c The plane beam, with ab straight and bc a quarter circle arch, as shown in Figure is subjected to the loading shown. Determine whether the composite beamarch is stable or unstable and calculate the bending moment as a function of the position along ab and along bcHeat Exchanger Design for the Air Handling Unit AHU

A commonality design can minimise the manufacturing and servicing cost of the system. Each of the

human comfort areas will be equipped with an AHU system. The AHU will use cold water to absorb

the heat of the fresh air. Assuming the fresh air enters at atmospheric pressure, propose a design for

a AHU unit by the following:

i Discuss the conceptual design of the AHU with a schematic diagram

ii Analyse the heat exchanging process between the cold water and fresh air in the cooling

tube.

iii. Develop the mathematical solutions for the heat exchanging process for the heat

exchanger\'s physical sizing and effectiveness using the NTU andor LMTD method. CO