Title:
COMPUTING APPARATUS FOR STORED HEAT QUANTITY
Document Type and Number:
Japanese Patent JPH05288615
Kind Code:
A
Abstract:
PURPOSE:To enable the monitoring of a stored heat quantity accurately without much cost by providing a temperature sensor at an intermediate position within a heat storage vessel to utilize measured values of this sensor and a heat quantity sensor. CONSTITUTION:A temperature sensor 4 measures the temperature of water at an intermediate position within a heat storage vessel 1 and a signal thereof is inputted into a stored heat quantity computing section 7 of a controller 6 for controlling a heat source. A heat quantity sensor 5 determines a consumed heat quantity by a heat load 2 from a temperature difference between the inlet side cool water and the outlet side cool water of a heat medium for the load 2 to be sent to the arithmetic section 7 and a heat source control section 8. At the arithmetic section 7, computation is started when the temperature of water measured with the sensor 4 crosses a specified value to determine the current stored heat quantity of the heat storage vessel 1 by a specified formula from a supplied heat quantity calculated from the operation time of a refrigerator 3 and the consumed heat quantity by the sensor 5. A control section 8 takes in the current stored heat quantity to perform an operation and a control of the refrigerator 3 so that the stored heat quantity is kept at a specified value. In this manner, one water temperature sensor alone is enough to achieve the purpose. The stored heat quantity can be calculated accurately to control the operation of a heat source thereby enabling the monitoring of the stored heat quantity.
Inventors:
WADA YUKO
Application Number:
JP9076592A
Publication Date:
November 02, 1993
Filing Date:
April 10, 1992
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
G01K17/00; (IPC1-7): G01K17/00
Attorney, Agent or Firm:
Hidekazu Miyoshi (1 outside)