Description and contextualization of the subject

The subject of "Building Energy Performance Calculation", taught in the Erasmus Mundus Master in Smarts Cities and Communities (SMACCs), is a compulsory subject of 6 ECTS that is part of the major Energy Efficiency in Buildings.



The final objective of this course is to put into practice the fundamental and advanced concepts of buildings physics through the use of tools for estimating the energy demand of buildings, as well as their energy consumption through the analysis of different types of thermal systems. By means of these tools it will be possible to evaluate the energy performance and energy efficiency of buildings, quantifying the impact that different actions (active or passive) may have on residential or office buildings, as well as the use of different thermal systems (boilers, heat pumps, thermal panels, etc.).



Generally, this type of building energy simulation tools are used for thermal systems design and to evaluate the economic/environmental costs or energy benefits of different strategies, both in the building design stage and for decision making in retrofitting.

Learning outcomes of the subject

LO1. Identify the variables and parameters that have an energetic impact on a thermal zone.

LO2. Apply the energy balance in a building.

LO3. Design the thermal systems of buildings.

LO4. Estimate the energy demand of buildings applying the method of the degree-days.

LO5. Use building energy simulation software and analyze the results in order to propose energy demand reduction alternatives.

LO6. Implement different thermal systems on a building energy simulation software to supply the energy demand.

Ordinary call: orientations and renunciation

EVALUATION CRITERIA:



FINAL WORK

- Format of the presentation (plots, margins, structure, etc.

- Energy demand results.

- Proposals for energy improvement strategies and calculations.

- Proposals for HVAC systems and their implementations in the software.

- Oral presentation and results discussion.



MULTIPLE-CHOICE QUESTIONS

- Correct answers to questions about theory concepts taught in class.



PARTICIPATION:

- Active and positive participation in class.



RESIGNATION: In order to make the option of resignation effective, the student must let the coordinator of the course know by email before the end of the subject classes.

Extraordinary call: orientations and renunciation

The evaluation criteria are the same as those of the ordinary call. The grade corresponding to attendance and participation in class will be that obtained during the ordinary call.



RESIGNATION: In order to make the option of resignation effective, the student must let the coordinator of the course know by email before the deliverable of the work.

Temary

This course is focused on the acquisition of fundamental and advanced concepts in the field of energy in buildings. The variables and parameters influencing the thermal behaviour of buildings and HVAC systems will be analysed and evaluated from a theoretical and practical point of view through their implementation in a building energy simulation tool. In addition to this, guidelines will be given on the possible modifications to be made in buildings to improve their energy efficiency. For this purpose, Design Builder software will be used as a computer calculation tool.





SYLLABUS:



CHAPTER 1: INTRODUCTION TO BUILDING ENERGY PERFORMANCE

· 1.1 Energy consumption in buildings: background

· 1.2 General concepts

· 1.3 Energy assessment methods in buildings



CHAPTER 2: SIMPLIFIED METHODS FOR THE ENRGY ASSESSMENT OF BUILDINGS

· 2.1 Heat transfer in buildings

· 2.2 Energy balance in buildings

· 2.3 Heat losses (in heating mode)

· 2.4 Heat gains

· 2.5 Design calculations

· 2.6 Degree-day method



CHAPTER 3: BUILDING ENERGY SIMULATION: ENERGY DEMAND

· 3.1 Dynamic energy balance

· 3.2 Heat balance method

· 3.3 Building energy simulation tools



CHAPTER 4: BUILDING ENERGY SIMULATION: ENERGY CONSUMPTION (HVAC)

· 4.1 Introduction to HVAC in Design Builder

· 4.2 Loop data

· 4.3 Performance curve data

· 4.4 Zone group data

· 4.5 HVAC templates

· 4.6 Setpoint manager data

Bibliography

Compulsory materials

Materials that will be published throughout the course in the eGELA virtual platform (power points, exercises, reports, etc.)

Basic bibliography

1. J.A. Clarke, Energy Simulation in Building Design, Butterworth-Heinemann, Oxford, 2001



2. Garg, V., Mathur, J., Tetali, S., Bhatia, A. Building energy simulation: A workbook using designbuilder, CRC Press, 2017.



3. L. Jankovic, Designing Zero Carbon Buildings Using Dynamic Simulation Methods, Routledge, 2017.



4. C.E. Hagentoft, Introduction to Building Physics, Studentliteratur, 2001



5. J. Waltz, Computerized Building Energy Simulation Handbook, Lilburn, Fairmont Press, 2000



6. Carnahan B., Luther H.A., Wilkes J.O., Cálculo numérico, métodos aplicaciones, Rueda, 1979.

In-depth bibliography

1. ASHRAE Guideline 14-2002, Measurement of Energy and Demand Savings







2. A.M. Malkawi, G. Augenbroe, Advanced Building Simulation, New York, Spon Press, 2004







3. C. Schttich, Solar Architecture: Strategies, Visions, Concepts, München, Edition Detail, 2003







4. Jacob, M.- Heat Transfer, Vol. I y II. JohnWiley and Sons,. 1957.







5. R.H. Howell, H.J. Sauer, W.J. Coad, Principles of Heating, Ventilation and Air Conditioning, ASHRAE, 2010

Journals

1. Energy and Buildings







2. Energy Policy







3. Building and Environment







4. Applied Energy

Links

http://www.ashrae.org/