SYSTEM AND METHOD FOR CALCULATING THE THERMAL MASS OF A BUILDING
First Claim
1. A system for calculating a value for the effective thermal mass of a building comprising:
- at least one HVAC control system that receives temperature measurements from at least a first location conditioned by at least one HVAC system, and receives status of said HVAC system;
one or more databases that store at least said temperature measurements from said first location over time; and
one or more processors that receive outside temperature measurements associated with outside temperatures from at least one source other than said HVAC system and compare said temperature measurements from said first location with expected temperature measurements wherein the expected temperature measurements are based at least in part upon past temperature measurements and said outside temperature measurements, wherein the one or more processors are configured to calculate one or more rates of change in temperature measurements at said first location and wherein the one or more processors are further configured to relate said calculated rates of change to said outside temperature measurements.
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Accused Products
Abstract
The invention comprises a system for calculating a value for the effective thermal mass of a building. The climate control system obtains temperature measurements from at least a first location conditioned by the climate system. One or more processors receive measurements of outside temperatures from at least one source other than the control system and compare the temperature measurements from the first location with expected temperature measurements. The expected temperature measurements are based at least in part upon past temperature measurements obtained by said HVAC control system and said outside temperature measurements. The processors then calculate one or more rates of change in temperature at said first location.
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Citations
20 Claims
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1. A system for calculating a value for the effective thermal mass of a building comprising:
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at least one HVAC control system that receives temperature measurements from at least a first location conditioned by at least one HVAC system, and receives status of said HVAC system; one or more databases that store at least said temperature measurements from said first location over time; and one or more processors that receive outside temperature measurements associated with outside temperatures from at least one source other than said HVAC system and compare said temperature measurements from said first location with expected temperature measurements wherein the expected temperature measurements are based at least in part upon past temperature measurements and said outside temperature measurements, wherein the one or more processors are configured to calculate one or more rates of change in temperature measurements at said first location and wherein the one or more processors are further configured to relate said calculated rates of change to said outside temperature measurements. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system for calculating a value for the operational efficiency of an HVAC system comprising:
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at least one HVAC control system that receives temperature measurements from at least a first location conditioned by at least one HVAC system, and receives status of said HVAC system; one or more databases that store at least said temperatures measured at said first location over time; and one or more processors that receive outside temperature measurements from at least one source other than said HVAC system and compare said temperature measurements from said first location with expected temperature measurements wherein the expected temperature measurements are based at least in part upon past temperature measurements and said outside temperature measurements, wherein said one or more processors are configured to calculate one or more rates of change in temperature at said first location for periods during which the status of the HVAC system is “
on” and
wherein said one or more processors are further configured to calculate one or more rates of change in temperature at said first location for periods during which the status of the HVAC system is “
off”
, and to relate said calculated rates of change to said outside temperature measurements - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method for calculating a value for the operational efficiency of an HVAC system comprising:
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storing over time, temperature measurements from at least a first location conditioned by at least one HVAC system; calculating one or more rates of change in temperature at said first location for periods during which the status of the HVAC system is “
on”
;calculating one or more rates of change in temperature at said first location for periods during which the status of the HVAC system is “
off”
;relating said calculated rates of change to outside temperature measurements from a location other than said first location; determining with a computer processor, expected temperature measurements based at least in part upon said calculated rates of change and based at least in part on one or more outside temperature measurements obtained from said location other than said first location, - View Dependent Claims (16, 17, 18, 19, 20)
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Specification