Table of Contents
- 1 How do you keep the heat level of a condenser?
- 2 How is steam condensed in a condenser?
- 3 What is hot well in steam turbine?
- 4 What is hot well?
- 5 How hot is steam in a power plant?
- 6 What is condenser cooling water?
- 7 What is the function of condenser in steam power plant?
- 8 How much pressure should a power plant condenser pressure be reduced?
How do you keep the heat level of a condenser?
Set Points Of Levels In Condenser Hot Well
- Generally we try to maintain hot well level at 0 MM or normal level.
- If hot well level falls below 0 mm, normal make up valve will open and allow DM water to condenser in order to maintain normal level.At Low level this normal make up valve will be fully opened.
How is steam condensed in a condenser?
The fuel is fired in a boiler which converts the heat released from combustion to steam at high pressure and temperature. This steam is then expanded through a turbine for generation of electrical power. Exhaust steam from the turbine is condensed in a heat exchanger and then returned via the feed pumps to the boiler.
What is the temperature of the steam at the inlet of the turbine in units of C?
Temperature of Steam in a Turbine
| Bibliographic Entry | Result (w/surrounding text) | Standardized Result |
|---|---|---|
| Three Alsthom Steam Turbine Generators 17Mw 50Hz. Warp Machinery Exchange. | “Make Alsthom Model T167-215 Inlet Pressure 40 bar Inlet Temperature 465°C ….” | 465 °C |
How do you calculate cooling water in a condenser?
Divide the cooling rate that you need, measured in British thermal units (BTUs) per hour by this answer. For example, if the chiller must absorb 3,840,000 BTUs each hour: 3,840,000 ÷ 13,000 = 295.4. This is the chiller’s minimum cooling rate, measured in gallons per minute.
What is hot well in steam turbine?
Definition of hot well 1 : hot spring. 2 : a reservoir in a condensing steam-engine or turbine installation for receiving the warm condensed steam drawn from the condenser.
What is hot well?
hot well in American English noun. a tank or reservoir in which hot water is collected before being recirculated, esp. condensed steam about to be returned to a boiler.
At what temperature does steam condense?
At 100 °C, the steam condenses and turns into liquid water.
What is heat rate in steam power plant?
The heat rate is defined as the total amount of energy required to produce one kilowatt-hour (kWh) of electricity by an electric generator or power plant. It is the input rate required for generating unit power. The lower the heat rate higher the efficiency.
How hot is steam in a power plant?
Here the steam is superheated to 1,000 °F (540 °C) to prepare it for the turbine. Plants that use gas turbines to heat the water for conversion into steam use boilers known as heat recovery steam generators (HRSG).
What is condenser cooling water?
A Water-Cooled Condenser is a heat exchanger that removes heat from refrigerant vapour and transfers it to the water running through it. In doing so, the vapour condenses and gives up heat to the water running inside the tube.
Is temperature constant in a condenser?
Temperature profile inside the condenser The temperature of the refrigerant decreases during the desuperheating and sub-cooling processes, but remains constant during the condensing process (see Figure 7.3). A temperature increase results in a smaller flow of the secondary fluid for the same heat load.
What is hot well in power plant?
The condenser hotwell serves as a water reservoir for the turbine cycle. When hotwell level reaches the low point, a valve opens to supply make-up water to the cycle. When hotwell level reaches the high end of the level range, a dump valve opens to move the condensate from the hotwell to a condensate storage tank.
What is the function of condenser in steam power plant?
A steam condenser is a closed vessel in which steam is condensed by abstracting the heat by cooling it with water and where the pressure is maintained below atmospheric pressure. The condensed steam is known as condensate. The efficiency of the steam power plant is increased by the use of a condenser.
How much pressure should a power plant condenser pressure be reduced?
For example, a power plant with a feedwater flow rate of 2.5 million pounds per hour and condenser pressure of 3 inches Hg would see a heat rate improvement of nearly 6\% if station engineers could reduce the condenser pressure to 1 inch Hg.
What are the advantages of a good steam condenser?
Good steam condenser performance contribute a lot to total thermal power efficiency. As it was mentioned above, it allows to keep high condenser vacuum and avoid boiler tubes failures which results in high energy conversion. For maintaining clean condenser tubes at all times consider the use of an automatic tube cleaning system like EQOBRUSH.
What is the best condenser performance for Best power plant efficiency?
Optimal condenser performance for best power plant efficiency. The ongoing challenge in thermal power plants is to maximize their energy conversion efficiency and capacity. Typically the efficiency is maxed out at about 38\%.