YOU must if you are one of the Ammonia chiller operators or HVAC consultants or HVAC engineer or industrial chiller manufacturers or heat exchanger manufacturers in India like us, you must know the challenges and their solutions in Shell and tube chiller evaporators used in Ammonia chillers.

Shell and tube chiller condensers and evaporators have been used since ages for the industrial chillers. The mathematical modelling and design have been optimised time and again to get the maximum efficiency and lowest cost of ownership. But this is only true for HFC and HCFC gases. For natural gases like R717( ammonia), CO2, ethylene based chillers, experimental data and in depth research analysis is not available in abundance.And most of the chiller supplier in India and elsewhere follow a rule of thumb instead of proper calculations for ammonia chiller manufacturing and operation.

So in this blog we will try to address the challenges faced in designing, constructing, assembling and operating shell and tube chiller evaporators in ammonia refrigeration. It might become too lengthy and boring at the same time so we will divide it in 2 parts.

As you already know Ammonia chiller is a tricky system to design, construct and operate versus R22 or R134a or R404a or any other HFC, HCFC gas based system. Vast experience and in depth technical knowledge of the thermodynamic properties of Ammonia refrigerant are essential for Ammonia chiller manufacturers.