### boiler evaporation rat

Boiler Horsepower What is the boiler horsepower of a boiler generating 21,500 lbs of steam per hour at 155 psi? The factor of evaporation is 1.08. BHP = (LB/HR*fe)/34.5 BHP Boiler Horsepower BHP = (LB/HR*fe)/34.5 Lb/Hr Pounds per Hour BHP = 21500 * 1.08 / 34.5 Fe Factor of Evaporation …

### What is boiler evaporation rate? - Answe

That is equivalent to 34.5 pounds of steam from and at 212 F. Conversion of boiler conditions (factor of evaporation) output and horsepower to atmospheric steam conditions is the norm for ...

### Evaporation - Wikiped

where P 1, P 2 are the vapor pressures at temperatures T 1, T 2 respectively, ΔH vap is the enthalpy of vaporization, and R is the universal gas constant. The rate of evaporation in an open system is related to the vapor pressure found in a closed system. If a liquid is heated, when the vapor pressure reaches the ambient pressure the liquid ...

### Boiler Formulas | Johnston Boil

Boiler Horsepower What is the boiler horsepower of a boiler generating 21,500 lbs of steam per hour at 155 psi? The factor of evaporation is 1.08. BHP = (LB/HR*fe)/34.5

### A 21286104 m 3 hr B 22186104 m 3 hr C 21826104 m 3 hr D .

A water tube boiler has a capacity of 1000 kg/hr of steam. The factor of evaporation is 1.3,boiler rating is 200% boiler efficiency is 65%, heating surface area is 0.91 m 2 per bo. Hp. And the heating value of fuel is 18,400 kCal/kg. The total coal available in the bunker is 50,000 kg. Determine the no. Of hrs. to consume the available fuel. A. 853.36 hrs B. 706.57 hrs C. 979.46 hrs D. 100.75 ...

### United States Environmental Protection Agency | US E

anthracite coal burned were five percent (5%), then the PM10 emission factor would become 2.3 x 5, or 11.5 pounds, of PM10 emitted per ton of anthracite coal burned (before control). 2. An “S” accompanying an emission factor means that this factor is the weighted average sulfur content of the fuel burned, expressed as a percent. See, for ...

### power factor for boile

To be able to determine electrical power on alternating current (AC) systems, you need to know the power factor of the electrical load. View More; Boiler Formulas - Johnston Boiler. Factor of Evaporation Water enters the boiler at 225°F. The boiler pressure is 100 psi and the boiler water temperature is 338°F. The latent heat is 881 Btu. View ...

### Factors Of Evaporati

In the table of " Factors of Evaporation, " the factor corresponding to a steam temperature of 302° and a feed temperature of 158° (which are the numbers in the table nearest to the given ones), is 1.09. ... Cylinder boilers should be from 10 to 12 times the diameter; flue boilers from 5 to 6 times the diameter; tubular boilers, and the ...

### boiler factor of evaporation and equivale

boiler factor of evaporation and equivalent. Factor of evaporation in boiler definition. 2018-8-8 · Factor of evaporation in boiler definition - 3080411 This will be 30 pounds multiplied by the factor of evaporation for 70 pounds gauge pressure and 100 degrees feed temperature, or 1.1494. 30 × 1.1494 = 34.482, or approximately 34

### boiler factor of evaporation and equivale

The ratio of the amount of heat absorbed per kg of steam in the boiler, to the amount of heat absorbed in producing 1 kg of steam at 100°C from water at 100°C is called the: Select one: A. Dryness fraction B. Equivalent evaporation C. Factor of evaporation D. Efficiency of steam generation E. …

### Performance of Boiler: Effiency, Power and Heat Balance She

May 12, 2020· The factor is known as factor of evaporation and is usually denoted by Fe. Its value is greater than unity for all boilers. In S.I. units, the value of latent heat at a …

### Equivalent Evaporation | Advanced Steam Tracti

Jun 23, 2017· Equivalent Evaporation might be more simply defined as “the quantity of water at 100°C that a boiler can convert into dry/saturated steam at 100°C from each kJ of energy that is applied to it. This defines it in terms of kg (of water/steam) per kJ of energy.

### Precipitation - Wikiped

Precipitation is a major component of the water cycle, and is responsible for depositing most of the fresh water on the planet.Approximately 505,000 km 3 (121,000 mi 3) of water falls as precipitation each year, 398,000 km 3 (95,000 cu mi) of it over the oceans. Given the Earth's surface area, that means the globally averaged annual precipitation is 990 millimetres (39 in).

### Factor of Evaporation Part-15 Unit-1 (TEGD) - YouTu

Feb 25, 2019· Factor of Evaporation Part-15 Unit-1 (TEGD) Your's Scientific Buddy. ... Problem 1 based on Boiler efficiency||Unit-1| ... 12:43. Evaporation and ...

### Boiler Ratings | Spirax Sar

Example 3.5.1. A boiler has a ‘from and at’ rating of 2 000 kg/h and operates at 15 bar g. The feedwater temperature is 68°C. The use of Equation 3.5.1 will determine a factor to produce the same result: Note: These values are all from steam tables.

### What is the difference between boiler and evaporator? - Quo

Sep 30, 2016· Well both turn liquids into gasses….duh! But here stops the similarity. Both differ in technical and operational aspects. Writing them below: * Operating temperature: Both boilers and evaporators turn liquids into gasses but at different temperatu...

### Johnston Boiler Company Boiler Glossa

Nov 03, 2006· The factor of evaporation is 1.08. BHP = (LB/HR*fe)/34.5 BHP = (LB/HR*fe)/34.5 BHP = 21500 * 1.08 / 34.5 BHP = 673 Where, BHP boiler horsepower Lb/Hr pounds per hour Fe factor of evaporation (can be assumed to be equal to 1) CYCLE OF CONCENTRATION OF BOILER WATER

### What are boiler efficiency and boiler evaporation rat

Value of evaporation ratio for different types of boiler is listed as-a) Coal fired boiler- 4.0-6.0. b) Oil fired boiler- 13.0-14.5 . c) Gas fired boiler- 11.0-13. More information about the questions of boiler, such as boiler capacity, how to calculate boiler price and cost, etc. …

### Boilers - SlideSha

Jun 25, 2012· 1. Boilers 2. Boilers Boiler is an apparatus to produce steam. ... 12. advantages of fire tube boilers are asfollows.• (i) Low cost• (ii) Fluctuations of steam demand can be met easily• (iii) It is compact in size. ... Factor of evaporation • It is defined as the ratio of the heat received by 1 kg of water at the working conditions to ...

### A water tube boiler has a capacity of 1000 kghr of steam .

379. A water tube boiler has a capacity of 1000 kg/hr of steam. The factor of evaporation is 1.3, boiler rating is 200%, boiler efficiency is 65% and heating surface area is 0.91 m 2 per bo.Hp. And the heating value of fuel is 18,400 kCal/kg. The total coal available in the bunker is 50,000 kg.

### Factor of evaporation in boiler definiti

This will be 30 pounds multiplied by the factor of evaporation for 70 pounds gauge pressure and 100 degrees feed temperature, or 1.1494. 30 × 1.1494 = 34.482, or approximately 34.5 pounds. Hence, oneboiler horse power is equal to an evaporation of 34.5 pounds of water per hour from and at 212 degrees Fahrenheit.