Latest Space News
Tue, 19 Sep 2017 14:53:00 +0100
With the ''Space Strategy for Europe'' from the European Commission and the new ESA roadmap on the table, the European space stakeholders will have the great opportunity to debate and influence, at the highest level, the medium and long term development of European space programmes and of the spread of space services in many economic and societal activities as well as in a wide range of public fields, including security and defence. Download Conference Agenda | Register to a...
Tue, 19 Sep 2017 08:19:00 +0100
NASA's Hubble Space Telescope has observed a planet outside our solar system that looks as black as fresh asphalt because it eats light rather than reflecting it back into space. This light-eating prowess is due to the planet's unique capability to trap at least 94 percent of the visible starlight falling into its atmosphere. The oddball exoplanet, called WASP-12b, is one of a class of so-called "hot Jupiters," gigantic, gaseous planets that orbit very close to their host ...
Fri, 15 Sep 2017 18:13:00 +0100
Raytheon Company (NYSE: RTN) will continue its support for NOAA's Advanced Weather Interactive Processing System program that ingests and analyzes weather data, creating useful visualizations for forecasters and distributing time-sensitive weather statements such as watches and warnings across the United States. Used by more than 140 National Weather Service field offices, the AWIPS program informs decisions that save lives and protect property during natural disasters. Under the $269 mill...
Fri, 15 Sep 2017 15:00:00 +0100
The international Cassini mission has concluded its remarkable exploration of the Saturnian system in spectacular style, by plunging into the gas planet's atmosphere. Confirmation of the end of mission arrived at NASA's Jet Propulsion Laboratory at 11:55 GMT/13:55 CEST with the loss of the spacecraft's signal having occurred 83 minutes earlier at Saturn, some 1.4 billion km from Earth. With the rocket propellant for manoeuvering the spacecraft fully expended as planned touring Saturn and i...
Fri, 15 Sep 2017 14:17:00 +0100
Four of the latest set of Galileo navigation satellites will be launched on Ariane 6 rockets - ESA's first contract to use Europe's new vehicle. The launches are scheduled between the end of 2020 and mid-2021, using two Ariane 62 rockets - the configuration of Europe's next-generation launch vehicle that is best suited to haul the two 750 kg navigation satellites into their orbits at 23 222 km altitude. Under development, Ariane 6 is Europe's newest launcher, designed to extend guaranteed ...
Fri, 15 Sep 2017 14:00:00 +0100
The Space Alliance, formed by Thales Alenia Space (Thales 67%, Leonardo 33%) and Telespazio (Leonardo 67%, Thales 33%), today signed a partnership with the US-based company Spaceflight Industries which includes the following elements: A minority investment in Spaceflight Industries, which through its BlackSky business, has developed a geospatial platform and plans to build and operate a constellation of 60 small high-resolution observation satellites featuring very short revisit times; ...
Tue, 12 Sep 2017 16:33:00 +0100
Lockheed Martin (LM) unveiled a new small unmanned aircraft system (UAS) that has been designed and developed in the UK at the Defence and Security Equipment International (DSEI). OUTRIDER is a lightweight, canister launched UAS that has been designed by engineers at Lockheed Martin UK's Havant facility in partnership with Wirth Research, an engineering company with specialisation in aerodynamics and composite materials. At only four inches wide and weighing only 1.7 kilograms, it is designed...
Mon, 11 Sep 2017 13:00:00 +0100
Orbital ATK, a global leader in aerospace and defense technologies, today announced significant progress on the industry's first commercial in-space satellite servicing system. The Mission Extension Vehicle-1 (MEV-1) spacecraft successfully completed its critical design review earlier this year and is now in production with about 75% of the platform and payload components already delivered to the company's Satellite Manufacturing Facility in Virginia. The spacecraft will begin system-level testi...
Mon, 11 Sep 2017 10:07:00 +0100
Boeing will design and build seven super-powered medium earth orbit (MEO) satellites for SES, delivering efficient high-performance data communications services to users around the world. The O3b mPOWER satellites will include Boeing's most-advanced digital payload technology and will be built using electronics from the flight-proven 702 satellite platform customized to support the unique MEO environment. "With this new technology and design, Boeing is able to build satellites faster and m...
Wed, 6 Sep 2017 16:31:00 +0100
EchoStar Corporation and Lockheed Martin announced today that the EchoStar III satellite has been successfully recovered following an anomaly that occurred in late July and retired per the FCC regulations. "After the initial loss of contact, with a joint effort by EchoStar and Lockheed Martin, a command and control link was reestablished and deorbit maneuvers performed" said Derek de Bastos, chief technology officer for EchoStar Satellite Services L.L.C. "EchoStar III is now safely in a grave...
Wed, 6 Sep 2017 15:24:00 +0100
Orbital ATK, a global leader in aerospace and defense technologies, recently completed an important qualification test of the avionics system for the solid rocket boosters the company has developed and is now manufacturing for NASA's Space Launch System (SLS). Completion of this milestone is an important step toward preparing the SLS and Orion spacecraft for their first flight in 2019. Two Orbital ATK-developed five-segment rocket boosters will be used on each SLS launch to help provide initial ...
Tue, 5 Sep 2017 14:07:00 +0100
Launch is the most strenuous part of a satellite's life. To survive the extreme sound wave pressure and pounding vibrations generated by more than 700,000 lbs. of thundering rocket thrust, spacecraft need a solid, reliable design if they hope to arrive operational on orbit. On July 13, Lockheed Martin (LMT)'s second, fully-assembled GPS III space vehicle (SV) completed a realistic simulation of its future launch experience and passed this critical acoustic environmental test with flying color...
Thu, 31 Aug 2017 14:39:00 +0100
Stevenage -  Europe’s pollution monitoring satellite Sentinel-5 Precursor has left Airbus’ Stevenage site and is on its way to the launch site, the Plesetsk Cosmodrome in Russia. Launch is currently planned on 9 October on a Rockot rocket. The journey that will last 5 days, will start with a flight to Moscow aboard an Antonov 124, followed by another flight to Archangelsk in the northwest of Russia. The last leg of the journey will be a train ride taking the satellite 200km south of Archange...
Wed, 30 Aug 2017 16:00:00 +0100
Star Storm, an explosive performance inspired by stellar processes in the Universe, will be premiered at the 2017 Ars Electronica Festival in Linz, Austria, on 10 September. The creator of the show is Aoife van Linden Tol, the recipient of the first art&science@ESA residency organised by Ars Electronica in partnership with ESA. A multimedia artist working primarily with explosive materials, Aoife spent six weeks at ESA's technical heart in the Netherlands to research her project. Durin...
Sat, 26 Aug 2017 09:35:00 +0100
Orbital ATK, a global leader in aerospace and defense technologies, announced its Minotaur IV space launch vehicle successfully launched and placed into orbit the U.S. Air Force's Operationally Responsive Space-5 (ORS-5) spacecraft on August 26, 2017. The Minotaur IV launched from Cape Canaveral Air Force Station's Space Launch Complex 46 (SLC-46), which is operated under license by Space Florida. This mission marks the 26th consecutive successful launch for the company's Minotaur product line. ...
Fri, 25 Aug 2017 08:37:00 +0100
Rockwell Collins recently delivered the latest generation of Digital GPS Anti-Jam Receiver (DIGAR) airborne anti-jam and anti-spoofing technology to the U.S. Air Force Special Operations Command (AFSOC). The enhanced solution provides unsurpassed airborne anti-jam capability with over 10,000 times improved jamming resistance over the previous model. "From advanced fifth-generation aircraft to ground and maritime applications, this receiver is the most reliable military-grade GPS solution avai...
Thu, 24 Aug 2017 22:00:00 +0100
Orbital ATK (NYSE: OA), a global leader in aerospace and defense technologies, today announced it is in final preparations to launch the company's Minotaur IV rocket from Cape Canaveral Air Force Station, Florida, on Friday, August 25, at approximately 11:15 p.m. EDT. The Minotaur IV will carry the U.S. Air Force's Operationally Responsive Space-5 (ORS-5) spacecraft, which will monitor satellites and space debris to aid the U.S. military's space situational awareness. Building on the Minotaur...
Thu, 24 Aug 2017 14:53:00 +0100
ESA astronauts Samantha Cristoforetti and Matthias Maurer joined 16 Chinese astronauts earlier this month for nine days of sea survival training off China's coastal city of Yantai. The ultimate goal is for ESA to establish a long term cooperation with China and ESA astronauts to fly on China's space station. Returning from space, astronauts need to be prepared for any eventuality - including landing in water. Sea survival is a staple of all training but this is the first time that other ast...
Wed, 23 Aug 2017 22:31:00 +0100
NASA has selected Jacobs Technology of Tullahoma, Tennessee, to provide a broad spectrum of engineering and scientific support services at Marshall Space Flight Center in Huntsville, Alabama and the Michoud Assembly Facility in New Orleans. The Engineering Services and Science Capability Augmentation (ESSCA) contract is a cost-plus-award-fee indefinite-delivery indefinite-quantity contract that has a potential period of performance of eight years. It is a follow-on effort to the ESSSA contrac...
Wed, 23 Aug 2017 17:52:00 +0100
The industry-funded Low Cost Terminal (LCT) was successfully tested this month with an on-orbit Advanced Extremely High Frequency (AEHF) satellite. This critical milestone demonstrates the ability of an affordable tactical terminal to connect with the DoD's most highly assured protected communications network. The industry development team is led by Northrop Grumman Corporation (NYSE: NOC) and Lockheed Martin (NYSE: LMT). The AEHF system, designed for both strategic and tactical users, enabl...
More space news...
18014 cvs - 944 jobs

LOOKING FOR A JOB?

  • HOME
  • POST YOUR CV
  • JOB SEARCH
  • LOOKING FOR STAFF?

  • HOME
  • REGISTER
  • CV SEARCH
  • POST JOBS
  • CV: Thermal engineer

    Printer Friendly


    << BACK

    Personal information
     Name:<withheld>
     Age:<withheld>
     Country:<withheld>
     Location:<withheld>
    Contact information
     Email:<withheld>
     Phone:<withheld>
     Mobile:<withheld>
    Candidate Profile
     Date Submitted:15-04-2014
     Last Modified:16-04-2014 (08:36)
    Job information
     Current job:Thermal engineer
     Employment Term:Temp/Contract
     Job location:US only
     Date available:immediately
     Industry:Satellite Manufacturers and Subcontractors
     KeywordsSatellite Thermal Control, Heat Transfer, Numerical Analysis
    CV


     Residency Status: US Citizen

     

    Accomplishments:

    1.   Worked on thermal design and analysis of geosynchronous satellites of Indian Space Program at ISRO for 15 years as senior thermal scientist.

    2.   Thermal system design of high power density components of geo-synchronous satellites.

    3.   Strong programming experience in FORTRAN and C on UNIX based workstation such as IBM RS6000. Worked on various CAD packages such as AutoCAD, SDRC-IDEAS.

    4.   Thermal analysis of some of the critical components of the spacecraft for both transfer and in-orbit conditions.

    5.   Thermal control design using MLI, OSR, Al-blocks and heat pipes.

    6.   Thermal control issues like optical property degradation of materials such as OSR, MLI, low emittance tape, black and white paints have been studied.

    7.   Experience in thermal vacuum testing of satellites: Package thermal qualification level testing (hot and cold soak testing and thermal cycling) and on-orbit testing.

    8.   Transfer orbit as well as on-orbit temperature control of geo-synchronous satellite.

    9.   Post launch thermal analysis: thermal model correction.

    10. As a part of my Ph.D. thesis, extensive research has been conducted to develop techniques and algorithms to optimize the design of thermal control system of the spacecraft. This technique is found to be highly useful in improving the thermal performance of the geo-synchronous satellites. Results of these studies are published in several reputed international journals.

    11. Authored 5 technical reports (Department of Space, Government of India).

    12. Authored 4 papers. These are published in the Journal of Spacecraft and Rockets under the publication of American Institute of Aeronautics and Astronautics (AIAA), U.S.A. and Journal of Aerospace Engineering, U.K.

    13. Acted as a referee for the Journal of Aerospace Engineering, U.K.
     

     

    Specialization: Optimization of thermal systems design of spacecraft components using sensitivity analysis.  Expert in analysis and design of thermal control system for the electronic components of spacecraft systemsuch as, TWTA, Battery, Shunt regulator, Solar panel etc.  Expert in developing Mathematical models for any thermal control system. Expert in the topics such as Calculus, Differential equations, Numerical analysis, Linear algebra.

     

    Publications:

    1. Suresha, S., Gupta S.C., and Katti, R.A, "Thermal Sensitivity Analysis of Spacecraft Battery", Journal of Spacecraft and Rockets,AIAA, Vol. 34, No.3, May-June 1997, pp.384-390.

    2. Suresha, S., Gupta S.C., "Calculation of Sensitivities in Thermal Control Systems with Nonlinear inequality Constraints", Journal of Spacecraft and Rockets, AIAA, Vol.35, No. 4, July-August 1998, pp.552-558.

    3. "Effect of discontinuous heat loads during solar eclipse on transient thermal sensitivity analysis", AIAA, Vol. 36, No.6, November-December 1999, pp. 916- 918.

    4. "Thermal Sensitivity Analysis of a 22N Bipropellant Thruster in Spacecraft", Proc Inst Mech Engs, Vol 213 part G, pp.321-335.
     

     

    Professional Experience: 

     

    BAE Systems (TAC Contractor), Santa Clara, CA                        

    Worked as a Vehicle software Engineer. Job involved the electrical system integration and testing of combat vehicles.

    Functionality testing of RTD Sensors:

    RTD sensors were used to activate AFES system in the vehicle. Tested the sensors both in automatic and manual mode. In automatic mode, sensor needs to give feed back to the control unit called RIU depending upon its temperature co-efficient resistance. Subsequently RIU system has to drive the AFES.

    Firmware uploading on RIU and other LRUs:

    Uploaded the firmwares on different LRUs (Line replacement units) using respective hardware application tools through Ethernet/RS232 communication  ports. Participated in different system functionality testing relating to low and high voltage systems. Good knowledge of propulsion system of the vehicle. In-depth knowledge on network communication testing tools such as CANoe. Debugging Ethernet and CAN communication issues. Good knowledge on Hybrid Electric Drive.

     

    Uploading and downloading of firmwares on the system using RS32 and Gigabit etthernet communication. Management of system configuration files developed in C++.

     

    Santa Clara University, Santa Clara, CA                (2003-2008)   

                                

    Specializing in logic design and Digital Signal Processing.  Design and Analysis of combinational as well as sequential logic circuits have been studied in depth.  Initially, simple combinational logic circuits have been implemented using Xilinx Spartan FPGA. Subsequently, ALU (Adder/Subtractor) and Comparator designs were realized also with FPGA. 

     Hardware Description Language such as Verilog has been used to capture the schematic. Studied ASIC design philosophy and hardware verification procedures. Also the Digital Signal Processing techniques have been studying with a more emphasize on filtering design. Some of the analog circuits have been analyzed for their frequency response using SPICE tool.

     

    Protnov Computer School,Mountain View, CA            (2001 – 2002)

    Worked on Software QA tests and test automation projects using SILK.

     

    Indian Space Research Organization, India             (1985-2000)

    Worked in ISRO as a Project Manager for GSAT (geo-synchronous satellites) project. During the 15 years of career in ISRO, I worked on many different spacecraft projects as a Scientist, technical consultant and Project Manager.

    Following electronic components have been designed for their temperatures for both transfer as well as in-orbit conditions:
    Shunt regulator, SSPA, TWTA, Antenna, Solar Panel and house keeping packages of INSAT-2E and GSAT-2 satellite of Indian space program.

    Each and every component of the spacecraft has to be maintained under certain temperature regimes during all the phases of the spacecraft such as transfer orbit and in-orbit conditions. To ensure this thermal control system design is envisaged.
    Design of thermal control system for the spacecraft requires the development of mathematical model. Heat transfer in spacecraft systems is dominated by conduction and radiation modes of heat transfer. Mathematical model is developed using lumped parameter approach in conjunction with finite difference technique. Both coarse and detailed mathematical models have been developed depending on the problem such as panel level or package level analysis. Both steady state as well as transient models has been developed. Mathematical model for steady state results in system of algebraic equations and system of differential equations for transient problems. Both these types of equations are solved using numerical approach. Temperatures prediction has been done for transfer orbit as well as on-orbit conditions. Subsequently, temperatures are analyzed to design optimal radiator areas on the satellite equipment panel.

    Design of Thermal Control System for High Power Density Packages
    a) Development of Thermal Mathematical model
    b) Calculation of Steady state and Transient Temperatures :
    Design of thermal control system for high power density packages of the spacecraft such as Traveling Wave Tube Amplifiers (TWTA) and Solid State Power Amplifiers(SSPA) is an uphill task as all these components are to be maintained within a narrow temperature range and subjected to large amount of internal heat dissipation and external heat load boundary. In such situation, thermal management of these components has become an important task. In general thermal system design is envisaged with the help of thermal control systems such as heat pipes, Al- embedded blocks as heat sinks, OSR, MLI, selective tapes etc. In this particular situation, heat pipes, MLI and OSR are used to control the temperature of TWTAs and SSPAs. Heat pipe network has been embedded inside the equipment panel on which power density components are mounted. Surface of the equipment panel facing space is covered with MLI and OSR. Appropriate MLI and OSR sizing have been done to provide optimal radiator area. Surface facing the spacecraft is painted black to have more radiation coupling with spacecraft. Design of these thermal control elements is based on the thermal analysis under consideration. Thermal analysis of packages like these requires a usage of CAD tool such as I-DEAS. I-DEAS is generally available on UNIX workstations such as SGI, IBM and SUN. Simulation component of I-DEAS has been extensively used in this context.

    Master modeler has been used to simulate SSPAs and TWTAs. These components are of different shapes and sizes. Initially sub-parts were created using primitive parts such as sphere, cube, cylinder etc. Heat pipe modeling was also done appropriately. Subsequently all these parts were modified, dimensioned and assembled together to form an object. Once all the objects are created they are stored in library.

    Meshing module has been used to carry out solid mesh or surface mesh on the objects created. Both manual and mapped mesh has been used. Meshing results in the creation of different finite elements. These elements are grouped under different names. Finally all these objects are placed on the spacecraft panel which is also modeled and meshed in a similar fashion.
    Thermal analysis module is used to simulate conduction couplings, radiation couplings, and orbital heating for thermal control elements such as heat pipes, MLI, heat sinks and OSR.
     

    Finally Temperature prediction has been done using I-DEAS TMG. Both steady-state as well as transient temperatures were calculated from the above simulation model for both transfer as well as in-orbit conditions. Subsequently, the temperatures of all the components are analyzed to design optimal radiator areas for the components.

    Development of Interface Program between I-DEAS and Harvard Graphics
    Interface has been developed between I-DEAS and Harvard Graphics using 'C'. This program converts the temperature of I-DEAS stored in .unv file and TEMPF file to a format suitable for X-Y Plot using Harvard Graphics. This program is used for the generation of customized time v/s temperature data.

    Thermal Vacuum Testing for Satellites
    Important packages of the satellites were tested for hot and cold soak and thermal cycling conditions. Also, the thermal performance test has been done to verify the thermal mathematical model. Thermal mathematical model correction has been done based on the analysis of thermal performance test.

    Post-Launch Thermal Analysis of Satellites
    On-orbit temperatures of the packages are compared with the predicted temperatures and subsequently, the thermal mathematical model correction has been done with the help of thermal sensitivity studies.
     

     

    Education:

    Santa Clara University, Santa Clara, CA

    MS in Electrical Engineering                                                                (March. 2008)

    Graduate Certificate Program in Fundamental of  Electrical  Engg.        (Dec.  2004)              

     

    Indian Institute of Science

    Ph.D  in Applied Mathematics                                                                      (Sept.  1999)

     

    Annamalai University                                                                                    (Sept. 1991)

    MS in Physics (Electronics)


    Registering is the only way of posting vacancies and obtaining contact details of candidates in our CV database.

    All it takes is a few minutes and a credit card (Visa or American Express). To sign-up to this service, simply click on the Register link and fill in the form. You will then have instant access to our system after on-line payment where you will be able to complete the transaction in either US Dollars, UK Pounds or Euros.

    All online credit/debit card transitions are handled through our secure third party payment processors at WorldPay. Worldpay are part of The Royal Bank of Scotland Group, the 5th biggest banking group in the world, WorldPay payment solutions are trusted by thousands of businesses, big and small worldwide. 

    Pricing starts at €450 (approx £350 or US$500 - use the convert tool for an exact conversion) for one month unlimited job postings and unlimited CV database access (for one user), with package discounts available if you have more permanent recruiting needs. For example, a Gold subscription will give you unlimited jobs posting and unlimited CV database access for one year at just over €250 per month!

     

    2017 Pricing Structure (excluding VAT):

    1 month - Discovery 450 euros convert
    3 months - Bronze 1150 euros convert
    6 months - Silver 1950 euros convert
    12 months - Gold 3200 euros convert

     

    If online payment is not convenient, give us a call at +33(0)562211007 or send us an email at sales@space-careers.com. We will set up an account for you and invoice you. Note that you can also pay through PayPal.

    Please note that the posting of academic positions is free of charge. All you need to do is email us your job description and we will post it for you.

     

    VAT:

    Spacelinks is based in France so the following European Union regulations regarding electronic commerce apply:
    - if your business is located outside the EU, VAT does not apply to you
    - if your business is located in France, you will be charged a 20% VAT
    - if your business is located in the EU and you don't have a valid VAT registration number, you will be charged a 20% VAT
    - if your business is located in the EU and you do have a valid VAT registration number, you won't be charged VAT provided you give us your VAT number (mandatory for invoicing)

     

    Support:

    For sales enquiries and general information, you can call us on +33(0)562211007.
    Support is available Mon-Fri on +33(0)562211007 or via email. Out-of-hours support is provided only via email.

    Please also note that we are located in France. Our normal office hours are 09:00 to 18:00 Monday to Friday. France timezone is GMT+1.

     

    Warning:

    We are very serious about our job seekers privacy so only legitimate recruiters and employers are eligible for a recruiter account. All subscriptions requests will be manually approved and recruiter accounts constantly monitored. Users who enter inaccurate or incomplete information will not gain access to post jobs or search resumes. Sharing of login details with a third party will result in the suspension of the recruiter's account with no subscription refund.
    Recruitment agencies are only eligible for a Gold package and recruitment agencies recruiting for companies already using Space Careers will not be accepted.

    To ensure you are approved, please include the following on your application:
    * The website address of your Company. Under construction websites will be rejected.
    * Email - Must end in @yourcompany.com. Applications using free email accounts such as Hotmail, Yahoo or Gmail will be rejected.

    Individual exceptions can be made on a case by case basis by emailing sales@space-careers.com. Accounts found not to be in compliance will be deleted.

     
    Terms & ConditionsCopyright ©2017 Spacelinks
    Web Analytics