Dharmendra Vaishya

Jumbo Electronics Co. Ltd.(LLC) SICO Division, Jebel Ali (Dubai UAE)


Presently working as a System Engineer in Product Development Department (PDD) at Supra Industrial Co. Ltd. (LLC)
(SICO is a manufacturer in Ice Cream Freezers (Horizontal & Vertical Type).
Established in 1974, the flagship company of the Jumbo Group, Jumbo Electronics is UAE’s leading distributor and retailer for IT & consumer electronics. Since its inception, Jumbo has been the chief distributor of the iconic brand, Sony in the UAE. Jumbo is also a trusted distribution and retail partner for many of the world's other leading brands including Acer, Apple, Asus, Bajaj, Blackberry, Brother, Casio, Daikin, Dell, Dometic, Dyson, Epson, Gorenje, HP, HTC, Hisense, Lava, Lenovo, LG, Motorola, Nokia, Obi Mobiles, Oppo, Ricoh, Samsung, Sennheiser, Xolo and YOTA Devices. Together with its extensive network of retail stores and six service centres spread across the emirates, Jumbo is a formidable force in the industry and is presently enjoying a growing distribution and retail presence in Oman, Qatar, Bahrain and Kuwait.
Setting new benchmarks in customer service in the markets in which it operates, Jumbo has built its reputation through uncompromising adherence to quality and unrivalled after-care, with its dedicated 70, 000sq ft. service centre in Jebel Ali and 24/7 customer hotline 800JUMBO.
Over the 40 years since it was first established in the UAE, Jumbo Electronics Company Ltd has evolved into a multi-disciplinary conglomerate with a regional presence covering Oman, Kuwait, Qatar and Bahrain
Key Deliverables:
 Design and development of Refrigeration system for Vertical freezers, Horizontal hard top & Glass top chest freezers.
 Development of 3D/2D models using Solid works.
 Structure design, Plastic part design and drawing creation through Solid works.
 Product Cost estimation and Concept feasibility study.
 Creation of CAD Models, Manufacturing drawings, Design calculations and related design documents.
 Responsible for Prototype development based on initial drawing release to validate Thermal Performance.
 Compressor selection based on excel based Heat Load Calculation for different capacity freezers.
 Responsible for Certification testing like ESMA, G-Mark, EMC Testing etc.
 Responsible for safety Certification of IP24, CB Certification from external lab (i.e. Intertek, UL, SGS etc.).
 Refrigeration Cycle balancing & system optimization to achieve maximum Thermal performance.
 Design & Development of Vertical & Horizontal Freezers for London dairy, Baskin Robbins, Galaxy Ice Cream, Move & Pick and Awal Dairy etc.
 Design & Development of Cassete type system with Service free refrigeration system.
 Design & Development of Sub-zero coolers for beverage Customers like Coke & Pepsi.
 Designing and development of systems with HCs R-290 and R600a to achieve least ODP & GWP.
 Energy Efficiency Rating improvement of freezers for Saudi market as SASO standards.
 Facilitating new product development activities with key focus on QCD (Quality, Control & Delivery).
 Trouble shooting in field issues, Root cause analysis and on time solution to fix the warranty exposure

Major Project handled :

 Title: Involved in Development of Dual Evaporator system for quick defrosting.

Synopsis: Vertical freezers developed with dual evaporator to melt the ice by switching the evaporator with the help of solenoid valve for effective cooling and high reliability of compressor.

Mahle Behr India Pvt. Ltd., Greater Noida (UP) \{Former Delphi Thermal\}
Presently working as Project Leader for Condenser Group with Product Engineering Department for Mahle Behr (MAHLE GmbH is an automotive parts manufacturer based in Stuttgart, Germany. It is one of the largest automotive suppliers worldwide. As a manufacturer of components and systems for the combustion engine and its periphery, the company is one of the three largest systems suppliers worldwide for engine systems, filtration, electrics, mechatronics, and thermal management. In 2014, Mahle GmbH sales amounted to nearly € 10 billion.
As of 2015, its 75, 000 employees work in 170+ production plants and thirteen research and development centers in Germany, Great Britain, USA, Brazil, Japan, China, and India. Worldwide, 5000 development engineers and technicians work as partners for MAHLE's customers on new products and systems) located in Greater Noida, India.
Key Deliverables:-
 Design and development of MCHX (Micro Channels Heat Exchangers-Aluminum Condenser) for Residential & Commercial Application.
 Provide engineering calculation, design proposals and perform product and design simulation tests.
 Monitor and report progress of design activity and ensure timely completion of projects according to planned schedules
 Set up periodic reviews with Global team and concerned Product line Chief engineers.
 Identify the needs and goals of a new product; coordinate with market researchers and materials suppliers to evaluate market needs, existing competition and potential cost savings.
 Cost & Weight Optimization through VA/VE and Benchmarking initiatives
 Coordination with other design departments/ suppliers & related agencies for design and development Activities
 Creation & Management of Bill of Material.
 Involved in Costing & Business Case finalization.
 Addressing the design quality issues from Production line and Market
 Hands-on prototype sample making & Laboratory testing (Performance & Reliability Testing)
 Effectively diagnose and identify faults and failures with heat exchangers provide effective solutions and escalate where necessary

Achievements:
 Replaced the existing aluminum condenser by 25% thinner Condenser without compromising on performance and saved 20% material content for 1.5TR mini split application.

 Successfully completed the Benchmarking of Saudi AC Manufacturer’s (LG Shaker, Zamil, Alessi, Toshiba etc.) units and proposed the Mahle Value proposition proposal of aluminum condenser with saving of 40~60% on RM side without compromising on thermal performance.

Major Project handled :
 Title: Involved in Development of Slab type Heat Exchanger for Heat Pump application.
Synopsis: Heat exchanger for heat pump works as evaporator and condenser both so design & construction is totally different from conventional Aluminum micro channel condenser; Tube placement is vertical to enable the water drainage. Distributor and Collector being used with single pass arrangement to reduce the pressure drop while it works as evaporator. Alloy system of heat pump is also superior because its highly prone to corrosion due to stagnant water.

 Title: Enhancement of Field Durability life by 3 times with Mahle Patented Folded Tube Technology.
Synopsis: Folded tube for condenser is one of the patented technologies of MAHLE, folded tube heat exchangers have 3 times more life than extruded type in SWAAT test because of superior alloy system and it is cheaper by 30% because of in-house manufacturing & few other key potential factors.

 Title: Thermal Performance boosted up by 20% & RM cost dropped down by 15% with Mahle Patented Internal Heat Exchanger Technology.
Synopsis: IHX is a type of auxiliary heat exchanger which is used in refrigeration circuit to increase the sub cooling which ultimately leads to enhance the thermal performance and reduce the size of primary heat exchanger to save on RM Cost.

Frigoglass India Pvt. Ltd., Gurgaon (Haryana)

Worked as Senior System Engineer in Product Development Department (PDD) at Frigoglass India Pvt Ltd.
(Frigoglass is a manufacturer in commercial refrigeration and West Africa's leading glass producer.
Frigoglass has operations in 19 countries across 5 continents including production hubs in Romania, Russia, Greece, U.S.A., Turkey, India, China, Indonesia, South Africa and Nigeria.
The company's customer base consists of the Coca-Cola Company Bottlers (Coca-Cola Hellenic, Coca-Cola Enterprises, BIG, Coca-Cola Amatil, Coca-Cola Sabco), Brewers (Heineken, SABMiller, Carlsberg, ABInbev, Efes),
Pepsi and Dairy companies (Nestle, Danone) and many others)
Key Deliverables:
 Designing and development of Refrigeration system for Visi coolers, Open front coolers.
 Compressor selection based on Heat Load Calculation for different volumes of visi Coolers
 Approval testing for Coke, Pepsi, Heineken and SABMiller.
 Certification Testing of IP24, CC, UL, GHOST from third party like Intertek, UL, ERTL etc.
 Cycle Balancing & optimization of system to achieve maximum thermal performance with minimum RM Cost.
 Design & Development of Top mount Refrigeration system for Pepsi and bottom mount for Coke.
 Design & Development of Cassete type bottom mounted easy to serviceable refrigeration system for Coke.
 Design & Development of Sub-zero coolers for Heineken.
 Energy efficiency improvement of the visi-coolers as per Coke & Pepsi Co standards.
 Designing and development of coolers with R-290 and R-744 Refrigerants for Coke.
 Introduction of electronic controllers like CAREL, ELSTAT, DANFOSS in Norcool Coolers for EER improvement
 Facilitating new product development initiatives with key focus on QCD (Quality, Control & Delivery).
 Filed issues root cause analysis and solution to reduce the in warranty failure cost of the product.

Achievements:
 Achieved Performance in S 30 model with small compressor (of S 20) to meet EER and saved ~$800 K / A
 Introduced Al-Al (RTPF) evaporator in visi cooler application and reduced cost of evaporator by 20%.
 Convert Refrigeration deck from Front suction type to Rear suction to get hot air blown on Glass Door to minimize condensation/ sweating issue.

Major Project handled :
 Title: Involved in Development of Small Cassete system which is Quick Serviceable & Market retrofit-able.
Synopsis: Small Cassete designed for single door visi coolers which are very compact with integration of all refrigeration, electrical & electronic components in one box having key benefit of easy to serviceable and can be retrofitted in market easily.

 Title: Reduction of Power Consumption by 30~40% by Introducing of electronic controller “EMS”.
Synopsis: EMS is smart controller designed for visi cooler to reduce energy by programming the parameter for Compressor cut off set point for Day & Night, defrost time & interval, evaporator & Condenser fan motor on-off, illumination light on-off and provides safety to compressor during condenser blockage & evaporator freeze up.

 Title: Involved in Development of “S12 Diageo” visi cooler for rural area to run on interrupted Power Supply.
Synopsis: S12 Diageo is a cooler designed for Rural area where power supply is limited for 10~15 hours. It equipped with two evaporator coils where one coil used to freeze up the water during running hours (which installed inside the water & Glycol mixture tank) and it will radiate the cooling effect during interrupted power hours.

 Title: Installation & Commissioning of Psychometric Environmental Chamber for visi cooler Testing.
Synopsis: Lead the installation of Environmental chamber ( Range of 10°C ~ 60°C & RH 25% ~100% ) with Vertical
air flow type suitable to test 02 units of visi cooler at a time with the Refrigeration support from COSMIC
Refrigeration (Pune) and DAQ support from YOKOGAWA (Bangalore).