Shell and plate heat exchanger for water-cooled chiller and water-cooled chiller including the same

A water-cooled chiller comprising:

• a water line arranged in thermal communication with an outside environment;
• an evaporator including a first shell-and-plate heat exchanger having a first shell and a plurality of first heat exchanger plates, the first shell defining a cavity configured to receive a first fluid and a second fluid, each of the first heat exchanger plates having a first side and a second side facing in opposite directions in a thickness direction of the first heat exchanger plate;
• and
• a condenser including a second shell-and-plate heat exchanger having a plurality of second heat exchanger plates, each of the second heat exchanger plates having two sides facing in opposite directions in a thickness direction of the second heat exchanger plate, at least one of the sides of at least one of the second heat exchanger plates containing both an s-groove and a plurality of r-grooves, the s-groove being a spiral groove that emanates from the center of the heat exchanger plate and the plurality of r-grooves being radial grooves that emanate from the center of the plate,
• the first side of each of the first heat exchanger plates being arranged to contact the first fluid during operation and having a first surface roughness between 5 μm and 100 μm,
• the second side of each of the first heat exchanger plates being arranged to contact the second fluid during operation and having a second surface roughness between 5 μm and 100 μm, and
• the first surface roughness being different from the second surface roughness.