USE OF ANDROID MOBILE APP for remote operation of VALVES. Presented by: Betty Ouko 2018 G2G INNOVATION SEMINAR, PRIDEINN PARADISE RESORT 18TH JUNE - 22ND JUNE 2018

Technician, PIC - Technical service Olkaria BETTY MORAA OUKO Technician, PIC - Technical service Olkaria Qualifications: - Diploma in Electronics and Automation Engineering - Active member of Geothermal Association of Kenya Responsibilities: Her main focus is protection, instrumentation and control;ensuring maximum availability of all geothermal wellheads power plants. Key milestones/achievements include: Currently researching on implementation of Brine skin care products Vast knowledge in maintenance of power plant equipment in Thermal & Geothermal plants. JOH-KGN001-20071212-JvW-X1

Presentation Outline 1 2 3 Introduction Challenges Solution Benefits Recommendation Conclusion

INTRODUCTION Control Valves are used in most KenGen plants. The valves are used to control fluid flow by varying the size of the flow passage as directed by a signal from the controller. This enables control of pressure, level and flow rate via opening or closing.

Valves

INTRODUCTION CON’T HART Communication Protocol (Highway Addressable Remote Transducer) is a hybrid analog+digital industrial automation open protocol. HART is able to use 4-20 mA systems by superimposing digital communications on top of the 4-20 mA analog signal without disrupting it. The technology is also employed by other equipment for example Level, Pressure and Temperature transmitters.

Hart devices More Portable HART communication devices include HART 275,374 or 475 with an almost 80cm connector cable.

HART CONNECTION

HART DEVICE FUNCTIONS Checking device status Setting up of the device Calibration Tuning of the device

CHALLENGES Limited number of HART devices available. Time wasting during valve maintenance as the HART battery becomes low. Rapid Response team accessing this equipment's. Valve position makes access hard and dangerous. Reporting valve status.

OLKARIA II

OLKARIA 1AU LEVEL CV VALVE

OLKARIA 1AU STEAM COOLER VALVE

SOLUTION DevCom App.

SOLUTION HART device management has been made much easier now through the introduction of a HART communication app. The Bluetooth wireless interface between the HART modem and any Windows, Android and iOS (APPLE). device provides user safety and comfort because there are no wires to tangle or trip over.

DEVCOM APP FEATURES More

Device setup screen

COST Benefits Item description Unit(USD) 1 475 communicator 6896.00 2 Field accessory Kit 336.00 3 Power module 1007.00 4 Power supply and charger 444.00 5 Lead set with connectors 111.00 Clearing, duties and taxes 2436.00 Sub total 18,126.00 VAT (16%) 2900.16 TOTAL 21,026.16 In KES 2,139,622.04 More 1 dollar to Kes 101.76

COST BENEFIT ANALYSIS AMS TREX DEVICE The device was bought at approximately: 1,200,000.00 PROCOM SOL APP Downloading app Free (Play store) App License 800 USD (Kes 81,408.00) One off If there would be any retrofitting: Retrofitting Kes 900,000 TOTAL KES 981,408.00

COST BENEFIT ANALYSIS Total saving comparing with HART 475 of: No retrofit 2,058,214.04 With retrofit 1,158,214.04 Total saving compared to AMS TREX device: No retrofit 1,120,000 With retrofit 220,000

OVERALL BENEFITS Reduce plant downtime increasing availability. Safety and comfort of the employee. Less costly Makes decision making easy.

RECOMMENDATION We propose to do the 10 days’ free trial software license given by the manufactures after which we shall purchase license for one Procom Sol application to be used in Olkaria 1AU as the pilot plant before being rolled one to other plants. More