Presentation on theme: "Life Cycle Costs In Pumps and Pumping Systems"— Presentation transcript:
1Life Cycle Costs In Pumps and Pumping Systems (Based On Guidelines of Hydraulic institute Standard)
2Purchase, Install, Operate, Maintain , and Dispose of that equipment. Life Cycle Cost (LCC)The LCC of any piece of equipment is the total “Lifetime” cost required toPurchase, Install, Operate, Maintain , and Dispose of that equipment.
3Purchase price Operating cost Maintenance cost Pumping system account for nearly 20% of worlds electrical demand and range from20- 50% of pump energy usage in certain industrial plant operation.For majority of the facilities, lifetime energy and maintenance cost will dominatethe LCCPurchase priceOperating costMaintenance cost
4Why LCCWhy should organizations care about life cycle cost?Many organizations only consider the Initial purchase and installation cost of the equipment.It is in the fundamental interest of the plant designer and manager to evaluate the LCC ofDifferent solutions before installation of new plant or major over haul.This Evaluation will help in identifying financially attractive alternative / solution.In today’s competitive market organizations must continuously seek cost saving which willimprove their profitability.Along with economic reasons , LCC helps in developing awareness about environmentalimpact of their business and conserving energy as one way to reduce emission, preservenatural resources and reduce carbon foot print. This will also help in reducing emission ofGreen House gases.The developed world has become acutely aware of the effect of it’s energy waste and theintroduction of levies on CO2 emissions now directly taxes the inefficient users of energy.
5LLC Series – Horizontal Split Casing Pumps Cross section of LLC Series Vertical Turbine Pump
6LLC Series – Horizontal Split Casing Pumps LLC VERTICAL TURBINE FEATURES & BENEFITS (Contd…)FEATURE/ADVANTAGECUSTOMER BENEFITShaft CouplingsKeyed muff type couplings fitted as standard.Easily removable, unlike lower cost screwed couplings ensuring increased component life.Reduced maintenance costs.Universal Seal ChamberCustomer specified mechanical seals or traditional soft packed gland arrangements.Site standards and customer specified options accommodated.Facilitates compliance with customer frame contracts for mechanical seals etc.Spacer CouplingSpacer Coupling as standard.Facilitates removal of cartridge type mechanical seals without disturbing thrust bearing assembly or driver and negates the need for expensive split mechanical seals.Substantial reduction in maintenance costs.Thrust Bearing AssemblyHeavy duty thrust bearing assembly.Anti-friction or Michell type thrust bearings dependant on load. Minimum L10 life in excess of 50,000 hours under all design load conditions.HeadpieceLarge heavily engineered fabricated headpieces, ensure minimal vibration and long bearing life.Longevity of design combined with increased bearing life ensures lowest cost of ownership.CoatingsDrinking water approved coatings.Facilitates use on potable water applications.
7LLC Series – Horizontal Split Casing Pumps Cross section of LLC Series Horizontal Split Casing Pump
8LLC Series – Horizontal Split Casing Pumps LLC HSC FEATURES & BENEFITSCasingFEATURE/ADVANTAGECUSTOMER BENEFITAxially split casing with nozzles in the bottom half casingRotating element can be removed in-situ, without need to disturb either the pipework or driver avoiding the need for subsequent re-alignmentEnhanced bearing life.Less downtime.Reduced maintenance costs.Double volute casings, where radial loads dictate.Reduces radial load and subsequent shaft deflection.Only incorporated where necessary, as double volute design tends to have an efficiency penalty. SPP (Our) policy on smaller frames is to enhance the L3/D4 ratio, by incorporating more generous size pump shafts. Enhancement in L/D ratio helps in limiting shaft deflection lesser than wear ring clearance.Some competitors offer double volute across the range. This is not energy efficient. SPP’s (Our) smaller frames will be more efficient reducing energy costs.CoatingAn efficiency enhancing drinking water approved coating is standard for water applications. This is optional for general service pumps.Reduced energy consumption/cost.
9LLC Series – Horizontal Split Casing Pumps LLC HSC FEATURES & BENEFITS (Contd…)FEATURE/ADVANTAGECUSTOMER BENEFITImpellerPrecision casting in austenitic stainless steel as standard. Axially hydraulic balance of double suction design improves efficiency and enhances bearing life.Rotating assemblies are dynamically balanced minimizing vibration.Increased component lifeIncreased cavitation resistance.Superior hydraulic performance.Increased bearing and component life.All above result in reduced maintenance costs.Impeller FixingPositively locked and keyed to pump shaft.The new Weir Uniglide E does not incorporate a key driven impeller, hence it will be difficult to remove and may not offer the conservative thinking engineer the comfort required.Easily removable and positively driven.Pump handing can be changed insitu. Not so easy with a shrink fit impeller.Security of operationLower maintenance costs.ShaftCorrosion resistant rigid stainless steel shaft as standard. Low L3/D4 ratio ensures minimum deflection and long bearing life.Maintains optimum efficiency longer, as no contact between impeller and wear rings.Increased bearing and shaft life.Reduced maintenance and energy costs.
10LLC Series – Horizontal Split Casing Pumps LLC HSC FEATURES & BENEFITS (Contd…)FEATURE/ADVANTAGECUSTOMER BENEFITBearingsAPI type double row thrust bearing assembly.Thrust Bearing assembly situated at drive end, ensuring any thermal growth on high temperature service is not transmitted to coupling and driver.L10 life in excess of 50,000 hours, under all design load conditions.Security of operation for the more conservative thinking engineer.Wear RingsHard metallic serrated casing wear rings.Impeller wear rings are optional and can be fitted during overhaul.Long life and reduced energy consumption.Lowest whole life cost option. Minimises initial capital cost and can be fitted during overhaul if impeller wear is evident.Seal ChamberUniversal seal chamber.Weir Uniglide E does not accommodate soft packed gland and is fitted with a Weir Mech. Seal.Maintains regulated pressure in at seal faces ensuring no dry running and facilitates high temperature operation.Accepts most commercially available single or double cartridge mechanical seals or traditional gland packing.Operation up to 120oC with standard seal arrangement. Low capital and maintenance costs.
11LLC Series – Horizontal Split Casing Pumps LLC HSC FEATURES & BENEFITS (Contd…)FEATURE/ADVANTAGECUSTOMER BENEFITMechanical SealsCustomer specified mechanical seals.Site standards and customer specified options accommodated.Facilitates suction lift with single cartridge seal options.Facilitates frame contracts for consumable parts seals, bearings etc.Operation with negative suction pressures/suction lifts without expensive barrier fluid systems. Ease of maintenance and operation, reducing running and maintenance costs.Throttle BushThrottle Bush reduces energy consumption and facilitates suction lift with single mechanical seals.Low energy costs, also facilitates a wider range of application, reducing capital and maintenance costs.Bearing HousingsExternally removable bearing housing. Ease of maintenance.Bearings and seals can be removed without removing top half casing.Bosses are provided as standard for condition monitoring transducers.Lower maintenance costs. Minimal downtime.Improved reliability with reducing downtime and associated costs.
12LLC Series – Horizontal Split Casing Pumps LLC HSC FEATURES & BENEFITS (Contd…)FEATURE/ADVANTAGECUSTOMER BENEFITCoating optionsEfficiency enhancing drinking water approved coating applied as standard on potable water applications, optional for industrial use.Reduces energy costs.Base platesChannel section base plate incorporating motor jacking screws as standard ensure vibration free operation and easy alignment on site.Reduces expensive down time and maintenance costs.Spacer Coupling as standard.A spacer coupling facilitating removal of the drive end bearing and seal in-situ, without need to remove and re-align the drive motor.
13Hydraulic Deterioration Original BEPDeterioratedFlow Reduces = More Hours runHead/FlowEfficiency Loss =More Power per hourEfficiencyDeteriorated
14Degradation Cost Average 1% pa Additional Energy Cost Rs. 5.6 million) LLC Average 0.25% pa
15Pump rarely BEP 5% Saving on 100 KW = 44,000 kW pa = Rs. 0.38 million Saved GenerationAgain with our costs and in our currencyPump rarely BEP15
17ConclusionLife Cycle Cost is a highly practical tool for the users which can be very effectively used to evaluate and compare any equipment, particularly for complex pumping systems to make purchase decision from the available alternatives and safeguard own interests. KBL has used this concept effectively in the products and introduced this in the market.