10/02/2014

Hi Company Shift - Drake & Scull " Contract to carry out mechanical, electrical and plumbing works "

Hi Company Shift - 


Drake and Scull signs $87.46mn Saudi MEP deal

on Feb 5, 2014 



Dubai's Drake and Scull has won an $87.46mn (SAR 328mn) contract to carry out mechanical, electrical and plumbing works at King Saud University in Riyadh.

In a bourse statement the company revealed the deal will see them design, install, test and commission complete electro-mechanical works for three buildings at the university's endowment projects. It said work on the development will be completed by 2015. 

The news comes just days after Drake & Scull Qatar (DSI Qatar) won a contract worth 400mn riyals ($110mn) for mechanical, electrical and plumbing (MEP) work at the Mall of Qatar, which is now under construction near Doha.



Drake & Scull Qatar (DSI Qatar) has won a contract worth 400m riyals ($110m) for mechanical, electrical and plumbing (MEP) work at the Mall of Qatar, which is now under construction near Doha.




Under the terms of the agreement, DSI Qatar will install all electromechanical works on the three-storey mall which will feature a hypermarket, a multiplex, five department stores and at least 20 restaurants. In addition to the car parking accommodating 7000 cars, the mall will also have its own metro station.

Karem Akawi, area general manager, Drake & Scull Qatar, said: “The Mall of Qatar is a very prestigious project award for DSI and will build upon the rich experience we have in mega retail projects.

“Our engineering expertise is one of the central pillars of our success and will continue to be a vital factor for driving growth in Qatar during the crucial years leading up to the World Cup.

We anticipate positive development in the rail sector as we have cemented strategic alliances with leading international rail experts to address the challenges and needs of Qatar Rail."

“We also see untapped potential in the water and waste water sectors and we are well placed to leverage our patented European technology through our German subsidiary Passavant Roediger to lead the modernization of Qatar’s infrastructure.”

Work on the project is scheduled to start in the first quarter of next year and is slated for completion in June 2015. UrbanCon Trading and Development are the main contractors on this commercial development.

Earlier this year, Drake & Scull Qatar was awarded a QAR 304m ($84m) contract for a mixed-use real estate development project in Doha and a second residential project worth QAR 180m ($49m). 



DSI Qatar has also been associated with several prestigious projects since the early 2006 such as the Four Seasons Hotel, the Qtel Tower and the Doha Land project and has a healthy backlog and a history of consistent profitability. 

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Hi Green Tip #4: Hi Size and Select Fans Near Their Peak Total Efficiency.

Even the most efficient fan models can operate inefficiently if improperly sized.Fans selected close to their peak total efficiency (pTE) will use less energy. The 2012 International Green Construction Code requires selections within 10% of peak efficiency, and ASHRAE Standard 90.1,

Energy Standard for Buildings Except Low-Rise Residential Buildings, is considering language that would require a 15% allowable range. If a fan is selected to operate more than 15 point below its peak efficiency, it is probably undersized to result in the lowest purchase price (first cost). The smaller, less-expense fan will have to run much faster with higher levels of internal turbulence than its larger cousin to meet the required air flow, thus consuming a lot more energy.The cost difference to select a larger fan closer to peak operating efficiency is very small when compared to the energy saved.

Simple payback for 10% selections is usually less than one year. Smaller fans operating faster will also require more maintenance and earlier replacement. Smaller fans generate more noise as well.Below is a table showing the output from a fan manufacturer's sizing and selection program. All of the fans in the table would "do the job" of providing the required airflow at the required pressure.

The fan sizes range from 18-inches in diameter to 36-in. Notice that as the fan diameter increases, the fan speed decreases, as does the fan power (expressed as "brake horsepower"). The red region of the table indicates poor fan selection practice - none of these fans have an actual total efficiency (at the airflow and pressure required) within 15 points of peak total efficiency. The green region indicates proper fan selection process - all have an actual total efficiency within 15 points of peak total efficiency.

Note that the 30-in. diameter fan consumes roughly half the power of the 18-in. fan. The lowest cost fan shown is probably the 20-in. fan, with an efficiency of 49%, 29 points off the peak. If this fan runs 6,000 hours per year at a utility rate of 10 cents per kwh, it will cost $4,300 a year to operate. A more efficient selection might be the 24-in. fan because it is "Class I" and complies with both ASHRAE 90.1 and the Green code requirements. It has an actual efficiency of 69%, 10 points less than the peak efficiency of 79%. This fan would cost $3,100 to operate, which is probably more than the fan itself costs. A more efficient 30 inch selection is only 1 point from its peak efficiency of 83% and will consume only $2,600 per year, saving $500 a year relative to a 24-in. fan, and $1,700 a year over the lowest cost fan. Generally, the difference in initial cost of the most efficient fan selection is paid back in less than 5 years over more common less efficient alternatives. Perhaps this observation will bring it home.

Most fans consume more each year in energy cost than they are worth. So, when you buy a fan, think of it as a liability, not an asset. Your objective should be to make the liability placed on those who will pay future energy bills as low as possible. The leverage implicit in choosing a larger, more efficient fan is much greater than most people appreciate. And fans last a long time – 20 years plus – so choose wisely.The bottom line is this. Right-sizing a fan can yield energy savings and generate a lot of operating cost savings for the facility owner or occupants for many, many years.

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