Buildings and large infrastructures generally have central air conditioning. A central air conditioning unit uses a split system for its condenser and compressor. The evaporator is attached to an air handling mechanism or a forced air furnace. The whole system is housed in a packaged unit that is often located outdoors, such as a rooftop [...]

Air cooled water chiller is type of chiller that removes heat from water or other cooling refrigerant by use of a refrigeration system that then dissipates that same heat into the air. The energy efficiency is given by the chiller COP.

The chillers basic operation principal is based on change state of a refrigerant gas which when forced through an [...]

OT Room Air Conditioning Problem III: Control of the Temperature & RH
Further to my post Operation Theater Room (OT) air conditioning system problem part II, today I going to talk about the control of the OT room temperature and relative humidity (RH).
Problem
As you know that the air flow (CFM or CMM), temperature and RH parameter [...]

OT Room Air Conditioning Problem II: RH Increase When Temperature Drop
Further to my post on the hot air ventilation problem of the Operation Theater Room (OT) air conditioning, there is another problem I facing after resolve the above problem which I going to share with you all in this post. By then, hopefully you will [...]

Air Conditioning Design: Sizing of Air Conditioning Circulating Pump
Once we know the total flow rate required for the Chilled Water air conditioning system as mention in my previous post How to Size Water Cold or Chilled Water Flow Rate, next step is to design or select the circulating pump based on the designed flow rate.
Circulating [...]