Title:
METHOD FOR CONTROLLING AND REGULATING HEAT PUMPS AND COOLING SYSTEMS
Document Type and Number:
WIPO Patent Application WO/2011/089116
Kind Code:
A3
Abstract:
The invention relates to a method for controlling and regulating the superheating temperature of a coolant in an evaporation device in the circuit of a plant system of a heat pump or cooling system, characterized in that an energy flow balance is formed for determining the target value for the controlled variable, wherein the virtual energy flow balance is formed such that the virtual energy flow balance is approximately proportional to the actual energy flow balance at all operating points of the heat pump or cooling system, in that a virtual heat output of the evaporation device is determined that is functionally dependent on the known parameters of superheating temperature, specific heat capacity of the coolant, and specific enthalpy in the saturated vapor condition, the stroke of the expansion valve, and a correction factor formed for each operating point of the expansion valve.
Inventors:
RAEHDER CHRISTIAN (DE)
Application Number:
PCT/EP2011/050611
Publication Date:
January 26, 2012
Filing Date:
January 18, 2011
Export Citation:
Assignee:
HONEYWELL TECHNOLOGIES SARL (CH)
RAEHDER CHRISTIAN (DE)
RAEHDER CHRISTIAN (DE)
International Classes:
F25B49/02; F25B41/06
Domestic Patent References:
| WO2008080436A1 | 2008-07-10 |
Foreign References:
| US5735134A | 1998-04-07 | |||
| US5966950A | 1999-10-19 | |||
| US4523435A | 1985-06-18 | |||
| DE3713869A1 | 1988-11-03 | |||
| DE19506143A1 | 1996-09-05 |
Attorney, Agent or Firm:
LESON, Thomas J.A. et al. (München, DE)
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