Porsche Centre Sungai Besi, Kuala Lumpur, Malaysia
As an effort to improve the thermal comfort in the workshop, an independent environmental study was commissioned by Sime Darby Auto Performance. The study revealed that the daytime temperature in occupied areas of the workshop routinely exceeds 32°C, and the 650 square meters’ workshop in the Porsche Centre Sg Besi is under-ventilated. High radiant temperature of the workshop’s surroundings (roads, roofs and dark cladding of the building) ruled out the use of a mechanical ventilation to maintain a reasonable working condition.
The study recommended to adopt measures to improve the thermal comfort, which included increasing the air velocity with big ceiling fans, installation of additional louvers, and also air conditioning the workshop. The option of Air Conditioning was excluded due to the high initial investment and high running costs.
Solution: Climate Wizard indirect evaporative cooling system – stand alone / spot cooling
Although an indirect evaporative cooling system of this type had never been installed in Malaysia, the management decided to install this innovative cooling concept. IETCO Sdn Bhd, a product specialist company focusing on energy saving solutions, and official distributors of Seeley International products in Malaysia, evaluated a possible installation, with the cooperation of Mauro Ercoli, Seeley International Sales Manager responsible for the area. After a few surveys, the experts calculated that an Indirect Evaporative Cooling System based on a counterflow heat exchanger (like Climate Wizard) would grant an estimated supply air temperature of 25-26°c into the workshop. They evaluated the need of 5 Climate Wizard H15S (Supercool Series), in order to obtain this result.
Convinced of the efficiency of the system, the Management commissioned the project to IETCO Sdn Bhd, provided that the system would have result in an ambient temperature in the workshop of 28 ± 1°C. IETCO Sdn Bhd worked on integrating the ductwork for the new cooling system into customized workstations of the workshop. The target was to keep the changes to minimum and integrate the system as much as possible. During the first trial after the installation, starting from an outside temperature of 35°c and 49% RH, the five Climate Wizard installed provided a supply air temperature of 23.5°c, which is well below the temperature targeted by the client. Commissioning was made on 20th February 2017 together with Seeley International Engineer, Johan Velleman.