{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

HANDOUT 11 - UNDERGRADUATE COOPERATION PROGRAM Subject code...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
UNDERGRADUATE COOPERATION PROGRAM HANDOUT 11 Subject code: ENGL 1301 PATTERNS OF ESSAYS Subject name: Composition 1 Instructor: Tô Minh Thanh, Ph.D. PROCESS 11. 1 Describing  a technical process Essay 1 : How a Solar Hot Water System Works A solar hot water system collects and converts solar radiation into usable energy for the pupose of heating water . The use of solar radiation for heating water is an expensive and environmentally responsible substitute for heating by gas or electricity . The main parts of a solar hot water system are a collector , a hot water storage tank , and a distribution system . The main steps  in       the process       of     heating water     by       using the sun’s rays     ( Topic ) are (1) trapping the sun’s energy , (2) heating and storing the hot water , and (3) dispensing the water at points of use . The first step is to capture solar radiation (A) . That is, the sun’s energy must be assorted by a solar heat collector , which is usually built on a south-facing roof . The collector has several layers of material . It has a glass plate and a mental absorber plate , which is painted black to increase its ability to absorb heat . Next to the absorber plate are copper tubes , which are filled with transfer fluid . The tubes are surrounded by foam insulation and aluminum casing to help hold the heat in them . The  process  of trapping the sun’s radiation is as follows . As the sun shines through the glass plate , its thermal energy absorbed by the copper absorber plate . This heat is conducted from the plate to the tubes . The heat from the tubes is then conducted to the fluid flowing through them . After trapping heat from the sun , the second step is to transfer the heat to water which is stored in an insulated tank (B) . The hot fluid from the collector is circulated by a pump through copper coils inside the tank . The heat is conducted by the coils to the water . When the supply of solar radiation is reduced on cloudy days , an auxiliary system can take over . Dispensing the hot water is the final step in  the process . The water flows from the outlet valve through pipes to faucets throughout the house (C) . In summary , the process   of   collecting   and converting   solar energy   for use in a solar hot water system involves three steps   ( Restated Topic ) . First , collectors absorb the sun’s energy, which is then transferred to fluid in copper tubes . These tubes run 1
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
from the collector to a tank , where the water is heated and stored . Finally , the hot water is disturbed through pipes to wherever it is needed . Although initially expensive to install , solar heating systems are economical in the long run — at least until utility companies figure out how to charge us for sunrise !
Image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern