Patent
Optimized control system for cooling systems
Scot M. Duncan
- 18 Dec 2007
112
TL;DR: A cooling system for providing conditioned air to a facility includes a chiller or other cooling subsystem, a cooling tower subsystem and one or more air handling units or process cooling units as mentioned in this paper.
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Abstract: A cooling system for providing conditioned air to a facility includes a chiller or other cooling subsystem, a cooling tower subsystem and one or more air handling units or process cooling units. The cooling subsystem may advantageously include one or more chillers (e.g., variable speed chillers, constant speed chillers, absorption chillers, etc.) and chilled fluid pumps. The cooling tower subsystem includes one or more cooling tower units and condenser fluid pumps. In some implementations, the air handling unit has a cooling coil and a variable volume fan. In some implementations, direct expansion (DX) cooling systems comprise compressors, evaporators and air-cooled, water-cooled or evaporatively-cooled condensing systems. Such systems can be controlled to reduce energy waste, improve occupant comfort and/or improve the thermal characteristics of the process cooling unit. The cooling system further comprises a control system which is configured to evaluate a cooling load value at the air handling unit and use the cooling load value to calculate at least one operational setpoint. The operational setpoint may advantageously be selected to improve the energy efficiency of the overall cooling system.
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Citations
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References
Patent
Networked facilities management system
Gregory A. Pascucci,David E. Rasmussen,Gaylon M. Decious,James R. Garbe,Susan M. Hyzer,Karen L. Woest,Vairavan Vairavan,David L. Koch,Donald A. Gottschalk,Dennis E. Burkhardt,Darrell E. Standish,Paul W. Madaus,Dan J. Spacek,Clay G. Nesler,James K. Stark,Otto M. Mageland,Robert R. Singers,Michael E. Wagner +17 more
- 25 Jan 1991
TL;DR: In this article, a networked system having a wide variety of applications and particularly applicable to facilities management systems has multiple levels of software in processing nodes, including a "features" processing level which communicates requests for data to a software object level containing databases of processes and attributes and database managers.
285
Patent
Fluid and gas supply system
Edward C. Garvey,Donald D. Onorati +1 more
- 14 Jul 1999
TL;DR: In this article, a fluid or gas delivery system consisting of single or double control valves for regulating flow of a first fluid and a second fluid from corresponding first and second fluid sources into a mixing port is provided.
210
Patent
Control apparatus and method for maximizing energy saving in operation of HVAC equipment and the like
Hugues De Milleville
- 09 Apr 1997
TL;DR: In this article, a multi-function energy management system has a plurality of predetermined operating programs stored in memory in or around a micro controller, which can be pre-set to operate the heating, ventilation, air conditioning and other operating devices according to selected ones of such operating programs for maintaining the temperature in a room of a building at a desired ambient temperature condition and other loads at various operating conditions.
169
Patent
Method and apparatus for cooling
Ozan Tutunoglu,John H. Bean +1 more
- 11 May 2009
TL;DR: In this paper, a method of calculating net sensible cooling capacity of a cooling unit is proposed, which includes measuring a discharge pressure from of fluid from a compressor and a suction pressure from an evaporator.
167
Patent
Wireless communication system for air distribution system
Alan D. Rein,David M. Foye +1 more
- 24 Sep 1992
TL;DR: In this article, a hierarchical control system including a central receiver, a first communications medium, and a controller operably connected to the central receiver by the first communication medium is presented, which includes a sensor (58) for sensing conditions; a second communications medium; and a transmitter (65) for transmitting the sensed conditions from the sensor to the center receiver via the second communications Medium.
161