Passive solar heating and natural cooling of an earth-integrated design
The Joint Institute for Heavy Ion Research is being designed with innovative features that will greatly reduce its energy consumption for heating, cooling, and lighting. A reference design has been studied and the effects of extending the overhang during summer and fall, varying glazing area, employing RIB, and reducing internal heat by natural lighting have been considered. The use of RIB and the extendable overhang increases the optimum window glazing area and the solar heating fraction. A mass-storage wall which will likely be included in the final design has also been considered. A figure of merit for commercial buildings is the total annual energy consumption per unit area of floor space. A highly efficient office building in the Oak Ridge area typically uses 120 to 160 kWhr/m/sup 2/. The Joint Institute reference design with natural lighting, an annual average heat pump coefficient of performance (COP) equal to 1.8, RIB, and the extendable overhang uses 71 kWhr/m/sup 2/. This figure was determined from NBSLD simulations corrected for the saving from RIB. The internal heat energy from lighting and equipment used in the simulation was 1653 kWhrs/month (high natural lighting case) which is much lower than conventional office buildings. This value was adopted because only a portion of the building will be used as office space and efforts will be made to keep internal heat generation low. The mass-storage wall and ambient air cooling will reduce energy consumption still further. The combined savings of the innovative features in the Joint Institute building are expected to result in a very energy efficient design. The building will be instrumented to monitor its performance and the measured data will provide a means of evaluating the energy-saving features. The efficiency of the design will be experimentally verified over the next several years.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- Sponsoring Organization:
- USDOE Solar Energy
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 5593721
- Report Number(s):
- CONF-800449-1
- Resource Relation:
- Conference: National technical conference - earth sheltered building design innovations, Oklahoma City, OK, USA, 18 Apr 1980
- Country of Publication:
- United States
- Language:
- English
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EARTH-COVERED BUILDINGS
COOLING
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COOLING LOAD
HEATING LOAD
ORNL
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THERMAL MASS
WINDOWS
BUILDINGS
EQUIPMENT
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NATIONAL ORGANIZATIONS
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US AEC
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140901* - Solar Thermal Utilization- Space Heating & Cooling