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SPEED VARIATION MAKES IT POSSIBLE TO ADAPT THE REFRIGERATING CAPACITY OF THE COMPRESSOR TO THE LOAD OF THE SYSTEM. IN THE CASE OF AN AMERICAN SUPERMARKET, THE ANNUAL RANGE OF REFRIGERATING NEED CAN REACH A FACTOR OF 3. USING A VARIABLE-SPEED COMPRESSION SYSTEM, IT IS POSSIBLE TO OBTAIN ENERGY SAVINGS OF 25%. GIVEN THE ENERGY AND INVERTER COSTS, A 4 YEAR PAYBACK IS ACHIEVABLE. FOR PARALLEL SYSTEMS, ENERGY SAVINGS DEPEND ON THE CONTROL OF THE SUCTION PRESSURE. SAVINGS ON THE ORDER OF 7% ARE ACHIEVABLE. WHEN THE INVERTER AND THE COMPRESSOR ARE WELL MATCHED, EXPERIMENTAL RESULTS SHOW SATISFACTORY EFFICIENCY FOR A SPEED VARYING FROM 30 TO 60 HERTZ. BELOW 30 HERTZ, EFFICIENCY DECREASES IN SUCH A WAY THAT NO SAVING IS OBTAINABLE.
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Details
- Original title: OPPORTUNITIES FOR VARIABLE SPEED MODULATION IN REFRIGERATION.
- Record ID : 1990-1675
- Languages: English
- Source: Refrigeration for food and people.
- Publication date: 1988/09/05
- Document available for consultation in the library of the IIR headquarters only.
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Indexing
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Variation de vitesse pour compresseurs frigorif...
- Author(s) : MEARINI A.
- Date : 1998/11/11
- Languages : French
- Source: 9e Y-Symposium Froid. Résumé des conférences.
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ENERGY EFFICIENCY IN REFRIGERATION SYSTEMS: A C...
- Author(s) : JOSEPH B.
- Date : 1991/08/10
- Languages : English
- Source: New challenges in refrigeration. Proceedings of the XVIIIth International Congress of Refrigeration, August 10-17, 1991, Montreal, Quebec, Canada.
- Formats : PDF
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Reduction of energy consumption by means of con...
- Author(s) : JAKOBSEN A., NAJMAEI M., RASMUSSEN B. D.
- Date : 1996/09/03
- Languages : English
- Source: Applications for Natural Refrigerants
- Formats : PDF
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Measured energy consumption of variable-air-vol...
- Author(s) : LORENZETTI D. M., NORFORD L. K.
- Date : 1992
- Languages : English
- Source: ASHRAE Transactions 1992. Part 2.
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ENERGY MANAGEMENT IN SUPERMARKETS.
- Author(s) : BLOCH E.
- Date : 1984/09/03
- Languages : English
- Source: Advances in refrigeration and heat pump technology achieved by the application of micro-electronics and the control of systems by micro-electronic devices.
- Formats : PDF
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