Question $1$

Engineers have a unique role to play in the Path Forward to a sustainable future. This is because they have a direct effect on the design and development of

products, processes, and systems; as well as on natural systems through material selection, project sitting, and the end$-$of$-$life management of chemicals,

materials, and products.

You are the project development manager for a high$-$tech property development company. Your company prides itself as being an environmentally conscious

company. Your company is the first to build $3$D printed houses in a new residential area on the outskirts of town. Your current $3$D printing machines use

concrete $($cement $($limestone & clay$),$ water, sand and rocks$)$ which has to be mixed on$-$site $($resulting in dust$/$noise etc.$).$ Furthermore, these machines use

hydraulic oil and water when they operate. You also have diesel generators to power these $3$D printing machines. You have trucks coming and going

$($generating dust$)$ to the building site bring the raw materials for the $3$D printing machine. On one corner of the site $($muddy$)$ you have a water tanker supplying

water for the concrete mix. The housing minister is set to visit your site and production to showcase its $$greenness$.$

You are to present the current environmental challenges and to apply the $12$ Green Engineering principles to develop a better solution that articulates the

benefits and impacts of the solution over the lifetime of the property design process using these printers to the minister.

Marking rubric

Level of performance

$(1)=$ Fail $(<50\%)(2)=$ Pass $(50\%-74\%)(3)=$ Excellent $(>75\%)$

$$ The environmental challenge is not appropriate nor relevant

and not clearly described

$$ Green engineering principles are not articulated to develop

sustainable solution to the environmental challenge at hand

$$ Benefits and impacts of the solution over lifetime of the

design are not articulated

$$ The environmental challenge is described but articulation

could be improved. The environmental challenge is

relevant.

$$ Green engineering principles are articulated to a

satisfactory level to develop a sustainable solution

$$ Benefits and impacts of the solution over lifetime of the

design are articulated but can be improved

$$ The environmental challenge is clearly articulated, and it is

highly appropriate and relevant.

$$ Green engineering principles are articulated in depth to

develop a sustainable solution

$$ Benefits and impacts of the solution over lifetime