Category Archives: Week 02

W2_HWB_Full Analytical Criteria Method


1. Problem Definition

At this second blog I’ll write about things that I had just experienced. The last few weeks, two of my kids had a prolonged cough illness despite after chek up to the doctor two times. After I observed, I concluded that maybe they are allergic to changes in air quality. Eventually I plan to buy an air purifier to be installed in the child’s room.

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Filed under Hari W, Week 02

W2.1_ANG_AC Product Selection


Problem Statement

In our day to day, there are bunch of product offered by the market and we have tendency to select a product based on its cost of acquisition only. For air conditioner product, some brands come out with power inverter technology that offer low power consumption with the same capacity, but of course due to its additional equipment and market demand, the price is higher than the one without power inverter. So what we have to choose? Choose the one with power inverter? Is the tag price too high? Or is the price quite justified by the low power consumption offered?

This product selection shall consider the total life cycle of the product (air conditioner).

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Filed under Anggono M, Week 02

W2_APE_Funeral Cost in Jakarta


  1. Problem Definition

We are not living forever in this world, this is true fact. Based on available survey data[1] for Indonesian, the lifetime age is around 65 years in average. For Jakarta, recently the availability of funeral land will be a constraint and the cost for having funeral is expensive. Like or not, we have to consider it in family plan otherwise we end up with problems.

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Filed under Arif P, Week 02

W2_ANG_Material Selection


Problem Statement

As part engineering department of an automobile radiator manufacturer, an engineer in conceptual design phase is required to select material that will be used for its commercial off-the-shelf product.

This material selection shall consider the total life cycle of the car.

Feasible Alternatives

The design engineer has alternatives of using either a brass-copper alloy casting or a plastic molding. Either material provides the same service. However, the brass-copper alloy casting weighs 25 pounds, compared with 20 pounds for plastic molding. Every pound of extra weight in the automobile has been assigned a penalty of $6 to account for increased fuel consumption during the life cycle of the car. The brass-copper alloy casting costs $3.35 per pound, whereas the plastic molding costs $7.40 per pound. Machining costs per casting are $6.00 for the brass-copper alloy.
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Filed under Anggono M, Week 02