Operating comparison of absorption and centrifugal chillers

Journal Article · Sat Oct 01 00:00:00 EDT 1994 · ASHRAE Journal (American Society of Heating, Refrigerating and Air-Conditioning Engineers); (United States)

OSTI ID:6829348

Tozer, R M ^[1]

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1. York International, Berkshire (United Kingdom) South Bank Univ., London (United Kingdom)

Previous papers have dealt with the comparisons of absorption and centrifugal chillers and indicated the benefits of using absorption machines. Also, the ideal thermodynamic performances and limitations of absorption cycles have been derived. Nevertheless, the need to update this recent work is necessary for several reasons: utility company tariffs are under continuous review; large, double stage, direct-fired absorption chillers are being introduced into the market; and the CFCs are being phased out. The introduction of direct-fired absorption chillers into the United Kingdom (UK) market indicates that maintenance costs are cheaper than expected. The CFC issue has obliged the market to use alternative refrigerants for centrifugal chillers. For this study, centrifugal chillers using R-134a were considered instead of other refrigerants because of the present market trend, although the use of this refrigerant increases the costs of these types of chillers. A comparative study using R-123 could be considered, but is outside the scope of this present work. In addition, payback periods were calculated in this study for both low voltage and high voltage applications, for when low voltage or high voltage electricity is supplied to the building. The client has the option of installing high voltage substations and switchgear in the building to benefit from lower tariffs from the electric utility companies.

• OSTI ID: 6829348
• Journal Information: ASHRAE Journal (American Society of Heating, Refrigerating and Air-Conditioning Engineers); (United States), Vol. 36:10; ISSN 0001-2491
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
ABSORPTION REFRIGERATION CYCLE
PERFORMANCE
BUILDINGS
AIR CONDITIONERS
VAPOR COMPRESSION REFRIGERATION CYCLE
COMPARATIVE EVALUATIONS
COOLING SYSTEMS
REFRIGERATING MACHINERY
ENERGY SYSTEMS
EQUIPMENT
EVALUATION
MACHINERY
320106* - Energy Conservation
Consumption
& Utilization- Building Equipment- (1987-)