Sprinkler K Factor & Flow Through Sprinkler Head

Online / E-Learning MEP Course
Mechanical (HVAC), Electrical and Plumbing , Fire Fighting

(Details in Description Box Link available for Out Line of Course and contact )

Subscribe AfreenAli in Youtube

Prepared by S M Afreen Ali ( BS / MSc in Engineering)

Sprinkler K Factor & Flow Through Sprinkler Head

Generally the NFPA 13 "K factor" for Sprinkler is K=5.6 (Ordinary Hazard )

Generally sprinklers are 1/2"  connection size.   

You can't use less than 5.6 k for Ordinary hazard. 

 In light hazard, you can go down to 2.8 k before you need to put a strainer on the line.

Many sprinklers are rated with a K factor that describes their performance. This is defined as:

Q = K √(P) 

Where:

Q – flow in gpm

K – nozzle discharge coefficient of K-factor for head in gpm/psi

P – pressure in psi


P- 40 psi ( 2.76 Bar)

K- 5.6

Q = K √(P) 

Q = 5.6 √(40)                    note *  5.6 X  6.32

Q = 35.41 gpm

Online / E-Learning MEP Course Mechanical (HVAC), Electrical and Plumbing , Fire Fighting OUT LINE of Course and many more

Online / E-Learning MEP Course

Mechanical (HVAC), Electrical and Plumbing , Fire Fighting
OUT LINE of Course and many more

Link for Details outline in Hindi https://youtu.be/K4n2Zdnqxt4
Link for Details outline in English https://youtu.be/CIcgmRUq7Ks
Eligibility- Mechanical Diploma, BE, B-Tech , ME , M-Tech , OR Mechanical Student (Only for Mechanical Building System)
Fee – 400 USA Dollars (Class 3 to 5 Student) 
Contact –Only Whatsapp -00966-562966569
S M Afreen Ali MEP Engineer / Project Coordinator
Subscribe on Youtube AfreenAli 

Course (Duration: 60 to 80 Hours ) 
Basic Engineering Concept and Knowledge 
1. Basic Concept of Architectural Drawing , Master Plan , Plan Layout, Section and Elevation
2. Basic Concept of Structural Drawings , Plan Layout, Section and Elevation
3. Basic Concept of Infra Structure drawings, contour level, Plan Layout , Storm Water, Sewerage System, Lift Station, Sweet Water System / Raw water system, Chiller Plant , Chiller Piping and Details 

MEP building the systems—Mechanical, Electrical, Plumbing and Fire fighting

Mechanical / HVAC System
1. Complete Design HVAC System(HVAC Load Calculation for Whole Building (Such as Rooms , Corridor , Lift Area , Car Parking , Kitchen , Stair Case pressure System and Toilets ) as per Code
2. Understanding Drafting layout 
3. Drafting Course 
4. Different Project E-learning Design and Excavation (Dwell Villas , Hospital , Sport Complex , Festival Hall/ Cinema , School /College and Mosque) ,Drawings Project Material and Books will be provided
5. BOQ
6. Specification
7. Design Drawing , Shop Drawing and As Built Drawing
8. Testing and Commissioning Procedure
9. Inspection Report, Material Inspection Report, Memo ,NCR and So on
Mechanical / PLUMBING SYSTEM
1. Complete Design Plumbing System as per Plumbing Code
2. Understanding Drafting layout 
3. Drafting Course 
10. Different Project E-learning Design and Excavation (Dwell Villas , Hospital , Sport Complex , Festival Hall/ Cinema , School /College and Mosque) ,Drawings Project Material and Books will be provided.
4. BOQ
5. Specification
6. Design Drawing , Shop Drawing and As Built Drawing
7. Testing and Commissioning Procedure
8. Inspection Report, Material Inspection Report, Memo ,NCR and So on
Mechanical / Fire Fighting System
1. Complete Design Fire Fighting System as per NFPA Code
2. Understanding Drafting layout 
3. Drafting Course 
4. Dry and Wet System 
11. Different Project E-learning Design and Excavation (Dwell Villas , Hospital , Sport Complex , Festival Hall/ Cinema , School /College and Mosque) ,Drawings Project Material and Books will be provided
5. BOQ
6. Specification
7. Design Drawing , Shop Drawing and As Built Drawing
8. Testing and Commissioning Procedure
9. Inspection Report, Material Inspection Report, Memo ,NCR and So on
Electrical System
1. Design Concept and Understanding
2. Understanding Drafting layout 
3. Drafting Course 
4. BOQ
5. Specification
6. Design Drawing , Shop Drawing and As Built Drawing
7. Testing and Commissioning Procedure
8. Inspection Report, Material Inspection Report, Memo ,NCR and So on

• So many material will be provided 

What is main different between HVAC , HVACR ( HVAC vs HVACR)

AfreenAli Subscribe in youtube 

What is main different between HVAC vs HVACR 

Consider Refrigeration to be a part of HVAC. When you say HVAC or HVACR you are actually including everything involved in heat transfer. ... HVAC stands for Heating Ventilation Air Conditioning, which is high temperature refrigeration. Same concept, but different operating temperature ranges, equipment, and refrigerants.

Fundamentally there is no difference as its all about heat transfer. Consider Refrigeration to be a part of HVAC. When you say HVAC or HVACR you are actually including everything involved in heat transfer. So there is no difference really. As regard Refrigeration mechanic and HVAC mechanic it is experience which can set them apart. A refrigeration technician may have only worked on refrigeration units. HVAC technician may have worked on a number of elements within the HVAC trade. Its the same field.

HVAC Types of Fan and Specification

Subscribe in Youtube AfreenAli

Prepared by S M Afreen Ali 

MSc . BS in Engineering

What are the different types of fans?

Axial or propeller fans. There are three basic types of axial fans: propeller, tubeaxial, and vaneaxial. Propeller fans are most commonly used for dilution ventilation or cooling. These fans are often mounted in a wall or ceiling.

What is an HVAC fan?

HVAC fans and blowers are used to move air through heating, ventilating, and air conditioning (HVAC) systems. ... HVAC fans and blowers can be mounted to an exterior wall (ventilation unit) or above the ceiling (plenum fan), or used as part of a ducted system (duct fan).

What are the different types of fan used in refrigeration system?

There are basically four types of fan that are commonly used in the HVAC equipment. They are the propeller fan, centrifugal fan, vane-axial fan and tube-axialfan.

 There are three basic fan types that are usually encountered in the HVAC industry: The Axial Fan, the Forward Curved Centrifugal Fan and the Backward Inclined Fan. Axial fans, also known as propeller fans, are engineered to move a low volume of air under low static conditions.

It is common to classify fans in

• Axial and/or propeller fans
• Centrifugal (radial) fans
• Mixed flow fans
• Cross flow fans

Axial and Propeller Fans

In an axial fan the air flows in parallel to the shaft. It is common to classify axial fans upon their wheel like:

• C-wheel - Blades can be adjusted when running. High efficiency, small dimensions, variable air volume
• A-wheel - Blades can be adjusted only when the fan is standing still. High efficiency, small dimensions, adaptive to recommended air volume
• K-wheel - Blades can not be adjusted. Simple, small dimensions

Centrifugal fans

 

a centrifugal fan the air flows is in a radial direction relative to the shaft. Centrifugal fans can be classified by their wheel like:

• F-wheel - Curved forward blades. High efficiency, small dimensions, changing in pressure have little influence on pressure head.
• B-wheel - Curved backward blades. High efficiency, low energy consumption, changing in pressure have little influence on air volume. Low noise emission, stable in parallel running.
• P-wheel - Straight backward blades. High efficiency, self cleaning, changing in pressure have little influence on air volume
• T-wheel - Straight radial blades. Self cleaning. Suitable for material transport

Mixed flow fans

In a mixed flow fan the air flows in both axial and radial direction relative to the shaft. Mixed flow fans develops higher pressures than axial fans.

Cross-flow fans

In a cross flow fan the air flows in an inward direction and then in an outward radial direction

Types of HVAC fans and blowers include:

·         Vents or ventilation fans.

·         Plenum fans.

·         Duct fans.

·         Duct blowers.

·         Roof fans.

·         Exhaust fans.

·         Inline fans.

·         Tube axial fans.