Sunday, February 27, 2011

Ulu Jelai Hydroelectric Project

The Ulu Jelai Hydroelectric Project is a 372MW hydropower development on the Bertram River in Pahang State. The scheme is estimated to produce an annual energy supply of 326GW.

The main features of the project are an 84m high dam with 1.3 million cubic meter embankment volume, a 100m wide ungated spillway, two deep sluice gates for the excavation of sediment, diversion weirs on the Telom and Lemoi rivers for the transfer of water to Susu Dam, a 20m high intake tower and an underground powerhouse cavern.

SMEC is carrying out a feasibility study for the Ulu Jelai hydroelectric project. SMEC’s services include: preparation of geotechnical investigation and topographic surveys, review of environmental data collection and hydrological studies, preparation of risk assessments during construction and operation, reservoir operation study, optimisation of hydroelectrical plant configuration, review of designs, preparation of final project layout, cost estimations and preparation of economic and financial analyses, preparation of tender design drawings and bidding documents and assistance in the tendering process.

Heat Exchanger Principles - Sample

Heat Exchanger Principles - Sample



Training on the working principle of a shell and tube shell and tube heat exchanger for PROCESS ENGINEERs.

Building Heat Exchanger

A heat exchanger is a equipment built for efficient heat transfer from one medium to another. Here is a video on building heat exchangers.

Monday, February 21, 2011

Thermography

Infrared thermography, thermal imaging, and thermal video are examples of infrared imaging science. Thermal imaging cameras detect radiation in the infrared range of the electromagnetic spectrum (roughly 9000–14,000 nanometers or 9–14 ┬Ám) and produce images of that radiation, called thermograms. Since infrared radiation is emitted by all objects near room temperature, according to the black body radiation law, thermography makes it possible to see one's environment with or without visible illumination. The amount of radiation emitted by an object increases with temperature; therefore, thermography allows one to see variations in temperature. When viewed through a thermal imaging camera, warm objects stand out well against cooler backgrounds; humans and other warm-blooded animals become easily visible against the environment, day or night. As a result, thermography is particularly useful to military and other users of surveillance cameras.

Thermography has a long history, although its use has increased dramatically with the commercial and industrial applications of the past fifty years. Government and airport personnel used thermography to detect suspected swine flu cases during the 2009 pandemic.[1] Firefighters use thermography to see through smoke, to find persons, and to localize the base of a fire. Maintenance technicians use thermography to locate overheating joints and sections of power lines, which are a tell-tale sign of impending failure. Building construction technicians can see thermal signatures that indicate heat leaks in faulty thermal insulation and can use the results to improve the efficiency of heating and air-conditioning units. Some physiological changes in human beings and other warm-blooded animals can also be monitored with thermal imaging during clinical diagnostics.

The appearance and operation of a modern thermographic camera is often similar to a camcorder. Often the live thermogram reveals temperature variations so clearly that a photograph is not necessary for analysis. A recording module is therefore not always built-in.

The CCD and CMOS sensors used for visible light cameras are sensitive only to the nonthermal part of the infrared spectrum called near-infrared (NIR). Thermal imaging cameras use specialized focal plane arrays (FPAs) that respond to longer wavelengths (mid- and long-wavelength infrared). The most common types are InSb, InGaAs, HgCdTe and QWIP FPA. The newest technologies use low-cost, uncooled microbolometers as FPA sensors. Their resolution is considerably lower than that of optical cameras, mostly 160x120 or 320x240 pixels, up to 640x512 for the most expensive models. Thermal imaging cameras are much more expensive than their visible-spectrum counterparts, and higher-end models are often export-restricted due to the military uses for this technology. Older bolometers or more sensitive models such as InSb require cryogenic cooling, usually by a miniature Stirling cycle refrigerator or liquid nitrogen.

source: wikipedia

Friday, February 18, 2011

Malaysia drops 300MW coal-fired Sabah power plant project

KOTA KINABALU, Feb 17 (Bernama) -- The more than 3.3 million people in Sabah can now heave a big sigh of relief as the government has made a final decision not to build coal-fired power plants in the state.

The long-awaited decision proved beyond doubt that the government subscribed to the 1Malaysia concept which prioritised the people's interests.

In delivering the good news yesterday, Chief Minister Datuk Seri Musa Aman said the Barisan Nasional (BN) government under the leadership of Prime Minister Datuk Seri Najib Tun Razak was "a government that always listens to the voice and feels the pulse of the people".

The timely announcement was made all the more sweet because the Federal and state governments had also agreed to use liquefied natural gas (LNG) to generate power instead of coal-fired energy.

"This is a perfect new year gift for the people of Sabah. This decision is correct and it reflects the BN's sensitivity to the grouses of the people.

"It means that our Chief Minister is listening and we in Parti Bersatu Sabah (PBS) certainly welcome this decision," said PBS secretary-general Datuk Henrynus Amin to Bernama, here Thursday.

For this, he congratulated Musa on his bold decision to cancel out the proposed coal plant project in Lahad Datu for the good of the people.

"We believe that the state government must have taken into account all factors before making the decision," he said.

Local political analyst Edward Kandok perceived this development as another "plus point" for the BN to further strengthen its position in Sabah, dubbed as a "fixed deposit" for Barisan.

"This is the kind of government we want. I believe the majority of the local people are happy with the government's decision that finally put the coal plant issue to rest," he said.

In September 2009, Najib disclosed Felda Sahabat in Lahad Datu as the proposed site for the construction of the coal-based power plant.

Currently, the electricity supply capacity in the eastern coast of Sabah is 200 megawatts from a diesel-based power plant.

Environmental groups such as Green Surf have protested against the construction of the coal-based power plant, which they consider as "dirty" energy, and called on the government to scrap the plan.

However, in August last year, the Environment Department had rejected the Detailed Environmental Impact Assessment (DEIA) for the project but Tenaga Nasional Bhd (TNB), in its 2010 Annual Report, mentioned that "a reviewed DEIA report will be submitted for study and approval" for a 300MW plant.

-- BERNAMA

Honda Recall City and Jazz

Yesterday, Honda Malaysia announced that they will call back 21,956 units of the third-generation City (model year 2009) as well as 1,680 units of the second-generation Jazz (model year 2009 and 2010).

Honda addresses problems with the lost motion springs and the retainers in the affected vehicles, with replacement of these to be carried out with countermeasure parts.




Monday, February 14, 2011

TZIDC-200

TZID-C

TZIDC-200
The New Member of the Exd / ExP Family TZID-C200 serves for easy installation in hazardous areas for both the explosion proof housing as well as its capability of being adapted to all common valves with either linear or rotary movement
  • Flameproof enclosure acc. to FM / CSA, EEx d (ATEX) andintrinsically safe (ATEX)
  • Vibration immunity up to 10 g 20...80 Hz
  • Autostroke function serves for perfect adaption to valve - fully automatic
  • HART-Protocol as standard for full access to smart functions, diagnostics, maintenance and fault detection; also designed for fieldbus communication
  • One positioner for linear and rotary actuators
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