ASME PTC 12.1

ASME PTC 12.1

Closed Feedwater Heaters
Closed Feedwater Heaters
Closed Feedwater Heaters
Closed Feedwater Heaters

: In stock

Format
$150.00

Standard Details

Scope:
This Code applies to all horizontal and vertical heaters except those with partial pass full-length drain cooling zones. The heater design is based on a specific operating condition that includes flow, temperature, and pressure. This specific condition constitutes the design point that is found on the manufacturer’s feedwater heater specification sheet.

Generally, it is not possible to conduct the test at the exact design point. Therefore, it is necessary to predict the heater performance by adjusting the design parameters for the actual test conditions. Methods of calculating the predicted heater performance are presented in this Code. These predicted values shall then be compared to corresponding measured test values.

Horizontal heaters with partial pass submerged drain cooling zones and vertical channel-up heaters with partial pass drain cooling zones are not applicable to this Code. In those designs, only a portion of the feedwater passes through the drain cooling zones, therefore there are two flow streams with different temperature profiles.

Duplex heaters are applicable as long as the feedwater temperatures, including the temperature between stages, are measurable, and the shell sides are isolated from each other and verified to be at different stage pressures.

This Code is applicable for multitube pass heaters of single zone design. Multizone partial pass heaters cannot be tested under this Code, unless the entire first pass is contained in a single zone. This Code also does not apply to header type heaters.

Organization: ASME International
Document Number: asme ptc 12.1
Publish Date: 2015-01-01
Page Count: 74
Change Type: COMPLETE REVISION
Available Languages: EN
DOD Adopted: NO
ANSI Approved: YES
Most Recent Revision: YES
Current Version: YES
Status: Active

Preview

Publication Date: 01/01/2015 - Complete Document

Description :

This Code applies to all horizontal and vertical heaters except those with partial pass full-length drain cooling zones. The heater design is based on a specific operating condition that includes flow, temperature, and pressure. This specific condition constitutes the design point that is found on the manufacturer’s feedwater heater specification sheet.

Generally, it is not possible to conduct the test at the exact design point. Therefore, it is necessary to predict the heater performance by adjusting the design parameters for the actual test conditions. Methods of calculating the predicted heater performance are presented in this Code. These predicted values shall then be compared to corresponding measured test values.

Horizontal heaters with partial pass submerged drain cooling zones and vertical channel-up heaters with partial pass drain cooling zones are not applicable to this Code. In those designs, only a portion of the feedwater passes through the drain cooling zones, therefore there are two flow streams with different temperature profiles.

Duplex heaters are applicable as long as the feedwater temperatures, including the temperature between stages, are measurable, and the shell sides are isolated from each other and verified to be at different stage pressures.

This Code is applicable for multitube pass heaters of single zone design. Multizone partial pass heaters cannot be tested under this Code, unless the entire first pass is contained in a single zone. This Code also does not apply to header type heaters.

Document Type : Complete Document

Language : English

Page Count : 74

Publication Date : 01/01/2015

Revision : 15

Status : Current

Title : Closed Feedwater Heaters

Publication Date: 12/29/2000 - Complete Document Changes Incorporated

Description :

This Code applies to all horizontal and vertical heaters except those with partial pass drain cooling zones. Designs with partial pass drain cooling zones are horizontal heaters with submerged drain cooling zones, and vertical channel-up heaters with drain cooling zones. In those designs, only a portion of the feedwater passes through the drain cooling zones; therefore, there are two feedwater flow streams with different temperature profiles.

A feedwater heater is designed to accomplish heat transfer between fluids. The heater design is based on a specific operating condition that includes flow, temperature, and pressure. This specific condition constitutes the design point that is found on the manufacture’s feedwater heater specification sheet.

It is not feasible to expect that the test will be conducted at the design point. Therefore, it is necessary to predict the heater performance by adjusting the design parameters for the test conditions. Methods of calculating the predicted heater performance are presented in the Code. These predicted values shall then be compared to corresponding measured test values.

Document Type : Complete Document

Language : English

Page Count : 85

Publication Date : 12/29/2000

Revision : 00

Status : Historical

Supplement : W/

Title : Closed Feedwater Heaters

Publication Date: 12/29/2000 - Base Document

Description :

This Code applies to all horizontal and vertical heaters except those with partial pass drain cooling zones. Designs with partial pass drain cooling zones are horizontal heaters with submerged drain cooling zones, and vertical channel-up heaters with drain cooling zones. In those designs, only a portion of the feedwater passes through the drain cooling zones; therefore, there are two feedwater flow streams with different temperature profiles.

A feedwater heater is designed to accomplish heat transfer between fluids. The heater design is based on a specific operating condition that includes flow, temperature, and pressure. This specific condition constitutes the design point that is found on the manufacturer's feedwater heater specification sheet.

It is not feasible to expect that the test will be conducted at the design point. Therefore, it is necessary to predict the heater performance by adjusting the design parameters for the test conditions. Methods of calculating the predicted heater performance are presented in the Code. These predicted values shall then be compared to corresponding measured test values.

Document Type : Base Document

Language : English

Page Count : 85

Publication Date : 12/29/2000

Revision : 00

Status : Historical

Title : Closed Feedwater Heaters

Publication Date: 01/01/1978 - Complete Document

Document Type : Complete Document

Language : English

Page Count : 49

Publication Date : 01/01/1978

Revision : 78

Status : Historical

Title : Closed Feedwater Heaters

Quick Add

$423.00
$289.00
$485.00