Intro to EWB:
The EWB challenge is devoted improving lives, “Welcome to Engineers Without Borders (EWB) Australia. We 're here to engineer a better world, (Engineers Without Borders Australia, 2016).” The challenge they set before themselves is to allow everyone to lead a life without poverty through engineering knowledge and resources. “We connect, educate and empower people through humanitarian engineering. Humanitarian engineering uses a people centered, strength based approach to improve community health, well being and opportunity, (About Us - Engineers Without Borders Australia, 2016).” They place value on the construction of relationships based on mutual trust and respect and thrive on the sharing of knowledge and culture from both parties.
The challenge taken on by the EWB in Zambia with the assistance of the UNHCR, (the United Nations refugee agency) is focused on the Mayukwayukwa refugee settlement in the Kaoma District of Zambia’s Western Province. “The settlement is home to over 11,000 refugees, the majority (over 6,000) of whom have fled the war of liberation in Angola. Other refugees in the settlement come from the Democratic Republic of Congo, Burundi and Rwanda. (UNHCR Zambia | EWB Challenge, 2016).” Thus the EWB has taken the challenge of developing engineering and technological solutions to assist the integration and creation of sustainable livelihoods of the refugees due to pledges by the Government of the Republic of Zambia in 2011 and 2013 allowing the…
1.1 What is a heat engine?
In thermodynamics, a heat engine is a device/system that uses heat to do work, i.e. it converts heat or thermal energy to mechanical energy.
1.2 How does a heat engine work and its operating principles?
For a heat engine to work, it must operate in cycles.
Firstly, heat is added into the system. Let the heat added into the system be represented by [Qh].
After that process, some of the energy that were added into the system will be used to do work e.g the…
Description of the proposed heat release rate model.
The cylinder gas is considered as a spatially homogeneous thermodynamic system occupying in a single zone for the compression, expansion, intake, exhaust processes and two zones (burned and unburned zone) for the combustion process. The instantaneous composition of cylinder gases are obtained from the mass fraction of fuel burned. The instantaneous thermodynamic properties are computed by the established equations [20-21, 28]. The…
object; kinetic energy is the rate at which molecules or particles move. When particles of any matter (solids, liquids, gases or elementary plasmas) move faster, they carry more kinetic energy and feel warmer than a material with slower particles.
Boiling is the process where molecules transition from the liquid phase to the gas phase, resulting in the formation of vapour bubbles within the liquid (Figure 1).
Figure 1 – Liquid changing to a gas.
Boiling point is the…
decreased liquid vaporizes. There are circumstances where both liquid and gas can coexist in equilibrium, these values lie on the vapor-pressure line on a phase diagram. A phase diagram is shown below in Figure 2.
There are a few other key terms one should know when discussing phase behavior; Critical pressure is the pressure that above it liquid and gas cannot both exist. Also the Critical Temperature is the point at which gas can no longer be condensed to liquid.
Giovanni Delgado 4/29/12
FLT 443 Prof. Proscia
In the aviaiton industry weather is one of the most important subjects. When the weather changes, there are changes in the conditions of a flight as well. Since weather changes so often, every flight is different. Changes in weather can happen during flights as well as between them. Both dispatchers and pilots have to be ready to deal with various changes in weather conditions and…
Exploring a Childhood Concept - Thunderstorms
What scares you? Concepts formed as a child often change as he or she grow into an adult; perhaps the ideas around magic or fairies. Other concepts such as fears are common, but can turn into debilitating fears or even phobias. Treatment for debilitating fears could improve children 's overall mental health, if left untreated they could lead to other disorders, such as anxiety and depression (Dingfelder, 2005). .In this paper, we will explore the…
Hurricanes are benefitting from the effects of climate change.
Humans should be concerned about how climate change intensifies natural disasters, more specifically hurricanes, for it affects our lives and the environment. Places susceptible to hurricanes, such as the Gulf of Mexico and Eastern Pacific Ocean, will be hit by more intense storms in the future if we are not mindful of how to slow down climate change.
Hurricanes are formed when the moist air from the surface of oceans rise and…
Blocking highs are strong high-pressure systems that form further south of Australia than normal and remain almost motionless for a long amount of time. Blocking highs mostly affect southern Australia, they can take place during any time of the year and can last from several days - several weeks. Blocking highs can impact Australia in numerous ways depending on where they occur and how strong they are, they are able to produce hot and cold spells as well as wet conditions and dry…
will help any progress in the science . Denying that there is any ambiguity would not serve the scientist’s purpose as a scientist, though maybe it would as a politician.
We cannot say that we know what the future holds for us. We have reasons to be uncertain, and reasons to examine these potential threats that exist on the horizon. But most of all, it is important to undertake this scientific endeavor in the name of science, welcoming doubt and distrust as a extremely important tool in the…