Topic: Modeling of Ground Source Heat Pumps

 
Speaker: Xiaobing Liu, ClimateMaster Inc.
 
Integrated with an advanced vertical borehole field heat transfer model, heat pump library, and ground/grout thermal properties database, the widely accepted building energy analysis program - eQUEST/DOE-2.2 becomes a powerful tool in the design and energy analysis of ground source heat pump systems. In this presentation, the newly enhanced GSHP simulation features of eQUEST/DOE-2.2 will be presented, including:
- g-function based algorithm for modeling vertical ground loop heat exchanger (VGLHE);
- dedicated wizard interface and built-in help/design tips/databases for specifying VGLHE;
- add-on feature for selecting water-to-air heat pump from equipment libraries provided by heat pump manufacturer;
- capability for modeling water-to-air heat pump with staged capacity and air flow.
 
An simulation-based design process for GSHP system, which is facilitated with eQUEST/DOE-2.2, will be demonstrated. In addition, examples of using the enhanced eQUEST/DOE-2.2 for GSHP related energy analysis will be presented.
 
At the end, the limitation of current GSHP simulation capability of eQUEST/DOE-2.2 and the plan for future enhancements will be discussed.
 
Xiaobing is the principle designer and developer of recent enhancements to the DOE-2 simulation source code to more effectively model GSHP systems. He is also a regular responder to BLDG-SIM questions regarding GSHP analysis in DOE-2/eQUEST, providing BLDG-SIMers w/ access to a library of ClimateMaster GSHP components that are directly accessible via the eQUEST wizards.
 
All that enrolled members need to do to register for this event is to click on the link (http://www.energytrust.org/bsug), enter their email address, preferences and finally click on register.