Heat exchange – With alarm – indicator – signal – register – recorder – test or...
Reexamination Certificate
2006-07-04
2006-07-04
Ford, John K. (Department: 3753)
Heat exchange
With alarm, indicator, signal, register, recorder, test or...
C165S299000, C165S300000, C165S295000, C165S301000, C165S292000, C165S293000, C165S236000, C374S042000, C374S041000, C374S040000, C374S039000, C236S07800D, C236S07800D
Reexamination Certificate
active
07069976
ABSTRACT:
Process and device for controlling the temperature of an outbound secondary flow in a secondary circuit from a heat exchanger by a primary flow in a primary circuit, via a member that regulates the primary flow, influenced by a control unit. The enthalpy difference between inbound and outbound primary flow to and from the heat exchanger and the secondary flow are determined. The flow in the primary circuit is determined, and the parameters are supplied to the control unit for controlling the member, whereby the primary flow is controlled in dependence of the secondary flow, so that power supplied to the heat exchanger substantially equals the sum of the power needed to raise the temperature of the secondary flow from the initial temperature to the desired outbound temperature; the assumed power requirement for compensating for energy stored in the heat exchanger; and the assumed leak power from the heat exchanger.
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Ford John K.
Young & Thompson
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