Abstract: An air-conditioning apparatus control device that controls an air-conditioning apparatus and includes an airflow side model construction unit configured to construct an airflow side model, an equipment side model construction unit configured to construct an equipment side model, a coupled optimization execution unit having an objective function calculation unit that calculates a value of an objective function for the air-conditioned space and a sensitivity derivation unit that derives sensitivity, which is change in the objective function when a control variable is changed, and configured to calculate an optimum solution by optimizing the objective function based on the airflow side model and the objective function based on the equipment side model, and a control target value determination unit configured to determine a control target value for the air-conditioning apparatus from the optimum solution.

Abstract: An air conditioning control device includes a storage device that stores a plurality of analysis conditions to which respective priorities are assigned, and a result of an airflow analysis for each of the analysis conditions, and an arithmetic device that controls an air-conditioning apparatus. The arithmetic device includes an airflow analysis unit that performs the airflow analysis for the plurality of analysis conditions in order of priority from highest to lowest, an airflow control feasibility determination unit that determines, in accordance with a generation state of an analysis result provided by the airflow analysis unit, whether or not airflow control can be started for the air-conditioning apparatus, and an operating state decision unit that, when the airflow control feasibility determination unit determines that the airflow control can be started, decides on an operating state of the air-conditioning apparatus in accordance with an analysis result provided by the airflow analysis unit.

Abstract: An air-conditioning control device includes an evaluation unit configured to receive inputs of package management data, air-conditioning apparatus operation data, and sensor measurement data that are received by a receiver device, an input of package placement determined by a package placement determination unit, and an input of an air-conditioning operation state of an air-conditioning apparatus determined by an air-conditioning operation determination unit, calculate as an evaluation value at least one of package temperature, temperature at a plurality of points in an indoor space, and electricity consumption of the air-conditioning apparatus by using a package model, an environmental distribution model, and an air-conditioning apparatus model that are stored in a storage device, and determine an optimum air conditioning operation state and an optimum package placement.

Abstract: An air-conditioning control device according to the present disclosure controls air-conditioning units that are an outdoor unit and a plurality of indoor units each having an air outlet. The air-conditioning control device includes: a storage device that stores set input data that includes a space set temperature set for a target space to be air-conditioned and space position information on the target space; and an arithmetic device that performs a control of the indoor units based on the set input data, such that air currents blown from the air outlets of the indoor units are caused to collide with each other in a space located just above the target space and air obtained by collision of the air currents and having the space set temperature is caused to reach the target space.

Abstract: A ventilator (1) includes: an air supply fan (2) to supply outdoor air to a room; an air exhaust fan (3) to exhaust indoor air, out of the room; and a total heat exchanger (4) which is made with partition boards (41) being moisture-permeable flat parts and with spacer boards (42) being corrugated parts, the partition boards and the spacer boards being alternately stacked, the total heat exchanger exchanging heat between the outdoor air and the indoor air; and thereby suppresses ice formation. The ventilator (1) includes: an indoor temperature sensor (7); an indoor humidity sensor (8); an outdoor temperature sensor (6); and a control unit (5) to control operation of the air supply fan (2) and the air exhaust fan (3) on a basis of at least one state quantity estimated by substituting the indoor air temperature, the indoor air humidity, and the outdoor air temperature in a total heat exchanger model formula (51a) representing characteristics of the total heat exchanger (4).

Abstract: In a thermal load estimation device, a process in which a state estimating unit estimates a state amount indicating a state of a target area at an estimation target time by using measurement data obtained by measuring a state amount of the target area, air conditioner operation data indicating an operation state of an air conditioner disposed in the target area, and a thermal load of the target area estimated by a thermal load estimating unit, and a process in which the thermal load estimating unit estimates the thermal load of the target area by using the measurement data, the air conditioner operation data, and an estimation value of the state amount of the target area estimated by the state estimating unit are alternately performed, so that a thermal load likely to be the thermal load of the target area at the estimation target time is estimated.

Abstract: An information processing apparatus includes a memory storing equipment information, an equipment characteristics table, and an energy saving control menu, a receiver configured to receive energy saving control and a condition and acquire operation data and measurement data from a controller of equipment, a processor, and a display outputting a result. The processor obtains an actual load factor based on the operation data and the measurement data, obtains a control characteristics correction parameter regarding control characteristics of the equipment, estimates a load factor distribution for an estimation target period according to the actual load factor.

Abstract: A model generating part generates an analysis model for an airflow analysis of an indoor space. A temperature distribution estimating part performs the airflow analysis of the indoor space by using the analysis model and estimates a temperature distribution in the indoor space. A communication part acquires a temperature measured at a measurement point in the indoor space. A model correcting part collates the temperature distribution estimated by the temperature distribution estimating part with the temperature at the measurement point acquired by the communication part, and corrects the analysis model based on a collation result.

Abstract: Change of a set room temperature of an air-conditioning apparatus leads to change of electric power consumed by the air-conditioning apparatus, and in a case of cooling, the consumed electric power increases as the set room temperature decreases. Consequently, a user has been unable to freely change the set room temperature. Thus, when the set room temperature is changed by the user, an evaporating temperature (refrigerant temperature) at which the electric power consumed by the air-conditioning apparatus does not change before and after the change is estimated and the air-conditioning apparatus is commanded for the evaporating temperature, which allows the user to pursue indoor comfort without worrying about the electric power consumed by the air-conditioning apparatus.

Abstract: An air-conditioning control device for controlling an air-conditioning apparatus configured to perform air conditioning of a room in which a device that changes an amount of water vapor is located. The air-conditioning control device includes a condensation occurrence determiner configured to determine whether condensation occurs in the room after a certain amount of time elapses by using an amount of change in water vapor, which is predicted by collating device operation data with a device operation table, and an air-conditioning controller configured to change an operation state of the air-conditioning apparatus when the condensation occurrence determiner determines that condensation occurs.

Abstract: An air-conditioning control evaluation apparatus includes a storage unit and a computing unit. The storage unit stores building information, input information, control information, a set of building models, and a candidate selection criterion. The computing unit determines an item available as input data for a building model, identifies the distribution of observed data, selects a plurality of candidate building models from the set of building models based on the available item and candidate selection criterion, estimates each parameter based on a method corresponding to the distribution, determines one building model based on a predetermined statistic calculated for the plurality of building models and the residual between estimated and observed values calculated for each of the building models, and evaluates, by use of the determined building model, energy saving and comfort for a plurality of controls to be evaluated.

Abstract: Change of a set room temperature of an air-conditioning apparatus leads to change of electric power consumed by the air-conditioning apparatus, and in a case of cooling, the consumed electric power increases as the set room temperature decreases. Consequently, a user has been unable to freely change the set room temperature. Thus, when the set room temperature is changed by the user, an evaporating temperature (refrigerant temperature) at which the electric power consumed by the air-conditioning apparatus does not change before and after the change is estimated and the air-conditioning apparatus is commanded for the evaporating temperature, which allows the user to pursue indoor comfort without worrying about the electric power consumed by the air-conditioning apparatus.

Abstract: An air-conditioning system includes: a controller configured to: extract a lower limit load that occurs at a minimum, in a load that occurs in an air-conditioned space and that changes depending a time period; distribute a proportion at which the extracted lower limit load is to be processed, as a processing proportion stored in a memory; control each of air-conditioning apparatuses that are at a second place and subsequent places in apparatus rankings, such that the lower limit load is processed and distributed, and to control an air-conditioning apparatus that is at a first place in the apparatus rankings, such that a remaining load of the lower limit load and a fluctuating load that occurs over the lower limit load are processed.

Abstract: A ventilator (1) includes: an air supply fan (2) to supply outdoor air to a room; an air exhaust fan (3) to exhaust indoor air, out of the room; and a total heat exchanger (4) which is made with partition boards (41) being moisture-permeable flat parts and with spacer boards (42) being corrugated parts, the partition boards and the spacer boards being alternately stacked, the total heat exchanger exchanging heat between the outdoor air and the indoor air; and thereby suppresses ice formation. The ventilator (1) includes: an indoor temperature sensor (7); an indoor humidity sensor (8); an outdoor temperature sensor (6); and a control unit (5) to control operation of the air supply fan (2) and the air exhaust fan (3) on a basis of at least one state quantity estimated by substituting the indoor air temperature, the indoor air humidity, and the outdoor air temperature in a total heat exchanger model formula (51a) representing characteristics of the total heat exchanger (4).

Abstract: An air-conditioning control device for controlling an air-conditioning apparatus configured to perform air conditioning of a room in which a device that changes an amount of water vapor is located. The air-conditioning control device includes a condensation occurrence determiner configured to determine whether condensation occurs in the room after a certain amount of time elapses by using an amount of change in water vapor, which is predicted by collating device operation data with a device operation table, and an air-conditioning controller configured to change an operation state of the air-conditioning apparatus when the condensation occurrence determiner determines that condensation occurs.

Abstract: An air-conditioning system control apparatus including: a storage to store data for control of a ventilation apparatus and an air-conditioning apparatus; and a computing device to generate a control command controlling the ventilation and the air-conditioning apparatus based on the stored data.

Abstract: An indoor environment model creation device is configured to create an indoor environment model of an indoor space in which air-conditioning equipment configured to condition air, an indoor humidity sensor configured to measure an indoor humidity of the indoor space, and a CO2 sensor configured to measure a CO2 concentration in the indoor space are installed. The indoor environment model includes a plurality of physics models in which heat, moisture, and CO2 concentration parameters are included. The indoor environment model creation device includes: a data storage unit configured to store operation data of the air-conditioning equipment in a learning target period as learning-use input data, and store measurement data measured by the CO2 sensor and the humidity sensor; and a model parameter learning unit configured to comprehensively learn the plurality of physics models with use of the learning-use input data and the measurement data, which are stored in the data storage unit.

Abstract: An air-conditioning system controller controls one or plural air-conditioning apparatus installed in a building, and includes a processor that determines an air-conditioning apparatus control command so that a preset evaluation index satisfies a preset condition in a preset control-target period under a preset constraint. The processor divides the control-target period into time sections, determines a room-temperature change permissible range within which a room temperature satisfies the constraint, determines a heat-load change permissible range, based on the room temperature, the room-temperature change permissible range, a heat load estimation, and a heat load to be processed by each air-conditioning apparatus, and determines, for each time section, as the air-conditioning apparatus control command, an operation frequency and start-stop of the air-conditioning apparatus, based on the heat-load change permissible range and an operation efficiency of the air-conditioning apparatus.

Abstract: An air-conditioning system includes: a controller configured to: extract a lower limit load that occurs at a minimum, in a load that occurs in an air-conditioned space and that changes depending a time period; distribute a proportion at which the extracted lower limit load is to be processed, as a processing proportion stored in a memory; control each of air-conditioning apparatuses that are at a second place and subsequent places in apparatus rankings, such that the lower limit load is processed and distributed, and to control an air-conditioning apparatus that is at a first place in the apparatus rankings, such that a remaining load of the lower limit load and a fluctuating load that occurs over the lower limit load are processed.

Abstract: An air-conditioning control evaluation apparatus includes a storage unit and a computing unit. The storage unit stores building information, input information, control information, a set of building models, and a candidate selection criterion. The computing unit determines an item available as input data for a building model, identifies the distribution of observed data, selects a plurality of candidate building models from the set of building models based on the available item and candidate selection criterion, estimates each parameter based on a method corresponding to the distribution, determines one building model based on a predetermined statistic calculated for the plurality of building models and the residual between estimated and observed values calculated for each of the building models, and evaluates, by use of the determined building model, energy saving and comfort for a plurality of controls to be evaluated.