System and method for estimating energy consumption of an hvac system

Patent metadata

Field	Value
Publication number	US-2016290670-A1
Application number	US-201615070897-A
Country	US
Kind code	A1
Filing date	Mar 15, 2016
Priority date	Mar 30, 2015
Publication date	Oct 6, 2016
Grant date	—

Abstract

A system and method for estimating energy consumption in an HVAC system, the method including the steps of determining a system characteristic value, obtaining an operational condition value, determining a base power consumption value based at least in part on the system characteristic value and the operational condition value, determining an operational run time for the system, and determining an estimated energy consumption based at least in part on the operational run time and the base power consumption value.

First claim

What is claimed is:

1 . A method for determining energy consumption in an HVAC system comprising:
(a) determining a system characteristic value; (b) obtaining an operational condition value; (c) determining a base power consumption value based at least in part on the system characteristic value and the operational condition value; (d) determining an operational run time for the system; and (e) determining an estimated energy consumption based at least in part on the operational run time and the base power consumption value.

2 . The method of claim 1 , further comprising:
(f) displaying the estimated energy consumption.

3 . The method of claim 1 , wherein step (a) comprises accessing a secondary source to obtain the system characteristic value.

4 . The method of claim 1 , wherein the system characteristic value is based at least in part on at least one component characteristic values.

5 . The method of claim 1 , wherein the operational condition value comprises at least one of an incoming heat exchange fluid temperature value, an outdoor air temperature value, and a soil temperature value.

6 . The method of claim 5 , wherein step (b) comprises operating a sensor to measure the operational condition value.

7 . The method of claim 5 , wherein step (b) comprises accessing a secondary source to obtain at least one of the outdoor air temperature value and the soil temperature value.

8 . The method of claim 7 , wherein the incoming heat exchange fluid temperature value is obtained by estimating the incoming heat exchange fluid temperature value based at least in part on at least one of the outdoor air temperature value and the soil temperature value.

9 . The method of claim 8 , wherein the soil temperature value is estimated based at least in part on the outdoor air temperature value.

10 . The method of claim 9 , wherein step (c) further comprises selecting an installation configuration from a group consisting of: horizontal loop and vertical loop.

11 . The method of claim 10 , wherein the soil temperature is obtained from the secondary source based at least in part on the installation configuration and a geographic location of the system.

12 . The method of claim 7 , wherein the outdoor temperature value obtained from the secondary source is based at least in part on a geographic location of the system.

13 . An HVAC system comprising:
at least one HVAC component including at least one component characteristic; a controller in electrical communication with the at least one HVAC component; wherein the controller is configured to:
(a) determine a system characteristic value based at least in part on the at least one component characteristic;
(b) obtain an operational condition value;
(c) determine a base power consumption value based at least in part on the system characteristic value and the operational condition value;
(d) determine an operational run time for the system; and
(e) determine an estimated energy consumption based at least in part on the operational run time and the base power consumption value.

14 . The system of claim 13 , wherein the controller is further configured to display the estimated energy consumption.

15 . The system of claim 13 , wherein the system further comprises a sensor in communication with the controller, the sensor configured to measure the operational condition value.

16 . The system of claim 13 , wherein the controller further includes a communication device, the communication device is configured to exchange information with a secondary source.

17 . The system of claim 13 , wherein the operational condition value comprises an incoming heat exchange fluid temperature value.

18 . The system of claim 13 , wherein the operational condition value comprises an outdoor air temperature value.

19 . The system of claim 18 , wherein the controller is further configured to transmit the estimated energy consumption to an external device.

20 . The system of claim 13 , wherein the system characteristic value is stored at a secondary source.

Assignees

• Carrier Corp

Inventors

• Dempsey Daniel J
• Shah Rajendra K

Classifications

• F24F11/47

  Responding to energy costs · CPC title

• G01R22/061 Primary

  Details of electronic electricity meters · CPC title

• G01R22/10

  using digital techniques · CPC title

• G05B15/02

  electric · CPC title

• F24F11/006 Primary

  Mechanical Engineering · mapped topic