A cooling machine (chiller) is a
thermodynamic system that, thanks to cyclic transformations (refrigeration
cycles), transfers heat from a cold environment (lower temperature) to a warm
one (higher temperature) using mechanical work (L) provided from outside. The
work provided to the chiller can be of different nature:
- in case
of steam compression chillers, the energy spent within the cycle has the form
of a compression work, executed by a compressor in order to change the cooling
fluid from steam to liquid state.
- in case of
absorption chillers, the amount of electric energy supplied to power a
compressor is almost entirely replaced by low temperature heat (about 90-120°C).
These machines work with a binary mixed bromide lithium/water or ammonia/water
process fluid. An application of this kind is particularly useful when process
waste heat is available (exhaust gas, hot waste water, etc.) together with the
necessity to produce “cold” at temperatures not lower than 3-4°C (typically for
environment cooling).
In both cases, RENOVIS guarantees the technological solutions at highest COP (Coefficient of Performance)
possible, i.e. at the lowest consumption with produced outcome being equal.
