Thursday, April 26, 2012

Pricewaterhouse Coopers Singapore Needs Mechanical Engineer

 PricewaterhouseCoopers Singapore with assistance from their Manila office has been awarded the contract to become its Transactions Advisor for PPP projects by the Private-Public Partnership
Center ( PPP Center). PPP Center is in-charge for preparing projects for private sector bidding. For example, toll roads, MRT, etc. Our contract is for the cold chain storage for the Dept. of Agriculture.


For those interested, prepare resume in the ADB CV format together with his e-signature and they will submit to the PPP Center immediately. PPP Center will confirm if they agree to this person being acceptable.
The requirement is urgent because we want to start the project with a complete team and it is just the ME (mechanical engineer) we are waiting for. As to level of participation, the work is anticipated to take about 2-3 weeks work intermittent during the feasibility stage. A retired ME is ideal since it is only part time work.

Required qualifications as follows :

"A qualified engineer in relevant discipline with 5 years’ experience in refrigeration technology, temperature control/monitoring and management with extensive knowledge on storage and handling systems for food and other agricultural and fisheries products."

Please let me know if you are interested. I will send you the ADB CV for you to fill up and more information regarding the project via E-mail.

Sunday, April 22, 2012

PSME MID – YEAR CONVENTION

The Philippine Society of mechanical engineers will be holding its 11th PSME Mid-year National Convention on June 21 - 23, 2012 at the KCC Mall Convention Hall, located at J. Catolico Ave., General Santos City. Again, we would like to invite you to take part on this relevant gathering of Mechanical Engineers from the Industry, Academe, Government and Schools respectively.

We are inviting all mechanical engineering professionals to attend and participate in the 11th PSME Mid Year Convention to be held in the “Tuna Capital of the Philippines”.

The convention, with the Theme: “PSME Building Global Excellence through Commitment and Teamwork”, emphasizes the values of teamwork and commitment among mechanical engineers by shaping them to achieve excellence in building global progress and technological advancements.



Likewise, this conference will also be observed in line with General Santos City’s “Yaman GenSan”. It is the city’s way of celebrating the business month. The fishing industry is the main engine of the General Santos City’s economy by creating a prominent mark in the global economic landscape.

With these concurring events, the convention promises further enriching experiences, acquaintances and excellent opportunities for networking with our fellow professionals.

We are looking forward to your presence on this noteworthy event for all Mechanical Engineers, Certified Plant Mechanics and BSME graduates

Please let me know if you will attend.

REGISTRATION FEE:
Early Bird Registration : Php 3,200.00
Life Member : Php 3,500.00
Regular Member : Php 3,700.00
Student/Spouse : Per meal ticket

PSME National Mechanical Engineering Educators Congress

The first PSME National Mechanical Engineering Educators Congress will be held on June 7 & 8, 2012 at the Philippine Columbian Association, Plaza Dilao, Paco, Manila, MM. We are inviting all ME professionals and faculty members from educational institutions to attend.

The theme for the event will be "Strengthening the Mechanical Engineering Education through Sustainable Collaboration and Networking of Mechanical Engineering Educators".

The 1st PSME National Mechanical Engineering Educators Congress will provide a platform for the exchange of information, experience and discussion on mechanical engineering research and education - and its role in the other engineering disciplines. This Congress will be an excellent venue for scientists, researchers, engineers and academicians to interact and exchange relevant information on mechanical engineering research and development. The scope of the Congress will include discussions on the following issues: mechanical engineering education, upgrading mechanical engineering curriculum, laboratories and equipment, professional mechanical engineering licensure examinations for educators, continuing professional education of PSME and sharing of best practices in mechanical engineering education. Through these, the academe will become more dynamic in honing more globally competitive mechanical engineering graduates and consequently, globally competitive professionals.



Registration fee is P 800. Let me know if you are interested.

Monday, April 9, 2012

Sources of Vibration in Control Valves

Compressible fluid flow through control valves will inevitably cause some form of flow induced vibration in the fluid system. Identifying the type and cause of the vibration requires detective work.


Control valve vibration may be caused by many factors, some generated internally by the process stream and others generated externally. Some of the different forms of flow induced vibration are enumerated as follows :
  1. Process Stream Energy Release - a flowing process stream contains considerable energy, a portion of which is released during its journey through a valve. The released energy takes the form of fluid turbulence, viscous drag, generated noise flow instabilities, and other forms of released energy. This energy will also interact with the valve trim and may cause noticeable vibration.
  2. Upstream Equipment Pulsations - Compressors, pumps and other upstream equipment generate mechanical vibrations and pressure pulsations that interact with other process equipment and piping in the system. The vibration energy is efficiently carried downstream by the piping system. In addition, pipe configurations such as elbows and tees upstream of the valve can create swirling flows and introduce turbulence, which may affect the valve.
  3. Pipeline Resonance - Pipelines with long runs between supports can resonate at the first or second bending mode of the system, vibrating up and down in a "U" or "S" shape. Higher order pipe natural modes (radial and circumferential) may also be excited. These natural modes can be excited by other vibration levels to build up and affect process equipment and the supporting structure.
  4. Support Structure Vibration - Some form of vibration is always present in a running plant, but normally, it is not severe enough to be problematic. However, if the support floor resonates in tune with this vibration, the amplitude can increase to the point where it may become destructive.
  5. Acoustic Noise Creation - Very high sound power levels can release enough energy to create serious valve vibration and in extreme cases, cause metal fatigue.
Excerpted from "Control Valve Design" by Asher Glaun