YORK_HVAC European catalogue_Mar. 2021_EN | Page 86

Chillers and Heat Pumps | Absorption Chillers and Heat Pumps

Reliable energy-saving technology , explained .

Conventional Cycle

Another way of thinking about this process is to imagine a rocket ship trying to reach the moon . In the example here , the rocket ship only has one rocket to push it the entire distance from the earth to the moon – requiring 100 % of the fuel . In much the same way , a conventional-cycle absorption chiller only has one evaporator and absorber to overcome cooling output requirements and achieve the cooling load , using 100 % input energy .

EVAPORATOR + ABSORBER

2-Step Evaporator / Absorber Cycle

Now imagine the rocket ship has two rockets to share the goal of reaching the moon . Both rockets need less fuel , since they share the effort to get the rocket ship to its goal . Instead of a single rocket bearing the entire job from point A to point B , two rockets split the effort , allowing for a continuation of effective effort and requiring only 90 % of the fuel . This example illustrates the 2-step evaporator / absorber cycle , which allows the evaporator and absorber to achieve the necessary cooling output over two steps while using 10 % less input energy .

EVAPORATOR + ABSORBER 2

EVAPORATOR + ABSORBER 1

The 2-step cycle evaporator / absorber requires less energy input and a lower salt solution concentration , allowing for increased reliability and 10 % energy savings .

Input Energy Required to Achieve Cooling Load

Salt Solution Concentration

Learn more about the benefits of YORK 2-step cycle technology at YORK . com / Absorption-Chillers

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YORK Air-Conditioning Products