A company is provided with a choice of 2 kinds of air-conditioners of comparable capability of 12,500 kcal/hr. The standard air-conditioner prices round HK$50,000 with EER of 2.16 kcal/h W and is estimated to make use of 140 kWh of electrical energy day by day on the common. A new kind of air-conditioner using evaporative cooling for the condenser having EER of four.66 kcal/h W is estimated to make use of solely 75 kWh of electrical energy on a regular basis however with further of 750 liters of water day by day on the common. Assume each air-conditioners would have a helpful life of 10 years and with comparable value of upkeep and salvage worth. Think about in Hong Kong, the associated fee of electrical energy is HK$1.21/kWh and water prices HK$four.58/m3, calculate the breakeven value of the above air-conditioner with condenser utilizing evaporative cooling if the MARR is eight% p.a.

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