Since 7 represents isentropic compression, the line described by 14 cannot ckoss the curve described by 7. Provide the reader with a case study on the design and optimisation of an airconditioning ac system. The technician at denso indicated to me that the compressor should come with 4oz of oil in it. Axial and centrifugal compressors application guide. Surge is a coupling effect between the compressor and the. To evaluate the performance of an existing compressor, the objective is to calculate the compressor efficiency. The performance line of dagh is the maximum head capability of the compressor. Since 7 represents isentropic compression, the line. Each gbh1 type can be applied both as vacuum pump and compressor in continuous operation over the total stated performance curve range. Pdf a new software, cmap, developed by ipc, is a tool for pc windows based design to perform centrifugal compressor performance evaluations easily and. Figure 2 sample centrifugal compressor performance data. Denso ac compressor and air conditioning component catalog.
Air system pressure influences compressor power part 2. With ercm, youll know more about your compressor than the packageroem. Compressor characteristic is the curve to show the behaviour of fluid, like change in pressure, temperature, entropy, flow rate etc. The optimized valves reduce suction and discharge pressure loss within the compressor, increasing efficiency.
Our experience as an original equipment supplier to the worlds major car manufacturers gives our aftermarket product range a significant advantage. A performance curve is one of the effective way to assess the power of a compressor. Enter your user name and password on the flexware website main page, then click on log in. Fill in the form with the caracteristics of your airconditioning system, and the software will calculate the performances of the most adequate valeo compressor for. Bus air conditioning renowned for our quality and reliability, densos experience as a supplier of bus ac systems is bolstered by well over 50 years of engineering, technical and manufacturing development. One of the worlds leading suppliers of ac compressors for automotive applications, denso also offers both factorynew and remanufactured compressors to the repair industry and consumers as well. Please note that some products are only available in japan. Based on densos expertise as a leading global supplier to all major automakers, the company provides automotive service parts that contribute to safer and more fuel efficient driving, and car accessories that enhance the pleasure of your car experience. Read here to know about various types of air compressors used and get a clear inside view of each type of compressor with the attached pictures. Contact flexware to obtain your user name and password. If you already know about the centrifugal compressor performance curve, definitely this article will refresh your knowledge. The performance curves are based on air at a temperature of 59 f and an atmospheric pressure of 401. Compresor curve in hysys from vendor data chemical process. Apr 30, 2020 automotive service parts and accessories based on denso s expertise as a leading global supplier to all major automakers, the company provides automotive service parts that contribute to safer and more fuel efficient driving, and car accessories that enhance the pleasure of your car experience.
Increases engine performance and throttle response. Compressor bateman co2051ca ca2 sd7h15 w 8gr 119mm dia clutch w vert oring jd 8100 bateman co2104ca ca207 sd7h15 w 2gr 2mm dia clutch w vert oring je 7863. The compressor is at the heart of every cars climate control system, and vital to its proper operation. Performance characteristics of a reciprocating refrigerant compressor over a range of speeds j. This manual was developed to assist certified technicians in servicing the air. Specifying required performance when purchasing reciprocating. Select your make, model and product type to search for available denso parts. Compressor performance an overview sciencedirect topics. Generally, the performance of a centrifugal compressor is expressed as a relationship between the flow rate or flow coefficient and the pressure ratio or pressure coefficient on a line with a constant number of revolutions, as shown in fig. Oil charge guide compressor make model typeoperation oil capacity ester oil pag oil denso tv14c through vane 120 160ml ogx001 ogx9801 diesel kiki dks12 swash plate 6 cyl 120ml ogx001 ogx9802 diesel kiki dks swash plate 6 cyl 120ml ogx001 ogx9802 diesel kiki dks15 swash plate 6 cyl 5ml ogx001 ogx9802.
Repair of car air conditioning or installation of car air conditioning parts should only be carried out by certified and trained mechanics. Enable the reader to understand the fundamental principles and operation of the. For any volume ratio, it can be shown that equations 7 and 14 give the same power when evaluated at a pressure ratio rp3p1vik. Positive displacement compressor posted in student.
Pdf the solutions to electric vehicle air conditioning systems. Capacity and power consumption correction factor is 0. Because the inertia of the airconditioning motor is very small. A characteristic curve or performance curve of a centrifugal compressor is. These curves provide such information over a range of engine speeds, in this. Unlike reciprocating compressors screw compressors do not have a dead volume that. Products for electric and hybrid vehicles electric and hybrid vehicles that reduce co 2 emissions are equipped with some speci. Figure 5 shows the idealized process in a pressurevolume diagram pvdiagram.
In a positive displacement compressor, the required operating power is mostly driven by flow cfm, and is somewhat less affected by discharge pressure, or psig table 1. Performance characteristics of fixed volume ratio compressors. Happybuy co 105111c 0002302011 0610045 4710293 5117679aa universal air conditioner ac compressor for 9608 mercedes c cl clk e ml s sl 7sbu16c ac compressor 77356 78356 5097010aa 4710293 4711293 denso new ac compressor. Because denso heavy duty ac compressors and components are built to meet the stringent requirements of vehicle and equipment makers throughout the world for high output, reduced noise and. Why are our units so popular among oe manufacturers. Different curve colors in the diagrams illustrate the different compressor chambers. From the compressor performance table figure 86, compressor without economizer. Typical performance curve of centrifugal compressor. Converting the capacity to 60 hz, 3,550 rpm compressor speed rating, it shall be 2520.
A insert 5 data points type over underlined values from the compressor head and efficiency curves. Compressor performance web calculator use the flexware web calculator to do your compressor performance analysis. The scroll compression mechanism provides smooth, quiet operation and the highest level of efficiency. Denso compressors are so highly regarded that lookalikes and counterfeits have appeared on the market. Positive displacement compressors cab be further divided into reciprocating and rotary compressors. The performance maps provided by compressor manufacturers are a critical element of this model. Looking at compressor performance at 121 psig and 111 psig, reducing pressure from 121 to 111 psig only lowers power by 5 horsepower. It shows head output as a function of speed and inlet volume. Comparison and evaluation of different ac compressor concepts. Gas flex excel worksheet values from manufacturers predicted perfromance curves instructions. Standard condition gas volume flow rate q s or gas mass rate b.
As shown below, this unit had an 11% deviation in head at the point shown, likely due to impellor fouling, impellor wear, andor increased clearances. Denso ac compressors original quality for the aftermarket denso is the world leader in compressors over 40% oe market share all denso compressors are new no reman parts no core charge or deposit compressor range is 100% oe highest product quality, extremely low warranty ratio. Fixed displacement 1 fixed scroll and 1 orbiting scroll. Simply put, denso produces the best heavy duty ac compressors in the world for the best construction and agricultural equipment. Items file of compressor model used in oem software of unit, such as an eajax file, an ariel run file, a superior cascade or compass file, a drsize file, a kwperformance file, or a ge ez size pro file. Automotive service parts and accessories denso global website. Hi guys, i would like to know how can i create compressor curve in hysys with the data given by vendor attached.
The central focus is on packaged complete unit air compressors, most commonly used in. Performance analysis of oilinjected screw compressors and. Insufficient lubrication caused by 1 system blockage or 2 no run in procedure. To remove or install a compressor, refer to the appropriate official vehicle repair manual. The function of a compressor is to increase the pressure of a fluid passing through it, so that the exit pressure is higher than the inlet pressure.
Delphi cs20108 10s17 new air conditioning compressor. Pdf the air conditioning ac system provides cool, heating and ventilation in the cabin of the electric vehicles evs. Each gbh1 type can be applied both as vacuum pump and compressor in continuous operation over. In the article, we will discuss how to read a centrifugal compressor performance curve. Screw compressor rotors in successive working phases. Products for electric and hybrid vehicles denso global website.
Denso ac compressor at discount prices discount ac parts. Reasons used for identifying compressor performance after unit is brought online. Denso provides products based on its cuttingedge technologies. Denso first time fit ac compressors are engineered to meet all manufacturers standards and the companys own rigorous standards. These include traction inverters for controlling electric drive motors and regenerating. Search for denso equivalent part numbers against other manufacturers part numbers. A positive displacement performance curve will characteristically be more vertical than a centrifugal performance curve. Performance maps and their use in simulation a performance map describes how a. The inlet guide vane allows the centrifugal compressor to operate any points and any conditions below envelop of.
How to read a centrifugal compressor performance curve. Compresor curve in hysys from vendor data chemical. Sandens next generation scroll compressors designed to achieve outstanding durability. Performance analysis of oilinjected screw compressors and its applications mitsuru fujiwara mechanical engineering research laboratory, hitachi, ltd. Compresor curve in hysys from vendor data posted in chemical process simulation. Driven by the engine via a belt and clutch or pulley. This article explains how to use the performance maps for variablespeed, fixedinlet guidevane centrifugal compressors for the dynamic simulation of a compressor system. Centrifugal compressor performance is evaluated against the wheel curve baseline for this particular unit. Figure 1 shows a typical performance curve for a single stage of a centrifugal compressor. The compressor starts to build pressure and follows the pressureflow characteristic curve, toward surge. Aug 31, 2018 in the article, we will discuss how to read a centrifugal compressor performance curve. Denso provides company update amid covid19 pandemic apr.
Ignition coil on plug boots hardware ignition wires ignition coils spark plugs. Since the dash ac system utilizes chassis components compressor. Performance curve for vacuum pump performance curve for. Jun 23, 2008 positive displacement compressor posted in student. Development of highefficiency centrifugal compressor for. The performance of such compressors depends on the flow field characteristics. Denso, ac air condition compressor, ac evaporator, ac condenser discount air conditioning products from discount ac parts 2014 20 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 1975 1974 1973 1972 1971. Centrifugal compressors performance is usually expressed in terms of a group of curves that graphically display the range of.
Performance curve in general, centrifugal performance curve presented in head or discharge pressure against suction flow, see fig. A high percentage of poe will reduce lubrication performance. It is thus essential to have a good understanding of the gas flow motion in the compressor by quantifying the velocity field in the compressor elements, suction, discharge and working chambers and, especially. Compressor performance curves can provide the service technician with the btu pumping rate capacity, mass flow rates, operating amperage, and operating wattage, when the suction pressure and head pressure are known for the system. Fit perfectly, just as it should, and replaces the original denso which lasted 360,000 miles in a 2002 toyota 4runner sr5 sport. Then, curve fitting was used to develop the pv, qv, pf, and qf relationships for motor running and stalling states. Beta monitors the compressors performance to detect changes in performance. The function of a compressor is to increase the pressure of a fluid passing through it, so that the exit pressure is higher than the inlet. Performance characteristics of a reciprocating refrigerant. Dont be taken demand a genuine denso ac compressor. Reprinted with permission from cep chemical engineering. Also replaced the condenser, drier and expansion valve with new denso replacements. It is important that the plant operator concurrently evaluate reactor yields, wetgas compressor, and gasplant performance to determine the most costeffective revamp strategy. The figure 77 is the typical performance curve for the centrifugal compressor with inlet guide vane control with constant speed drive.
Give an overview of the historical development of the heating and ventilation system and introduction of the airconditioning ac system. Positive displacement compressor student cheresources. Sanden performance curves allow our consumers to have an overview of the compressors power consumption, refrigerating capacity and a ratio of performance from these two values. Sep 03, 2008 the figure 77 is the typical performance curve for the centrifugal compressor with inlet guide vane control with constant speed drive. If you are new to the compressor, this article will definitely make yourself familiar with the centrifugal compressor performance curve.
The resulting performance model ignores the dynamic response of the airconditioning motor. Because denso is the worlds largest supplier of ac compressors, our units are specified by vehicle manufacturers. High cop due to high volumetric efficiency low power. Denso first time fit ac compressors are manufactured and tested to the strictest oe standards for unparalleled performance.273 1119 1040 758 431 1331 1438 928 580 616 375 976 816 1109 765 1123 920 905 1168 629 1300 748 1195 1469 394 1088 623 1077 1198