CSA Group CSA C506:23 National Standard of Canada Benchmark energy factor (BEF) for industrial air movement systems

Preface

This is the first edition of CSA C506, Benchmark energy factor (BEF) for industrial air movement systems.

CSA Group acknowledges that the development of this Standard was made possible, in part, by the financial support of BC Hydro, Efficiency Manitoba, Electricity Canada, Fortis BC Electric, Hydro Québec, and Northwest Energy Efficiency Alliance (NEEA).

This Standard was prepared by the Subcommittee on Benchmark Energy Factor for Industrial Fan system, under the jurisdiction of the Technical Committee on Energy Efficiency of Industrial Equipment and Systems and the Strategic Steering Committee on Performance, Energy Efficiency, and Renewables, and has been formally approved by the Technical Committee.

This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.

Notes:

1) Use of the singular does not exclude the plural (and vice versa) when the sense allows.

2) Although the intended primary application of this Standard is stated in its Scope, it is important to note that it remains the responsibility of the users of the Standard to judge its suitability for their particular purpose.

3) This Standard was developed by consensus, which is defined by CSA Policy governing standardization — Code of good practice for standardization as “substantial agreement. Consensus implies much more than a simple majority, but not necessarily unanimity”. It is consistent with this definition that a member may be included in the Technical Committee list and yet not be in full agreement with all clauses of this Standard.

4) To submit a request for interpretation of this Standard, please send the following information to [email protected] and include “Request for interpretation” in the subject line:

a) define the problem, making reference to the specific clause, and, where appropriate, include an illustrative sketch;

b) provide an explanation of circumstances surrounding the actual field condition; and

c) where possible, phrase the request in such a way that a specific “yes” or “no” answer will address the issue.

Committee interpretations are processed in accordance with the CSA Directives and guidelines governing standardization and are available on the Current Standards Activities page at standardsactivities.csagroup.org.

5) This Standard is subject to review within five years from the date of publication. Suggestions for its improvement will be referred to the appropriate committee. To submit a proposal for change, please send the following information to [email protected] and include “Proposal for change” in the subject line:

a) Standard designation (number);

b) relevant clause, table, and/or figure number;

c) wording of the proposed change; and

d) rationale for the change.

1 Scope

1.1 Inclusions

This Standard is intended for industrial air handling systems with the following characteristics:

a) systems with energy consumption greater than 500 000 kWh per year;

b) systems with air flow greater than 9.4 m3/s (20 000 cfm);

c) air movement systems with a maximum energy output limit of 25 kJ/kg of air, which is equivalent to a maximum pressure ratio of 1.3 per stage;

d) flow velocity of ≤100 m/s (≤20 000 fpm), which characterises the flow as incompressible;

e) any single parallel or series configured for air supply, air collection, exhaust, induced draft, or forced draft applications; and

f) for material handling applications, using dilute-phase conveying, with air-to-solid loading ratio ≥2.0 by weight.

1.2 Exclusions

This Standard is not intended to be used for air movement systems with the following characteristics:

a) systems without partition, i.e., ceiling fans, crossflow fans, and air curtain units;

b) systems with partition and free inlet and outlet, i.e., sidewall fans;

c) multi-room building ventilation systems;

d) systems that have a pressure ratio greater than 1.3;

e) for material handling application using dense phase conveying with air-to-solid loading ratio <2.0 by weight; and

f) applications with air temperature greater than 250 ᵒ

1.3 Terminology

In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged tosatisfy in order to comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

1.4 Measurements

The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.