Building Energy Simulation: A Workbook Using DesignBuilder™, 2nd Edition (Paperback) book cover

Building Energy Simulation

A Workbook Using DesignBuilder™, 2nd Edition

By Vishal Garg, Jyotirmay Mathur, Aviruch Bhatia

CRC Press

544 pages | 972 B/W Illus.

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Description

The 2nd edition of the Building Energy Simulation book include study of various components and systems of a building and their effect on energy consumption, with the help of an energy simulation tool, DesignBuilderTM, a commercial front-end for EnergyPlus simulation engine, supported by numerous examples and exercises. Following a “learning by doing” methodology, it explains simulation input parameters, along with how to do analysis of the simulation output explaining the basics of building physics and energy simulation. Divided into three sections, the first section provides fundamentals of energy simulation followed by advanced topics in energy simulation and simulation for compliance of building codes and detailed case studies for whole building energy simulation. Aimed at students and researchers in building energy courses, energy simulation professionals, architects, this book:

Focuses on learning building energy simulation while being interactive through examples and exercises.

Explains the building physics and the science behind energy performance of buildings.

Encourages integrated design approach by explaining the interactions between various building systems and their effect on energy performance of building.

Discuses “how to" model for building energy code compliance including three projects to practice whole building simulation".

Provides hands-on training of building energy simulation tools: DesignBuilder and EnergyPlus.

Table of Contents

1. Getting Started with Energy Simulation

Building energy simulation

What is needed for energy simulation

How simulation software works

Tutorial 1.1: Opening and simulating an example file

Tutorial 1.2: Creating a single-zone model

Tutorial 1.3: Evaluating the impact of building location and orientation

Tutorial 1.4: Evaluating the impact of opaque envelope components

Tutorial 1.5: Evaluating the impact of WWR and glass type

Tutorial 1.6: Evaluating the impact of occupancy density

Tutorial 1.7: Evaluating the impact of space activity

Tutorial 1.8: Evaluating the impact of lighting and equipment power

Tutorial 1.9: Evaluating the impact of daylight controls

Tutorial 1.10: Evaluating the impact of setpoint temperature

Tutorial 1.11: Evaluating the impact of fresh air supply

2. Geometry of Buildings

Tutorial 2.1: Defining thermal zoning for a building

Tutorial 2.2: Evaluating the effect of a zone multiplier

Tutorial 2.3: Evaluating the impact of the aspect ratio

Tutorial 2.4: Evaluating the impact of adjacency of the surface

3. Material and Construction

Tutorial 3.1: Evaluating the effect of lightweight and heavyweight construction

Tutorial 3.2: Evaluating the impact of roof insulation

Tutorial 3.3: Evaluating the impact of the position of roof insulation

Tutorial 3.4: Evaluating the impact of the air gap between roof layers

Tutorial 3.5: Evaluating the impact of surface reflectance

Tutorial 3.6: Evaluating the impact of roof underdeck radiant barrier

Tutorial 3.7: Evaluating the impact of a green roof

Tutorial 3.8: Evaluating the impact phase change material (PCM) in external wall

4. Openings and Shading

Tutorial 4.1: Evaluating the impact of window wall ratio and glazing type

Tutorial 4.2: Evaluating the impact of overhangs and fins

Tutorial 4.3: Evaluating the impact of internal operable shades

Tutorial 4.4: Evaluating impact of electrochromic switchable glazing on windows solar gains

5. Lighting and Controls

Tutorial 5.1: Evaluating the impact of daylighting-based controls

Tutorial 5.2: Evaluating the impact of daylight sensor placement

Tutorial 5.3: Evaluating impact of window external shades and WWR on daylight

6. Heating and Cooling Design

Tutorial 6.1: Evaluating the impact of temperature control types

Tutorial 6.2: Evaluating the impact of design day selection

Tutorial 6.3: Evaluating the impact of the air flow calculation method

7. Heating Ventilation and Air Conditioning – Unitary

Tutorial 7.1: Evaluating the impact of unitary air conditioner COP

Tutorial 7.2: Evaluating the impact of the fan efficiency of a unitary air conditioning system

Tutorial 7.3: Evaluating the impact of fan pressure rise

Tutorial 7.4: Evaluating Impact of Heat pumps on heating energy consumption

8. Heating Ventilation and Air Conditioning – Central Water Side

Tutorial 8.1: Evaluating the impact of air-cooled and water-cooled chillers

Tutorial 8.2: Evaluating the impact of variable speed drive (VSD) on a chiller

Tutorial 8.3: Evaluating the impact of VSD on a chilled water pump

Tutorial 8.4: Evaluating the impact of a cooling tower fan type

Tutorial 8.5: Evaluating the impact of condenser water pump with VSD

Tutorial 8.6: Evaluating the impact of boiler nominal thermal efficiency

Tutorial 8.7: Evaluating impact of chiller sequencing

Tutorial 8.8: Evaluating impact of thermal storage and time of use tariff

9. Heating Ventilation and Air Conditioning – Central Air Side

Tutorial 9.1: Evaluating the impact of an air-side economiser

Tutorial 9.2: Evaluating the impact of supply air fan operation mode during unoccupied hours

Tutorial 9.3: Evaluating the impact of heat recovery between fresh and exhaust air

Tutorial 9.4: Evaluating Impact of Variable Refrigerant Flow (VRF) system

Tutorial 9.5: Evaluating Impact of Demand Control Ventilation

10. Natural Ventilation

Tutorial 10.1: Evaluating the impact of wind speed on natural ventilation

Tutorial 10.2: Evaluating the impact of natural ventilation with constant wind speed and direction

Tutorial 10.3: Evaluating the impact of window opening and closing schedule

Tutorial 10.4: Evaluating the impact of window opening control based on temperature

Tutorial 10.5: Evaluating the impact of window opening area modulation on natural ventilation

Tutorial 10.6: Evaluating the impact of mixed mode operation

11. Simulation Parameters

Tutorial 11.1: Evaluating the impact of time steps per hour on run time

Tutorial 11.2: Evaluating the impact of the solar distribution algorithm

Tutorial 11.3: Evaluating the impact of the solution algorithm

Tutorial 11.4: Evaluating the effect of the inside convection algorithm

Tutorial 11.5: Evaluating the impact of the shadowing interval

12. Renewable Energy System

Tutorial 12.1: Evaluating impact of Photovoltaic (PV) Panel tilt angle

Tutorial 12.2: Evaluating impact of shading from rooftop PV

Tutorial 12.3: Evaluating impact of cell efficiency of PV

Tutorial 12.4: Evaluating performance of glazing integrated photovoltaics

Tutorial 12.5: Evaluating performance of opaque building-integrated photovoltaics

13. Costing and Life Cycle Analysis

Tutorial 13.1: Selecting glazing using cost-benefit analysis

Tutorial 13.2: Selecting HVAC system using cost-benefit analysis

Tutorial 13.3: Performing sensitivity and uncertainty analysis

14. Building Energy Code Compliance

Tutorial 14.1: Modelling building performance in four orientations

Tutorial 14.2: Creating the base case external wall for ASHRAE Standard 90.1-2010 Appendix G

Tutorial 14.3: Modelling flush windows for the base case

Tutorial 14.4: Selecting HVAC system for the base case

Tutorial 14.5: Calculating fan power for the base case

Tutorial 14.6: Understanding fan cycling

Tutorial 14.7: Specifying room air to supply air temperature difference

Tutorial 14.8: Number of chillers in the base case

Tutorial 14.9: Defining chilled-water supply temperature reset for the base case

Tutorial 14.10: Type and number of boilers for the base case

Tutorial 14.11: Defining hot-water supply temperature reset

Tutorial 14.12: Hot-water pumps

Tutorial 14.13: Defining exhaust air energy recovery parameters

Tutorial 14.14: Defining economiser parameters

Tutorial 14.15: Finding unmet hours after simulation

Tutorial 14.16: Generating the performance rating method compliance report in DesignBuilder

Tutorial 14.17: Finding process load for the base case

Tutorial 14.18: Getting ASHRAE 62.1 standard summary in DesignBuilder

Tutorial 14.19: Automating baseline building model creation

Reference

15. Project: Small Office

Project goal

Overview

Climate and location

Floor plans

Building envelope

Internal loads and schedules

Mechanical systems

16. Project: Single-Family Residence

Project goal

Overview

Climate and location

Floor plans

Internal loads and schedules

Building envelope

Mechanical systems

IECC 2018 compliance

17. Project: Large Office

Project goal

Overview

Climate and location

Floor plans

Building envelope

Internal loads and schedules

Mechanical systems

Show compliance for ASHRAE Standard 90.1-2010

Appendix A: Working of EnergyPlus™ Simulation

Appendix B: Weather Data and Tools

About the Authors

Vishal Garg is Associate Professor and Head, Center for IT in Building Science at IIIT Hyderabad. His current research interests are in the areas of energy simulation and cool roofs. He teaches Building Automation & Controls, Green Buildings, Energy Simulation and Lighting Design & Technology. He has conducted several national and international workshops on Intelligent Buildings, Green Buildings and Energy Simulation. He holds a B.Tech. (Hons.) degree in Civil Engineering from MBM Engineering College, Jodhpur and a Ph.D. from the IIT Delhi. Dr. Garg is actively involved with green building movement, development of e-tools and educational platforms for advancing energy efficiency in buildings, energy efficiency building code and its implementation. He was the founding present for Indian chapter of International Building Performance Simulation Association (IBPSA) and currently chairing the organizing committee of international conference for Building Simulation -2015. Dr.-Ing. Jyotirmay Mathur is the Professor in Mechanical Engineering and Head of Centre for Energy and Environment at Malaviya National Institute of Technology, Jaipur (India). He has done post-graduation in energy studies from the Indian Institute of Technology, New Delhi (India) and doctorate in energy systems from University of Essen (Germany). Dr. Mathur has published 52 research papers in referred international journals and has presented more than 100 papers/talks international seminars/conference, besides authoring 5 books. Dr. Mathur works in the field of energy modeling, codes and standards, energy conservation in buildings, passive cooling, adaptive thermal comfort and building integrated Photovoltaic systems. Aviruch Bhatia is an Energy Engineer. He is currently pursuing his Ph.D. from International Institute of Information Technology - Hyderabad. He holds a M.Tech. in Energy Engineering from Malaviya National Institute of Information Technology, Jaipur and M.Sc. and M.Phil. in Physics from University of Rajasthan. His area of interest lies in the field of building physics, calibrated energy simulation and fault detection and diagnostics HVAC systems. Prior to joining IIITH, he worked for three years as Assistant Manager at Sustainability Group of Spectral Consultant Pvt. Ltd. (An AECOM Company).

Subject Categories

BISAC Subject Codes/Headings:
SCI024000
SCIENCE / Energy
TEC005000
TECHNOLOGY & ENGINEERING / Construction / General
TEC005050
TECHNOLOGY & ENGINEERING / Construction / Heating, Ventilation & Air Conditioning
TEC009020
TECHNOLOGY & ENGINEERING / Civil / General