Prefeasibility analysis and study of the seasonal storage systems for the Pennsylvania Avenue Redevelopment Project

Technical Report · Tue Aug 01 04:00:00 EDT 1978

DOI:https://doi.org/10.2172/6762378· OSTI ID:6762378

An Annual Cycle Energy Storage (ACES) concept as applied on a community scale to Market Square Complex on Pennsylvania Avenue, Washington, D.C. is discussed. Four alternatives of seasonal energy storage are examined. Each alternative was examined on the energy saving aspect and its operational and economic feasibility. Of the alternatives considered the most efficient system from the point of view of energy and economic feasibility was found to be system No. 3 dealing with heat pump generated ice for seasonal storage and it was thus selected and recommended for further study. The system utilizes the heat pump for heating the buildings in winter and for meeting the domestic hot water requirements. The heat pump obtains its heat by extracting the heat of fusion of water and thereby converting it to ice. The method suggested is to use the ice maker evaporator with water sprayed over the evaporator coil and being converted to ice. The ice would be used to cool the buildings during the summer by circulating chilled water through the ice bin. This system is expected to supply about 70% of the summer cooling requirements and provide a 100% cut in electric peak demand. The heat pumpsystem using the slab as storage of the heat rejected for reusing in winter time was found inefficient from the energy point of view. Only about 4% of the heat required during winter could be stored in the slab. The solar energy annual storage was found efficient energywise but prohibitive from the economical point of view. The winter cold air potential to make ice for storage was found efficient from the energy point of view but prohibitive from the economical point of view and because of unpredictability of system performance. It is therefore, recommended that the heat pump system with ice storage be taken up for a further feasibility study.

• Research Organization: Dubin-Bloome Associates, New York (USA)
• DOE Contract Number: EC-77-X-01-2275
• OSTI ID: 6762378
• Report Number(s): HCP/M2275-01
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320100* -- Energy Conservation
Consumption
& Utilization-- Buildings
AIR CONDITIONING
ANNUAL CYCLE ENERGY SYSTEM
APARTMENT BUILDINGS
APPLIANCES
BUILDINGS
COMMERCIAL BUILDINGS
ECONOMICS
ENERGY
ENERGY CONSERVATION
ENERGY SOURCES
ENERGY STORAGE
EQUIPMENT
FEASIBILITY STUDIES
HEAT EXCHANGERS
HEAT PUMPS
HEAT STORAGE
HEATERS
HEATING
NORTH AMERICA
OPERATION
RENEWABLE ENERGY SOURCES
RESIDENTIAL BUILDINGS
SOLAR COLLECTORS
SOLAR ENERGY
SPACE HEATING
STORAGE
THERMAL ENERGY STORAGE EQUIPMENT
USA
WASHINGTON DC
WATER HEATERS