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5. Energy Efficient Built Environment

This chapter discusses the importance of energy-efficient building practices and the application of Life Cycle Assessment (LCA) in architectural design. It emphasizes how material selection, embodied energy, and carbon play critical roles in reducing environmental impact throughout a building's life cycle. Furthermore, the chapter covers various green building certification systems like LEED and GRIHA, outlining their significance in promoting sustainability in construction.

Sections

Energy Efficient Built Environment

An energy efficient building minimizes energy use and incorporates renewable energy sources, focusing on sustainability through life cycle assessments of materials and operation.

5.1.3 Section Overview

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5.1.3.1 Life Cycle Assessment for Building and its materials

Life Cycle Assessment (LCA) evaluates the environmental impact, cost, and energy use of buildings and materials through their life cycle.

5.1.3.2 Embodied Energy and Embodied Carbon

This section discusses the impact of material selection on the embodied energy and carbon of buildings, emphasizing the importance of Life Cycle Assessment (LCA) in creating energy-efficient designs.

5.1.3.2.1 Design strategies for reduction of embodied energy and embodied carbon

This section outlines strategies for reducing embodied energy and carbon in building design through material selection and optimization techniques.

5.1.3.2.1.1 Reduction of amount of needed materials throughout entire life cycle

This section discusses strategies to reduce material usage in building lifecycle to promote energy efficiency and sustainability.

5.1.3.2.1.1.1 Optimization of Layout Plan

This section discusses the importance and strategies for optimizing layout plans in energy-efficient building design.

5.1.3.2.1.1.2 Optimization of structural system

The section focuses on optimizing structural systems in energy-efficient building designs, emphasizing the selection of materials and design strategies that significantly reduce embodied energy and environmental impact.

5.1.3.2.1.1.3 Low-maintenance design

Low-maintenance design focuses on creating buildings and products that require minimal upkeep, thereby enhancing both sustainability and cost-effectiveness.

5.1.3.2.1.1.4 Flexible and adaptable design

Flexible and adaptable design in architecture focuses on material selection to enhance energy efficiency and environmental impact throughout a building's lifecycle.

5.1.3.2.1.1.5 Components’ service life optimization

This section discusses the relevance of optimizing the service life of building components to enhance energy efficiency and minimize environmental impacts in construction.

5.1.3.2.1.2 Substitution of traditional materials for alternatives with lower environmental impacts

This section discusses the importance of substituting traditional construction materials with environmentally friendly alternatives to reduce embodied energy and carbon emissions in buildings.

5.1.3.2.1.2.1 Reuse of building parts and elements

This section discusses the significance of reusing building materials and elements to promote energy efficiency and sustainable practices in the built environment.

5.1.3.2.1.2.2 Utilization of recycled materials

This section discusses the importance and methods of utilizing recycled materials in construction to promote sustainability.

5.1.3.2.1.2.3 Substitution for bio-based and raw materials

This section emphasizes the essential role of substituting traditional materials with bio-based and raw materials in enhancing sustainability within building construction.

5.1.3.2.1.2.5 Design for deconstruction

Designing buildings for deconstruction allows for easier recycling and reuse of materials, thereby minimizing environmental impact.

5.1.3.2.1.2.4 Use of innovative materials with lower environmental impacts

This section discusses the importance of selecting innovative materials in civil engineering that contribute to a lower environmental footprint throughout a building's life cycle.

5.1.3.2.1.2.6 Use of Recyclable Materials

The section discusses the importance and methods of incorporating recyclable materials in building design and construction to minimize environmental impacts.

5.1.3.2.1.3 Reduction of construction stage impact

This section discusses strategies to minimize environmental impacts during the construction phase of building projects.

LEED Rating

LEED (Leadership in Energy and Environmental Design) is a comprehensive green building rating system aimed at promoting sustainable building practices and enhancing environmental performance.

5.1.4 Section Overview

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5.1.4.1 Certification types and Credit scoring

This section details the various types of LEED certifications and the credit scoring system used to evaluate sustainable building practices.

5.1.4.1.1 LEED Building Design and Construction (BD+C)

This section outlines the importance of LEED (Leadership in Energy and Environmental Design) in promoting sustainable building practices, particularly in building design and construction.

5.1.4.1.2 LEED Interior Design and Construction (ID+C)

This section outlines the principles and importance of LEED Interior Design and Construction (ID+C) in promoting sustainable practices within interior spaces.

5.1.4.1.3 LEED Building Operations and Maintenance (O+M)

This section discusses the significance of the LEED Building Operations and Maintenance (O+M) certification for existing buildings, emphasizing sustainable practices and energy efficiency in building management.

5.1.4.1.4 LEED Neighbourhood Development (ND)

This section outlines the significance of LEED Neighbourhood Development as part of green building practices and its role in sustainable urban planning.

5.1.4.1.5 LEED Homes

LEED Homes focuses on the certification of residential buildings that meet environmentally sustainable design standards as part of the broader LEED (Leadership in Energy and Environmental Design) framework.

5.1.4.1.6 LEED Cities

LEED Cities focuses on sustainable urban development by measuring and managing cities' resource consumption and human experiences.

5.1.4.2 LEED Credits and categories

This section outlines the LEED (Leadership in Energy and Environmental Design) framework, its certification types, and the various categories and credits involved in promoting sustainability in building projects.

5.1.4.2.1 Energy and Atmosphere

This section discusses the importance of energy-efficient building designs and the concept of Life Cycle Assessment in improving sustainability in civil engineering.

5.1.4.2.2 Location and Transportation

This section discusses the importance of location and transportation in sustainable building practices, with an emphasis on the LEED rating system's criteria for efficient land use and accessibility.

5.1.4.2.3 Materials and Resources

This section discusses the significance of material selection in energy-efficient building design and its environmental impacts.

5.1.4.2.4 Sustainable Sites

Sustainable sites focus on energy efficiency and environmentally-friendly decisions in building design and construction, emphasizing the significant role of material selection and lifecycle assessment.

5.1.4.2.5 Water efficiency

This section emphasizes the importance of water efficiency in sustainable building practices.

5.1.4.2.6 Innovation

This section focuses on the innovative strategies and practices in civil engineering to enhance sustainability and efficiency in building design and construction.

5.1.4.2.7 Regional Priority Credits

Regional Priority Credits encourage sustainable building practices tailored to regional environmental priorities.

5.1.4.2.8 Integrative Process

This section discusses the integrative process in civil engineering that emphasizes energy efficiency in building design.

Other Green Building Certifications in India

This section discusses the alternative green building certification systems in India, primarily focusing on GRIHA and the Energy Performance Index (EPI) by BEE.

6 Section Overview

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6.1 GRIHA

GRIHA is India's green building rating system that emphasizes environmental sustainability throughout all phases of building design, construction, and operation.

6.1.1 Building planning and construction stages

This section discusses the importance of planning and construction stages in building design, emphasizing energy efficiency and sustainable practices.

6.1.2 Building operation and maintenance stage

The building operation and maintenance stage focuses on the importance of energy efficiency, life cycle assessments, and sustainable practices in the operation of buildings.

Learning Objectives

  • Energy-efficient buildings minimize energy consumption while maximizing conservation.

  • Life Cycle Assessment aids in selecting environmentally friendly products and optimizing construction processes.

  • Embodied energy and carbon are essential in evaluating the environmental impact of building materials.

Key Concepts

Energy Efficient Building

A building that provides a conducive environment for habitation while minimizing energy consumption through optimized design and equipment.

Life Cycle Assessment (LCA)

A method for evaluating the environmental impacts associated with all stages of a product's life, from material extraction to disposal.

Embodied Energy

The total energy consumed in the production of a building material, encompassing extraction, transportation, and manufacturing.

LEED Certification

A green building rating system that recognizes best-in-class building strategies and practices, promoting sustainability and energy efficiency.

GRIHA

A national rating system for green buildings in India, reflecting sustainability and assessing the environmental, economic, and social aspects.

Practice Exercises

Total Questions

2

Estimated Time

4 min

Passing Score

70%

Instructions

  • Read each question carefully
  • You can use hints if you need help
  • Complete all questions before submitting
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