Abstract:
The present disclosure relates to the field of air conditioning technology. In particular, it involves a control method and control device based on a DC variable speed AC compressor.
Abstract:
Airflow calibration systems are provided that are configured to be received in a duct of a heating, ventilating and air conditioning (HVAC) system. The air flow calibration systems include a housing including an air flow grid; and at least one pressure sensing cell positioned in the housing, the at least one cell being configured such that air flows through the at least one cell when the airflow calibration system is positioned in the duct of the HVAC system. The airflow calibration system is configured to be temporarily installed in the duct of the HVAC system to calibrate the HVAC system upon completion of the HVAC system or to recalibrate the HVAC system after a period of time.
Abstract:
An air conditioning system of a building is provided. A method for controlling air conditioning of a building includes controlling a temperature of a heat medium based on a reservation rate for using spaces in the building and outside weather, and controlling a flow of the heat medium based on at least one sensing information measured in the spaces.
Abstract:
Airflow calibration systems are provided that are configured to be received in a duct of a heating, ventilating and air conditioning (HVAC) system. The air flow calibration systems include a housing including an air flow grid; and at least one pressure sensing cell positioned in the housing, the at least one cell being configured such that air flows through the at least one cell when the airflow calibration system is positioned in the duct of the HVAC system. The airflow calibration system is configured to be temporarily installed in the duct of the HVAC system to calibrate the HVAC system upon completion of the HVAC system or to recalibrate the HVAC system after a period of time.
Abstract:
An arrangement (1) for air management of a room (100) comprises ventilating means (10) for enabling exchange of air between the inside environment (102) of the room (100) and the outside environment (103) of the room (100); a stand-alone air purifier (20), which is arranged separately from the ventilating means (10), and which is adapted to remove pollutants from the air in the inside environment (102) of the room (100); and a control system (30, 31, 32), which is in communication with both the ventilating means (10) and the air purifier (20), and which is adapted to control operation of the ventilating means (10) and the air purifier (20) in dependence of air quality data relating to the inside environment (102) of the room and the outside environment (103) of the room, the control system (30,31,32) being configured to control the ventilating means (10) and the air purifier (20) differently depending on whether the air quality data relating to the outside environemnt of the room (100) is above or below a predetermined reference. Operation of the arrangement (1) is aimed at optimizing indoor air quality and minimizing energy consumption.
Abstract:
For controlling the flow of air into the zones (Z1, Z2, Z3, Zi) of a variable air volume HVAC system (1) having actuator driven dampers (D1, D2, D3, Di), which operate in a range from a minimum damper position to a maximum damper position for adjusting the flow of air into a zone (Z1, Z2, Z3, Zi), flow measurement values and current damper positions are transmitted via a telecommunications network (2) to a cloud-based HVAC control center (3). Using the flow measurement values and calibration values, which indicate HVAC system parameters at a defined calibration pressure in the HVAC system (1) and at different damper positions, the cloud-based HVAC control center (3) calculates the minimum damper position for the actuators (A1, A2, A3, Ai), such that the pressure in the HVAC system (1) does not exceed a defined maximum pressure threshold, and transmits the minimum damper position to the actuators.
Abstract:
The present invention is directed to an apparatus for minimizing power consumption in a cooling system. In one embodiment, the apparatus comprises one or more processors, one or more sensors associated with one or more regulated environments and one or more chillers that regulate temperature of the one or more regulated environments and a storage device, coupled to the one or more processors, storing instructions that when executed by the one or more processors performs a method. The method comprises gathering readings from the one or more sensors, determining a cost and power consumption associated with setting values for a plurality of control variables associated with the one or more chiller plants, selecting values for the control variables with a minimum cost as optimized control variable values and applying the optimized control variable values to the plurality of control variables to minimize power consumption of the cooling system.