Genpact Limited · NYSE:G

Genpact — Technical Presentation

6 slides from Genpact's technical presentation

  1. Slide 1: Inspection Calculations

    Inspection Calculations Objective:  To ensure that the chiller is running right at startup and establish a baseline  To look for deviations from the baseline while the chiller is running at partial load Duration of Inspection: 30 minutes-1 hour Documents Required/Screens to Refer to:  OptiView Sa

  2. Slide 2: Evaporator Tonnage and Psi to Feet of Water

    Inspection Calculations Formula/Representation Example Evaporator Tonnage 𝐺𝑃𝑀 × ∆ 𝑇 A chiller is 𝐸𝑣𝑎𝑝𝑜𝑟𝑎𝑡𝑜𝑟 𝑇𝑜𝑛𝑛𝑎𝑔𝑒 = 24 changing the Objective: To calculate temperature of 240 how many tons of Where: GPM from 54 refrigeration the chiller is  GPM represents the flow rate…

  3. Slide 3: Feet of Water to psi and Condenser Tonnage

    Inspection Calculations Formula/Representation Example Feet of Water to psi Feet of Water = psi × 2.31 Convert 12.5 Feet of Water to psi. Method 1: 𝑆𝑖𝑛𝑐𝑒 1 𝐹𝑜𝑜𝑡 𝑜𝑓 𝑊𝑎𝑡𝑒𝑟 1 = 2.31 12.5 𝐹𝑒𝑒𝑡 𝑜𝑓 𝑊𝑎𝑡𝑒𝑟 12.5 = 2.31 = 5.41 Method 2: Since 1 Foot of Water = 0.433 12.5 Feet of…

  4. Slide 4: Flow Rates and Chiller Efficiency

    Inspection Calculations Formula/Representation Example Flow Rates A chiller has a 𝑃𝐷2 𝐺𝑃𝑀2 = 𝐺𝑃𝑀1 design flow rate 𝑃𝐷1 Assumptions: through the  The tubes should be evaporator of 1,500 clean. Where: GPM with a pressure drop of 27  There should be no  GPM2 = Actual GPM feet. Assuming…

  5. Slide 5: Integrated Part Load Value and kW Calculation

    Inspection Calculations Formula/Representation Example Integrated Part Load 1 𝐼𝑃𝐿𝑉 = Value 0.01 0.42 0.45 0.12 𝐴 + 𝐵 + 𝐶 + 𝐷  IPLV is a single part load efficiency number for water chillers. Where:  IPLV has developed  A = kW/ton (EER or COP) at an equation to provide 100% Load a…

  6. Slide 6: Electrical Horsepower

    Inspection Calculations Formula/Representation Example Electrical Horsepower 𝐼 × 𝐸 × 1.73 × % 𝐸𝑓𝑓 × 𝑃𝐹 A 460 VAC three- 𝐻𝑃 = phase motor has 746 Definition: One Where: the power factor of horsepower refers to the 0.88, motor amount of coal a horse  HP = Horsepower efficiency of 92% could…

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