US 9,810,438 B2
Controlled hydronic distribution system
Nathan F. Rothman, Mercer Island, WA (US); and Ian Dempster, Seattle, WA (US)
Assigned to OPTIMUM ENERGY LLC, Seattle, WA (US)
Filed by OPTIMUM ENERGY, LLC, Seattle, WA (US)
Filed on Nov. 2, 2015, as Appl. No. 14/930,348.
Application 14/930,348 is a division of application No. 13/219,481, filed on Aug. 26, 2011, abandoned.
Prior Publication US 2016/0054009 A1, Feb. 25, 2016
Int. Cl. F24D 19/00 (2006.01); F24D 19/10 (2006.01); F04B 49/06 (2006.01); G05B 15/02 (2006.01); F04D 15/02 (2006.01); F24F 11/00 (2006.01); F25D 17/02 (2006.01)
CPC F24D 19/1033 (2013.01) [F04B 49/065 (2013.01); F24D 19/1012 (2013.01); F24D 19/1015 (2013.01); G05B 15/02 (2013.01); F04D 15/029 (2013.01); F24F 2011/0084 (2013.01); F25D 17/02 (2013.01); Y02B 30/745 (2013.01); Y10T 137/8158 (2015.04); Y10T 137/85978 (2015.04)] 4 Claims
OG exemplary drawing
 
1. A computer-readable medium on which are stored instructions that, when executed by a microprocessor, enable the microprocessor to perform a method of controlling a hydronic distribution system, the method comprising the steps of:
obtaining in real time, from one or more of a plurality of self-regulating valves arranged in a network, valve information characterizing the respective position of the one or more self-regulating valves and respective exit temperature of fluid passing through the one or more self-regulating valves;
determining from at least a portion of the valve information whether the position of one or more of the self-regulating valves is increasing;
if the position of one or more of the self-regulating valves is determined to be increasing, providing a signal to one or more pumps to increase the speed of the one or more pumps by an amount corresponding to the amount of increase of the position of the one or more self-regulating valves;
if the position of one or more of the self-regulating valves is determined to be not increasing, determining whether the position of the one or more valves is decreasing;
if the position of the one or more valves is decreasing, providing a signal to the one or more pumps to decrease the speed of the one or more pumps of a set of pumps by an amount corresponding to the amount of decrease of the position of the one or more self-regulating valves;
obtaining pump information from the one or more pumps;
(a) determining from at least a portion of the pump information whether it is more efficient to decrease a process set-point temperature;
(b) if it is determined to be more efficient to decrease a process set-point temperature, providing a signal to the system to decrease the process set-point temperature;
(c) if it is determined to be not more efficient to decrease a process set-point temperature, determining whether it is more efficient to increase the process set-point temperature;
(d) if it is determined to be more efficient to increase the process set-point temperature, providing a signal to the system to increase the process set-point temperature;
(e) if it is determined to be more efficient to increase the process set-point temperature, then repeating steps (a)-(d);
determining from the valve information and pump information whether a subset of pumps of the set of pumps should be brought online to increase the efficiency of the system;
if it is determined that a subset of pumps of the set of pumps should be brought online to increase the efficiency of the system, bringing the subset of pumps online;
determining from the valve information and pump information whether a subset of pumps of the set of pumps should be taken offline to increase the efficiency of the system; and
if it is determined that a subset of pumps of the set of pumps should be taken offline to increase the efficiency of the system, bringing the subset of pumps offline.