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Significance and Use
5.1 Heat Gain to Space—This test method determines the heat gain to the space from a hood/appliance system.
Note 2: To maintain a constant temperature in the conditioned space, this heat gain must be matched by space cooling. The space sensible cooling load, in tons, then equals the heat gain in Btu/h divided by the conversion factor of 12 000 Btu/h (3.412 W) per ton of cooling. Appliance heat gain data can be used for sizing air conditioning systems. Details of load calculation procedures can be found in ASHRAE, see Ref ( and Ref )(). The calculation of associated cooling loads from heat gains to the test space at various flow rates can be used along with other information by heating, ventilation, air conditioning (HVAC), and exhaust system designers to achieve energy-conservative, integrated kitchen ventilation system designs.
5.2 Parametric Studies:
5.2.1 This test method also can be used to conduct parametric studies of alternative configurations of hoods, appliances, and replacement air systems. In general, these studies are conducted by holding constant all configuration and operational variables except the variable of interest. This test method, therefore, can be used to evaluate the following:
18.104.22.168 The overall system performance with various appliances, while holding the hood and replacement air system characteristics constant.
5.2.2 Entire hoods or characteristics of a single hood, such as end panels, can be varied with appliances and replacement air constant.
5.2.3 Replacement air characteristics, such as makeup air location, direction, and volume, can be varied with constant appliance and hood variables.
1.1 This test method covers the determination of appliance heat gain to space derived from the measurement and calculation of appliance energy consumption, energy exhausted, and energy to food, based on a system energy balance, parametric evaluation of operational or design variations in appliances, hoods, or replacement air configurations.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
F1704 Test Method for Capture and Containment Performance of Commercial Kitchen Exhaust Ventilation Systems
ASHRAE StandardASHRAE Terminology of Heating, Ventilation, Air-Conditioning, and Refrigeration ASHRAEGuideline2-198 Engineering Analysis of Experimental Data
ANSI StandardsANSI/ASHRAE51andANSI Laboratory Method of Testing Fans for Rating
ICS Number Code 97.040.20 (Cooking ranges, working tables, ovens and similar appliances)
ASTM F2474-14, Standard Test Method for Heat Gain to Space Performance of Commercial Kitchen Ventilation/Appliance Systems, ASTM International, West Conshohocken, PA, 2014, www.astm.orgBack to Top