ACEM ENGINEERING AWARDS 2015

ACEM’s 16th Engineering Awards Competition 2015 was held in conjunction with the Association’s 52nd anniversary dinner. The Panel of Judges for this year’s competition comprised representatives from:

• Board of Engineers, Malaysia;

• The Institution of Engineers, Malaysia;

• Pertubuhan Akitek Malaysia;

• Construction Industry Development Board Malaysia; and

• Jabatan Kerja Raya Malaysia.

In evaluating the entries, the Panel of Judges considered originality, innovation and quality of engineering; the significance of the engineering solution; environment and social impact, maintainability and sustainability; significance of the project to the community; the degree to which the project met the client’s needs and budget; and the value to the profession at large.

This year, the Panel of Judges awarded four entries:

• “Yen So Wastewater Treatment Plant and Related Works, Hanoi, Vietnam” in the field of Infrastructure;

• “City Square Johor Bahru, Addition and Alteration” in the field of Buildings (Structures);

• “Wharf 8A at Northport, Port Klang” in the field of Infrastructure; and

• “District Cooling Plant at Lot 4U2 (Plot 12289) Phase 1, Precint 4, Putrajaya” in the field of Infrastructure.

Gold Award of Special MeritConsultant: Sepakat Setia Perunding (Sdn) BhdYen So Wastewater Treatment Plant and Related Works, Hanoi, Vietnam

ACEM Engineering Awards 2015

Ir. Dr. Lim Phaik Leng (SSP Sdn Bhd) receiving the Gold Award of Special Merit from the Minister of Works.

Ir. Patrick Augustin (PFAA Sdn Bhd) receiving the Silver Award of Merit from the Minister of Works.

Ir. Chua Eng Thye (SSP Sdn Bhd) receiving the Silver Award of Merit from the Minister of Works.

Ir. Daniel Lim (ADC Sdn Bhd) and Ir. Dr. Che Ariffin (EDP Consulting Group Sdn Bhd) receiving the Bronze Award of Commendation from the Minister of Works.

Ir. Dr. Lim Phaik Leng (SSP) and representative from Client, Gamuda Land Sdn. Bhd. with the Minister of Works, YB Dato’ Sri Hj. Fadillah b Hj Yusof and the ACEM President, Ir. Prem Kumar.

Ir. Patrick Augustin (PFAA) and representative from Client, Johdaya Karya Sdn. Bhd. with the Minister of Works, YB Dato’ Sri Hj. Fadillah b Hj Yusof and the ACEM President, Ir. Prem Kumar.

Ir. Chua Eng Thye (SSP) and representative from Client, Northport (Malaysia) Bhd. with the Minister of Works, YB Dato’ Sri Hj. Fadillah b Hj Yusof and the ACEM President, Ir. Prem Kumar.

Ir. Daniel Lim (ADC), Ir. Dr. Che Ariffin (EDP) and representative from Client, Gas District Cooling (Putrajaya) Sdn. Bhd. with the Minister of Works, YB Dato’ Sri Hj. Fadillah b Hj Yusof and the ACEM President, Ir. Prem Kumar.

Silver Award of MeritPerunding FAISAL, ABRAHAM dan AUGUSTIN sdn bhd City Square Johor Bahru, Addition and Alteration

Silver Award of MeritSepakat Setia Perunding (Sdn) BhdWhaft 8A at Northport, Port Klang, Selangor Darul Ehsan

Bronze Award of CommendationEDP Consulting Group Sdn Bhd & AD Consultants (M) Sdn BhdChilled Water Storage System at Lot 4U2 (Plot 12289), Phase 1, Precint 4, Putrajaya

The Minister of Works, YB Dato’ Sri Hj. Fadillah b Hj Yusof and the ACEM President, Ir. Prem Kumar presented the Awards to the winning member firms and their clients during the recent 52nd Anniversary Dinner held on 19 September 2015.

ACEM ENGINEERING AWARDS 2015

The intention of the client, Gas District Cooling (Putrajaya) Sdn Bhd (GDC) was to establish a plant to cater to the increasing cooling demand requirement of Core Island of Putrajaya by about 10,000 RT. GDC had the intention to build and conceptualised Phase 1 of Plant 4 as primarily a Thermal Energy Storage (TES) facility rather than an outright conventional Chilled Water (CHW) Plant with Chillers.

This is a collaborative effort between the Contractor, Suncon Construction Sdn Bhd and the design team comprising AD Consultants (M) Sdn Bhd (ADC) and EDP Consulting Group Sdn Bhd (EDP). ADC and EDP worked together to provide an alternative design bid to the Client GDC. It was based on the alternative designs that included the reengineering the Structural and Mechanical design that produce a winning bid.

ADC put together a TES Water Diffuser System that ensures efficient thermal stratification of the cold chilled water and the warm return water in the Thermal Energy Storage Tank. ADC’s challenge was to achieve guaranteed capacity with minimum capacity at optimum overall cost. ADC met the challenge by making the mathematics meet the reality.

Knowing that the pumps constitute the largest power consumption, ADC improved plant efficiency by careful equipment selection, matching them with pipe and system design. The end result was a plant that looked efficiently laid out, operationally efficient and coupled with a control system that gave operational stability and efficient energy consumption.

EDP’s challenge was to look at a tank design that would be cost effective and constructible for a tank size of that magnitude. Eventually, EDP proposed a post tensioned concrete tank (as opposed to a RC tank that was in the conforming design bid). The post tensioned concrete tank would firstly be effective in providing a degree of thermal insulation, thus reducing cost of insulation. In addition, the design of the post tensioning was to utilise the pre-compression provided by the tensioned cable hoops to resist the large hydrostatic forces imposed by the stored water. The tank size measure 33.7m high with an internal diameter of 45.5m. The design made the tank more constructible with a uniform wall thickness that allow for quick turnaround time for each cast of concrete. Steel reinforcement was significantly reduced and replaced with lesser quantities of 15.2 mm diameter ASTM A416 strands. From an engineering point of view, this is the arguably the largest post tension chilled water tank in the country. It demonstrated the effective use of post tensioning for large storage tank. From a sustainable point of view, there was less concrete use in this type of construction thereby reducing its carbon footprint.

The plant is significant in many ways mainly because of its size. It is possibly one of the biggest, if not the biggest Thermal Energy Chilled Water Storage Tank in the world. It is also significant in Engineering terms because it has been be conceptualised

AWARD OF COMMENDATIONEDP CONSULTING GROUP SDN BHD & AD CONSULTANTS (M) SDN BHD- District Cooling Plant at Lot 4U2 (Plot 12289), Phase 1, Precint 4, Putrajaya

Bronzeand designed very much jointly between the Structural and Mechanical Engineers, to optimise the design so as to achieve the cost that won the bid.

This project when completed is to provide chilled water for cooling in the Core Island of Putrajaya. It is an energy efficient system that in this world where climate change is of great concern, both nationally and globally, this engineering effort claims to meet that challenge.