Centre For Power Efficiency And Environmental

Procedure Number

NTPC

Protection, NOIDA

CENPEEP/EFF/TP/304

TITLE

Rev. 1/EMS

CENPEEP

LP Heater Performance Test

Issue Date: 20/04/2000

Page: 10

Of 14

2.

Heater Position (Horizontal/Vehicle

-

3.

LP Heater No.

LPH-1

LPH-2

LPH-3

4.

No. of Zones (De-superheating,

-

Condensing, Drain cooling)

5.

No. of Tubes

No.

6.

Surface Area

m2

7.

Tube Material

-

8.

Tube size (OD x Thickness)

mm

9.

Condensate Inlet Temp.

oC

10.

Condensate Outlet Temp.

oC

11.

Extraction Steam Flow

T/hr

12.

Extraction Steam Pressure

kg/cm2

13.

Pressure Drop (water side)

mwc

14.

Operating Level (Min/Normal/Max

mm

15.

TTD

oC

16.

DCA

oC

17.

Temperature Rise

oC

LP Heater Test Data

Annexure – II

Station: ......................

Unit: ................

Test Date: ..................

Run No. 1

Run No. 2

Run No. 3

SI.No.

MEASUREMENT

Unit

TIME-------DATA

TIME-------DATA

TIME-------DATA

		Centre For Power Efficiency And Environmental		Procedure Number
	NTPC		Protection, NOIDA	CENPEEP/EFF/TP/304
		TITLE		Rev. 1/EMS
	CENPEEP	LP Heater Performance Test		Issue Date: 20/04/2000
				Page: 11	Of 14
Condensate Entering LPH-1			0 C

1.Temp.

2.	Condensate Entering LPH-1		kg/cm2
	Pressure
3.	Condensate Entering LPH-2		0	C
	Temp.
4.	Condensate Entering LPH-2		kg/cm2
	Pressure
5.	Condensate Entering LPH-3		0	C
	Temp.
6.	Condensate Entering LPH-3		kg/cm2
	Pressure
7.	Condensate Leaving LPH-3		0	C
	Temp.
8.	Condensate Leaving LPH-3		kg/cm2
	Pressure
9.	LPH-1	Shell Press.	kg/cm2
10.	LPH-2	Shell Press.	kg/cm2
11.	LPH-3	Shell Press.	kg/cm2
12.	LPH-1 Extraction Temp.		0	C
13.	LPH-1 Extraction Press.		kg/cm2
14.	LPH-2 Extraction Temp.		0	C
15.	LPH-2 Extraction Press.		kg/cm2
16.	LPH-3 Extraction Temp.		0	C
17.	LPH-3 Extraction Press.		kg/cm2
18.	LPH-1 Drain Temp.		0	C
19.	LPH-2 Drain Temp.		0	C
20.	LPH-3 Drain Temp.		0	C
21.	Condensate Differential Press.		kg/cm2

							Annexure – III
		Control Room Readings
Station: ......................		Unit: ................				Test Date: ..................
Sl.No	Description				Test readings			Remarks
			Units		Run 1	Run 2	Run 3
					Time	Time	Time

				Centre For Power Efficiency And Environmental						Procedure Number
		NTPC			Protection, NOIDA					CENPEEP/EFF/TP/304
				TITLE					Rev. 1/EMS
	CENPEEP			LP Heater Performance Test					Issue Date: 20/04/2000
									Page: 12 Of 14
	1.		Load			MW
	2.		Main Steam Temp.			0 C
	3.		MS Pressure			kg/cm2
	4.		MS Flow			T/Hr.
	5.		Feed Water Flow			T/Hr
	6.		SH Attemperation Flow			T/Hr
	7.		RH Attemperation			T/Hr
			Flow
	8.		LPH –1 Extr. Steam			kg/cm2
			Pressure
	9.		LPH –1 Extr. Steam			0 C
			Temp.
	10.		LPH-1 Shell Pressure			kg/cm2
	11.		LPH-2 Shell Pressure			kg/cm2
	12.		LPH-3 Shell Pressure			kg/cm2
	13.		Condensate Temp			0 C
			LPH-1 In
	14.		Condensate Temp			0 C
			LPH-1 Out
	15.		Condensate Temp			0 C
			LPH-2 Out
	16.		Condensate Temp			0 C
			LPH-3 Out
	17.		LPH-1 Level			mm
	18.		LPH-2 Level			mm
	19.		LPH-3 Level			mm
	20.		Condenser Vacuum			mm Hg
	21.		Barometric Pressure			kg/cm2

Annexure - IV

DEFINITIONS

Terminal Temperature Difference (TTD) - The difference between the saturation temperature determined at the heater shell pressure and the temperature of the feedwater leaving heater.

Heater Drain Cooler Approach Temperature Difference (DCA) - The difference between the temperature of the drains leaving the heater and the temperature of the feedwater entering the heater.