Question

In: Physics

Question about a thermoelectric cooler (TEC) Why is it expected that one side has a greater...

Question about a thermoelectric cooler (TEC)

Why is it expected that one side has a greater difference from room temperature to the other?

In my experiment, there was a larger difference between the room and the cold block

Thanks

Solutions

Expert Solution

Basically thermoelectric coolers operate according to the peltier effect. And as the effect says it will create a temperature difference by transferring heat between two electrical Junction. Here Due to the applied voltage , current flows through the Junction of of the two conductors, heat is removed at one Junction side and cooling occurs and heat is deposited at other Junction.

Now as we do this experiment in the room then, the two block of the thermoelectric cooler will create a hot and cold side and when we take a single stage thermoelectric cooler in our experiment then it would produce q maximum temperature difference of about 70° C which is comparably large to feel in a room so that, when we do this experiment we will feel the temperature difference pf about 70° C in between the room temperature and the cold block side.

Here when current passes through one or more pair of n to p type , then decrease in temperature at Junction feels which result in absorption of heat from the environment at the hot block side this heat is carried along the elements by electron transport and released on the opposite side as the electron move from high to low energy state.


Related Solutions

In a study, researchers considered the question of whether one side of the brain might be...
In a study, researchers considered the question of whether one side of the brain might be better attuned to identifying similar objects, while the other side of the brain might do better at distinguishing when objects are different. . The mean reaction times (msec) for the subjects to reach their conclusions about six sets of differently oriented parallel lines (i.e., same lines) in the left visual field (LVF) and the same six sets of parallel lines in the right visual...
(Side note: I'm not sure if this counts as one question or not but all questions...
(Side note: I'm not sure if this counts as one question or not but all questions are based on the original case and numbers and felt as splitting the questions would be counter-productive) Case: A small convenience store chain is interested in modeling the weekly sales of a store, y, as a function of the weekly traffic flow on the street where the store is located. The table below contains data collected from 20 stores in the chain. Store Traffic...
This question came about from a side discussion that arose on this: Does GR provide a...
This question came about from a side discussion that arose on this: Does GR provide a maximum electric field limit? Can we change our choice of coordinate system completely independent of physical motion, and still refer to coordinate dependent components as observations? For example if we have an inertial coordinate system in which we measure the electric field to be E, and now I want to boost the coordinate system to a different inertial coordinate system and state what the...
Write a one-page paper about the stock market. The good and bad side of it.
Write a one-page paper about the stock market. The good and bad side of it.
One question that I've thought about recently has to do with clouds. We've learned about the...
One question that I've thought about recently has to do with clouds. We've learned about the formation of clouds but haven't really gotten that much deeper in the topic. I remember reading an article a while ago about bacteria existing in clouds but I wan't to completely sure on the accuracy of the source so my question then is, can living organisms exist in clouds? If operating under the idea that yes, specific organisms can in fact exist inside clouds,...
Ed's Tires and Brakes has two locations, one on the northwest side of town and one...
Ed's Tires and Brakes has two locations, one on the northwest side of town and one on the southeast side of town. At both locations are performed routine tire repairs and rotations, as well as expensive brake repairs. This past week, 60% of the cars serviced at Ed's were serviced at the northwest location, while 40% of the cars were serviced at the southeast location. (No car was serviced at both locations.) Brake repairs were more typical at the northwest...
Provide one example of a demand-side policy and explain why and how it causes the aggregate...
Provide one example of a demand-side policy and explain why and how it causes the aggregate demand to shift. Similarly, for the supply side, you need to explain one of the reasons why some may prefer to use supply-side policies. Provide one example of a supply-side policy and explain why and how it causes the aggregate supply to shift.
3. Explain why one side of the single magnet attracted the metal surface, but repelled the...
3. Explain why one side of the single magnet attracted the metal surface, but repelled the stack of magnets. 4. What orientation of the magnets gives the strongest repulsion or attraction? Why do you think that is the case? What must be true of the magnetic field at those locations compared to other locations around the magnet? 5. If you cut a bar magnet in half, are the two halves still magnets? Explain your reasoning .6. How does the magnet...
Think about this medical scenario and answer why physicians may disregard this common side effect of...
Think about this medical scenario and answer why physicians may disregard this common side effect of ototoxic medications. A common side effect of antineoplastic, chemotherapeutic treatment for cancer is ototoxicity, development of sensorineural hearing loss, and tinnitus. Why do oncologists (physicians who treat cancer) sometimes disregard these side effects?
what material has greater creep resistance and why? metal plastic or ceramic?
what material has greater creep resistance and why? metal plastic or ceramic?
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT