VALUE ENGINEERING Prepared By Mohammed Abdul Hafeez Us Shan PLUMBING OF A VILLA In Relevance to CEM 512 This Project is Prepared for Honorable Dr. SAADI ASSAF
INTRODUCTION VE JOB PLAN Information Phase Functional Phase Creative Phase Judicial Phase Development Phase SUMMARY AND RESULTS OUTLINE
INTRODUCTION VE study of Plumbing for the Villa A team comprised of 3 professionals VE Design Mechanical On final implementation Overall 63% in savings were realized
OBJECTIVES To provide drainage and water service Minimum performance as required by IAPMO To fulfill peak load To provide human comfort for all climates To drain sewage waste to street mains To draw water from exterior network and distribute internally Use locally available material INTRODUCTION
INTRODUCTION COST DATA FIXTURES SR PIPING SR GENERAL ITEMS SR TOTAL SR FOR THE ORGINAL DESIGN PIPING (supply water) SR
WHAT MUST IT DO? IDENTIFY PRESENT FUNCTION FUNCTIONAL PHASE WHAT DOES IT NOW DO? SERVICE BUILDING ---SUPPLY WATER ---DRAIN WASTE ---PROVIDE LOOK ---PREVENT POLLUTION SERVICE BUILDING ---SUPPLY WATER ---DRAIN WASTE ---PROVIDE AESTHETIC ---PREVENT POLLUTION ---PROTECT HEAT ---PROVIDE DURABILITY
FUNCTIONAL PHASE FUNCTION WORKSHEET WHYHOW FUNCTION SUPPLY WATER To fulfill basic human requirements Through piping network To provide healthy environment to live and work DRAIN WATER Through piping network PROVIDE FIXTURES To provide service and aesthetics Through installation
FUNCTION – COST – WORTH FUNCTIONAL PHASE ITEM FUNCTION PRESENT COST(SR) WORTH VALUE INDEX VERBNOUNKIND ALT COST (SR) PIPINGSupplyWaterB20000 UPVC & CPVC PIPINGDrainWasteB4700UPVC FIXTURESServiceBuildingB67000CER GEN. ITEMSRegulateWaterS70000Brass TANKStoreWaterS27500Fiber
CREATIVE PHASE GENERATE IDEAS FOR PIPING TO SUPPLY WATER Pipes of Copper with insulation Pipes of Copper without insulation Pipes of HDPE Pipes of PPR Pipes of UPVC and CPVC Pipes of GI Pipes of BI Pipes of GPR
JUDICIAL PHASE CWI CW/oI HDPE PPR UPVC & CPVC GI BI GPR CWI
IDEA COMPARISON JUDICIAL PHASE IDEAADVANTAGESDISADVANTAGESRANKCWI No heat loss High cost CW/oI Easy installation Heat losses and weak HDPEDurable High cost PPR Durable and new technology Requires special device to install UPVC & CPVC Low cost, durable and easy installation Heat loss GPR Durable and easy installation Very high cost
DETERMINING WEIGHTS FOR EVALUATION A – Performance B – Maintenance C – Initial cost D – Durability E – Pollution free ORIGINAL LAYOUT JUDICIAL PHASE A-3A/CA/DA-2 C-2B/DE-2 D-3C-2 D-3 3. MAJOR PREFERENCE 2. MEDIUM PREFERENCE 1. MINOR PREFERENCE RAW SCORE ASSIGNED WEIGHT
JUDICIAL PHASE HDPE/ CWI/ PPR CWI HDPE PPR UPVC & CPVC GPR
PROPOSAL 1 UPVC and CPVC types of pipes are capable of fulfilling all the requirements and achieve desired objectives. DEVELOPMENT PHASE COST DATA PIPING (Supply Water) SR Savings in Initial Cost SR – 76 % FOR THE PROPOSED DESIGN
DEVELOPMENT PHASE PROPOSAL 2 – 2 OVERHEAD TANKS Original Design: 2 Overhead tanks made of concrete with steel structure are to be constructed on the roof of the villa. Proposed Design: 2 Overhead tanks made of PVC can be installed which will give better performance and costs very less. Discussion: Concrete tanks do not restrict heat and it takes more time to construct, whereas PVC tanks are readymade, weather proof and takes very less time to install.
PROPOSAL 2 – 2 OVERHEAD TANKS DEVELOPMENT PHASE ORIGINAL DESIGN COST SR PROPOSED DESIGN COST SR SAVING SR %
LIFE CYCLE COST ANALYSIS FOR THE COMPLETE PROJECT DEVELOPMENT PHASE % ORIGINAL DESIGN (HDPE, CWI & PPR) PROPOSED DESIGN (UPVC & CPVC) ALTERNATIVE 1 (GPR) INITIAL COST MAINTENANCE SALVAGE LIFE CYCLE (PW)
DEVELOPMENT PHASE IMPLEMENTATION PLAN 1.Approval from management 2.Change the purchase order and select the best supplier 3.Mechanical engineering services 4.It takes 3 months 5.Deadline as per the site handover schedule
The proposed design will Supply water Drain waste Protect pollution Provide durability Prevent heat Do large saving Prevent maintenance costs Save time Improve appearance SUMMARY
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