ASHRAE Journal - April 2013 - 22

and/or cooling loads. Energy storage can be connected to the
load side of a GCHP system, in the form of hot or chilled water
storage tanks, or phase-change materials such as ice or wax.
TES provides traditional benefits, such as:
• Electrical demand shifting;
• Electrical consumption shifting;
• Peak demand reduction;
• Reduced heating and/or cooling capacity requirement; and
• Reduced pumping power through the GHX.
When used in appropriate building types with a GCHP system, TES provides additional benefits, including:
• Reduced size and cost of the GHX;
• Reduced land area for a GHX;
• More balanced annual heating and cooling energy loads to
and from the GHX; and
• Greater opportunities for simultaneous heating and cooling.
More importantly, integrating energy storage with a GCHP
system can reduce the first cost of building the system while
lowering energy cost. This can provide the owner a better return on investment. TES is not suitable in all GCHP projects.
Buildings with large intermittent and predictable peak heating,
cooling loads or domestic hot water loads benefit the most from
integration of TES devices by reducing peak loads to the GHX.

Control strategies for a GCHP system integrated with TES
can be more complex than that of a typical distributed heat
pump system. A more complex control system may not be appropriate for a project with an untrained building operator, especially if they are geographically located some distance from
technical assistance. A remotely accessible controls interface
is a useful tool to address this issue by allowing a trained professional to monitor system performance and refine the operation of the system over time.

References
1. Remund, C., R. Carda. 2009. Ground Source Heat Pump Residential and Light Commercial Design and Installation Guide. International
Ground Source Heat Pump Association.
2. Huang, J., E. Franconi. 1999. “Commercial Heating and Cooling Loads Component Analysis.” Building Technologies Department
Environmental Energy Technologies Division, Lawrence Berkeley
National Laboratory, University of California.
3. MacCracken, M. 2004. “Thermal energy storage in sustainable
buildings.” ASHRAE Journal 46(9).
4. Kavanaugh, S., K. Rafferty. 1997. Design of Geothermal Systems
for Commercial and Institutional Buildings. Atlanta: ASHRAE.
5. Silvetti, B. 2002. “Application fundamentals of ice-based thermal
storage.” ASHRAE Journal 44(2).

www.info.hotims.com/44631-10

22

ASHRAE Journal

April 2013



ASHRAE Journal - April 2013

Table of Contents for the Digital Edition of ASHRAE Journal - April 2013

ASHRAE Journal - April 2013
Contents
Commentary
Industry News
Letters
Meetings and Shows
Feature Articles
Ground-Coupled Heat Pump and Energy Storage
Fan Efficiency Requirements for Standard 90.1-2013
Technology Award Case Studies:
Geothermal for 5 Ecosystems
Holistic HVAC Design
Standing Columns
Engineer’s Notebook
Data Centers
Emerging Technologies
IAQ Applications
Refrigeration Applications
Special Products
People
International Column
Energy Modeling
Products
Classified Advertising
Advertisers Index
ASHRAE Journal - April 2013 - ASHRAE Journal - April 2013
ASHRAE Journal - April 2013 - Cover2
ASHRAE Journal - April 2013 - 1
ASHRAE Journal - April 2013 - 2
ASHRAE Journal - April 2013 - Contents
ASHRAE Journal - April 2013 - Commentary
ASHRAE Journal - April 2013 - 5
ASHRAE Journal - April 2013 - Industry News
ASHRAE Journal - April 2013 - 7
ASHRAE Journal - April 2013 - 8
ASHRAE Journal - April 2013 - Letters
ASHRAE Journal - April 2013 - Meetings and Shows
ASHRAE Journal - April 2013 - 11
ASHRAE Journal - April 2013 - 12
ASHRAE Journal - April 2013 - 13
ASHRAE Journal - April 2013 - Ground-Coupled Heat Pump and Energy Storage
ASHRAE Journal - April 2013 - 15
ASHRAE Journal - April 2013 - 16
ASHRAE Journal - April 2013 - I1
ASHRAE Journal - April 2013 - I2
ASHRAE Journal - April 2013 - I3
ASHRAE Journal - April 2013 - I4
ASHRAE Journal - April 2013 - 17
ASHRAE Journal - April 2013 - 18
ASHRAE Journal - April 2013 - 19
ASHRAE Journal - April 2013 - 20
ASHRAE Journal - April 2013 - 21
ASHRAE Journal - April 2013 - 22
ASHRAE Journal - April 2013 - 23
ASHRAE Journal - April 2013 - Fan Efficiency Requirements for Standard 90.1-2013
ASHRAE Journal - April 2013 - 25
ASHRAE Journal - April 2013 - 26
ASHRAE Journal - April 2013 - 27
ASHRAE Journal - April 2013 - 28
ASHRAE Journal - April 2013 - 29
ASHRAE Journal - April 2013 - 30
ASHRAE Journal - April 2013 - 31
ASHRAE Journal - April 2013 - Geothermal for 5 Ecosystems
ASHRAE Journal - April 2013 - 33
ASHRAE Journal - April 2013 - 34
ASHRAE Journal - April 2013 - 35
ASHRAE Journal - April 2013 - 36
ASHRAE Journal - April 2013 - 37
ASHRAE Journal - April 2013 - 38
ASHRAE Journal - April 2013 - 39
ASHRAE Journal - April 2013 - Holistic HVAC Design
ASHRAE Journal - April 2013 - 41
ASHRAE Journal - April 2013 - 42
ASHRAE Journal - April 2013 - 43
ASHRAE Journal - April 2013 - 44
ASHRAE Journal - April 2013 - 45
ASHRAE Journal - April 2013 - 46
ASHRAE Journal - April 2013 - 47
ASHRAE Journal - April 2013 - Engineer’s Notebook
ASHRAE Journal - April 2013 - 49
ASHRAE Journal - April 2013 - 50
ASHRAE Journal - April 2013 - 51
ASHRAE Journal - April 2013 - 52
ASHRAE Journal - April 2013 - 53
ASHRAE Journal - April 2013 - Data Centers
ASHRAE Journal - April 2013 - 55
ASHRAE Journal - April 2013 - 56
ASHRAE Journal - April 2013 - 57
ASHRAE Journal - April 2013 - 58
ASHRAE Journal - April 2013 - 59
ASHRAE Journal - April 2013 - Emerging Technologies
ASHRAE Journal - April 2013 - 61
ASHRAE Journal - April 2013 - 62
ASHRAE Journal - April 2013 - 63
ASHRAE Journal - April 2013 - IAQ Applications
ASHRAE Journal - April 2013 - 65
ASHRAE Journal - April 2013 - 66
ASHRAE Journal - April 2013 - Refrigeration Applications
ASHRAE Journal - April 2013 - Special Products
ASHRAE Journal - April 2013 - People
ASHRAE Journal - April 2013 - International Column
ASHRAE Journal - April 2013 - 71
ASHRAE Journal - April 2013 - Energy Modeling
ASHRAE Journal - April 2013 - 73
ASHRAE Journal - April 2013 - Products
ASHRAE Journal - April 2013 - 75
ASHRAE Journal - April 2013 - 76
ASHRAE Journal - April 2013 - 77
ASHRAE Journal - April 2013 - 78
ASHRAE Journal - April 2013 - Classified Advertising
ASHRAE Journal - April 2013 - Advertisers Index
ASHRAE Journal - April 2013 - Cover3
ASHRAE Journal - April 2013 - Cover4
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