Jan 31, 2023  
2019-2020 Graduate Academic Catalog 
2019-2020 Graduate Academic Catalog [ARCHIVED CATALOG]

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AE 6590 - District Energy Mechanical Systems

3 lecture hours 0 lab hours 3 credits
Course Description
This course evaluates district energy as a part of integrated systems that provide one or more forms of thermal energy or a combination of thermal energy and electric power from a central plant(s) to meet the heating, cooling, or combined thermal energy and power needs of end-users.  The course will cover the design, performance, operation and maintenance, transmission and distribution networks, heat transfer, fluid flow, and measurement of thermal energy from district energy systems in addition to covering the environmental impacts compared to on site generation at each facility.  This course will also stress the coordination and integration with electric district energy system components typically housed within on the same site.  (prereq: graduate standing)
Course Learning Outcomes
Upon successful completion of this course, the student will be able to:
  • Identify the required components in a district energy system
  • Calculate how to size equipment to meet full-load and part-load conditions
  • Discuss various heating and cooling equipment options for central plants
  • Calculate the load for a district energy system including system diversity
  • Identify buildings that are candidates for inclusion in the district energy system
  • Discuss the types of piping and joining methods used in district systems
  • Discuss the site distribution options for cooling and heating systems
  • Create site distribution profiles based on existing topography
  • Discuss the various methods of flow rate measurement at the consumer interconnection
  • Explain the basic components required of a steam and condensate system
  • Design a basic steam system including pipe sizing, steam traps, drip legs, pressure reducing valves, condensate pumps, and boiler feed pumps
  • Design a district energy system with team members for an integrated design

Prerequisites by Topic
  • HVAC system design

Course Topics
  • What is district energy?
  • History, examples & applicability of district energy systems
  • Components and benefits of district energy systems
  • System master planning
  • Technical issues
  • Developing the database and alternatives
  • Construction and economic considerations and costs
  • District cooling plants
  • Decision to cogenerate
  • Steam vs hot water thermal energy plants
  • Heating fuels
  • Distribution systems
  • Site distribution routes
  • Access point and pit design
  • Steam fundamentals
  • Condensate pump and boiler feed pump sizing
  • Consumer interconnections
  • Types of heat exchangers
  • Consumer interconnection metering

David Grassl

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