WO2022126222A1 - Procédé et système de gestion de confort thermique dans des environnements climatisés - Google Patents

Procédé et système de gestion de confort thermique dans des environnements climatisés Download PDF

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Publication number
WO2022126222A1
WO2022126222A1 PCT/BR2021/050567 BR2021050567W WO2022126222A1 WO 2022126222 A1 WO2022126222 A1 WO 2022126222A1 BR 2021050567 W BR2021050567 W BR 2021050567W WO 2022126222 A1 WO2022126222 A1 WO 2022126222A1
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WO
WIPO (PCT)
Prior art keywords
air
unit
thermal comfort
processing unit
temperature
Prior art date
Application number
PCT/BR2021/050567
Other languages
English (en)
Inventor
Bruno Eduardo MEDINA
Douglas Sozzi PACIFICO
Original Assignee
Robert Bosch Limitada
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
Application filed by Robert Bosch Limitada filed Critical Robert Bosch Limitada
Publication of WO2022126222A1 publication Critical patent/WO2022126222A1/fr

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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
    • F24F11/89—Arrangement or mounting of control or safety devices
    • 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
    • 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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B15/00—Systems controlled by a computer
    • G05B15/02—Systems controlled by a computer electric
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/26—Pc applications
    • G05B2219/2642—Domotique, domestic, home control, automation, smart house

Definitions

  • the present invention relates to a thermal comfort managing method and system in air-conditioned environments that can be applied, for example, in industrial, commercial or residential air conditioning apparatus, systems and devices.
  • the aforementioned method and system disclose a non-invasive solution that allows the management of thermal comfort in environments that have common air conditioning devices, and intercommunicates them so that they maintain a desirable standard temperature based on external ambient temperature and humidity, and that run in order to have a better energy efficiency.
  • the outlets or air conditioning units can be turned on and off by local users via remote or local control.
  • local users are also able to manually adjust the temperature and make other adjustments at their own discretion.
  • users can adjust the temperature to minimum values and well below or above the value recommended by governmental rules and regulations - where in Brazil this value is around 24 °C, for example.
  • users can turn on and set the temperature of the outlets or units well above 24 °C, while on hot days the temperatures can be set to 19 °C, for example.
  • a central cooling system from which the cold air made available by the units or local outlets comes from.
  • This central system is usually controlled by a PLC (“programmable logic controller”).
  • PLC programmable logic controller
  • This PLC controller defines the periods in which the central system will be turned on or off and the availability of energy in each air conditioning unit or outlet.
  • the control variations of this PLC controller are limited, as it is not able to act on the central cooling system in order to adjust a uniform temperature for all the plurality of air conditioning units or outlets.
  • the PLC controller is also not capable of automatically turning off or on each air conditioning unit or outlet individually. There is only the aforementioned programming of the time during which the PLC will allow energy to be made available to the air conditioning units or outlets. Thus, one can easily see the great dependence that these air conditioning systems have on the local temperature adjustment made by users.
  • Patent document FR3078770 describes a method of controlling mechanical ventilation that takes into account the temperature and humidity inside and outside a building where it is applied. This method does not offer an option for temperature control aimed at improving thermal comfort and energy efficiency in a system that uses air conditioning.
  • Another patent document is CN 107477809 which describes an air conditioner energy source management system that through the use of image detection if there are people in a certain place, and depending on the amount or absence, it turns on, off or adjusts the air-conditioning, and also manages electrical consumption through an electrical energy detector.
  • Such an invention requires a detector with advanced technology to enumerate the number of people in a given place, which makes the solution with a high cost to effectively manage the need to adjust the air conditioning, in addition to having a dedicated detector for electrical energy, which also makes the solution more expensive.
  • the present invention has as main object to reveal a method and system of thermal comfort management in air-conditioned environments that can be applied, for example, in industrial, commercial or residential air-conditioning apparatus, systems and devices.
  • the object of the present invention to provide a method and system for managing thermal comfort in air-conditioned environments that, in a non-invasive way, allows the management of thermal comfort in environments that have common air conditioning devices, and intercommunicates them to maintain a desirable temperature standard based on external ambient temperature and humidity [0016] Still, the object of the present invention is to reveal a method and system for managing thermal comfort in air-conditioned environments that enable better energy efficiency operating within desired temperature standards.
  • the method for managing thermal comfort in air-conditioned environments further comprises the fact that the step of correlating with operating conditions obtained from a storage unit by means of at least one processing unit consists of checking the start and end time of the air conditioning system's operating time.
  • a method which further comprises the fact that there is still an intermediate step between correlating with operating conditions obtained from a storage unit by means of at least one processing unit and setting and sending a setpoint value for at least one air-conditioning unit by means of at least one communication unit which comprises checking for human presence by means of at least one identification unit by means of a processing unit.
  • a method for managing thermal comfort in air-conditioned environments comprises the fact that the method is carried out periodically with a defined period in the processing unit.
  • the method for managing thermal comfort in air-conditioned environments comprises the fact that there is also a step of activating dry contact switches in at least one input and output device by means of a processing unit according to the operating conditions and the set temperature.
  • the method further comprises the fact that it is performed in a thermal comfort management system in air-conditioned environments which is provided with: at least one processing unit, at least one temperature tag, at least one humidity tag, at least one storage unit, at least one communication unit and at least one air conditioning unit.
  • the thermal comfort management system in air-conditioned environments comprises: at least one processing unit, at least one temperature tag, at least one humidity tag, at least one unit of storage, at least one communication unit and at least one air conditioning unit.
  • the thermal comfort management system in air-conditioned environments additionally comprises the fact that it has at least one identification unit.
  • the present invention includes a thermal comfort management system in air-conditioned environments that also comprises the fact that it has at least one input and output device.
  • Figure 1 illustrates a thermal comfort management system in air- conditioned environments.
  • Figure 2 illustrates the heat index table
  • Figure 3 illustrates a thermal comfort management system used in a location with three rooms.
  • the thermal comfort management method in air-conditioned environments comprises the fact that it has the steps of: obtaining the external temperature data from at least one temperature tag unit 2 by means of at least one processing unit 1 , obtaining the external humidity data from at least one humidity tag unit 3 by means of at least one processing unit 1 ; processing and correlating the obtained data and obtaining a heat index; correlating with operating conditions obtained from a storage unit 4 by means of at least one processing unit 1 and setting and sending a setpoint value to at least one air conditioning unit 6 by means of at least one communication unit 5.
  • Figure 1 illustrates a system with the necessary characteristics to carry out the steps of, using a communication unit 5 with the same characteristics for association between the different entities involved.
  • Processing unit 1 By obtaining the external temperature data of at least one temperature tag unit 2 through at least one processing unit 1 , the first parameters necessary to calculate the heat index of the external environment to which the air conditioning will act are acquired.
  • Processing unit 1 which is generally provided with processors, internal memory and physical interface, associated with temperature tag unit 2 physically, or through a cabling using analog or digital communication protocols (such as CAN communication, profibus, etc.), or through wireless communication protocols (such as wi-fi, bluetooth, NFC, LoRA, etc.), acquires the signals and carries out the signal processing and thus makes the necessary calculations available.
  • analog or digital communication protocols such as CAN communication, profibus, etc.
  • wireless communication protocols such as wi-fi, bluetooth, NFC, LoRA, etc.
  • the association of the processing unit 1 with the temperature tag unit 2 can be done through a communication unit 5 which has characteristics as described.
  • the temperature tag unit 2 can be any sensor, transducer, or any device capable of measuring temperature and transforming it into electrical signals, so that the temperature can be obtained in degrees Celsius or in Fahrenheit.
  • the necessary humidity parameters to calculate the heat index are acquired from the external environment to which the air conditioning will act.
  • processing unit 1 can perform this step locally, remotely or even “in the cloud” when the information is made available on the world wide web.
  • the association of the processing unit 1 with the humidity tag unit 3 can be done through a communication unit 5 which has characteristics as described.
  • the humidity tag unit 3 can be any sensor, transducer, or any device capable of measuring humidity and transforming it into electrical signals so that the relative humidity of the air in % can be obtained.
  • the processing unit 1 When processing and correlating the obtained data and obtaining a heat index, the processing unit 1 performs the calculation of the heat index with the obtained signals.
  • the heat index aims to determine the effect of the relative humidity over the apparent air temperature , defining the intensity of heat that a person feels, varying as a function of temperature and humidity.
  • humans have sweat as a heat loss mechanism, which evaporates with the heat of the skin and thus lowers its temperature, water in the form of vapor floating in the air reduces the rate of evaporation of sweat from the skin, and thus causes one person feels more heat in an environment with high relative humidity than another person in a dry environment of the same temperature.
  • This index was created by the NOAA (“National Oceanic and Atmospheric Administration”) which is an institution linked to the US government and part of the US Department of Commerce.
  • NOAA National Oceanic and Atmospheric Administration
  • T indicates the temperature in degrees Celsius and the R the relative humidity of the air in percentage
  • the coefficients to c 9 have predetermined fixed values.
  • the table in figure 3 demonstrates the values found, and is divided into caution classification for temperatures between 27 °C and 32 °C, extreme caution for temperatures between 32 °C and 41 °C, danger for temperatures between 41 °C and 54 °C and extreme hazard for temperatures above 54 °C.
  • Figure 2 shows the heat index table obtained with temperature data in degrees Celsius and relative humidity in percentage.
  • the processing unit 1 identifies pre-defined operating parameters, such as operating hours linked to the working hours of the building or other conditions such as pre-work cooling, meeting hours, use of a particular site during some period of the day.
  • pre-defined operating parameters such as operating hours linked to the working hours of the building or other conditions such as pre-work cooling, meeting hours, use of a particular site during some period of the day.
  • the processing unit 1 can be physically associated with it, as a memory cell, or remotely through a physical cabling connection using analog or digital communication protocols (such as CAN communication, profibus, etc), or via wireless communication protocols (such as wi-fi, bluetooth, NFC, LoRa, etc.).
  • analog or digital communication protocols such as CAN communication, profibus, etc
  • wireless communication protocols such as wi-fi, bluetooth, NFC, LoRa, etc.
  • processing unit 1 can perform this step locally, remotely or even “in the cloud” when the information is made available on the world wide web.
  • the association of the processing unit 1 with the storage unit 4
  • the processing unit 1 Upon setting and sending a setpoint value to at least one air conditioning unit 6 via at least one communication unit 5, the processing unit 1 correlates the heat index with the operating conditions and sets and sends a setpoint value, which can be physically associated with the air conditioning unit 6, directly in the electronic circuit, or remotely via infrared light commands (IR or "infrared"), or by physical cabling connection using analog or digital communication protocols (such as CAN communication, profibus, etc.), or via wireless communication protocols (such as wi-fi, bluetooth, NFC, LoRA, etc.).
  • the air conditioning unit 6, upon receiving the desired setpoint is responsible for maintaining that temperature, using its own temperature monitoring devices and its own operating schedule.
  • the thermal comfort management method in air-conditioned environments also comprises the fact that the step of correlating with operating conditions obtained from a storage unit 4 by means of at least one processing unit 1 consists of checking the start and end time of the air conditioning system's operating time 6.
  • the operating time can be linked to the working time of the people in the building or other conditions such as pre-work cooling, meeting hours, use of a certain place during some period of the day, place where temperature-sensitive equipment is kept, etc.
  • the thermal comfort managing method in air-conditioned environments also comprises the fact that there is still an intermediate step between correlating with operating conditions obtained from a storage unit 4 by means of at least one storage unit via at least one processing unit 1 and defining and sending a setpoint value to at least one air conditioning unit 6 by means of at least one communication unit 5 which comprises checking for human presence by means of at least one identification unit 7 by means of a processing unit 4.
  • the processing unit 1 identifies whether the operation of the air conditioning 6 is necessary depending on the verified conditions of heat index and operating conditions, which depending on the site can be chosen to turn off for a pre-determined period or remain in operation with a standard temperature for empty site.
  • the thermal comfort management method in air- conditioned environments also comprises the fact that it is performed periodically with a defined period in the processing unit 1.
  • the user can prioritize a temperature reset rate that prioritizes a quick response to maintain thermal comfort or maintain values within the thermal comfort range for a longer time, prioritizing the system's energy expenditure.
  • CBE Center for the Built Environment
  • AIRAH Australian Institute of Refrigeration, Air Conditioning and Heating
  • the energy consumption associated with the air conditioner or heater can vary by around 10 percent.
  • the thermal comfort management method in air-conditioned environments also comprises the fact that there is also a step that comprises activating dry contact switches in at least one input and output device 8 through a unit processing 1 according to the operating conditions and the set temperature.
  • the input and output device 8 can be a relay dry contact drive device or any other device that can drive open and closed logic gates, which can be physically associated with processing unit 1 or remotely through a physical connection of cabling using analog or digital communication protocols (such as CAN communication, profibus, etc.), or through wireless communication protocols (such as wi-fi, bluetooth, NFC, LoRa, etc.), being able to do this command locally, remotely or even “in the cloud” when the information is made available on the worldwide web of computers.
  • analog or digital communication protocols such as CAN communication, profibus, etc.
  • wireless communication protocols such as wi-fi, bluetooth, NFC, LoRa, etc.
  • the association of the processing unit 1 with an input and output device 8 can be done through a communication unit 5 which has characteristics as described.
  • the method defines, depending on the operating and temperature conditions, whether or not it turns on an exhaust, for example, every time the air conditioning 6 is turned off because it is outside the operating time, it activates the hood in order to circulate the air inside the room.
  • Figure 3 exemplifies a construction with three sites, each with a processing unit 1 associated with a storage unit 4, obtaining temperature and humidity information from a temperature tag unit 2 and a humidity tag unit 3 that are positioned on the outside of the building, all communicating through a communication unit 5.
  • Communication unit 5 is also responsible for sending the setpoint to air conditioning units 6.
  • the three sites have an identification unit 7 to identify the presence or absence of people, in order to help managing thermal comfort and enable better energy management, also associated with a communication unit 5 to transmit information.
  • One of the sites has an input and output device 8 also associated with a communication unit 5 to receive activation commands and thus associating an exhaust fan when necessary, since this room is sensitive to the lack of air circulation.
  • the thermal comfort management method in air-conditioned environments further comprises the fact that it is performed in a thermal comfort management system in air-conditioned environments which is provided with: at least one processing unit 1 , at least one temperature tag 2, at least one humidity tag 3, at least one storage unit 4, at least one communication unit 5 and at least one air conditioning unit 6.
  • the thermal comfort management system in air-conditioned environments comprises: at least one processing unit 1 , at least one temperature tag 2, at least one humidity tag 3, at least one storage 4, at least one communication unit 5 and at least one air conditioning unit 6.
  • the thermal comfort management system in air-conditioned environments further comprises at least one identification unit 7.
  • the thermal comfort management system in air-conditioned environments also comprises at least one input and output device 8.
  • the above description has the sole purpose of describing, by way of example, the particular embodiment of the invention in question. Therefore, it becomes clear that modifications, variations and constructive combinations of elements that perform the same function in substantially the same way to achieve the same results, remain within the scope of protection delimited by the appended claims.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

La présente invention concerne un procédé et un système de gestion de confort thermique dans des environnements climatisés qui peuvent être appliqués, par exemple, dans un appareil, des systèmes et des dispositifs de climatisation industriels, commerciaux ou résidentiels. Le procédé et le système susmentionnés divulguent une solution non invasive qui permet la gestion du confort thermique dans des environnements qui ont des dispositifs de climatisation communs et qui les met en communication de sorte qu'ils maintiennent une température standard souhaitable sur la base de la température ambiante externe et de l'humidité et qu'ils fonctionnent dans le but d'avoir un meilleur rendement énergétique.
PCT/BR2021/050567 2020-12-18 2021-12-20 Procédé et système de gestion de confort thermique dans des environnements climatisés WO2022126222A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR102020026026-0A BR102020026026A2 (pt) 2020-12-18 2020-12-18 Método e sistema de gerenciamento de conforto térmico em ambientes com ar-condicionado
BRBR1020200260260 2020-12-18

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WO2022126222A1 true WO2022126222A1 (fr) 2022-06-23

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1279902A2 (fr) * 2001-07-25 2003-01-29 Lg Electronics Inc. Procédé et dispositif de la commande du fonctionnement d'un appareil de climatisation
US20100025483A1 (en) * 2008-07-31 2010-02-04 Michael Hoeynck Sensor-Based Occupancy and Behavior Prediction Method for Intelligently Controlling Energy Consumption Within a Building
US20110313579A1 (en) * 2010-05-25 2011-12-22 Cheuk Ting Ling Method for Energy Saving On Electrical Systems Using Habit Oriented Control
EP2206983B1 (fr) * 2008-12-26 2012-10-24 LG Electronics Inc. Climatiseur et procédé de fonctionnement correspondant
US20150013958A1 (en) * 2012-02-23 2015-01-15 Mitsubishi Electric Corporation Air-conditioning system
US20160161137A1 (en) * 2014-12-04 2016-06-09 Delta Electronics, Inc. Controlling system for environmental comfort degree and controlling method of the controlling system
US20170051937A1 (en) * 2014-05-09 2017-02-23 Mitsubishi Electric Corporation Air-conditioning ventilation system
FR3078770A1 (fr) * 2018-03-12 2019-09-13 Frederic Balme Procede pour le pilotage domotique d’un batiment et dispositif pour la mise en œuvre du procede
KR20200063328A (ko) * 2018-11-21 2020-06-05 주식회사 트리톤넷 사물인터넷과 클라우드를 기반으로 하는 실내 공기질 개선 시스템
US20200300489A1 (en) * 2017-06-01 2020-09-24 Mitsubishi Electric Corporation Air-conditioning system

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1279902A2 (fr) * 2001-07-25 2003-01-29 Lg Electronics Inc. Procédé et dispositif de la commande du fonctionnement d'un appareil de climatisation
US20100025483A1 (en) * 2008-07-31 2010-02-04 Michael Hoeynck Sensor-Based Occupancy and Behavior Prediction Method for Intelligently Controlling Energy Consumption Within a Building
EP2206983B1 (fr) * 2008-12-26 2012-10-24 LG Electronics Inc. Climatiseur et procédé de fonctionnement correspondant
US20110313579A1 (en) * 2010-05-25 2011-12-22 Cheuk Ting Ling Method for Energy Saving On Electrical Systems Using Habit Oriented Control
US20150013958A1 (en) * 2012-02-23 2015-01-15 Mitsubishi Electric Corporation Air-conditioning system
US20170051937A1 (en) * 2014-05-09 2017-02-23 Mitsubishi Electric Corporation Air-conditioning ventilation system
US20160161137A1 (en) * 2014-12-04 2016-06-09 Delta Electronics, Inc. Controlling system for environmental comfort degree and controlling method of the controlling system
US20200300489A1 (en) * 2017-06-01 2020-09-24 Mitsubishi Electric Corporation Air-conditioning system
FR3078770A1 (fr) * 2018-03-12 2019-09-13 Frederic Balme Procede pour le pilotage domotique d’un batiment et dispositif pour la mise en œuvre du procede
KR20200063328A (ko) * 2018-11-21 2020-06-05 주식회사 트리톤넷 사물인터넷과 클라우드를 기반으로 하는 실내 공기질 개선 시스템

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