Quiero saber acerca de...

24520

Federal Register / Vol. 86, No. 87 / Friday, May 7, 2021 / Proposed Rules TABLE I.2EPCA REQUIREMENTS AND CORRESPONDING DOE ANALYSISContinued EPCA requirement
Corresponding DOE analysis
3. Total Projected Energy Savings
4. Impact on Utility or Performance
5. Impact of Any Lessening of Competition
6. Need for National Energy and Water Conservation
7. Other Factors the Secretary Considers Relevant

As detailed throughout this RFI, DOE
is publishing this document seeking input and data from interested parties to aid in the development of the technical analyses on which DOE will ultimately rely to determine whether and if so, how to establish the standards for circulator pumps and SVIL pumps.
II. Request for Information and Comments Pertaining to Potential Test Procedure In the following sections, DOE has identified a variety of issues on which it seeks input to assist in its evaluation of potential test procedures for circulator pumps and SVIL pumps, to ensure that any such test procedures would comply with the requirements in EPCA that they be reasonably designed to produce test results which reflect energy use during a representative average use cycle, without being unduly burdensome to conduct. 42 U.S.C.
6314a2
A. Scope and Definitions In the January 2016 TP final rule, DOE
adopted a definition for pump, as well as definitions for pump categories and other pump componentand configuration-related definitions. 10
CFR 431.462. Although circulator pumps are a style of pump, DOE did not define circulator pump. 81 FR 4086, 4094 Jan. 25, 2016. In addition, although DOE established a definition for inline pumps, the definition requires the pump to have a shaft input power greater than 1 hp and therefore excludes the SVIL pumps considered in this RFI
because SVIL pumps have a shaft input power less than 1 hp.6
The September 2016 CPWG
recommendations addressed the scope of a circulator pumps rulemaking.
6 As noted, an inline pump must have a shaft input power greater than or equal to 1 hp and less than or equal to 200 hp at BEP and full impeller diameter, in which liquid is discharged through a volute in a plane perpendicular to the shaft. See 10
CFR 431.462.

VerDate Sep<11>2014

17:32 May 06, 2021

Jkt 253001

Shipments Analysis.
National Impact Analysis.
Screening Analysis.
Engineering Analysis.
Manufacturer Impact Analysis.
Shipments Analysis.
National Impact Analysis.
Employment Impact Analysis.
Utility Impact Analysis.
Emissions Analysis.
Monetization of Emission Reductions Benefits.
Regulatory Impact Analysis.

Specifically, the CPWG recommended that the scope of the circulator pumps test procedure and energy conservation standards cover clean water pumps as defined at 10 CFR 431.462 distributed in commerce with or without a volute 7
and that are one of the following categories: Wet rotor circulator pumps, dry rotor close-coupled circulator pumps, and dry rotor mechanicallycoupled circulator pumps. The CPWG
also recommended that the scope exclude submersible pumps and header pumps. Docket No. EERE2016BT
STD0004, No. 58, Recommendations 1A, 2A and 2B at p. 12 The CPWG
also recommended the following definitions relevant to scope:
Wet rotor circulator pump means a single stage, rotodynamic, close-coupled, wet rotor pump. Examples include, but are not limited to, pumps generally referred to in industry as CP1.
Dry rotor, two-piece circulator pump means a single stage, rotodynamic, singleaxis flow, close-coupled, dry rotor pump that: 1 Has a hydraulic power less than or equal to five horsepower at best efficiency point at full impeller diameter, 2 is distributed in commerce with a horizontal motor, and 3 discharges the pumped liquid through a volute in a plane perpendicular to the shaft. Examples include, but are not limited to, pumps generally referred to in industry as CP2.
Dry rotor, three-piece circulator pump means a single stage, rotodynamic, singleaxis flow, mechanically-coupled, dry rotor pump that: 1 Has a hydraulic power less than or equal to five horsepower at best efficiency point at full impeller diameter, 2
is distributed in commerce with a horizontal motor, and 3 discharges the pumped liquid through a volute in a plane perpendicular to the shaft. Examples include, but are not limited to, pumps generally referred to in industry as CP3.
Horizontal motor means a motor that requires the motor shaft to be in a horizontal position to function as designed under typical operating conditions, as specified in manufacturer literature.
7 Volutes are also sometimes referred to as a housing or casing.

PO 00000

Frm 00008

Fmt 4702

Sfmt 4702

Submersible pump means a pump that is designed to be operated with the motor and bare pump fully submerged in the pumped liquid.
Header pump means a pump that consists of a circulator-less-volute intended to be installed in an original equipment manufacturer OEM piece of equipment that serves as the volute.

Docket No. EERE2016BTSTD0004, No. 58, Recommendations 2B, 3A, and 3B at p. 23
DOE notes that the orientation of the motor is used to differentiate IL pumps from other pumps. As noted, the definition of IL pump excludes pumps that are distributed in commerce with a horizontal motor. 10 CFR 431.462. DOE
currently defines a horizontal motor as a motor that requires the motor shaft to be in a horizontal position to function as designed, as specified in the manufacturer literature. Id.
The definition of horizontal motor recommended by the CPWG includes under typical operating conditions to qualify function as designed. The CPWG stated that this qualifier was added to address the potential that a motor would not be covered as a horizontal motor if a manufacturer were to advertise its circulator as being able to be installed in a non-horizontal orientation under certain conditions, such as high operating pressure i.e., conditions other than typical conditions. Docket No. EERE2016
BTSTD0004, No. 64 at pp. 7583 The CPWG stated that the requirement to consider motor installation in the context of typical operating conditions, as specified in the manufacturer literature, would address this potential.
Docket No. EERE2016BTSTD0004, No. 66 at pp. 5557
The definition for submersible pump is consistent with that already applicable to pumps in 10 CFR 431.462.
The recommended definition for header pump is discussed in section II.A of this document.

E:FRFM07MYP1.SGM

07MYP1