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one. Intent: The objective of this standard is to supply a approach to testing factory-assembled thermal energy meters utilized to evaluate the thermal Electricity additional to or extracted from a liquid stream giving an HVAC program.
(b) testing that could take place the place appropriate instrumentation and cargo stability may be delivered. It is not the intent of this common to offer for testing in common industry installations, where steady-point out disorders in many cases are hard to reach and adequate provisions for measurement are not designed.
2.1 This standard applies to thermal storage units that are charged electrically and discharged thermally. The energy could be saved as latent heat or as sensible warmth or as a mix of the two.
1. Reason and SCOPE: This Normal set up uniform exam techniques for a laboratory check of a enthusiast or other air shifting unit to find out its aerodynamic general performance in terms of airflow charge, force development, electric power usage, air density, speed of rotation, and efficiency for ranking or assurance uses.
This regular prescribes a means of exam to ascertain the performance of Place heating and/or cooling thermal distribution methods underneath seasonal and style problems. The target would be to aid once-a-year Electricity calculations and heating and cooling gear potential calculations.
Scope: This guideline defines a standardized test equipment, technique, and treatments for experimentally conducting fractionation analyses of refrigerant blends that is certainly consistent with their thermodynamic vapor-liquid equilibrium (VLE) properties: a) to ascertain the worst circumstance fractionated formulated composition of refrigerant blends or b) to validate Computer system simulation packages utilized for fractionation analyses.
2.3 This standard isn't going to include a specification of standardized examination conditions beneath which the liquid-chilling deal have to operate. Examination disorders usually replicate the expected running conditions and therefore are customer specified.
are meant to transfer thermal Electricity from a single temperature amount to the next temperature stage to provide water in a thermostatically controlled temperature lower than or equal to one hundred eighty °F (82 °C).
two.one This guideline applies to spaces meant for human occupancy inside industrial and institutional structures apart from Individuals inside of dwelling models in household occupancies during which occupants are non-transient.
two.3 The methods During this typical are supposed mostly for laboratory tests of heating, ventilating, air-conditioning and refrigerating factors and devices, and do not essentially use to area tests of set up gear and devices.
two.one This normal features the specifications for exam instruments, services, installations and procedures, and Vape Deals methods of calculation for analyzing aerodynamic performance and seem generation of air shops and air inlets.
two.two This standard applies exactly where the whole stream stream in the refrigerant or the refrigerant/lubricant combination enters the calorimeter for a subcooled liquid and leaves for a superheated vapor (evaporator-type).
Scope: 2.one This standard relates to refrigerant mass move level measurements in laboratory and industry apps the place your entire movement stream of the refrigerant enters and exits the flowmeter either as a ‘vapor only’ or ‘liquid only’ point out all through knowledge recording.
1.two These check procedures could possibly be applied for a basis for rating such products, but It's not at all the objective of this common to specify strategies of creating rankings.