# single pipe equivalent for parallel pipes

## single pipe equivalent for parallel pipes

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Single pipe equivalent for parallel pipes - Pipelines ...Jul 14, 2008 · q = flow (gal/min) d = diameter (inches) So, assuming c1=c2 and head loss for all parallel pipes is equal and the sum of the flow in all parallel pipes is Qt, you want to find an equivalent pipe, so its head loss must be equal for the same total flow in the parallel pipes, Qp.Actually it doesn't work if you set the equivalent pipe length to less than the biggest pipe. If you set it to 1km it states the length is 1.08m wh...The problem is not defined. You don't have a flow term, so all its saying is that there is an infinite combination of equivalent Lengths and diame...Thankyou biginch, however im getting confused... I work in metric, my hazen's formula is: hf=2.777 L / ( C^1.85 * D^4.87) * Q^1.85 hf = head l...Don't think so, because without flow there is no head loss. You're just stringing together an infinite combination of possibilities that all equal...TonyBlair, The addition of pipes in parallel is accomplished by adding their flow capacities, Q i . The easiest and probably the best way to do th...[See also e.g. sometimes convenient tables on pages 17-10&11 @ http://www.acipco.com/adip/products/Sect17.pdf ]TonyBlair, it seems to me that your formula does give the correct answers. I do not understand the line in your first post where you said "Virtual...Sorry Tony. I think I was blinded by the light at the destination. I see where Katmar is correct as usual, so I guess I just didn't see the reaso...Katmar, Congratulations on deciphering the computations in the original post. But it seems that the computed value was not his problem. I think h...

### flow in pipe series and parallel - SlideShare

Apr 16, 2016 · Flow through **pipe** in series and **parallel** 3. Flow through **pipe** in series When **pipes** of different diameters are connected end to end to form a **pipe** line, they are said to be in series. The total loss of energy (or head) will be the sum of the losses in each **pipe** plus local losses at connections. 4.Worked Example 7: Parallel Pipes | ITACAA supply line is divided at a junction (A) into two 100m long **pipes** one of 1 dia. and the other of ½ dia. which run **parallel** and connect at junction (B) further down the gradient. If the flow rate through the supply **pipe** is 1LPS, what are the flow rates through each **parallel pipe** and the frictional head loss between points A and B ? AnswerWhat is the sum of the flow in a pipe?Pipes in Parallel. For pipes connected in parallel the pressure loss is the same in all pipes: dp = dp 1 = dp 2 = single pipe equivalent for parallel pipes. = dp n (2) The total mass flow is the sum of the flow in each pipe: m = m 1 + m 2 + ..See all results for this question

### What is parallel pipe?

Pipes Connected in Parallel: Pipes are said to be in parallel when they are so connected that the flow from a pipe branches or divides into two or more separate pipes and then reunite into a single pipe.See all results for this questionWhat is equivalent pipe?Equivalent pipe has the same discharge and loss of head as that of the compound pipe. Therefore, equivalent pipe for two pipes of lengths L 1, L 2 and diameters d 1, d 2 respectively, [Head Loss in Equivalent Pipe] = [Head loss in pipe 1] + [Head loss in pipe 2] h L e = h f 1 + h f 2.See all results for this questionWhat is Equivalent Pipe Length Method - Definition**Equivalent** Length Method. The **equivalent** length method (The L e /D method) allows the user to describe the pressure loss through an elbow or a fitting as a length of straight **pipe**.. This method is based on the observation that the major losses are also proportional to the velocity head (v 2 /2g).. The L e /D method simply increases the multiplying factor in the Darcy-Weisbach equation (i.e. single pipe equivalent for parallel pipes

### Solved: Find an equivalent, 1200-ft single pipe to replace single pipe equivalent for parallel pipes

Find an **equivalent**, 1200-ft **single pipe** to replace the **parallel pipes** shown in Figure 4-41. Step-by-step solution: Chapter: CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9 CH10 CH11 CH12 CH13 CH14 CH15 Problem: 1P 2P 3P 4P 5P 6P 7P 8P 9P 10P 11P 12P 13P 14P 15P 16P 17P 18P 19P 20P 21P 22P 23P 24P 25P 26P 27P 28P 29P 30P 31P 32P 33P 34P 35P 36P 37P 38P 39P 40P single pipe equivalent for parallel pipesSol Given Difference of water levels H16m Length and dia single pipe equivalent for parallel pipes16. A main **pipe** divides into two **parallel pipes** which again forms one **pipe** as shown in fig. The length and diameter for the first **parallel pipe** are 2000 m and 1.0m respectively, while the length and diameter of 2 nd **parallel pipe** are 2000m and 0.8m. Find the rate of flow each **parallel pipe**, if total flow in the main is 3.0 m 3 /s.Single pipe equivalent for parallel pipes - Pipelines single pipe equivalent for parallel pipesJul 14, 2008 · q = flow (gal/min) d = diameter (inches) So, assuming c1=c2 and head loss for all parallel pipes is equal and the sum of the flow in all parallel pipes is Qt, you want to find an equivalent pipe, so its head loss must be equal for the same total flow in the parallel pipes, Qp.Actually it doesn't work if you set the equivalent pipe length to less than the biggest pipe. If you set it to 1km it states the length is 1.08m wh single pipe equivalent for parallel pipesThe problem is not defined. You don't have a flow term, so all its saying is that there is an infinite combination of equivalent Lengths and diame single pipe equivalent for parallel pipesThankyou biginch, however im getting confused single pipe equivalent for parallel pipes I work in metric, my hazen's formula is: hf=2.777 L / ( C^1.85 * D^4.87) * Q^1.85 hf = head l single pipe equivalent for parallel pipesDon't think so, because without flow there is no head loss. You're just stringing together an infinite combination of possibilities that all equal single pipe equivalent for parallel pipesTonyBlair, The addition of pipes in parallel is accomplished by adding their flow capacities, Q i . The easiest and probably the best way to do th single pipe equivalent for parallel pipes[See also e.g. sometimes convenient tables on pages 17-10&11 @ http://www.acipco single pipe equivalent for parallel pipes/adip/products/Sect17.pdf ]TonyBlair, it seems to me that your formula does give the correct answers. I do not understand the line in your first post where you said "Virtual single pipe equivalent for parallel pipesSorry Tony. I think I was blinded by the light at the destination. I see where Katmar is correct as usual, so I guess I just didn't see the reaso single pipe equivalent for parallel pipesKatmar, Congratulations on deciphering the computations in the original post. But it seems that the computed value was not his problem. I think h single pipe equivalent for parallel pipes

### SWMM Equivalent pipe diameter

Yao - attached is a spreadsheet for calculation of an equivalent pipe** (surcharged).** It will work for identical pipes in parallel as well as single pipes. This will not work for the case of multiple diameters in parallel. This is a crude spreadsheet and you need to adopt some of the formulas for every job; for example hydraulic radius, area, etc.Related searches for **single pipe equivalent for parallel pipes**equivalent pipe **size** parallel pipesequivalent parallel pipe **diameter calculator**parallel pipe **to** pipe **clamp**parallel pipe **clamps**parallel pipe **flow calculator**parallel pipes **flow rate**pipes **in series and** parallelpipes **in** parallel **head loss**Some results are removed in response to a notice of local law requirement. For more information, please see here.Pressure in a parallel pipe system - CR4 Discussion ThreadAug 02, 2010 · The electrical **equivalent** for resistance (ohms) are the losses due to friction, sudden changes in direction, and changes in **pipe** cross section. In a simple DC electrical **parallel** resistance network, the total current in the network is equal to the sum of the branch currents.Pressure Drop in a Pipe CalculationFeb 09, 2013Perforated Pipe QuestionFeb 17, 2010How to Calculate Pipe Thickness for External PressureJul 26, 2008How to Calculate Pressure Drop Through a Coiled Pipe?Oct 01, 2007See more results

### Pipes - in Series or Parallel

The mass flow rate is the same in all** pipes:** m = m 1 = m 2 = single pipe equivalent for parallel pipes. = m n (1b) where . m = mass flow (kg/s, lb/s)** Pipes** in Parallel. For** pipes** connected in** parallel** the pressure loss is the same in all** pipes:** dp = dp 1 = dp 2 = single pipe equivalent for parallel pipes. = dp n (2) The total mass flow is the sum of the flow in each pipe:Parallel Piping System - Memphis**Parallel Pipes** ! We usually know the length and cross section area of both of the **pipes** from A to B and we want to know how much flow is going through each **pipe**. 7 **Pipes** in **Parallel** Monday, October 22, 2012 **Parallel Pipes** ! Now the view we have of this system is shown from above so all the **pipes** shown are on the same elevation**File Size:** 2MB**Page Count:** 26Modeling multiple diameter pipes as single equivalent pipe single pipe equivalent for parallel pipesSince the pressure drop is linear with** pipe** length, we can use this same ratio to calculate the** equivalent** length of the** pipe** of diameter diam1 that would have the same pressure drop as the original** pipe** section with diameter diam2.** equivalent** length of** pipe** 2 = Actual length of** pipe** 2 x (diam1 / diam2)^5. Therefore the actual length (67 m) of the 5"** pipe** can be modeled as 67 x (102.3 / 128.2)^ 5 = 21.6 m of 4"** pipe.** The total length of the** pipeline**

### Is there a flow term for parallel pipes?

You don't have a flow term, so all its saying is that there is an infinite combination of equivalent Lengths and diameters that will give you the some head loss at the sum of the flowrates of the two parallel pipes. And the formula is only true if the flows in each parallel pipe are equal. as something like this. I changed it for 1 foot of pipe.See all results for this questionHow Can I Determine Multiple Discharges from a Pipe single pipe equivalent for parallel pipes$\begingroup$ If I understand your wording correctly I will have 1 eqn for the sum of Q as you give in your answer, plus 9 eqns relating to the path from the inlet to each of my outlets. e.g., the equation for the outlet E would consist of a **pipe** with an **equivalent** length to the path 1-2-9 on my diagram. My immediate thought is that each of the single pipe equivalent for parallel pipesFormula for determining size of equivalent pipe for two single pipe equivalent for parallel pipesAug 05, 2015 · If this compound **pipe** is replaced by a **pipe** of uniform diameter and the same length as that of compound **pipe**, then it is called as **equivalent pipe** and the uniform diameter of the **equivalent pipe** is called as **equivalent** diameter. **Equivalent pipe** has the same discharge and loss of head as that of the compound **pipe**. Therefore, **equivalent pipe** for two **pipes** of lengths L 1, L 2 and diameters d 1, d 2 respectively, [Head Loss in **Equivalent Pipe**] = [Head loss in **pipe** 1] + [Head loss in **pipe**

### Flow through pipes arranged in different ways

If the total discharge in the** parallel pipes** is as same as the** single** main** pipe.** Find the diameter of the** parallel pipe.** Assume the coefficient of friction same for all** pipes.** Solution: Given: - Diameter of** single** main** pipe** line, d=0.4m. Let the length of** single pipe** = L. Coefficient of friction = f $hf=\dfrac{4fLV^2}{d\times 2g}$Flow through Pipes in Series and Parallel: Difference single pipe equivalent for parallel pipes**Pipes** are said to be in** parallel** when they are so connected that the flow from a** pipe** branches or divides into two or more separate** pipes** and then reunite into a** single pipe.** ADVERTISEMENTS: Suppose a main** pipe** branched at section 1-1 into two** pipes** of lengths l 1 and l 2 and diameters d 1 and d 2 and unite again at a section 2-2 to form a single pipe.Flow rate distribution in parallel heated pipes single pipe equivalent for parallel pipesSep 01, 2011 · The first step in the analysis of multiple **parallel pipes** is to obtain the pressure drop versus flow rate curve for a **single** heated **pipe**. Since the **parallel pipes** are fed from a common manifold and the fluid exits the **pipes** at the same outlet pressure, the solution requires the same pressure drop along the **parallel pipes**.

### Flow in a Pipe Network: 2 Methods | Distribution System single pipe equivalent for parallel pipes

These flows are marked on the given **pipe** network in fig. 20.18: Method # 2. **Equivalent Pipe** Method: This method is sometimes used as an aid in solving large networks of **pipes**, in which it becomes convenient to; first of all, replace the different small loops by **single equivalent pipes** Flow in Systems with Multiple PipesWe now know that the** parallel pipes** in the middle of the network can be represented by a** single**, 8-in diameter** pipe** that is 1800 ft long and has a CHW of 100. We can use that information to represent the whole network as three** pipes** in series:** Pipe** 1, the** equivalent pipe** to** pipes** 2 and 3, and** pipe** 4.Explore further**Parallel** Piping System - Memphiswww.ce.memphis.edu/3180/PDFsF12/**Parallel** Piping System.pdfEquivalent Diameter - Water treatment & distributionDec 18, 2007Single pipe equivalent for parallel pipeFeb 17, 2005See more results

### Equivalent length for pipes in parallel? Heating Help single pipe equivalent for parallel pipes

yes. By far the easiest way to do this is to pick a reasonable head loss and calculate the flow in each of the **pipes** for that head loss Add the flows. Then solve for a **pipe** of some length and diameter as convenient which will have the same flow as the total at the same head loss.Equivalent Diameter - an overview | ScienceDirect TopicsThe equivalent pipe diameter for a single pipe 5000 ft long is calculated as follows. (2000)2(5000) / D 5E = (1174)2 × 8000 / (12)5. or D E = 13.52 in. Therefore, a 13.52-in-diameter pipe, 5000 ft long between B and E will replace the two parallel pipes.Engineering & Technical Comparison of Data Pipe of a given size are equal in carrying capacity to one **pipe** of a larger size. At the same velocity of flow the volume delivered by two **pipes** of different sizes is proportional to the squares of their diameters; thus one 4" **pipe** will deliver the same volume as four 2" **pipes**. With the same head however, the velocity is less in the smaller **pipe**, and**File Size:** 39KB**Page Count:** 1

### Determining Flow Rates in Parallel Piping Systems single pipe equivalent for parallel pipes

Sep 02, 2003 · When the hydraulic resistance of all **parallel** piping strings in a given piping assembly is known, they can be combined into a **single** "**equivalent** resistance." This concept is shown in Figure 4. The value of the **equivalent** resistance of any number of **parallel** Computation of Equivalent Lengths of Parallel Pipe A single pipe Lx in length may now be found which is equivalent to the functionally parallel pipes shown in Fig. 3. Such a pipe will be able to carry a flow Qx equal to Qi + Q2 at a head loss hx equal to hi which is also equal to h2. Thus, Qs/Qî = ^-^ = Qi/Q, + l = iU/Lx) MChapter 7 FLOW THROUGH PIPES**Pipes** in **Parallel**: **Pipes** in **parallel** are **pipes** with different diameters and same lengths, where each **pipe** is connected separately to increase the discharge. Consider **pipes** in **parallel** discharging water from a tank with higher water level to another with lower water level, as shown in the figure. Neglecting minor losses, it is

### CVE 372 HYDROMECHANICS - 2. Flow in Closed Conduits 4

**Pipe** Systems 2.5.2 **Pipes** in **Parallel** - **Equivalent Pipes** 5 1/2 5 1/2 5 1/2 + = B B A A C C l D l D l D Q =QA +QB L LA LB h =h =h 12 Q A Q B Q C (1) (2) If f A=f B=f C, then For n **pipes**: = = n i 5) If The Parallel Pipes Are Considered As A Singl single pipe equivalent for parallel pipesQuestion: 5) If The Parallel Pipes Are Considered As A Single Equivalent Pipe, The Pipe System From Point O To Point 2 (below) Can Be Represented As Three Pipes In Series. The Three Pipes In Series Can Be Represented By A Single Pipe. Determine The Equivalent** K** For The Full System.1000 of new 12 pipe is placed parallel to the existing one single pipe equivalent for parallel pipesb. 1000 of new 12 **pipe** is placed **parallel** to the existing one from A to C (1/3 of total length), like Fig 9.27. Find the new Q through the system. Also find the new value of h p at C. c. Knowing h p or h l in the first 1000 section of two 12 dia **pipes** in **parallel**, find the **equivalent single-pipe** diameter.