Tuesday, March 4, 2014

Donahue - B8 - Summary Blog

Ryan Donahue
B8 – Summary Blog

            After completing a class, it is always valuable to look back and assess your personal growth, value and knowledge gained, and the positives and negatives. As AE510 draws to a close, I think it is appropriate to say that there is significant value in this class for each and every student to take away and build on. Summarizing the course, Professor Mitchell had us complete a wide range of assignments and discussions to stimulate rapid learning of intelligent buildings concepts such as BIM, databases, sensors, robotics, networks, etc.

            Like he said at the beginning of the course, this was definitely a class where “you get out of it what you put into it.” The assignments that hold to that motto truest were the blog posts. They were meant to encourage and fuel discussions amongst students to obtain and build a well-rounded knowledge base on the various topics that were explored. They were a great way to see what other people thought or found on the various topics and draw your own conclusions from this information. They were also valuable because it was a chance to explore and take note of the growth of technology and to identify trends and future aspirations of technology. These blog assignments were weekly, lengthy, and time-consuming, however, the value students were able to obtain from them is pretty clear.

            Another aspect of the class that I really enjoyed were the guest speakers from various companies coming in to discuss their real world applications and technologies. This was a great way to use our research from the blog posts as call-backs and to again increase our knowledge base by participating in first hand discussions with present day professionals who utilize IB concepts daily. I really enjoyed those lectures and I truly believe they brought immense value in the form of exposure for the students.

            Reflecting on how this course and its concepts effect my profession and future is quite simple. I think I made a point of making sure I brought in my personal experiences into almost every blog post along with performing the usual deliverable tasks and research. Being able to identify how it has already or will affect myself and my profession in the future is something that is important to identify for any class. Specific to this class, however, is being exposed and discussing the technological advancements that are presently changing the profession, most especially BIM tools. BIM software is changing the game and it is imperative for us as young engineers to graduate with a well-rounded skill set and a wealth of experience in utilizing these tools proficiently. Because clearly, after the learning curve, they make engineering design, analysis and collaboration easier and the accuracy and interfaces are improving significantly as times goes on. And again, this is something that was achieved through class lectures and discussions as well as the guest lecturers coming in and providing the real world application examples.


            Overall, I truly enjoyed the course and it was an extremely valuable experience. I look forward to building on the knowledge I have gained from this course as well as utilizing the skill set gained from the various projects. Thanks for a great term everyone!

Comments on Others:
Teddy's Post:
Great job on your post, I want to first comment by saying I'd like to echo your comments about Professor Mitchell. All of his courses are always geared to making sure students learn a wide range about the topic at hand and he achieves this by using recent, up to date technologies which add to the learning experience themselves. The way you described it in your post was very well put and absolutely true. I'd also like to say I agree with you when you said you'd rather have spent more time on certain topics instead of others. I think I feel the same way, but as you also said, that is just a personal preference thing that will vary from student to student.

Esther's Post:
I really liked your reflection post because you summarized all your goals for the course and precisely what skills you were able to acquire and/or build upon, especially BIM. I think the BIM experience is so valuable because it is the next generation design tool and we are the next generation of engineers so we definitely should have a familiarity with how it operates. Great post, Esther!

GROUP A - Notorious BIM

https://docs.google.com/file/d/0ByXRuwuLOsCoQTZFMFBjRlhsbWs/edit

Group D - The life of a hospital

https://docs.google.com/presentation/d/1H6cDtJLDjv2WrioTlOJR6MmbKKEtKkp-70qVCjDsFA4/edit?usp=sharing

Group E, story

https://docs.google.com/presentation/d/1bM16W5PRTss__HtmSMaivjdnLkxhzkPDv9CQkQ-1Rco/edit#slide=id.p

Group C Week 9 Story

https://docs.google.com/presentation/d/1IBILgDY4R7tOfFhCS8aYk6kRZl7P2ECSyqFcWSKsJzE/edit#slide=id.p

Group B Week 9 Story

Link: Click here

Friday, February 21, 2014

Week 7 - Temperature Sensors

Temperature sensors are extremely important in modern life. Chemical engineering, modern medicine, and many other fields demand that the exact temperature be measured constantly. These sensors have to be extremely precise in order to maintain effectiveness. Specifically relating to BIM, temperature sensors are utilized to maintain a level of desired temperature for the inhabitants while also making the building energy and cost effectiveness. Temperature sensors have been a household item since the development of the mercury thermometer. These thermometers, or filled system thermometers, are filled with a liquid material with a high thermal expansion rate. This material then expands with the increase of molecule movement, or increase in heat. This sensor is ultimately reading and reacting to the increase or decrease in molecular movement, which controls how the liquid expands or contracts. (Middleton 1966)

The most commonly used temperature sensor today would be thermocouples. These types of sensors monitor temperature using electricity, like many modern sensors. This sensor is comprised of two different conductors in long, tube-like fashion. These conductors are placed a different temperatures, one location being the reference temperature, and the next being the location in which the temperature is trying to be measured. The differences in temperature between the reference point and point of interest produces a voltage which is then analyzed by a computing system to then provide the temperature at a certain point. These systems are inexpensive and require no external power, much like a filled system thermometer, which makes them highly popular. However, thermocouples are not extremely accurate and should not be used when extreme accuracy and precision is required. (Babadi 2011)

A pyrometer is another type of temperature sensor which utilizes a different approach from both thermometers and thermocouples. Radiation pyrometers measures the radiation of a given light, either visible or infrared, and then this this radiation heats an internal thermocouple to create a voltage. These types of sensors are used in non-contact situations.  (Stein 1994)

Temperature sensors are invaluable to BIM, as well as many other fields. Creating comfortable and cost-effective buildings require that the temperature be monitored and maintained at all times. These devices are not as simple as many people think however. And in order to utilizes them properly, one must understand what these sensors are actually doing.

References

Babadi, S. (2011, April). Sensors and their Applications. In 10 th Research Seminar Series Workshop.

Middleton, W. E. K. (1966). A history of the thermometer and its use in meteorology (p. v). Baltimore, Md.: Johns Hopkins Press.

Stein, A. (1994). U.S. Patent No. 5,308,161. Washington, DC: U.S. Patent and Trademark Office.

Comments

Melanie- Great post outlining the current state and limitations of motion sensors. I am curious how much these will actually advance. Do you believe that motion sensors could be improved enough to be utilized for other systems? I agree that the lighting system is one of the few systems in which motion detectors are effective and not annoying. Even then, motion sensors can become aggravating if the lights keep turning off.


Nameta- I really enjoyed that you brought attention to the fact the humidity is just as important as temperature in terms of indoor air quality. These types of sensors are very important to maintain a healthy indoor space as well as a comfortable one. BIM aims to create the most effective building and being able to monitor the humidity is extremely important.