Heat Pipe Working Mechanism Quiz

Having a vacuum between the layers of glass

Solar air conditioning, heating, or commercial process

Copper

<p>Structural integrity and heat insulation</p> Signup and view all the answers

<p>Heat pipe</p> Signup and view all the answers

<p>To absorb energy from the sun</p> Signup and view all the answers

<p>It consists of a double walled glass tube with a vacuum in between, sealed at one end.</p> Signup and view all the answers

<p>Heat trapped in the tube is transferred to a manifold, then water runs through the manifold and heats up.</p> Signup and view all the answers

<p>To transfer heat from the collector to the water circulating through the system.</p> Signup and view all the answers

<p>By creating a vacuum between the glass layers.</p> Signup and view all the answers

<p>To distribute the heat transfer fluid evenly to the absorber plate</p> Signup and view all the answers

<p>Manifold collects the heated fluid from individual collectors and transfers it for further use.</p> Signup and view all the answers

<p>Evacuated tube collectors have a vacuum-sealed tube design to enhance insulation and efficiency, while flat plate collectors have a simpler flat-panel design.</p> Signup and view all the answers

<p>Heat pipe collectors efficiently transfer heat from the absorber plate to the heat exchanger or working fluid.</p> Signup and view all the answers

<p>Solar air conditioning uses solar energy to power absorption chillers that provide cooling, often in conjunction with solar collectors for heat input.</p> Signup and view all the answers

<p>Heating ambient air in commercial, industrial, agriculture, and process applications</p> Signup and view all the answers

<p>Solar radiation heats the black panel, which heats the air in the collector. A solar electrical power blower pulls air through the collector and blows it back into the room.</p> Signup and view all the answers

<p>Space heating</p> Signup and view all the answers

<p>To distribute the heat transfer fluid to and from the collectors</p> Signup and view all the answers

<p>Evacuated tube collectors have a vacuum-sealed tube design, which provides better insulation and efficiency compared to flat-plate collectors.</p> Signup and view all the answers

<p>To collect heat by absorbing sunlight</p> Signup and view all the answers

<p>By using solar radiation to power the air conditioning system</p> Signup and view all the answers

<p>To transfer heat efficiently from the collector to the heat exchanger</p> Signup and view all the answers

<p>To connect the collectors to the heat exchanger</p> Signup and view all the answers

<p>Distribute the heat transfer fluid to the individual collectors</p> Signup and view all the answers

<ol> <li>Fluid evaporation by solar radiation 2. Vapor rises to meet a colder pipe with liquid flow 3. Vapor condenses, transferring latent heat to liquid 4. Condensed fluid runs back for the process to start again</li> </ol> Signup and view all the answers

<p>Made from low emissivity borosilicate glass with selective coating. Have vacuum between 2 glass layers for insulation and barium getter for vacuum indicator.</p> Signup and view all the answers

<p>Changes color from silver to white if the vacuum is compromised.</p> Signup and view all the answers

<p>Header material connects the collector tubes to the manifold, facilitating the flow of heat transfer fluid.</p> Signup and view all the answers

<p>Manifold distributes the heat transfer fluid from the collector tubes to the rest of the system, ensuring uniform heat distribution.</p> Signup and view all the answers

<p>The heat pipe carries heat by boiling a liquid at low temperature and transferring it to the heat of the system.</p> Signup and view all the answers

<p>Normal water pipe copper can leach out oxygen and other trace elements, forming air pockets in the heat pipe over time.</p> Signup and view all the answers

<p>The efficiency of a solar collector is the ratio of the collector power output to the incident solar radiation.</p> Signup and view all the answers

<p>The aperture area is the area of the collector that participates in energy conversion and is used to calculate the collector efficiency.</p> Signup and view all the answers

<p>The vacuum in the heat pipe allows the liquid to boil at low temperatures, facilitating efficient heat transfer.</p> Signup and view all the answers

<p>Evacuated tube collectors generally have higher efficiencies compared to flat plate collectors.</p> Signup and view all the answers

<p>Solar pump stations usually consist of a collector temperature sensor, solar collector panels, and a fill &amp; drain valve for system draining.</p> Signup and view all the answers

<p>Glycol solution helps in transferring heat from the heat pipe to the heat exchanger or solar tank.</p> Signup and view all the answers

<p>The material of the header should not allow oxygen and other elements to leach out, which can create air pockets in the heat pipe and reduce efficiency.</p> Signup and view all the answers

<p>The solar tank/heat exchanger stores the heat collected by the solar system and facilitates heat exchange processes.</p> Signup and view all the answers