Geothermal Heat Pump and Energy Recovery Applications
ASHRAE Technical Committee 6.8

Meetings Information

Atlanta Meeting, January 12 - 16, 2019

                                                                                                 
Wednesday, June 27, 8:00 AM - 9:30 AM
Seminar   (Intermediate) Room:

Design and Implementation of Solar-Assisted Geothermal Systems: From A to Z

  • Track: Fundamentals and Applications
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Chair:  Janice Means, P.E., Lawrence Technological University, south, MI     .

Technical Committee: 6.8 Geothermal Heat Pump and Energy Recovery Application

    • Integrate  solar-assisted geothermal system with a a building and its mechanical systems
    • Understand why and how hourly energy modeling can be used during the building design process to reduce cost and improve the performance of a solar-assisted geothermal system.
    • Understand how to properly design a chilled beam system that is efficient, reliable and cost effect while seamlessly working with the other parts od the solar-assisted geothermal system.
    • Explain the impact of recognizing geothermal field issues late in th construction process so that such issues can be preempted
    1. Solar and geothermal systems play an enabling role in the net-zero buildings and communities. Their integration and interaction with the mechanical systems of the building must be clearly understood to ensure optimal performance and operation, this seminar describes the steps of integrated design and implementation of solar-assisted geothermal systems: Modeling, Design, Installation and Commissioning.
1. Optimizing the Ground Heat Exchanger for a Renewable System
      1. Ed Lohrenz, Geoptimize Inc, Winnipeg, MB Canada.
      2. Ground-Loop heat exchanger (GLHE) replaces both the gas line and the cooling tower needed by conventional HVAC system. The size and cost sensitive to peak heating and cooling loads of the system it is connected to and the balance of annual heating and cooling loads, In effect, it is an energy storage device; absorbing energy removed from the building while cooling and serving as a heat source for when heating.

 

2. The Integrated Renewable System, Thermal Storage and Hybrid

      • Jim Leidel, Member, DTE Energy, Springfield, IL
      • The energy model is built and the design team has incorporated changes balancing energy loads, Designing the ground-loads heat exchanger (GLHE) system begins with evaluating site assets. GLHE designers need to incorporate system assets as needed, such as solar thatmal and borehole thermal storage. Low energy pumping and specialized control sequences are added to optimize renewable/conventional asset operation. This presentation guides mechanical engineers through the design challenges and effective solutions of a GLHE integrated and solar thermal and borehole thermal storage.

3. Active Chilled Beam with GSHP and Solar together: Highest Efficiency

      • Khalid Nagidi, Member, Energy Management Consulting Group, Wantagh, NY
      • Designers are always looking for technologies that can assist them reduce the energy required to operate a cooling and heating system. Therefore, combining active chilled beam with ground source heat pumps and solar hot water system can achieve the highest efficiency possible. This presentation provides designers with solid knowledge on Active Chilled Beam technologies in commercial buildings. It explains the steps to be followed during the design phase from sizing the water and air sides to control strategies.

4. Commissioning of Geothermal Fields 

      • Andy DeRocher, Member, Sustainable Engineering Group LLC, Middleton, WIThis presentation demonstrates how commissioning can improve the quality of the design, installation and operation of geothermal fields and illustrates this with case study examples. The presentation also enables designers to predict and balance energy loads to and from the ground early in the design process, using hourly energy modeling simulations as a design tool. This way, the size of the GLHE can be reduced and the long term performance of the system becomes more stable and predictable.
 

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