cycle Cost ◽  
Product Life Cycle ◽  
Present Value ◽  
Estimation Model ◽  
Product Life ◽  
Target Cost ◽  
Cost Estimation Model ◽  
The One

The cost estimation of the product life cycle was researched. On the one side, the life cycle cost present value for manufacturer was estimated, including mainly of target cost, service cost and fault compensation. And a life cycle cost estimation model for manufacturer, which combines target cost and proportion cost estimated, was proposed. On the other side, the life cycle cost present value for user was estimated, including mainly of purchase, installation, commissioning costs in beginning and labor, maintenance, depreciation, maintenance costs in operations. And another life cycle cost estimation model for user, which combines process cost and proportion cost estimated, was proposed.

Research on the Highway Engineering LCC Estimation Modular Platform

2014 ◽  
Vol 584-586 ◽  
pp. 2554-2558
Author(s):  
Wei Yi He ◽  
Xiao Jie Xu ◽  
Xi Zhen Gao ◽  
Zhuo Wei Li ◽  
Ke Li
Keyword(s):  
Life Cycle ◽  
Engineering Design ◽  
Conceptual Model ◽  
Cost Estimation ◽  
Life Cycle Cost ◽  
Difficult Problem ◽  
Estimation Model ◽  
Highway Engineering ◽  
Modular Platform ◽  
Cost Estimation Model

The highway engineering is an important area for investment in infrastructure construction in China, in the stage of engineering design, to solve the difficult problem of life cycle cost estimates, the paper builds the highway engineering life-cycle cost estimation modular conceptual model, and develops the highway engineering LCC estimation modular platform under the model. It provides a practical way for the highway life cycle cost measuring, and presents a new idea for life cycle cost estimation model.

A quality-based cost estimation model for the product line life cycle

2006 ◽  
Vol 49 (12) ◽  
pp. 85-88 ◽  
Author(s):  
Hoh Peter In ◽  
Jongmoon Baik ◽  
Sangsoo Kim ◽  
Ye Yang ◽  
Barry Boehm
Keyword(s):  
Life Cycle ◽  
Cost Estimation ◽  
Product Line ◽  
Estimation Model ◽  
Line Life ◽  
Cost Estimation Model

Research of Cost Estimation of Energy-Saving Buildings Based on the Full Lifecycle Theory

2013 ◽  
Vol 357-360 ◽  
pp. 2454-2459
Author(s):  
Hui Ling Li ◽  
Hang Tian Liu ◽  
Xiao Qin Li
Keyword(s):  
Life Cycle ◽  
Energy Saving ◽  
Cost Estimation ◽  
Life Cycle Cost ◽  
Capital Investment ◽  
Analytical Tool ◽  
Social Benefits ◽  
Full Life Cycle ◽  
Cost Of Energy ◽  
Full Life

This paper first selects the theory of full lifecycle cost as the entry point and analyses the composition of full lifecycle cost of energy-saving buildings. Then it clarifies that the full lifecycle cost estimation of energy-saving buildings is an analytical tool in capital investment and a way to minimize the full lifecycle cost of energy-saving buildings. We also construct the concept and steps of cost estimation and build two mathematical models of full lifecycle cost estimation under two different application conditions; Finally, this paper illustrates the economic and social benefits brought by full life cycle cost estimation of energy-saving buildings through the case studies.

Review on Methodology for Life Cycle Costing of Membrane System for Wastewater Filtration

2013 ◽  
Vol 845 ◽  
pp. 713-719
Author(s):  
Nur Syamimi Jiran ◽  
Salwa Mahmood ◽  
Muhamad Zameri Mat Saman ◽  
Mohd Yusof Noordin
Keyword(s):  
Life Cycle ◽  
Cost Estimation ◽  
Membrane System ◽  
Research Direction ◽  
Life Cycle Costing ◽  
Estimation Model ◽  
Wastewater Filtration ◽  
Innovative Solution ◽  
Manufacturing Assembly ◽  
Cost Estimation Model

In competitive environment, manufacturers have to come out with innovative solution to market their product including by implementing life cycle engineering concept. Life cycle costing (LCC) is one of the aspects that need to be considered when adapting this concept. In addition, costing is one of the important aspects that need to consider carefully. In order to perform LCC analysis, one of the important steps is estimating costs. Cost estimation model should not only consider pre production and production cost design, manufacturing, assembly but also post production customer use and end of life. Development of cost estimation model or methodology is needed to simplify the LCC analysis so that it able to produce result in short time and more accurate. This paper has review on LCC, cost estimation techniques and several developed cost estimation model in order to determine research gap and research direction on developing a methodology to assessing LCC of membrane system for wastewater filtration.

The Issues of Energy Efficiency of Buildings for Agricultural Purposes

2018 ◽  
Vol 931 ◽  
pp. 436-442 ◽  
Author(s):  
Sergey V. Fedosov ◽  
Vadim N. Fedoseev ◽  
Ludmila A. Oparina
Keyword(s):  
Energy Efficiency ◽  
Life Cycle ◽  
Service Life ◽  
Energy Saving ◽  
Life Cycle Cost ◽  
Import Substitution ◽  
High Energy ◽  
Vegetable Production ◽  
Human Environment ◽  
The Cost

The current problem of ensuring energy saving and improving the energy efficiency of buildings and structures for agricultural purposes is identified. The geopolitical situation, import substitution programs and agricultural development programs set the task of developing domestic vegetable production, which in its turn requires the construction of new vegetable store buildings, as in most regions of Russia the harvest is collected once a year. In this regard, the current task is to ensure the energy conservation and achieve high energy efficiency of the vegetable store buildings. Energy saving is the basic technology for creating effective agriculture. The purpose of the study is to analyse the requirements for insulation materials for buildings and vegetable store facilities, taking into account energy efficiency and life cycle cost. The authors analysed the criteria for choosing a heater for the vegetable stores: low coefficient of thermal conductivity, water absorption, sorption humidity, frost resistance, biostability, lack of cold bridges, long service life. It is proposed to supplement the criteria for choosing a building insulation with the characteristics of the life cycle cost and the service life. Design and construction of agricultural buildings is proposed to be implemented using the concepts of BLC and BIM, the use of which gives an opportunity to design buildings with optimal energy efficiency parameters and take into account the cost of the life cycle. The cost of the buildings life cycle is the main of all the performance indicators when comparing alternative design options that differ by the application of advanced technologies and material resources and the contractors' offers when concluding contracts not only for purchase, but for servicing the subject of trades during its service life. The conclusions are made about the advantages of using foamed polyethylene foam for warming vegetable store buildings, as well as the conclusion about the expediency of adding criteria determining the sustainable development of the human environment, namely life cycle cost, service life, recycling ability. The formula for calculating the cost of the buildings life cycle, adapted to the specificity of buildings for agricultural purposes, is given.

scholarly journals Improving competitiveness through the application of cost estimation models

2021 ◽  
Author(s):  
◽  
Prianca Naicker
Keyword(s):  
Life Cycle ◽  
Cost Estimation ◽  
Estimation Model ◽  
Project Life Cycle ◽  
Parametric Cost Estimation ◽  
Cost Estimation Model ◽  
Project Life ◽  
Estimation Models ◽  
Cost Estimation Models

Optimal costing decisions are required in order to ensure that organisations are globally competitive. The case study company is a global affiliate based in Durban, KwaZulu-Natal, South Africa and is involved in the manufacture and assembly of automobiles and automotive components. It was noticed that cost estimation models were only introduced at an advanced stage in the project life cycle. The concept of cost estimation and its application to improve various factors of a business has been investigated previously and existing evidence could be utilised to support further study in the field. Therefore, the aim of the study was to improve the quality of sourcing decisions by means of the introduction of a parametric cost estimation model and business process re-engineering. A case study approach was adopted. The first objective was to develop an overview of the current sourcing processes and understand the factors which influenced sourcing decisions. The methods used included the generation of a Standard Operating Procedure (SOP) for the current sourcing process, an online survey and interviews. It was concluded that there was a need to develop a detailed SOP which identified and included all impacted departments. The second objective was to redesign the sourcing process. It was concluded that the current sourcing processes did not take cost estimates into account at the early stages of the project life cycle and the inability to accurately predict costs consequently negatively impacted the cost competitiveness of the organisation. The third objective was to develop and implement a parametric cost estimation model. The model was created using Microsoft Excel. The results revealed that the Parametric Cost Estimation Model (PCEM) needed to focus on small injection moulded components as they were the highest contributor to the high Cost Index Manufacturing (CIM), which made the organisation globally uncompetitive. The results revealed that with the introduction of the PCEM and the revised sourcing process, the selected component was competitively priced.Recommendations were made for continuous process improvement and a roadmap for the further introduction of cost estimation models. Further research could also be conducted to develop an optimal cost estimation model based on analogous costing techniques or to develop a comprehensive database for other complex commodities.

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