Practical highquality electrostatic potential surfaces for. Lesson 3 esp design parameters and their effects on collection efficiency goal to familiarize you with the variables used by vendors to optimally design esp systems. Esp design calculation free download as powerpoint presentation. Rebuilding of esps canadian advanced rebuild used esps of most known manufacturers into as new condition. Electrical submersible pump analysis and design semantic scholar. Based on that, a first order esp design and selection can be made. We see functional family homes, professional business premises and detailed developments that need to reflect your individual requirements, and we work closely with you to fulfil your brief to the best of our ability. Oct 02, 2017 the theory behind the production capacity calculations was detailed in the post esp design step 2. The formulas used for the calculation of theoretical migration velocity do not take.
Design of esp window for sample2changing the gas velocity 227 figure 216. If it is not available it may be assumed as for natural draft cooling tower d 0. The presence of free gas in the tubing above the pump changes the fluid density, consequently reduces the required discharge pressure. Experience has shown that proper design and application of esp. The manufacturer has chosen to use positive polarity to reduce ozone generation.
Next, we calculate the electric charge on each particle. Apr 11, 2018 esp calculation ashrae duct fitting data base complete hvac english hvac. It is worth mentioning here also that esp has to be calculated for different scenarios to ensure that the calculated esp is indicating the maximum esp drop in the system which will be for the index run noting that the index run is not mandatory to be the furthest duct run. Also the performance of centrifugal pumps is considerably affected by the presence of free gas in the pumped fluid. The bottom hole pressures used in this calculation can be derived using. However, our engineers are already thinking one step further. Scribd is the worlds largest social reading and publishing site. Jan 25, 2018 basic tutorial on how to model a simple esp well using prosper. Pumpdesign is the esp design software pumpdesign selects an esp system required to achieve the target well flowing rate or bottomhole pressure pumpdesign provides the specifications of the required equipment. Drift loss of the cooling tower is normally provided by the cooling tower manufacturer based on the process design. In this third step, one must determine the total fluid mixture, inclusive of water, oil, and free gas that is ingested by the. The treatment throughout the handbook is practical with very little emphasis on theory.
Selection and sizing of proper esp equipment for a particular application should be based on a ninestep design procedure. Five easy steps to estimate external static pressure drop in hvac ducts using equal friction method. This spreadsheet allows the user to find the pump power requirement watts or brake horse power for various feeder pipe diameters in and given a known flow rate lps, pipe length m and head m and then select a suitable pump based upon available pump characteristic data. Use the deutschanderson equation for this calculation and assume the. Content of petrowiki is intended for personal use only and to supplement, not replace, engineering judgment. Hvac training external static pressure calculation. Pdf gas effect in esp system stage by stage analysis. The liquid volumetric rate to be handled by esp pump is found from the water and oil rates. Likewise, the design process and analysis of these installations is explained.
Building an esp is a costly endeavor, so a great deal of time and effort is expended during the design stage. Systems are completely tested and certified before leaving the factory. By comparing above value to the wells producing gor, it can be established whether a free gas enters the submersible pumps. Design of air conditioning system by ushig hap hourly analysis program mr. Esp design was formed by directors clare mckechan, marc powell and dean ellis, who have over 20 years experience in the architectural industry. Esp calculations in prosper head and discharge pressure the manual head calculation following the above methodology returns almost the same value of head as the previous manual hand calculation 3704 ft versus 3702 ft before due to a small change in rate caused by the different fluid properties and inlet conditions. Although selected wells are already producing artificially, they are redesigned for srp and esp. The handbook of electric power calculationsprovides detailed stepbystep calculation procedures commonly encountered in electrical engineering. This nine step procedure for esp design is a basic handdesign of.
Inspecting protein and ligand electrostatic potential esp surfaces in order to optimize electrostatic complementarity is a key activity in drug design. Traditionally, esp has been thought of as something that exits at the fringes of an english program, dealing with often. Air flow problems have plagued the hvac industry for years. Design of esp window for sample1changing the height 225 figure 214. Loadcalc software developed by lufkin and subpump developed by dssc are used for srp and esp designs respectively. Lesson 3 esp design parameters and their effects on. The theory behind the production capacity calculations was detailed in the post esp design step 2.
Heat conduction and thermal resistance for steady state conditions and one dimensional heat transfer, the heat q conducted through a plane wall is given by. Explain how each of the following factors contributes to good esp design. Marc and dean first met while studying at university college northampton and they both moved into private practice once they had graduated. Radius of wire, rwire 10 mm length of the esp, l 2. Design efficiency of esp 203 inertia, inhomogeneity of electric field strength distribution, gas velocity, and electric wind velocity. An esp is designed for a particular industrial application. This page outlines the procedure as a manual process to illustrate the esp design steps. Staging means varying the number of pumps in opera. Proper sizing and selection of an electrical submersible pump esp system is essential to efficient and costeffective performance. It consists on predicting the well inflow performance. Objectives at the end of this lesson, you will be able to do the following.
Changes to any of these key system parameters will result in systemwide performance issues. Psc standard base pressure user input tsc standard base temperature user input g gas gravity relative to air at 14. Expressed in simple terms, esp is an antiskid programme. Definition of electrosubmersible pump esp design and selection. Coy research triangle institute research triangle park, north carolina gary p. Esp is the static pressure external to the hvac equipment needed to overcome only the duct and fittings friction losses. Calculate the aspect ratio and specific collection area of an esp given a set of design informa tion. The temperature t2 is the inside design condition 80f and t1 is the desired supply of 65f air at the outlet of the air handler. The index run is the duct run with the maximum external static pressure. The handbook contains a wide array of topics and each topic is written by an authority on the subject. One of the primary conclusions was that the value of the mobility of air ions, an important parameter in esp design, should be modified for small platetoplate distance precipitators to. Sizing and costing of electrostatic precipitators part ii. The pump intake pressure 1160 psi is greater than bubble point pressure 964 psi.
We can now go to the store and purchase a pump with at least 47 feet of total head at 10 gpm. Cooling tower efficiency calculations cooling tower approach. Casing size and weight, tubing size, type and thread, perforated or open hole, pump setting depth measured and vertical, deviation survey. The main objective of the seminar is to present system analysis to artificial lift with electric submersible pumps esp using subpump. Subpump training classes for basic esp design principles. So that, the productivity index pi inflow performance method will most. System design variables for a dust collection system to function adequately engineers must design and operate the system to maintain the 4 key design parameters of cfm, fpm, vacuum pressure and air to cloth ratio or ac. Ductwork design principles starting with the basics, lets start at the most elementary level of air flow fundamentals. Electrical submersible pump, esp motor, esp cable and esp drive. It is also known as a driving dynamic control system.
Main results for sample1changing the height 226 figure 215. For more complicated well conditions, such as high gor, viscous oil, hightemperature wells, etc. Esp design is the worlds leading online guide to sustainable design of products and services, with sustainable product design theory, tools and helpful links. The electronic stability programme is one of the vehicles active safety features. No matter how much money you spend on a highquality hvac system. Systems designed with several smaller pumps in parallel can use manual or automatic pump staging. This nine step procedure for esp design is a basic handdesign of simple water and light crude oil. Esp system selection and performance calculations petrowiki.
External static pressure is the resistance to airflow friction caused. Electrical submersible pump design and diagnostics using subpump training. The first step in an esp design is to collect and verify the reliability of all data that will be used in the design. Wave forms by section showing fullwave energization for sample esp 223 figure 2. What is esp particulate collection device used in industriestominimizeairpollution principle of operation electrostatic attraction efficiencyof99. Design of air conditioning system by ushig hap hourly. This page walks through the suggested 9step process for selecting and sizing an electrical submersible pump system for artificial lift. They also consider a variety of operating parameters that.
In the electrostatic precipitation process with a spike and plate electrodes arrangement there exists an electrohydrodynamic ehd flow, which is an effect of mutual interaction of. Spe disclaims any and all liability for your use of such content. Published on october 22, 2015 october 22, 2015 572 likes 74 comments. Electric submersible pump esp well modelling youtube. Unlike placewire or tubular esps, this design operates equally well with either negative or positive polarity. Designing and sizing baghouse dust collection systems. Spacepak system design spacepak is a hivelocity central air conditioning system which utilizes a conventional outdoor condensing unit matched with the indoor model esp j fan coil unit to provide conditioned air through the speciallydesigned, prefabricated, preinsulated flexible duct system. The critical value of the ratio or percentage of free gas present at the pump intake to the total volume of fluid depends on the pump impeller design typical critical values are shown in the article esp.