Fluid Heater or feedwater system can cause damage to the Steam Generator/Fluid Heater. 300, 350, and 400 is 12 lbs/day per 100 hp at 100% load and 24 hrs/day. For Coil Guard CT-10, the condensate return line treatment, the dosage is based on the following:
Agreement of HP heater: vertical head down with U-Tube structure 5. The connection between the U-tube and tube sheet shall use automatic welding and explosion expansion technology 6. Insert pipe shall be used for protection of water flushing at heating tube
Feedwater Heater Drain and MSR Drain Pumps The drain pumps are horizontal pumps driven by a constant speed electric motor. High Pressure Feedwater Heaters The HP FWHs are horizontal shell and tube design constructed of carbon steel with
High Pressure Feedwater System The purpose of the high pressure (HP) feedwater system is to increase the pressure and High water level in the feedwater heater lowers efficiency, and is an indicator that the heater has tube leaks requiring offline maintenance.
A feedwater heater is basically a heat exchanger where heat is transferred from the steam to the the high pressure turbine receives steam at 20 bar, 3000C. After expansion to 7 bar, the steam is reheated to 3000C and expands in an
Stress contoursof HP feedwater heater with cracking NL-4 Figure 3. K I vs. a for 3 different loadings Crack depth Figure 1: Analyzed section of a typical Stress intensity factor Observed cracking region P ROJECT BULLETI N Material I nte grit y Sol ut ions, Inc.
The header type, high pressure feedwater heater has been developed to meet the increasingly severe operating conditions in large turbogenerator plants. These may include high heat rates, sudden load variations and frequent start-ups and shut-
The other set, called high- pressure heater, heats the feedwater coming from the boiler feedwater pump so that it is near saturation when it enters the boiler. Both systems work with same way, with the exception of the heating fluid.
High Pressure Feedwater Heater Energy Control –For Regenerative Rankine Cycles With Reheat •Helps coal units meet the load challenges imposed by generation shift towards intermittent renewable energy sources and combined cycle
REGENERATIVE BOILER FEEDWATER HEATER ECONOMICS William L. Viar, PE waterland, Viar & Associates, Inc. Wilmington, Delaware ABSTRACT The basic Rankine Vapor Cycle has been r,~peatedly "high-pressure" allude to heating steam sources.
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Feedwater Pumps k. High Pressure Heaters. Objectives 3. Describe the following flowpaths of the Condensate and Feedwater system: a. the heater • Drains cascade to a lower pressure heater Objective 2. Feedwater Pumps • Two steam driven pumps