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OBJECTIVES
The overall objective of this course is to introduce students to the principles and techniques for analysis and design of energy-efficient systems for maintaining a comfortable, healthy, and productive indoor environment in buildings. Upon successful completion of the course, students will have:
- The ability to identify the criteria and metrics for a comfortable and healthy indoor environment. These criteria and metrics are determined by human physiology, but for practical design purposes, are also dictated by building codes and standards.
- The ability to identify and analyze the characteristics of weather, building construction, and building operations as they define the requirements for comfortable and healthy indoor environment.
- The ability to analyze the heating, ventilating, and air conditioning requirements of residential and small commercial building. Given the need to maintain a comfortable and healthy indoor environment, you will be able to determine HVAC loads (i.e., the requirements) as a function of a building’s physical characteristics, its use, and its climatic location. The analyses will be performed by applying basic engineering knowledge with hand calculations and computer simulation.
- The ability to select and size heating and cooling equipment to meet HVAC requirements. This ability requires knowledge of alternative HVAC equipment performance, the interactions among system components, and the interactions of the system with the building loads.
- The ability to evaluate the impact of building design decisions on HVAC equipment size and cost, annual HVAC energy consumption and cost, and environmental impact of energy consumption on power plant emissions.
EVALUATION
Your understanding of the course material and your ability to apply the material to engineering problems will be evaluated through a combination of homework assignments, quizzes, examinations, and projects. Homework will be assigned and graded weekly. Several of the homework assignments may also involve small experiments or real building data analysis.
The comprehensive problems or projects will be more involved than the homework and will typically include design tasks. Four projects will be assigned during the semester on the topics of thermal comfort, design of a small boiler system for heating, and design of a commercial building system using packaged rooftop air conditioning equipment.
One midterm examinations will be given during the semester. The final course evaluation will be in the form of a final individual class project. In addition, short quizzes will be administered throughout the semester at the beginning of class on most Thursdays.
COMPUTER TOOLS
Design and analysis of comfort control systems for real buildings are not performed by hand with pencil and paper alone. Rather, there are many computer-based tools available to the engineer. Some of these tools are comprehensive computer simulation programs that calculate building conditions and energy consumption hour-by-hour throughout the year. Other tools provide an environment or component models that allow faster calculation of user-defined problems.
- Spreadsheet programs, specifically Microsoft Excel, will be used for much of our analysis. In addition to the well-known calculation capabilities of these programs, we will also explore using VisualBasic programs to extent Excel beyond simple spreadsheet calculations. These tools will be particularly helpful for load and psychrometric analysis.
- eQUEST is a simulation program for design and analysis of the energy performance of buildings. This state-of-the-art analysis program performs hourly simulations of heating and cooling energy requirements in buildings, including effects of passive solar energy and daylighting. The program is one of several that are appropriate for LEED certification. You will use the program in two of your projects to evaluate design decisions on building energy use. The program is installed in the Bechtel Lab.
- A CD of supplemental programs and data tables is packaged with the textbook. The CD includes tools for many common design and analysis tasks.
- EES (Engineering Equation Solver) is an analysis tool that solves simultaneous sets of equations. The program allows the user to type a group of equations using arbitrary variable names. Provided that the problem is fully defined, the program will solve for all variable values. Most valuable, the program has built-in functions for thermophysical properties of gases and liquids. While the program is a valuable tool for any engineering analysis, it will be particularly useful for psychrometric process analysis. The program is installed in the Bechtel Lab and is available for legal download from the course website.
GENERAL INFORMATION
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