The evaporator is located between the expansion valve and the compressor, its purpose is to collect the unwanted heat from the building and move this into the refrigerant so that it can be sent to the cooling tower and rejected. If the building rents floors out to tenants and the tenants have full control over the fit-out of their area, then the drawing will likely just show the connection from the riser to the tenant space and anything after that is up to the tenant’s fit-out contractors. The refrigerant and the water do not mix they are kept separated by a pipe wall, the water flows inside the pipe and the refrigerant flows on the outside. You can use this number to find the correct fitting and also lookup detail for it in the log sheet such as size and type. In the case of chillers, heat is taken from the fluid being chilled and transferred to the ambient air. The fluid circuit is typically comprised of a fluid reservoir, a pump, filters, and a heat exchanger.
Notice there is a common header between the flow and return lines. A chiller is a machine that removes heat from a liquid via a vapor-compression, Adsorption refrigeration, or absorption refrigeration cycles.
Another common version of the cooling tower you might come across will look something like this.
Process pump specifications that are important to consider include the process flow, process pressure, pump material, elastomer and mechanical shaft seal material, motor voltage, motor electrical class, motor IP rating and pump rating. allows heat to migrate from the refrigerant gas to either water or air. In newer systems you will find a motorised control valve here which is connected to the Building Management System and allows remote control. These cookies will be stored in your browser only with your consent. It is in the evaporator that the process fluid will interact with the cold refrigerant. I’m a industrial tech, I work with chillers, hvac units. With evaporative cooling heat rejection, their coefficients of performance (COPs) are very high; typically 4.0 or more. This is really fascinating to learn more about as my sister thinks about getting a chilled water pipe installed. because the unit inside the walk in freezer is a single phase supply (115v) and the unit that sits outside is a 3 phase supply (208V – 240V)phase to phase. Chillers for industrial applications can be centralized, where a single chiller serves multiple cooling needs, or decentralized where each application or machine has its own chiller. Important specifications to consider when searching for industrial chillers include the total life cycle cost, the power source, chiller IP rating, chiller cooling capacity, evaporator capacity, evaporator material, evaporator type, condenser material, condenser capacity, ambient temperature, motor fan type, noise level, internal piping materials, number of compressors, type of compressor, number of fridge circuits, coolant requirements, fluid discharge temperature, and COP (the ratio between the cooling capacity in RT to the energy consumed by the whole chiller in KW). Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. I coordinate with building maintenance/write PMs for our campus/higher ed CMMS, and I was running into a terminology issue with some people.
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