JP2011007366A - Air conditioning operation device and air conditioning operation method - Google Patents

Abstract

An air conditioning system in which a heat exchange type air conditioner and an outside air cooler are used together reduces problems caused by common use of an operation unit.
A control mode information acquisition unit 10 of an air conditioning operation device mainly includes a cooling mode mainly for a heat exchange air conditioner that executes room temperature control by increasing or decreasing an effect of the heat exchange air conditioner, and a heat exchange air conditioner. Is stopped, and only the effect of the outside air cooler is increased / decreased, and information indicating in which control mode of the complete outside air cooling mode in which the room temperature control is executed is acquired from the control device. The control mode presentation unit 11 presents the control mode being executed so that the resident can recognize it.
[Selection] Figure 2

Description

  The present invention relates to an air conditioning operation device that is used as a common operation unit of a heat exchange type air conditioner and an outside air cooler in an air conditioning system in which a heat exchange type air conditioner and an outside air cooler are used in combination.

  In the air conditioning control, for example, as shown in FIG. 6, individual air conditioners (for example, multi air conditioners for buildings) are installed for each room, and the resident uses the operation means such as a remote control to individually An air conditioning system for operating an air conditioner has been put into practical use (for example, see Patent Document 1). In the example of FIG. 6, heat exchange type individual air conditioners 101-1 and 101-2 are provided in the rooms 100-1 and 100-2, respectively. In FIG. 6, 102-1 and 102-2 are pipes for returning air (return air) from the rooms 100-1 and 100-2 to the individual air conditioners 101-1 and 101-2, and 103-1 and 103-2 are individual. Pipings 104-1 and 104-2 for supplying air (air supply) cooled or heated by the air conditioners 101-1 and 101-2 to the rooms 100-1 and 100-2 are air supply outlets. In such an air conditioning system, since the resident operates the individual air conditioner, many improvements and functions are added to the operation means and the display method for the operation as disclosed in Patent Document 1. Has been carried out.

  HMI (Human-Machine Interface) for individual air conditioners has evolved, and it has been proposed to realize individual air conditioning using an air conditioning interface for central air conditioning (see Patent Document 2).

JP 2003-148790 A JP 2008-101897 A

The central air conditioning system is configured to perform cooling using outside air (outside air cooling) in the winter when the outside air temperature is low.
In office buildings and the like, occupants and computers substantially become indoor heating products, so it is necessary to cool them during the daytime even in winter. The use of the outside air cooling is extremely effective from the viewpoint of energy saving because the outside air cooling that takes in the cold outside air and cools it can save the energy for cooling the air by an air conditioner or the like.

  Therefore, as shown in FIG. 7, a configuration in which the individual air conditioner and the outside air cooler are used in combination and the respective merits are utilized is conceivable. In FIG. 7, reference numeral 105 denotes an outside air cooler for introducing outside air into the room, 106 denotes outside air intakes, and 107-1 and 107-2 supply outside air sent from the outside air cooler 105 to the rooms 100-1 and 100-2. Pipes 108-1, 108-2 are outside air dampers for adjusting the supply amount of outside air, 109-1, 109-2 are outside air outlets, 110-1, 110-2 are rooms 100-1, 100-2. An indoor temperature sensor 111 for measuring the indoor temperature of the outdoor air temperature sensor 111 is an outdoor temperature sensor for measuring the outdoor air temperature.

  However, the HMI for an individual air conditioner is not an HMI for use with an outside air cooler. Therefore, separate operation units for the individual air conditioner and the outside air cooler are required. Actually, the operation unit should be shared, and substantially only the operation unit is shared. Therefore, it is necessary to reduce problems that occur due to the common use of only the operation unit. For example, there may be a difference in the appearance of a change in room temperature when the occupant changes the temperature setting depending on whether the cooling mode is based on the individual air conditioner or only the outside air cooler. However, since the resident cannot know in which control mode the room temperature control is performed, what is the reason why the effect of the indoor temperature change as expected cannot be obtained, or what time the indoor temperature change as expected There is a possibility of feeling uncomfortable, such as whether the effect is obtained.

  The same applies to the case where an AHU (Air Handling Unit) and an outside air cooler are used in the central air conditioning system. Since the AHU and the individual air conditioners are air conditioners that have a heat exchanging action on the air, they are hereinafter referred to as heat exchange type air conditioners in order to distinguish them from outside air coolers.

  The present invention has been made to solve the above problems, and in an air conditioning system in which a heat exchange type air conditioner and an outside air cooler are used in combination, an air conditioner that can reduce problems caused by the common use of an operation unit. An object is to provide an operating device and an air conditioning operation method.

The present invention is an air conditioning operation device in an air conditioning system in which a heat exchange type air conditioner and an outside air cooler are used in combination, and mainly performs heat exchange type air conditioning that executes room temperature control by increasing or decreasing the effect of the heat exchange type air conditioner. Whether the room temperature control is executed in either the main air conditioning mode or the complete outdoor air cooling mode in which the heat exchange type air conditioner is stopped and the effect of the outside air cooler is increased or decreased. It is characterized by comprising control mode information acquisition means for acquiring information to be shown, and control mode presentation means for presenting the control mode being executed so that the resident can recognize it.
The air conditioning operation device according to the present invention includes an outside air temperature information acquisition unit that acquires an outside air temperature measurement value, an indoor temperature information acquisition unit that acquires an indoor temperature measurement value, and an air conditioner state that acquires state information of the outside air cooler. From the information acquisition means, the temperature setting value change input means by which the resident can change the room temperature setting value, the outside air temperature measurement value, the room temperature measurement value, the state information of the outside air cooler, and the room temperature setting value, When the person changes the indoor temperature setting value, the outside air calculates an estimated value of the indoor temperature change time that is the time until the indoor temperature reaches the indoor temperature setting value after the change in the complete outdoor air cooling mode using only the outdoor air cooler It is characterized by comprising a cooling time change time estimated value calculating means and an outside air cooling time change time estimated value presenting means for presenting the indoor temperature change time estimated value so that a resident can recognize it.

Further, in one configuration example of the air-conditioning operation device of the present invention, the outside air cooling change time estimated value calculating means uses the estimated value of the indoor temperature in the complete outside air cooling mode when the outside air is taken in at the maximum outside air damper opening degree. It is calculated on the assumption that the indoor temperature change time estimated value is calculated based on the estimated value of the indoor temperature.
Further, in one configuration example of the air conditioning operation device of the present invention, the outside air cooling time change time estimated value calculation means calculates the room temperature change time estimated value by simulation based on a mathematical expression that sequentially calculates a room temperature change per unit time. Is calculated.
In one configuration example of the air conditioning operation device according to the present invention, the outside air cooling time change time estimated value calculation means calculates the maximum outdoor air damper opening degree and the time constant of the indoor temperature change in the complete outside air cooling mode and the indoor convergence temperature. And calculating the estimated value of the indoor temperature change time with respect to the changed indoor temperature setting value based on the time constant and the convergence temperature.

In addition, one configuration example of the air-conditioning operation device of the present invention further includes a control mode instruction input means that allows a resident to selectively specify a control mode, and a temperature setting value change that allows a resident to change a room temperature set value. Based on the input means, the control mode selection operation when the indoor temperature set value is changed, the temporary transition judgment means for judging whether or not the temporary control mode is transitioned, and the temporary transition judgment means temporarily And a return operation means for returning to the control mode before the temporary transition when the room temperature reaches the indoor temperature set value when it is determined that the transition to the general control mode is performed. is there.
In addition, according to one configuration example of the air-conditioning operation device of the present invention, the control mode instruction input means that allows the resident to selectively specify the control mode, and the selection of the control mode when the indoor temperature set value is changed Based on the operation, the temporary transition determination means for determining whether or not the transition to the temporary control mode is performed, and when the temporary transition determination means determines that the transition to the temporary control mode has occurred, the room temperature is the room temperature. Returning operation means for returning to the control mode before the temporary transition when reaching the set value is provided.

Further, according to the air conditioning operation method of the present invention, the air conditioning operation device of the air conditioning system in which the heat exchange type air conditioner and the outside air cooler are used together executes the room temperature control mainly by increasing / decreasing the effect of the heat exchange type air conditioner. Room temperature control is executed in either the cooling mode mainly for the heat exchange type air conditioner or the complete outside air cooling mode in which the heat exchange type air conditioner is stopped and the room temperature control is executed by increasing or decreasing only the effect of the outside air cooler. It is characterized by comprising a control mode information acquisition procedure for acquiring information indicating whether it is being performed, and a control mode presentation procedure for presenting the control mode being executed so that the resident can recognize it.
In addition, the air conditioning operation method of the present invention includes an outside air temperature information acquisition procedure in which an air conditioning operation device of an air conditioning system in which a heat exchange type air conditioner and an outside air cooler are used together acquires an outside air temperature measurement value, and an indoor temperature measurement value. Room temperature information acquisition procedure for acquiring indoor air conditioner status information acquisition procedure for acquiring outdoor air conditioner status information, indoor temperature set value acquisition procedure for acquiring indoor temperature set value changed by a resident, and the outside air When the occupant changes the indoor temperature setting value from the measured temperature value, indoor temperature measurement value, outdoor air conditioner status information, and indoor temperature setting value, the indoor temperature is changed in the complete outdoor air cooling mode using only the outdoor air cooling device. A procedure for calculating an estimated value of the indoor air temperature change time, which is a time until a subsequent indoor temperature set value is reached, so that a resident can recognize the estimated value of the indoor temperature change time It is characterized in further comprising a Shimesuru outdoor air cooling at the change time estimates presented procedure.

  According to the present invention, the information indicating whether the room temperature control is executed in the control mode of the heat exchange type air conditioner mainly cooling mode or the complete outside air cooling mode is acquired, and the resident recognizes the control mode being executed. By presenting in such a manner, it becomes easier for the resident to recognize the appearance of the change in the room temperature when the temperature setting is changed, so that the resident's discomfort can be alleviated.

  Further, in the present invention, when the occupant changes the indoor temperature setting value from the outdoor temperature measurement value, the indoor temperature measurement value, the outdoor air conditioner state information, and the indoor temperature setting value, the complete outdoor air cooling is performed only by the outdoor air cooling device. By calculating the estimated value of the indoor temperature change time, which is the time until the indoor temperature reaches the changed indoor temperature set value in the mode, and presenting the estimated value of the indoor temperature change time so that the resident can recognize it, Since it becomes easy for a person to recognize how the room temperature changes when the temperature setting is changed, the discomfort of the resident can be alleviated.

  Further, in the present invention, based on the control mode selection operation when the indoor temperature set value is changed, it is determined whether or not the transition to the temporary control mode is made, and the transition to the temporary control mode is determined. In addition, when the room temperature reaches the room temperature set value, it is possible to automatically return to the complete outdoor air cooling by returning to the control mode before the temporary transition, forgetting to return to the control mode emphasizing energy saving. Can be eliminated.

It is a block diagram which shows the structure of the air conditioning system which concerns on embodiment of this invention. It is a block diagram which shows the structure of the air-conditioning operation apparatus which concerns on embodiment of this invention. It is a figure which shows the simulation result of the indoor temperature change based on the indoor temperature change time estimated value calculation method of embodiment of this invention. It is a figure which shows the simulation result of the indoor temperature change based on the indoor temperature change time estimated value calculation method of embodiment of this invention. It is a figure which shows an example of the display and operation panel of the air-conditioning operation apparatus which concerns on embodiment of this invention. It is a figure which shows the structure of the conventional air conditioning system by only a heat exchange type air conditioner. It is a figure which shows the structure of the air conditioning system which uses a heat exchange type air conditioner and an external air cooler together.

[Principle of Invention 1]
Even when the heat exchange air conditioner and the outside air cooler are used in combination, the “individual temperature setting operation by the resident” that is specific to the method of using the heat exchange air conditioner is performed. However, since the resident cannot determine which heat exchange air conditioner or outside air cooler should be the main, it depends on the situation of the outside air temperature or the room temperature, etc. The processing device will automatically determine it. In this case, it is not necessary for the resident to know which of the heat exchange type air conditioner and the outside air cooler is the main subject of control (which control mode) in the cooling state.

  However, depending on whether the cooling mode is mainly a heat exchange type air conditioner or the complete outside air cooling mode using only the outside air cooler, a difference in the appearance of the indoor temperature change when the occupant changes the temperature setting may occur. The inventor feels that the effect of changing the indoor temperature as expected cannot be obtained for the resident when the difference in the appearance of the effect when the temperature setting is changed becomes significant, which may be uncomfortable for the resident. I focused on it. The resident recognizes how the effect of changing the temperature setting appears by displaying so that the resident can recognize whether the control mode is the cooling mode mainly of the heat exchange air conditioner or the complete outside air cooling mode. The idea was that it would be easier to do and alleviate residents' discomfort.

[Principle of Invention 2]
In complete outdoor air cooling that emphasizes energy saving, the cooling capacity changes depending on the outside air temperature, and it may be insufficient for the resident to simply inform the resident that the mode is the complete outdoor air cooling mode. Therefore, when the occupant changes the temperature setting, the estimated value of the indoor temperature change time, which is the time until the indoor temperature reaches the changed indoor temperature set value in the complete outdoor air cooling mode, is displayed so that the occupant can recognize it. It is preferable to do. Thereby, when using a heat exchange type air conditioner and an outside air cooler together, the sensation that the cooling performance changes unnaturally for the occupant can be reduced. Needless to say, if the use is considered, it is not necessary to use a highly accurate estimated change time value.

[Principle 3 of the invention]
If the occupant determines that the change in the indoor temperature when the temperature setting changes is slow when the occupant is completely outside air-cooled, an operating unit is provided to change the temperature by actively using a heat exchange air conditioner. When the air temperature reaches the indoor temperature set value, it is possible to maintain the satisfaction of the residents of the individual air conditioning by returning to the complete outdoor air cooling. In such a case, by automatically returning to the complete outdoor air cooling, there is no need to forget to return to the cooling state in which energy saving is important. Even in this case, it is easy for the resident to confirm by displaying so that the resident can recognize whether the control mode of the cooling mode mainly of the heat exchange type air conditioner or the complete outside air cooling mode is being executed. become.

[Embodiment]
Next, an embodiment of the present invention will be described. FIG. 1 is a block diagram showing a configuration of an air conditioning system according to an embodiment of the present invention. Since the arrangement of each component of the air conditioning system is as shown in FIG. 7, the air conditioning system of the present embodiment will be described using the reference numerals in FIG.
The air-conditioning operation devices 1-1 and 1-2 are installed in the rooms 100-1 and 100-2 shown in FIG. 7, respectively, and give instructions to the control device 2 by a resident's operation or automatic processing. Information is acquired from the control device 2.

  For example, the control device 2 controls the amount of cold water supplied to the heat exchanger of the heat exchange type air conditioner 101-1, the start / stop of the outside air cooler 105, the opening degree of the outside air damper 108-1, and the like. Control is performed so that the room temperature of the room 100-1 becomes the room temperature set value set by the air conditioning operation device 1-1. Similarly, the control device 2 controls the amount of cold water supplied to the heat exchanger of the heat exchange type air conditioner 101-2, start / stop of the outside air cooler 105, the opening degree of the outside air damper 108-2, and the like. Thus, the room temperature of the room 100-2 is controlled to be the room temperature set value set by the air conditioning operation device 1-2.

  The cooling mode of the air conditioning system is mainly controlled by increasing or decreasing the effect of the heat exchanger type air conditioner mainly by increasing or decreasing the effect of the heat exchange type air conditioner, and by increasing or decreasing only the effect of the outside air cooler. There are two complete outdoor air cooling modes for each room. In the cooling mode mainly including the heat exchange type air conditioner, the outside air cooler is also operating, but in the complete outside air cooling mode, only the outside air cooler is operating and the heat exchange type air conditioner is stopped.

  The control device 2 is a heat exchange type in consideration of the indoor temperature set value, the outside air temperature, the indoor temperature of the rooms 100-1 and 100-2, the energy consumption, etc. set by the air conditioning operation devices 1-1 and 1-2. Individual air conditioning for each room is performed by selecting a control mode of either the cooling mode mainly for the air conditioner or the complete outside air cooling mode for each room. It should be noted that which control mode the control device 2 selects is irrelevant to the essence of the invention and can be realized as appropriate, and thus detailed description regarding selection of the control mode is omitted.

  FIG. 2 is a block diagram showing the configuration of the air conditioning operation devices 1-1 and 1-2. Each of the air conditioning operation devices 1-1 and 1-2 includes a control mode information acquisition unit 10, a control mode presentation unit 11, an outside air temperature information acquisition unit 12, an indoor temperature information acquisition unit 13, and an air conditioner state information. An acquisition unit 14, an outside air cooling change time estimated value calculation unit 15, an outside air cooling change time estimated value presentation unit 16, a control mode instruction input unit 17, a temperature set value change input unit 18, and a temporary transition determination unit 19 and a return operation unit 20.

Hereinafter, the operation of the air conditioning operation devices 1-1 and 1-2 according to the present embodiment will be described. Here, although the operation of the air conditioning operation device 1-1 will be described, the operation of the air conditioning operation device 1-2 is the same except that the target room changes.
The control mode information acquisition unit 10 of the air conditioning operation device 1-1 is configured to control the room temperature of the room 100-1 in which the device is installed in either the cooling mode mainly based on the heat exchange type air conditioner or the complete outdoor air cooling mode. Information indicating whether it is being executed is constantly acquired from the control device 2. And the control mode presentation part 11 of the air-conditioning operation apparatus 1-1 presents the control mode in execution so that the resident of the room 100-1 can recognize.

  Thus, in this embodiment, since the occupant always recognizes the cooling mode being executed so that the occupant can recognize it, it becomes easier for the occupant to recognize how the room temperature changes when the temperature setting is changed. Can alleviate discomfort. For example, a resident can expect that the change in the room temperature when the temperature setting changes in the cooling mode mainly based on the heat exchange air conditioner, and the change in the room temperature in the complete outdoor air cooling mode. Can be expected to be slow.

  Next, the operation of presenting the occupant with an estimated value of the indoor temperature change time due to complete outdoor air cooling when the occupant changes the temperature setting will be described. The indoor temperature change time estimated value calculation method does not need to be a highly accurate estimated value calculation method as described above, and various calculation methods and levels are conceivable. For example, a method based on a physical model formula of the heat balance may be used, or as disclosed in Japanese Patent Laid-Open No. 6-332506, data indicating the input / output relationship of the controlled object may be analyzed by a fuzzy quantification type II method. Alternatively, a method using a mathematical formula derived by calculating a model function that approximates the resulting characteristic distribution may be used.

The calculation method described below is merely an example. The essence of the present invention is to make the occupant recognize which cooling mode it is and to present an estimated value of the indoor temperature change time even if it is an approximate value when in the complete outdoor air cooling mode.
The method of estimating the indoor temperature change time after changing the temperature setting in the state where the full outside air cooling mode is being executed differs depending on the conditions of the target room and air conditioning equipment. A simple example (estimation of change time of temperature decrease by maximum outside air damper opening degree) is shown.

Here, the current outside air temperature measurement value is A [° C.], the current outside air damper opening is θ, the maximum outside air damper opening during outside air cooling is θp, and the current air conveyance amount by the fan of the outside air cooler is S ( θ) [m ³ / min. ], The maximum air conveyance amount by the fan of the outside air cooler is S (θp) [m ³ / min. ], The room temperature setting value after the temperature setting change is C [° C.], the current indoor temperature measurement value is D [° C.], and the indoor heat generation energy amount estimation value is E [° C. m ³ / min. ], The indoor temperature estimated value is F [° C.], the indoor temperature change time estimated value is τ [min], and the indoor volume is R [m ³ ].

The outside air temperature measurement value A is measured by the outside air temperature sensor 111. The outside air temperature information acquisition unit 12 of the air conditioning operation device 1-1 acquires the outside air temperature measurement value A from the control device 2.
The room temperature measurement value D of the room 100-1 is measured by the room temperature sensor 110-1. The room temperature information acquisition unit 13 of the air conditioning operation device 1-1 acquires the room temperature measurement value D of the room 100-1 from the control device 2.

The air conditioner state information acquisition unit 14 of the air conditioning operation device 1-1 obtains the current opening degree θ of the outside air damper 108-1 for the room 100-1 from the control device 2 and the known indoor volume R of the room 100-1. Get information. In the air conditioner state information acquisition unit 14, the relationship between the outside air damper opening degree and the amount of air conveyed by the fan of the outside air cooler 105 is registered in advance. Based on this relationship, the air conditioner state information acquisition unit 14 can obtain the current air conveyance amount S (θ) by the fan of the outdoor air cooler 105 from the current outdoor air damper opening θ. Needless to say, when the outside air damper opening is the maximum value θp, the air conveyance amount takes the maximum value S (θp).
Also, the room temperature set value C after the temperature setting change input by the resident of the room 100-1 is input from the temperature set value change input unit 18 to the outside air cooling time change time estimated value calculation unit 15.

Assuming that there is a thermal equilibrium at the current time (before changing the temperature setting), the following relationship can be assumed.
E = (D−A) S (θ) (1)

In addition, regarding the indoor temperature change due to the outside air cooling, if the air mixing efficiency is expressed as a mathematical expression that is proportional to the temperature difference in the same manner as heat conduction, the following relationship is obtained. Note that ΔF / Δt means the amount of indoor temperature change per unit time.
RΔF / Δt = − (FA) S (θp) + E (2)
R (F′−F) / Δt = − (FA) S (θp) + E (3)
F ′ = F + {− (FA) S (θp) + E} Δt / R (4)
F ′ = F + {− (FA) S (θp) + (DA) S (θ)} Δt / R (5)

  If the initial temperature of F is set to D in the sequential calculation according to the equations (2) to (5), the indoor temperature change time estimated value τ can be calculated by a simple simulation. That is, the time required until F ′ = C may be obtained. According to the formulas (2) to (5), it is possible to incorporate a condition change prediction such as the outside air temperature.

Actually, mathematical conversion can be performed as follows, so that the time constant T of the indoor temperature change due to complete outdoor air cooling and the indoor convergence temperature G can be estimated.
F ′ = F + {− (FA) S (θp) + E} Δt / R (6)
F ′ = F {1−S (θp) Δt / R}
+ {A + E / S (θp)} {S (θp) Δt / R} (7)
F ′ = F {1−Δt / T} + GΔt / T (8)
T = R / S (θp) (9)
G = A + E / S (θp) = A + (DA) S (θ) / S (θp) (10)

Therefore, the indoor temperature estimated value F ′ (t) at an arbitrary time t can be obtained by the following equation using the time constant T and the convergence temperature G.
F ′ (t) = D + (GD) {1-exp (−t / T)} (11)

Then, since a mathematical expression for back-calculating the time t can be obtained with F ′ (t) = C, the indoor temperature change time estimated value τ can be calculated with respect to an arbitrary indoor temperature set value C. Become.
τ = −Tln {1− (CD) / (GD)} (12)
In the case of Expression (12), it is not possible to incorporate a condition change prediction such as the outside air temperature, but the amount of calculation can be reduced.

The outside air cooling time change estimated value calculation unit 15 of the air conditioning operation device 1-1 includes the indoor temperature measurement value D acquired by the indoor temperature information acquisition unit 13, and the outdoor temperature measurement value A acquired by the outdoor air temperature information acquisition unit 12. From the air conveyance amount S (θ) calculated by the air conditioner state information acquisition unit 14, the heat generation energy amount estimated value E [° C. m ³ / min. ] Is calculated by equation (1). Subsequently, the outside air cooling time estimated change time calculation unit 15 calculates the time constant from the indoor volume R of the room 100-1 acquired by the air conditioner state information acquisition unit 14 and the known maximum air conveyance amount S (θp). T is calculated by the equation (9), and the convergence temperature G is calculated from the indoor temperature measurement value D, the outside air temperature measurement value A, the air conveyance amount S (θ), and the known maximum air conveyance amount S (θp). Calculated according to equation (10).

Finally, the outside air cooling time estimated change time calculation unit 15 calculates the room temperature set value C, the room temperature measured value D, the time constant T, and the convergence temperature G input from the temperature set value change input unit 18. Then, the indoor temperature change time estimated value τ is calculated by the equation (12).
The outside air cooling time change time estimated value presentation unit 16 of the air conditioning operation device 1-1 presents the calculated room temperature change time estimated value τ so that the resident of the room 100-1 can recognize.

When the room temperature is increased by changing the temperature setting, a non-zero minimum outside air damper opening θr is assumed, and a known minimum air conveyance amount S (θr) [m ^3] corresponding to the minimum outside air damper opening θr is assumed. / Min. ] Is the maximum air conveyance amount S (θp) [m ³ / min. ], The indoor temperature change time estimated value τ can be calculated using the same mathematical formula as above.
In practice, values such as the time constant T may not be calculated, but may be adjusted in advance as fixed values so as to match actual changes.

  Next, a simulation example using specific numerical values is shown below. In order to verify the estimation formulas of the equations (1) to (12), the maximum outside air damper opening degree is obtained from a state in which there is no heat generation in the room and no cooling or intake of outside air is performed by the heat exchange type air conditioner. Confirm that you want to start taking in outside air. This case is referred to as simulation 1.

In the simulation 1, the current outside air temperature measurement value is A [° C.] = 18.0 [° C.], the current outside air damper opening is θ = 0.0, and the maximum outside air damper opening during outdoor air cooling is θ p = 1. 0, the air conveyance amount by the fan of the outside air cooler is S (θ) [m ³ / min. ] = 0.0 [m ³ / min.] ], The maximum air conveyance amount during outdoor air cooling is S (θp) [m ³ / min. ] = 1.0 [m ³ / min.] ], The current indoor temperature measurement value (= current indoor temperature setting value) is D [° C.] = 25.0 [° C.], and the indoor volume is R [m ³ ] = 100.0 [m ³ ] (5.0 m × 8.0 m × height 2.5 m), unit time Δt = 1.0 [min. ].

When the heat generation energy amount estimated value E, the time constant T, the convergence temperature G, and the indoor temperature change time estimated value τ are calculated by the equations (1), (9), (10), and (12), the following is obtained. Become.
E = (DA) S (θ) = 0.0 [° C. m ³ / min. ] (13)
T = R / S (θp) = 100.0 [min. ] (14)
G = A + E / S (θp) = 18.0 [° C.] (15)
τ = −Tln {1- (C−D) / (G−D)}
= -100.0ln {1- (C-25.0) / (-7.0)} (16)

  Thus, under the conditions of simulation 1, in the case of complete outdoor air cooling, the room temperature drops to 24.0 ° C after about 15 minutes, drops to 23.0 ° C after about 34 minutes, and 22.0 ° C after about 56 minutes. Can be estimated. After about 6 hours, the room temperature falls to about 18.2 ° C., which is substantially the same as the outside air temperature. 3 and 4 show the simulation results obtained by calculating the room temperature (room temperature set value C) from the time τ under the conditions of the simulation 1. 4 is 0 to 200 [min. It is the figure which expanded the range to]. 3 and 4, reference numeral 31 denotes a room temperature change based on the result of simulation 1, and 32 denotes a room temperature change based on the result of simulation 2 described later.

  Next, in order to verify the estimation formulas of the equations (1) to (12), the air conditioning is controlled to 25.0 ° C. only by the outside air cooling in a state where there is some exothermic material in the room. Confirm the case where the temperature is lowered by the outside air damper opening. This case is referred to as simulation 2.

In the simulation 2, the current outside air temperature measurement value is A [° C.] = 18.0 [° C.], the current outside air damper opening is θ = 0.5, and the maximum outside air damper opening during outdoor air cooling is θ p = 1. 0, the air conveyance amount by the fan of the outside air cooler is S (θ) [m ³ / min. ] = 0.5 [m ³ / min.] ], The maximum air conveyance amount during outdoor air cooling is S (θp) [m ³ / min. ] = 1.0 [m ³ / min.] ], The current indoor temperature measurement value (= current indoor temperature setting value) is D [° C.] = 25.0 [° C.], and the indoor volume is R [m ³ ] = 100.0 [m ³ ] (5.0 m × 8.0 m × height 2.5 m), unit time Δt = 1.0 [min. ].

When the heat generation energy amount estimated value E, the time constant T, the convergence temperature G, and the indoor temperature change time estimated value τ are calculated by the equations (1), (9), (10), and (12), the following is obtained. Become.
E = (DA) S (θ) = 3.5 [° C. m ³ / min. ] (17)
T = R / S (θp) = 100.0 [min. ] (18)
G = A + E / S (θp) = 21.5 [° C.] (19)
τ = −Tln {1- (C−D) / (G−D)}
= -100.0 ln {1- (C-25.0) / (-3.5)} (20)

  Thus, under the conditions of simulation 2, in the case of complete outdoor air cooling, the room temperature drops to 24.0 ° C. after about 34 minutes, drops to 23.0 ° C. after about 85 minutes, and 22.0 ° C. after about 195 minutes. Can be estimated. A simulation result obtained by reversely calculating the room temperature (room temperature set value C) from the time τ under the conditions of the simulation 2 is shown by 32 in FIGS. As can be seen from this result, if the temperature setting is changed by lowering the room temperature by 2 [° C.] only by the outside air cooling, it is necessary to wait about an hour and a half before the room temperature drops by 2 [° C.]. Yes, if you don't know how long the resident will wait, you may feel uncomfortable.

By the method as described above, it is possible to calculate the estimated value of the indoor temperature change time due to the complete outdoor air cooling when the resident changes the temperature setting, and presents the calculated indoor temperature change time estimated value to the resident This makes it easier for the resident to recognize how the room temperature changes when the temperature setting is changed, so that the resident's discomfort can be alleviated.
Note that the indoor temperature change time estimated value may be constantly calculated and presented at all times, or may be calculated and presented according to a resident's request.

  An example of the display / operation panel of the air conditioning operation device according to the present embodiment is shown in FIG. In FIG. 5, 50 is a room temperature set value display area, 51 is an air conditioning ON / OFF switch and ON / OFF display area, 52 is a room temperature set value change switch, 53 is a control mode display area, and 54 is a control mode instruction. The switch 55 is a display area for the estimated value of the indoor temperature change time.

Next, looking at the estimated indoor temperature change time displayed, the resident determines that the change in the indoor temperature when the temperature setting is changed appears to be slow in the case of complete outdoor air cooling. The operation when switching to the cooling mode will be described.
For example, in the numerical example of the simulation 2, if an attempt is made to change the temperature setting to lower the room temperature by 2 [° C.] only by the outside air cooling, it is necessary to wait for about one and a half hours. In such a case, it is considered that the occupant determines that the change in the indoor temperature is slow in complete outdoor air cooling.

  In such a case, the resident can operate the control mode instruction switch 54 shown in FIG. 5 to switch the control mode of the room temperature control to the cooling mode mainly for the heat exchange type air conditioner. As an actual operation procedure, immediately after the resident operates the indoor temperature setting value change switch 52 to change the indoor temperature setting value (for example, within 30 seconds), the control mode instruction switch 54 is further operated to perform heat exchange. Select a cooling mode mainly for air conditioners. The room temperature set value changed by the resident is acquired by the temperature set value change input unit 18, and the control mode instruction input unit 17 acquires information on the control mode selected by the resident. The room temperature set value changed by the resident and the control mode selected by the resident are notified from the air conditioning operation device 1-1 to the control device 2, and the room temperature control of the room 100-1 according to these changes is controlled by the control device. It goes without saying that it is executed by 2.

The temporary transition determination unit 19 of the air conditioning operation device 1-1 receives the changed indoor temperature set value from the temperature set value change input unit 18, and within a predetermined time (for example, within 30 seconds) from this indoor temperature set value change. When the cooling mode mainly of the heat exchange type air conditioner is selected, it is determined that the control mode is temporarily shifted.
When the cooling mode mainly for the heat exchange type air conditioner is selected, information indicating that the cooling mode is mainly for the heat exchange type air conditioner is controlled by the operations of the control mode information acquisition unit 10 and the control mode presentation unit 11. It is displayed in the mode display area 53.

The return operation unit 20 of the air-conditioning operation device 1-1 determines that the control mode is completely outside when the indoor temperature reaches the indoor temperature set value when the temporary transition determination unit 19 determines that the control mode is temporarily shifted. Return to cooling mode. It goes without saying that the control mode changed by the return operation unit 20 is notified to the control device 2 and the room temperature control of the room 100-1 by the complete outdoor air cooling is executed by the control device 2.
In this way, in the present embodiment, it is possible to eliminate forgetting to return to the control mode emphasizing energy saving by automatically returning to the complete outdoor air cooling.

  When the mode is changed to the complete outside air cooling mode, information indicating the complete outside air cooling mode is displayed in the control mode display area 53 by the operations of the control mode information acquisition unit 10 and the control mode presentation unit 11.

  Note that each of the air conditioning operation devices 1-1 and 1-2 and the control device 2 of the present embodiment is realized by a computer having a CPU, a storage device, and an interface, and a program for controlling these hardware resources. be able to. The CPU of each device executes the processing described in this embodiment in accordance with a program stored in the storage device.

  The present invention can be applied to an air conditioning system in which a heat exchange type air conditioner and an outside air cooler are used in combination.

  DESCRIPTION OF SYMBOLS 1-1, 1-2 ... Air-conditioning operation apparatus, 2 ... Control apparatus, 10 ... Control mode information acquisition part, 11 ... Control mode presentation part, 12 ... Outside temperature information acquisition part, 13 ... Indoor temperature information acquisition part, 14 ... Air conditioner state information acquisition unit, 15 ... Outdoor air cooling change time estimated value calculation unit, 16 ... Outdoor air cooling change time estimated value presentation unit, 17 ... Control mode instruction input unit, 18 ... Temperature set value change input unit, 19 ... Temporary transition determination unit, 20 ... return operation unit, 100-1, 100-2 ... room, 101-1, 101-2 ... heat exchange air conditioner, 105 ... outside air cooler, 108-1, 108-2 ... outside air Damper, 110-1, 110-2 ... indoor temperature sensor, 111 ... outside air temperature sensor.

Claims (11)

An air conditioning operation device in an air conditioning system in which a heat exchange type air conditioner and an outside air cooler are used together,
The cooling mode mainly for the heat exchange air conditioner that executes room temperature control mainly by increasing or decreasing the effect of the heat exchange air conditioner, and the room temperature by increasing or decreasing only the effect of the outside air cooler by stopping the heat exchange air conditioner. Control mode information acquisition means for acquiring information indicating which room temperature control is being executed in which control mode of the complete outdoor air cooling mode for executing control;
An air conditioning operation device comprising control mode presenting means for presenting a control mode being executed so that a resident can recognize the control mode. An air conditioning operation device in an air conditioning system in which a heat exchange type air conditioner and an outside air cooler are used together,
Outside temperature information acquisition means for acquiring outside temperature measurement values;
Room temperature information acquisition means for acquiring a room temperature measurement value;
Air conditioner state information acquisition means for acquiring state information of the outside air cooler;
A temperature setting value change input means by which a resident can change the room temperature setting value;
When the occupant changes the indoor temperature setting value from the outdoor temperature measurement value, the indoor temperature measurement value, the outdoor air conditioner state information, and the indoor temperature setting value, the indoor temperature is set in the complete outdoor air cooling mode only by the outdoor air cooling device. An outside air cooling change time estimated value calculating means for calculating an estimated value of the indoor temperature change time that is a time until the indoor temperature set value after the change is reached,
An air conditioning operation device comprising: an outside air cooling time change time estimated value presentation means for presenting the indoor temperature change time estimated value so that a resident can recognize it. The air conditioning operation device according to claim 2,
The outside air cooling change time estimated value calculating means calculates an estimated value of the room temperature in the complete outside air cooling mode assuming that the outside air can be introduced at the maximum outside air damper opening, and based on the estimated value of the room temperature. And calculating an estimated value for the indoor temperature change time. The air conditioning operation device according to claim 2,
The outdoor air cooling change time estimated value calculation means calculates the indoor temperature change time estimated value by simulation based on a mathematical expression for sequentially calculating the indoor temperature change per unit time. The air conditioning operation device according to claim 2,
The outside air cooling time change time estimated value calculating means calculates the time constant of the indoor temperature change and the indoor convergence temperature in the complete outdoor air cooling mode, assuming that the outside air can be taken in at the maximum outside air damper opening. An air conditioning operation device that calculates an estimated value of the indoor temperature change time with respect to a changed indoor temperature set value based on a time constant and a convergence temperature. In the air-conditioning operation device according to claim 1,
Furthermore, a control mode instruction input means by which the resident can selectively specify the control mode,
A temperature setting value change input means by which a resident can change the room temperature setting value;
Temporary transition determination means for determining whether or not the control mode is transitioned based on a control mode selection operation when the indoor temperature set value is changed;
And a return operation means for returning to the control mode before the temporary transition when the room temperature reaches the indoor temperature set value when it is determined by the temporary transition determination means that the temporary control mode is shifted. An air conditioning operation device characterized by that. The air conditioning operation device according to claim 2,
Furthermore, a control mode instruction input means by which the resident can selectively specify the control mode,
Temporary transition determination means for determining whether or not the control mode is transitioned based on a control mode selection operation when the indoor temperature set value is changed;
And a return operation means for returning to the control mode before the temporary transition when the room temperature reaches the indoor temperature set value when it is determined by the temporary transition determination means that the temporary control mode is shifted. An air conditioning operation device characterized by that. An air conditioning operation device of an air conditioning system in which a heat exchange type air conditioner and an outside air cooler are used together,
The cooling mode mainly for the heat exchange air conditioner that executes room temperature control mainly by increasing or decreasing the effect of the heat exchange air conditioner, and the room temperature by increasing or decreasing only the effect of the outside air cooler by stopping the heat exchange air conditioner. A control mode information acquisition procedure for acquiring information indicating in which control mode the room temperature control is being executed in the complete outdoor air cooling mode in which the control is executed;
An air conditioning operation method comprising: a control mode presenting procedure for presenting a control mode being executed so that a resident can recognize it. An air conditioning operation device of an air conditioning system in which a heat exchange type air conditioner and an outside air cooler are used together,
Outside air temperature information acquisition procedure for acquiring outside air temperature measurement value,
Indoor temperature information acquisition procedure for acquiring indoor temperature measurement values;
Air conditioner state information acquisition procedure for acquiring state information of the outside air cooler;
An indoor temperature setting value acquisition procedure for acquiring an indoor temperature setting value changed by a resident;
When the occupant changes the indoor temperature setting value from the outdoor temperature measurement value, the indoor temperature measurement value, the outdoor air conditioner state information, and the indoor temperature setting value, the indoor temperature is set in the complete outdoor air cooling mode only by the outdoor air cooling device. An outside air cooling change time estimated value calculation procedure for calculating an estimated value of the indoor temperature change time which is the time until the changed indoor temperature set value is reached,
An air conditioning operation method comprising: an outside air cooling change time estimated value presentation procedure for presenting the indoor temperature change time estimated value so that a resident can recognize it. The air conditioning operation method according to claim 8,
Furthermore, an indoor temperature set value acquisition procedure for acquiring an indoor temperature set value changed by a resident,
Based on the control mode selection operation by the occupant when the indoor temperature set value is changed, a temporary transition determination procedure for determining whether or not the temporary control mode transition;
An air-conditioning operation comprising a return operation procedure for returning to the control mode before the temporary transition when the room temperature reaches the indoor temperature set value when it is determined that the transition to the temporary control mode is performed. Method. The air conditioning operation method according to claim 9,
Further, based on the control mode selection operation by the resident when the indoor temperature set value is changed, a temporary transition determination procedure for determining whether or not the temporary control mode transition;
An air-conditioning operation comprising a return operation procedure for returning to the control mode before the temporary transition when the room temperature reaches the indoor temperature set value when it is determined that the transition to the temporary control mode is performed. Method.

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