公开(公告)号：US11268729B2

公开(公告)日：2022-03-08

申请号：US16403716

申请日：2019-05-06

Applicant: Johnson Controls Technology Company

Inventor： Soumyadeep Ray ,  Sayan Chakraborty ,  Milan Mitra ,  Anjani Kumari

IPC: F24F11/523 ,  F24F11/63 ,  G05B19/042 ,  F24F120/14 ,  F24F110/10 ,  F24F110/20 ,  F24F110/30

Abstract: A method for providing environmental comfort includes obtaining measurements of a dry bulb temperature, a relative humidity, and an airflow rate for an indoor space, calculating an apparent temperature for the indoor space using the measurements, and generating a visualization comprising a comfort band and a value of each of the apparent temperature, the dry bulb temperature, the relative humidity, and the airflow rate for the indoor space plotted relative to the comfort band along independent axes. The method also includes controlling building equipment to drive the value of one or more of the apparent temperature, the dry bulb temperature, the relative humidity, or the airflow rate into the comfort band.

公开(公告)号：US20190338975A1

公开(公告)日：2019-11-07

申请号：US16403716

申请日：2019-05-06

Applicant: Johnson Controls Technology Company

Inventor： Soumyadeep Ray ,  Sayan Chakraborty ,  Milan Mitra ,  Anjani Kumari

IPC: F24F11/523 ,  G05B19/042 ,  F24F11/63

Abstract: A method includes obtaining measurements of a dry bulb temperature, a relative humidity, and an airflow rate for an indoor space. The method also includes calculating an apparent temperature for the indoor space using the measurements, and generating a visualization that includes a comfort band and a value of each of the apparent temperature, the dry bulb temperature, the relative humidity, and the airflow rate for the indoor space. The method also includes controlling building equipment to drive the value of one or more of the

公开(公告)号：US10948214B2

公开(公告)日：2021-03-16

申请号：US16405294

申请日：2019-05-07

Applicant: Johnson Controls Technology Company

Inventor： Soumyadeep Ray ,  Milan Mitra ,  Sayan Chakraborty ,  Anjani Kumari

IPC: F24F11/30 ,  F24F11/67 ,  F24F110/22 ,  F24F110/12

Abstract: An HVAC system for a building includes an airside economizer, a plurality of sensors, and a controller. The airside economizer includes a first air intake configured to receive return air from within a building, a second air intake configured to receive outdoor air from outside the building, and an air discharge configured to provide discharge air to the building. The controller is configured to identify a wet coil condition or a dry coil condition, calculate an enthalpy of the return air and an enthalpy of the outdoor air, select either a normal cooling mode or free cooling mode based on the calculated enthalpy of the return air, the calculated enthalpy of the outdoor air, and the identification of the wet coil condition or the dry coil condition, operate the airside economizer to provide the return air to the building as the discharge air in response to selecting the normal cooling mode, and operate the airside economizer provide the outdoor air to the building as the discharge air in response to selecting the free cooling mode.

公开(公告)号：US20190338979A1

公开(公告)日：2019-11-07

申请号：US16405294

申请日：2019-05-07

Applicant: Johnson Controls Technology Company

Inventor： Soumyadeep Ray ,  Milan Mitra ,  Sayan Chakraborty ,  Anjani Kumari

IPC: F24F11/67 ,  F24F11/30

Abstract: An HVAC system for a building includes an airside economizer, a plurality of sensors, and a controller. The airside economizer includes a first air intake configured to receive return air from within a building, a second air intake configured to receive outdoor air from outside the building, and an air discharge configured to provide discharge air to the building. The controller is configured to identify a wet coil condition or a dry coil condition, calculate an enthalpy of the return air and an enthalpy of the outdoor air, select either a normal cooling mode or free cooling mode based on the calculated enthalpy of the return air, the calculated enthalpy of the outdoor air, and the identification of the wet coil condition or the dry coil condition, operate the airside economizer to provide the return air to the building as the discharge air in response to selecting the normal cooling mode, and operate the airside economizer provide the outdoor air to the building as the discharge air in response to selecting the free cooling mode.