These two software programs have been developed to aid in the design and analysis of center pivot and traveling lateral sprinkler irrigation systems.
\nPIVNOZ
\nTo install the program, run SETUP.exe from the Pivnoz directory. This Windows program calculates nozzle sizes and estimates application rates for center pivot sprinkler systems and linearly traveling laterals, for commonly used sprinkler packages. It can be used to nozzle a complete pivot lateral or a section of a pivot lateral. The user must know the desired system capacity, the desired sprinkler spacing(s) along the lateral, and the nozzle pressure(s). Each of the input values can be entered in selected English or metric units as desired.
\nInitial inputs:\nSelect either pivot or linear. A linear will be nozzled uniformly.\nEnter the system capacity. This is the gross flow per unit area irrigated or the gross depth applied per day on an average daily basis. Any application efficiency estimate must be built in to this value. Select desired units (i.e., mm/day or gpm/acre).\nEnter the nozzle pressure. If you desire to use different pressures on different sections, run each section separately.
\nPivot inputs:\nEnter the beginning and end distances from the pivot of the section for which the nozzling is to be calculated.\nSelect fixed or variable nozzle spacing.\nFor fixed spacing, enter the desired nozzle spacing. For variable spacing enter the desired nozzle flow rate.
\nLinear inputs:\nEnter the desired nozzle spacing.\nEnter the length of the lateral.\nEnter the total travel distance of the lateral.\nEnter the percent downtime required for moving the supply hose, etc.
\nSprinkler package:
\nThe user may skip this section if only nozzle sizes are desired. Select a specific package by clicking on the drop down box on the right. A list of several available rotating or oscillating-plate packages will be presented. Consult Nelson or Senninger literature for more information on the specific models and plate types. Enter the total nozzle offset produced by the addition of fore and aft spray booms. Enter the mounting height above ground or above the average crop height. If a different type of sprinkler is desired, select the generic box and enter the approximate pattern width for that sprinkler.
\nOutputs:\nSelect English or Metric output.\nClick RUN to view the output on the right side of the screen.\nIf any of the inputs are changed, you must click RUN again to recalculate the output.\nNozzle sizes are given in English or metric units and equivalent numbered sizes (1/128 and 1/64 inch increments) used with most commercially available nozzle packages. The pattern width is the diameter of the spray pattern plus the nozzle offset entered above. The peak application rate is the approximate peak of the application rate pattern and not an instantaneous rate which can be much higher.\nThe output can be saved to a file or printed if desired.
\nPIPELOSS\nTo install the program, run SETUP.exe from the Pipeloss directory.\nThis Windows program calculates friction losses in individual pipe sections or laterals with multiple, uniformly spaced outlets, either uniform discharge laterals, or center pivot laterals. The program can also handle a lateral comprised of two pipe sections with different diameters and lengths. The program also supplies data on exact inside diameters and friction coefficients for most types of pipe used in irrigation. This software works with either English or Metric units. Pipeloss is installed as a popup Windows program. Additional help in running the program is available by pressing the \"readme\" button on the screen.
\nDownload each zipped program and explode in its own directory. You may also download the document file.
Resource Title: PIVNOZ-PIPELOSS web page and download form.
File Name: Web Page, url: https://www.ars.usda.gov/research/software/download/?softwareid=206&modecode=20-54-05-00