BR9401922A - Processo para seletivamente adicionar ou baixar estágios de compressão dentro de unidades de refrigeração discretas - Google Patents
Processo para seletivamente adicionar ou baixar estágios de compressão dentro de unidades de refrigeração discretasInfo
- Publication number
- BR9401922A BR9401922A BR9401922A BR9401922A BR9401922A BR 9401922 A BR9401922 A BR 9401922A BR 9401922 A BR9401922 A BR 9401922A BR 9401922 A BR9401922 A BR 9401922A BR 9401922 A BR9401922 A BR 9401922A
- Authority
- BR
- Brazil
- Prior art keywords
- compression stages
- refrigeration units
- selectively adding
- lowering compression
- discrete
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
- G05D23/1912—Control of temperature characterised by the use of electric means using an analogue comparing device whose output amplitude can take more than two discrete values
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Air Conditioning Control Device (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/057,910 US5327742A (en) | 1993-05-07 | 1993-05-07 | Hierarchial control for discrete chiller units |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9401922A true BR9401922A (pt) | 1994-11-29 |
Family
ID=22013497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9401922A BR9401922A (pt) | 1993-05-07 | 1994-05-06 | Processo para seletivamente adicionar ou baixar estágios de compressão dentro de unidades de refrigeração discretas |
Country Status (5)
Country | Link |
---|---|
US (1) | US5327742A (pt) |
EP (1) | EP0623862B1 (pt) |
AU (1) | AU666264B2 (pt) |
BR (1) | BR9401922A (pt) |
FI (1) | FI112977B (pt) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5301513A (en) * | 1993-05-07 | 1994-04-12 | Carrier Corporation | Monitoring and control of chiller units |
GB9421047D0 (en) * | 1994-10-11 | 1994-12-07 | Ricardo Aerospace Ltd | Turbines |
US6711445B1 (en) | 1998-12-17 | 2004-03-23 | Kysor/Warren | Refrigeration control apparatus and method |
US6185946B1 (en) | 1999-05-07 | 2001-02-13 | Thomas B. Hartman | System for sequencing chillers in a loop cooling plant and other systems that employ all variable-speed units |
US6505475B1 (en) | 1999-08-20 | 2003-01-14 | Hudson Technologies Inc. | Method and apparatus for measuring and improving efficiency in refrigeration systems |
US6647735B2 (en) * | 2000-03-14 | 2003-11-18 | Hussmann Corporation | Distributed intelligence control for commercial refrigeration |
US6973794B2 (en) * | 2000-03-14 | 2005-12-13 | Hussmann Corporation | Refrigeration system and method of operating the same |
US6999996B2 (en) * | 2000-03-14 | 2006-02-14 | Hussmann Corporation | Communication network and method of communicating data on the same |
US7000422B2 (en) | 2000-03-14 | 2006-02-21 | Hussmann Corporation | Refrigeration system and method of configuring the same |
US6332327B1 (en) * | 2000-03-14 | 2001-12-25 | Hussmann Corporation | Distributed intelligence control for commercial refrigeration |
US7047753B2 (en) * | 2000-03-14 | 2006-05-23 | Hussmann Corporation | Refrigeration system and method of operating the same |
GB2367336B (en) * | 2000-09-28 | 2004-09-15 | Ingersoll Rand Europ Sales Ltd | Compressor control system |
US6666042B1 (en) * | 2002-07-01 | 2003-12-23 | American Standard International Inc. | Sequencing of variable primary flow chiller system |
EP1886074A4 (en) * | 2005-06-03 | 2012-03-07 | Carrier Corp | PERFORMANCE CONTROL FOR REFRIGERANT SYSTEM WITH MULTIPLE COMPRESSORS |
US8484990B2 (en) * | 2007-02-14 | 2013-07-16 | Carrier Corporation | Optimization of air cooled chiller system operation |
US8291720B2 (en) * | 2009-02-02 | 2012-10-23 | Optimum Energy, Llc | Sequencing of variable speed compressors in a chilled liquid cooling system for improved energy efficiency |
MY188565A (en) * | 2009-07-28 | 2021-12-22 | Toshiba Carrier Corp | Heat source unit |
US20130125565A1 (en) * | 2011-11-17 | 2013-05-23 | Optimum Energy,Llc | Systems and methods for reducing energy consumption of a chilled water distribution system |
US11536507B2 (en) | 2011-11-17 | 2022-12-27 | Optimum Energy, Llc | Systems and methods for reducing energy consumption of a chilled water distribution system |
US10590937B2 (en) * | 2016-04-12 | 2020-03-17 | Toyota Motor Engineering & Manufacturing North America, Inc. | Compressed air system and method of operating same |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3513662A (en) * | 1968-11-12 | 1970-05-26 | Armour & Co | Feedback control system for sequencing motors |
US4467617A (en) * | 1980-10-17 | 1984-08-28 | The Coca-Cola Company | Energy management system for chilled product vending machine |
US4463574A (en) * | 1982-03-15 | 1984-08-07 | Honeywell Inc. | Optimized selection of dissimilar chillers |
US4483152A (en) * | 1983-07-18 | 1984-11-20 | Butler Manufacturing Company | Multiple chiller control method |
US4506516A (en) * | 1984-04-06 | 1985-03-26 | Carrier Corporation | Refrigeration unit compressor control |
GB2176312B (en) * | 1985-05-29 | 1990-02-14 | York Int Ltd | A heating and/or cooling system |
JPH0820136B2 (ja) * | 1990-01-24 | 1996-03-04 | 株式会社日立製作所 | 水冷却装置 |
-
1993
- 1993-05-07 US US08/057,910 patent/US5327742A/en not_active Expired - Fee Related
-
1994
- 1994-05-05 AU AU61902/94A patent/AU666264B2/en not_active Ceased
- 1994-05-06 FI FI942098A patent/FI112977B/fi active
- 1994-05-06 BR BR9401922A patent/BR9401922A/pt not_active IP Right Cessation
- 1994-05-09 EP EP94303308A patent/EP0623862B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
AU6190294A (en) | 1994-11-10 |
AU666264B2 (en) | 1996-02-01 |
FI112977B (fi) | 2004-02-13 |
EP0623862A2 (en) | 1994-11-09 |
FI942098A0 (fi) | 1994-05-06 |
US5327742A (en) | 1994-07-12 |
EP0623862B1 (en) | 1998-10-28 |
EP0623862A3 (en) | 1994-11-23 |
FI942098A (fi) | 1994-11-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EE | Request for examination | ||
FB36 | Technical and formal requirements: requirement - article 36 of industrial property law | ||
FF | Decision: intention to grant | ||
FG9A | Patent or certificate of addition granted | ||
B21A | Expiry acc. art. 78, item i of ipl- expiry of the term of protection |
Free format text: PATENTE EXTINTA EM 06/05/2014 |