US 5,103,896 AGranted

Air-conditioning system and operation method thereof

AssigneeKabushiki Kaisha Toshiba

InventorHideo Saga

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Abstract

An air conditioning for a room of a high-rise building, for example, is carried out in consideration of the difference in temperatures in a central interior zone and a circumferential perimeter zone of the room changeably to heating and cooling in accordance with an operation mode and a room temperature set point. In the actual air conditioning, a room temperature in the interior zone is first set and an actual room temperature in the perimeter zone is detected. The set room temperature in the interior zone is compared with the detected room temperature in the perimeter zone to thereby select an operation mode (heating or cooling) of air conditioning of the perimeter zone by an operation mode selecting unit. A correction value of the room temperature in the perimeter zone is calculated in accordance with operation modes in the interior and perimeter zones and a room temperature in the perimeter zone is set by adding the correction value to the set room temperature in the interior zone, and supplying the set room tempertures in the interior and perimeter zone to an air conditioning body of the air conditioning system through air supply units into the interior zone and the perimeter zone, respectively.

An air conditioning system for air-conditioning a central interior zone and a circumferential perimeter zone of a room changeably between a heating mode and a cooling mode in accordance with an operation mode and a room temperature set point, the air conditioning system comprising:

a first setting means for setting a room temperature in the interior zone;
a first detecting means for detecting the room temperature in the interior zone;
a first regulating means operatively connected to the first room temperature setting and detecting means for regulating an air conditioning operation in the interior zone;
a first air supply means operatively connected to the first room temperature regulating means for supplying an air into the interior zone in accordance with the regulated air conditioning operation;
a second setting means for setting a room temperature in the perimeter zone;
a second detecting means for detecting the room temperature in the perimeter zone;
a second regulating means operatively connected to the second room temperature setting and detecting means for regulating a air conditioning operation in the perimeter zone, said second room temperature regulating means operatively connected to the first room temperature regulating means;
an operation mode selecting means for selecting an operation mode of the perimeter zone by comparison of the detected room temperature in the perimeter zone with the set room temperature in the interior zone;
a correction value setting means operatively connected to the second room temperature setting means for applying a correction value preliminarily stored therein in accordance with an operation mode of the interior zone and an operation mode of the perimeter zone selected by the operation mode selecting means;
and
a second air supply means operatively connected to the second room temperature regulating means for supplying an air into the perimeter zone in accordance with the regulated air conditioning operation.

8 more elements

Facts

Application

07/679,097Filed 2 Apr 1991

Priority

JP 2-849402 Apr 1990

Granted

14 Apr 1992

Term ends

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Classification9 codes

F24F 3/0522
Multiple duct systems, e.g. systems in which hot and cold air are supplied by separate circuits from the central station to mixing chambers in…
F24F 11/64
Electronic processing: using pre-stored data
F24F 11/65
Electronic processing: for selecting an operating mode
F24F 11/72
Control systems characterised by their outputs; Constructional details thereof: for controlling the supply of treated air, e.g. its pressure

Abstract

Claims6