A TRNSYS/GROCS simulation of the TECH house I ground-coupled series solar-assisted heat pump system

Journal Article · Tue Nov 01 04:00:00 EST 1983 · J. Sol. Energy Eng.; (United States)

DOI:https://doi.org/10.1115/1.3266406· OSTI ID:6979947

Roeder, D J; Reid, R L

The series solar-assisted heat pump heating system with ground-coupled storage in The University of Tennessee's TECH House I in Knoxville, Tennessee, has been modeled using TRNSYS/GROCS and was compared to the experimental performance for the 1980-81 heating season. The simulation results were within 8 percent of the experimental measurements. Both simulation and experimental results showed that ground coupling of thermal storage led to the elimination of electric resistance backup heat and a large reduction in the peak heating demand of the house. Results of a parametric study showed that, in general, a ground-coupled storage tank performs better than a storage tank placed outdoors in the Knoxville area. Application of a next generation heat pump resulted in the most significant impact on the seasonal performance factor. As expected, higher performance collectors and larger collector areas led to higher system seasonal performance. An economic analysis showed that the series solar heat pump system cannot economically compete with the stand-alone heat pump system in the Knoxville area.

• Research Organization: Mechanical and Aerospace Engineering Department, Energy, Environment, and Resources Center, The University of Tennessee, Knoxville, TN
• OSTI ID: 6979947
• Journal Information: J. Sol. Energy Eng.; (United States), Journal Name: J. Sol. Energy Eng.; (United States) Vol. 105:4; ISSN JSEED
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140901* -- Solar Thermal Utilization-- Space Heating & Cooling
AIR CONDITIONERS
BUILDINGS
COMPARATIVE EVALUATIONS
COMPUTER CODES
COMPUTERIZED SIMULATION
ENERGY SYSTEMS
EQUIPMENT
FEDERAL REGION IV
G CODES
GROUND SOURCE HEAT PUMPS
HEAT PUMPS
HEATING
HEATING SYSTEMS
HOUSES
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PERFORMANCE
RESIDENTIAL BUILDINGS
SEASONAL VARIATIONS
SIMULATION
SOLAR AIR CONDITIONERS
SOLAR COLLECTORS
SOLAR COOLING SYSTEMS
SOLAR EQUIPMENT
SOLAR HEATING
SOLAR HEATING SYSTEMS
SOLAR SPACE HEATING
SOLAR-ASSISTED HEAT PUMPS
SPACE HEATING
T CODES
TENNESSEE
THERMAL ENERGY STORAGE EQUIPMENT
USA
VARIATIONS