Feed Water Heater Energy Balance: Closed Systems

  • Thread starter Thread starter ricky agarwal
  • Start date Start date
  • Tags Tags
    Heater Water
AI Thread Summary
The discussion focuses on calculating the energy balance for closed and open feed water heaters in a regenerative power plant. It involves a specific scenario where steam is supplied at 30 bar and 300°C, with a condenser pressure of 0.08 bar and extraction points at 3.5 bar for the closed heater and 0.7 bar for the open heater. Participants seek guidance on applying energy balance equations and determining enthalpies around the feed heaters. The calculation aims to find the thermal efficiency of the plant while neglecting pump work. Understanding these principles is crucial for optimizing the performance of regenerative power systems.
ricky agarwal
Messages
3
Reaction score
0
energy balance for closed feed water heaters
 
Science news on Phys.org
yes...i would like to know how to apply close feed water heaters along with open feed water heater and what are energy balance equation we can apply ? if possible make suitable figure and how to get enthalpies around feed heaters?
 
Apply them to what? You're going to need to be a whole lot more descriptive about what you are asking in order for us to be able to help you.
 
applying them to power plant
ok...i type the whole question for you sir... to make you understand the problem better...
A regenerative plant operates with steam supplied at 30 bar and 300 C,and condenser pressure of 0.08 bar. The extraction point for two heater (one close and one open)are at 3.5 bar and 0.7 bar resp. calculate the thermal efficiency of the plant neglecting pump work.
 

Thread 'Using battery energy to heat a battery…'

Problem: You’re an Uber driver with a Tesla Model 3. Today’s low: 30F, high: 65F. You want to reach a USD$ profit target in the least number of hours, but your choices could have added cost. Do you preheat the battery only when you are headed to the charging station (to increase the charging rate by warming the battery — however the battery might not be “warm enough” when your reach the charger and thus slower charging rates), or do you always “navigate to the charger” the entire day (which...
View full post »
Thread 'Is Callen right in claiming dQ=TdS for all quasi-static processes?'

Thread 'Is Callen right in claiming dQ=TdS for all quasi-static processes?'

Hello! I am currently reading the second edition of Callen's Thermodynamics and an Introduction to Thermostatistics, and I have a question regarding Callen's definition of quasi-static. On page 96, Callen says: Another way of characterizing Callen's definition is that a process is quasi-static if it traces out a continuous curve in the system's configuration space. So far it's all well and good. A little later, Callen claims that the identification of $$TdS$$ as the heat transfer is only...
View full post »

Thread 'Basic thermal energy transfer physics: Insulation value in open airways vs sealed airways'

Been around 40 years since I took basic physics in college and while I remember doing some examples of insulation values / energy conduction, I doubt I could to the math now even if I could find the formulas. I have some some corrugated plastic sheet (think of the plastic signs you see on the side of the road) that is used in bee hives. Also have some used in a green house though a bit different in dimensions than this example but the general approach should still apply. Typically, both...
View full post »

Similar threads

I Measuring Steam Condensate from my Steam Cleaner
Replies
8
Views
2K
Seebeck generator from placing water heater next to freezer
Replies
7
Views
2K
B Why does hot water rise to the top of a water heater?
2
Replies
66
Views
4K
B Filling a bathtub (Hot water to cold water exchange)
Replies
6
Views
5K
Does the volume of water affect efficiency of heater?
Replies
7
Views
2K
Solar Water Heater: How It Works & Energy Transfers
Replies
3
Views
1K
I A System is the transfer of energy between two mediums?
Replies
14
Views
2K
Calculating total heat transfer by solar water heater
Replies
2
Views
3K
Cotton Insulation vs Glad Wrap Bag for solar water heater?
Replies
1
Views
1K
Energy Required to Evaporate Water
Replies
23
Views
2K

Hot Threads

Recent Insights

Back
Top