MEBS6006 Environmental Services I

Home | What's New | Schedule | Assignments

Energy Calculations

1.  Basic Concepts

• From load estimation to energy calculations
• Tasks at different design stages
• Energy flow & concept in buildings

2.  Energy Calculation Methods

• Steady-state methods
• Degree-day method
• Variable base degree-day method
• Bin and modified bin methods
• Dynamic simulation methods

3.  Building Energy Simulation

• General approach
• Four major elements
• Information flow
• How to perform building energy simulation?
• Common simulation tools

4.  Software Demonstration

• TRACE 700 (Trane Air Conditioning Economics)   http://www.trane.com/commercial/software/
• Energy-10  http://www.nrel.gov/buildings/energy10/
• DOE-2 (VisualDOE 4.0) http://www.archenergy.com/products/visualdoe/

---

References:

• ASHRAE, 2001. ASHRAE Handbook Fundamentals 2001, Chapter 31 - Energy Estimating and Modeling Methods, American Society of Heating, Refrigerating and Air-Conditioning Engineers Inc., Atlanta, GA. [AV 697 A82 H01]
• Hui, S. C. M., 1998. Simulation based design tools for energy efficient buildings in Hong Kong, Hong Kong Papers in Design and Development, Vol. 1, 1998, pp. 40-46, Department of Architecture, University of Hong Kong. [HTML]
• Kreider, J. F, (ed.), 2001. Handbook of Heating, Ventilation, and Air Conditioning, Chapter 6: HVAC Design Calculations, Section 6.2: Simulation and Modeling -- Building Energy Consumption, CRC Press, Boca Raton, Florida. [ENGnetBASE 697 H23 K92][ebook]

---

| Created: Aug 2004 | Update: 18 Oct 2004 | By: cmhui@hku.hk |