DESIGN OF HVAC SYSTEM FOR A COMMERCIAL BUILDING BY USING RADIANT COOLING

Abstract

The design of air conditioning (HVAC) systems for commercial building by using radiant cooling systems. Radiant cooling system is a promising technique, which is suitable for independent control processes of temperature and humidity. The two main benefits of radiant cooling systems include the potential to save energy and improvement of indoor thermal comfort. The Radiant Cooling with Ceiling system consolidate the pipe network in each panel and the piping are connected to the chiller through these pipes the chilled water will be circulated to the ceiling panels . ceiling panels are designed in such a way that there would be no condensation occur at ceiling panels as they are designed below dew point temperature . The radiant cooling panels can work more efficiently especially when proper control strategies are employed to avoid condensation. The surveying data conducted during the design indicate how much of the tonnage required for the whole area with which we can distribute the temperature in the surface through radiant ceiling panels for the proper comfort of the occupants in the space. our designing will make sure in this we are using a temperature controlled surface that cool cools indoor temperature by removing sensible heat and where the half of the heat transfer occur through thermal radiation i . e by lightning loads, equipment loads, and majorly the sensible heat generated by the occupants in the working space which will describe the total tonnage required for the space for proper comfort of the occupants . . Our calculations determine the coil size too for fixing it at the ceiling, the coil size will determine to fix it at ceiling for connecting it to the pipes which are travelling from the chiller unit by carrying the chilled water through out the ceiling panels. In our project there is a separate system to provide air for ventilation and for additional cooling for the occupants in the space . . These establishment will be really helpful in optimizing and controlling the strategies of HVAC system. The project work includes heat load calculation of the building through hourly analysis program (HAP), duct designing through mc quay duct sizer, pipe sizing through mc quay pipe sizer, drafting of air distribution system.