GB2617510A - Dynamic ventilation control for a building - Google Patents

Dynamic ventilation control for a building Download PDF

Info

Publication number
GB2617510A
GB2617510A GB2310709.7A GB202310709A GB2617510A GB 2617510 A GB2617510 A GB 2617510A GB 202310709 A GB202310709 A GB 202310709A GB 2617510 A GB2617510 A GB 2617510A
Authority
GB
United Kingdom
Prior art keywords
ventilation
building space
building
hvac system
outdoor air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
GB2310709.7A
Inventor
Gupta Bhavesh
Sharma Manish
Ranjan Prabhat
Krishnasamy Balaji
Gupta Vishwanath
Balakrishna Banuprakash
Ghosh Surjayan
Kumar Navneet
Sandeep Deepika
Khandelwal Shubham
Aggarwal Kanchan
Mathur Harsha
Vellala Yashwanth
Brahmajosyula Jagadeesh
Pal Rohil
Pandey Rahul
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honeywell International Inc
Original Assignee
Honeywell International Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US17/571,009 external-priority patent/US20220228756A1/en
Application filed by Honeywell International Inc filed Critical Honeywell International Inc
Publication of GB2617510A publication Critical patent/GB2617510A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/0001—Control or safety arrangements for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/46—Improving electric energy efficiency or saving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2120/00—Control inputs relating to users or occupants
    • F24F2120/10—Occupancy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/40—Damper positions, e.g. open or closed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/60—Energy consumption

Abstract

Appropriate ventilation for a building space while maintaining building comfort includes tracking one or more interior environmental conditions within the building space and one or more exterior environmental conditions outside of the building space during operation of the HVAC system. An environmental model for the building space is learned over time based at least in part on these tracked environmental conditions, where the environmental model predicts an environmental response of the building space to operation of the HVAC system under various interior and exterior environmental conditions. An appropriate ventilation rate that maintains adherence to one or more comfort parameters of the building space is determined by using the environmental model of the building space. The outdoor air ventilation damper of the HVAC system is controlled to provide appropriate ventilation.

Claims (15)

What is claimed is:
1. A method for providing dynamic ventilation for a building space serviced by a Heating, Ventilating and Air Conditioning (HVAC) system with one or more components including an outdoor air ventilation damper, the method comprising: selecting a ventilation mode from a plurality of ventilation modes, wherein the plurality of ventilation modes comprises: a health ventilation mode that when selected attempts to maximize ventilation to the building space subject to one or more constraints including a constraint of maintaining one or more comfort conditions in the building space; an energy savings ventilation mode that attempts to minimize energy consumed by the HVAC system to condition air supplied to the building space subject to one or more constraints including a constraint of maintaining one or more comfort conditions in the building space and a constraint to maintain IAQ contaminants in the building space below predetermined energy savings limits; and controlling one or more components of the HVAC system, including the outdoor air ventilation damper, in accordance with the selected ventilation mode
2. The method of claim 1, wherein the plurality of ventilation modes comprises: a productivity ventilation mode that when selected attempts to control ventilation to the building space to maintain IAQ contaminants in the building space below predetermined productivity limits
3. The method of any one of claims 1 or 2, wherein the plurality of ventilation modes comprises: a productivity mode that when selected attempts to minimize energy consumed by the HVAC system to condition air supplied to the building space subject to one or more constraints including a constraint of maintaining one or more comfort conditions in the building space and a constraint to maintain IAQ contaminants in the building space below predetermined productively limits, wherein at least one of the predetermined productively limits is below a corresponding one of the predetermined energy savings limits
4. The method of claim 1, wherein when the health ventilation mode is selected, controlling the one or more components of the HVAC system, including the outdoor air ventilation damper, comprises minimizing an overall cost associated with: a ventilation term for maximizing outdoor air ventilation to the building space; an energy term for minimizing energy associated with outdoor air ventilation to the building space; and a comfort term for penalizing a deviation from one or more comfort conditions in the building space
5. The method of claim 1, wherein when the energy savings ventilation mode is selected, controlling the outdoor air ventilation damper comprises minimizing an overall cost associated with: an energy term for minimizing energy associated with outdoor air ventilation to the building space; a comfort term that penalizes a deviation from one or more comfort conditions in the building space; and an Indoor Air Quality (IAQ) term that penalizes violations of one or more predetermined IAQ limits
6. A method for providing dynamic ventilation for a building space serviced by a Heating, Ventilating and Air Conditioning (HVAC) system with one or more components including an outdoor air ventilation damper, the method comprising: selecting a ventilation mode from a plurality of ventilation modes, wherein the plurality of ventilation modes comprises: a first ventilation mode that attempts to minimize energy consumed by the HVAC system to condition air supplied to the building space while maintaining one or more IAQ contaminants in the building space below one or more corresponding first predetermined limits; a second ventilation mode that attempts to minimize energy consumed by the HVAC system to condition air supplied to the building space while maintaining one or more IAQ contaminants in the building space below one or more corresponding second predetermined limits, wherein at least one of the second predetermined limits is below a corresponding one of the first predetermined limits; and controlling one or more components of the HVAC system, including the outdoor air ventilation damper, in accordance with the selected ventilation mode
7. A method for providing dynamic ventilation for a building space serviced by a Heating, Ventilating and Air Conditioning (HVAC) system with an outdoor air ventilation damper, the method comprising: developing a building model for the building space, the building model comprising a non-linear representation of how one or more environmental parameters associated with the building space is predicted to respond to changes in HVAC system operation under a plurality of different operating conditions; identifying a current operating condition; determining a linear approximation of the non-linear building model at the current operating condition, wherein the linear approximation approximates how one or more environmental parameters associated with the building space is predicted to respond to changes in HVAC system operation at the current operating condition; and controlling one or more components of the HVAC system, including the outdoor air ventilation damper, via Predictive Control (PC) using the determined linear approximation of the non-linear building model
8. The method of claim 7, further comprising: subsequently identifying a new operating condition; determining a new linear approximation of the non-linear building model at the new operating condition, wherein the linear approximation approximates how one or more environmental parameters associated with the building space is predicted to respond to changes in HVAC system operation at the new operating condition; and controlling one or more components of the HVAC system, including the outdoor air ventilation damper, via Predictive Control (PC) using the determined new linear approximation of the non-linear building model
9. The method of any one of claims 7 or 8, wherein controlling the outdoor air ventilation damper via Model Predictive Control (MPC) further comprises: predicting a future value for one or more Indoor Air Quality (IAQ) parameters in the building space using the determined linear approximation of the non-linear building model; and controlling one or more components of the HVAC system, including the outdoor air ventilation damper, to control the one or more IAQ parameters in the building space in accordance with one or more thresholds
10. The method of any one of claims 7 to 9, wherein controlling one or more components of the HVAC system, including the outdoor air ventilation damper, via Predictive Control (PC) using the determined linear approximation of the non- linear building model comprises: selecting a ventilation mode out of a plurality of ventilation modes, each ventilation mode having a different cost function; identifying the cost function for the selected ventilation mode; and controlling one or more components of the HVAC system, including the outdoor air ventilation damper, via Model Predictive Control (MPC), wherein the MPC minimized the identified cost function when controlling the one or more components of the HVAC system
11. The method of claim 7, wherein one of the plurality of ventilation modes comprises a health ventilation mode in which the Predictive Control (PC) maximizes ventilation to the building space subject to one or more constraints including a constraint of maintaining one or more comfort conditions in the building space
12. The method of claim 11, wherein the cost function for the health ventilation mode includes minimizing an overall cost associated with: a ventilation term for maximizing outdoor air ventilation to the building space; an energy term for minimizing energy associated with outdoor air ventilation to the building space; and a comfort term for penalizing a deviation from the one or more comfort conditions in the building space
13. The method of claim 7, wherein one of the plurality of ventilation modes comprises an energy savings ventilation mode in which the Predictive Control (PC) attempts to minimize energy consumed by the HVAC system to condition air supplied to the building space subject to one or more constraints including a constraint of maintaining one or more comfort conditions in the building space and a constraint to maintain IAQ contaminants in the building space below predetermined energy savings limits
14. The method of claim 13, wherein the cost function for the energy savings ventilation mode includes minimizing an overall cost associated with: an energy term for minimizing energy associated with outdoor air ventilation to the building space; a comfort term that penalizes a deviation from one or more comfort conditions in the building space; and an indoor air quality (IAQ) term that penalizes violations of one or more predetermined IAQ limits .
15. The method of claim 7, wherein one of the plurality of ventilation modes comprises a productivity ventilation mode in which the Predictive Control (PC) attempts to minimize energy consumed by the HVAC system to condition air supplied to the building space subject to one or more constraints including a constraint of maintaining one or more comfort conditions in the building space and a constraint to maintain IAQ contaminants in the building space below predetermined productively limits, wherein at least one of the predetermined productively limits is below a corresponding one of the predetermined energy savings limits.
GB2310709.7A 2021-01-14 2022-01-13 Dynamic ventilation control for a building Pending GB2617510A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US202163137526P 2021-01-14 2021-01-14
US17/571,009 US20220228756A1 (en) 2021-01-14 2022-01-07 Dynamic ventilation control for a building
US17/570,978 US11846440B2 (en) 2021-01-14 2022-01-07 Dynamic ventilation control for a building
PCT/US2022/070177 WO2022155660A1 (en) 2021-01-14 2022-01-13 Dynamic ventilation control for a building

Publications (1)

Publication Number Publication Date
GB2617510A true GB2617510A (en) 2023-10-11

Family

ID=80222336

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2310709.7A Pending GB2617510A (en) 2021-01-14 2022-01-13 Dynamic ventilation control for a building

Country Status (3)

Country Link
EP (1) EP4278136A1 (en)
GB (1) GB2617510A (en)
WO (1) WO2022155660A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100117409A (en) * 2009-04-24 2010-11-03 성균관대학교산학협력단 Building environmental control system and method through internet network
KR20110026580A (en) * 2009-09-08 2011-03-16 성균관대학교산학협력단 Ventilation system and control method thereof
WO2013107461A1 (en) * 2012-01-18 2013-07-25 Vkr Holding A/S Method and system for controlling ventilation in a building

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100117409A (en) * 2009-04-24 2010-11-03 성균관대학교산학협력단 Building environmental control system and method through internet network
KR20110026580A (en) * 2009-09-08 2011-03-16 성균관대학교산학협력단 Ventilation system and control method thereof
WO2013107461A1 (en) * 2012-01-18 2013-07-25 Vkr Holding A/S Method and system for controlling ventilation in a building

Also Published As

Publication number Publication date
EP4278136A1 (en) 2023-11-22
WO2022155660A1 (en) 2022-07-21

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