Free cooling and heating system

Abstract

Described herein is a free cooling and heating system for a multi-storey building. The system includes a plurality of temperature sensors configured to measure temperatures on different floors, an air handling unit (AHU) integrated with an HVAC unit, including at least one blower unit configured to transfer air between the different floors. The system further includes at least one motorized damper positioned within a Wye branch, with the Wye branch configured to connect the HVAC unit with the AHU to transfer conditioned air to the required floor, and a computing device operatively connected to the plurality of temperature sensors, the air handling unit, and the at least one motorized damper of the Wye branch.

I claim: 
     
         1 . A free cooling and heating system for a multi-storey building, the system comprising:
 a plurality of temperature sensors configured to measure temperatures on different floors;   an air handling unit (AHU) integrated with a HVAC unit, and including at least one blower unit, the at least one blower unit configured to transfer air between the different floors;   at least one motorized damper positioned within a Wye branch and configured to connect the HVAC unit with the AHU to transfer conditioned air to the required floor;   an air duct system connecting the AHU, the Wye branch, the HVAC unit and the floor air distributing fittings;   a controller;   and   a computing device operatively connected to the plurality of temperature sensors, the air handling unit, the HVAC unit and the at least one motorized damper, the computing device configured to:
 receive temperature data from the plurality of temperature sensors; 
 determine when a predefined differential threshold is exceeded; 
 activate the air handling unit to transfer air between different floors; 
 regulate conditioned airflow through the at least one motorized damper; 
 operate the HVAC unit; 
 and 
 dynamically adjust a speed of the at least one blower unit and a position of the at least one motorized damper based on at least one of real-time temperature data and user input. 
   
     
     
         2 . The system of  claim 1 , wherein the AHU includes a dual-blower configuration, the dual-blower configuration configured to transfer air between the different floors through corresponding air duct system. 
     
     
         3 . The system of  claim 1 , wherein the temperature sensors may be housed within the AHU. 
     
     
         4 . The system of  claim 1 , wherein the AHU is enclosed within an insulated housing, the insulated housing comprising:
 a sound-dampening layer configured to reduce operational noise levels; and   an air-sealing layer configured to prevent air leakage from the AHU.   
     
     
         5 . The system of  claim 1 , wherein the at least one blower unit of the air handling unit is configured to operate at variable speeds, dynamically adjusting airflow based on real-time temperature data and automatically pressure balancing the system. 
     
     
         6 . The system of  claim 1 , wherein the Wye branch fluidly connects the air duct system, the air handling unit (AHU), and the HVAC unit, wherein the Wye branch is configured to facilitate airflow, allowing selective mixing of conditioned air from the HVAC unit with the recirculated air through the duct system. 
     
     
         7 . The system of  claim 1 , further comprising motorized dampers within the Wye branch configured to regulate the mixing of conditioned air from the HVAC unit with recirculated air, wherein the activation of the motorized dampers is dynamically controlled based on a detected deviation of the temperature differential from a predefined threshold. 
     
     
         8 . The system of  claim 1 , further comprising an air filtration mechanism disposed within the AHU unit, the air filtration mechanism configured to prevent odor transfer between floors. 
     
     
         9 . The system of  claim 1 , wherein the computing device comprises a self-learning module, the self-learning module configured to predict HVAC startup times, to record historical HVAC operation data, learn HVAC operational trends, and generate a learning-based schedule and initiate preemptive start up of the AHU. 
     
     
         10 . The system of  claim 1 , further comprising a wireless user interface operatively connected to the computing device, the wireless user interface configured to enable remote monitoring, manual overrides, and adjustment of system parameters. 
     
     
         11 . The system of  claim 1 , wherein the computing device is further configured to be connected to the thermostat or the control board of the HVAC unit. 
     
     
         12 . The system of  claim 1 , wherein the computing device is further configured to activate the AHU, upon the discovery of temperature differential and deactivate the AHU upon achieving temperature equilibrium between floors. 
     
     
         13 . The system of  claim 1 , wherein the computing device is configured to selectively control at least one motorized damper located in the Wye branch. 
     
     
         14 . The system of  claim 1 , wherein the computing device is configured to operate the system in manual or automatic mode as per user selection at the controller. 
     
     
         15 . The system of  claim 1 , wherein the computing device is configured to operate the system blower unit only at a selected speed when manual mode is selected from the controller. 
     
     
         16 . A method for balancing temperature differentials between different floors in a multi-storey building, the method comprising:
 detecting, by a plurality of temperature sensors, temperature variations between floors;   determining, by a computing device, whether a predefined temperature differential threshold is exceeded;   activating, by the computing device, an air handling unit (AHU) to initiate airflow redistribution when the predefined temperature differential threshold is exceeded;   operating, by the computing device, at least one motorized damper to regulate airflow from the HVAC unit; and   monitoring, by the computing device, temperature variations and deactivating the system components when temperature equilibrium is achieved.   
     
     
         17 . The method of  claim 16 , further comprising activating a blower motor for a predefined duration, for after a predefined interval, to facilitate temperature detection on at least two floors, wherein the computing device calculates the temperature differential based on the acquired temperature readings. 
     
     
         18 . The method of  claim 16 , further comprising learning, by the computing device, historical temperature fluctuations to preemptively adjust airflow redistribution before a predefined temperature differential threshold is exceeded. 
     
     
         19 . The method of  claim 16 , wherein adjusting the at least one motorized damper further comprises modulating damper angles incrementally to optimize airflow while preventing sudden pressure changes. 
     
     
         20 . The method of  claim 16 , further comprising determining, by the computing device, an optimal airflow rate based on detected temperature differentials.