CSA C743-09 pdf free download

CSA C743-09 pdf free download.Performance Standard for rating packaged water chillers.
Integrated part-load value (IPLV) — a value that represents the part-load efficiency of a chiller at standard rating conditions.
Note: See Clause 5.8 for the calculation of IPLV.
Low-pressure steam — a steam pressure less than 103.4 kPa (15 psig).
Net cooling/heating capacity — the mass flow rate of water multiplied by the difference in enthalpy of
water entering and leaving the cooler!heater.
Note: The net cooling/heating capacity is considered as usable capacity in the user’s system, eXpressed in kW
(MBH or tons), for both vapour compression chillers and absorption chillers.
Nonstandard part-load value (NPLV) — a value that represents the part-load efficiency of a chiller at nonstandard conditions,
Note: See Clause 5.8 for the calculation of NPLV.
Published rating — a statement, published in catalogues or as computer output, of the assigned values of those performance characteristics, under stated rating conditions, by which a unit can be chosen for a given application.
Note: Public ratings apply to each unit of a specific capacity, type, and design produced by the same manufacturer.
Reciprocating or scroll chiller — a factory-designed and prefabricated assembly of one or more reciprocating or scroll (positive displacement) compressors, condensers, and evaporators or coolers, with interconnections and accessories, that is used for chilling water.
Hermetic design — a centrifugal or rotary screw chiller that consists of a compressor and prime mover or drive, both of which are enclosed and operated in a refrigerant atmosphere.
Open design — a centrifugal or rotary screw chiller with a shaft or other moving part that extends through a casing and is driven by an outside power source.
Single-effect cyde — a process in which
(a) the dilute lithium bromide solution in the generator is concentrated when water is boiled off;
(b) water vapour is condensed in the condenser and returned to the evaporator; and
(C) concentrated lithium bromide is returned to the absorber where it can absorb water vapour flashed off in the evaporator.
Standard rating — a rating based on tests performed at standard rating conditions.
Thermal input rate — the heat content of the fuel, steam, or hot water, excluding the electrical input. Direct-fired — the gross heating content of the fuel based on the higher heating value, in kW (MBH). Indirect-fired — the heat content of the steam or hot water, in kW (MBH).
Water-coo’ed condenser — a refrigeration system component that condenses refrigerant vapour, usually in the shell, by rejecting heat to water circulating through tubes or coils contained in the shell.CSA C743-09 pdf free download.