Warning: mysql_query() [function.mysql-query]: Unable to save result set in D:\wwwroot\57mumu.com\includes\db.inc.php on line 67
Database error: Invalid SQL: select * from pwn_comment where pid='179043' and iffb='1' order by id limit 0,10
MySQL Error: 1194 (Table 'pwn_comment' is marked as crashed and should be repaired)
#0 dbbase_sql->halt(Invalid SQL: select * from pwn_comment where pid='179043' and iffb='1' order by id limit 0,10) called at [D:\wwwroot\57mumu.com\includes\db.inc.php:73] #1 dbbase_sql->query(select * from {P}_comment where pid='179043' and iffb='1' order by id limit 0,10) called at [D:\wwwroot\57mumu.com\comment\module\CommentContent.php:167] #2 CommentContent() called at [D:\wwwroot\57mumu.com\includes\common.inc.php:518] #3 printpage() called at [D:\wwwroot\57mumu.com\comment\html\index.php:13]
Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in D:\wwwroot\57mumu.com\includes\db.inc.php on line 80
 客户点评-Solar Scorching Water Techniques2022年世界杯_举办国家卡塔尔
 
 
点评详情
发布于:2020-3-13 19:43:37  访问:421 次 回复:0 篇
版主管理 | 推荐 | 删除 | 删除并扣分
Solar Scorching Water Techniques
Too much sediment might wreck the tank to More about the author point where it should be changed. For this reason, natural properly water have to be examined and handled for any contaminants or extreme mineral content material. The recent water tank must be located increased than the photo voltaic collector, in order that pure convection will ship the heated water from the collector to the tank. A flat plate collector is often used for such techniques. Copper piping is added in an S-shape between the absorber plate and translucent cover. As a substitute, a solution of water and propylene glycol (usually within the ratio of 1:1) is circulated in closed loop piping. In this system, the water is directly circulated within the collector to heat and is then returned to the tank when heating is completed. When the water supply in the tank anyhow stops, the circulating answer begins receiving heat from the collector time and again. That develops two problems; the glycol turns into extra acidic at excessive temperature, and the solution begins boiling as a consequence of high temperature.
Simple Steps To A ten Minute Water System
The thermostat factor is a differential temperature controller that controls the circulator and maintains the temperature of hot water. The circulator makes use of a pump that sends the heat switch fluid from tank to collector. On account of this, the heat transfer fluid starts shifting and the procedure of heating water starts again. A heat exchanger can also be used in this system to transfer heat from working fluid to the water present within the tank. This copper piping carries a heat exchanger (fluid). Pure convection refers to the natural upward motion of heated fluid as a consequence of its decrease in density. Propylene glycol is an antifreeze agent; because of this there isn`t any chance of freezing of answer contained in the closed loop. You don’t want to use any antifreeze with the water that makes its upkeep cost decrease. Passive photo voltaic water heaters use natural convection to drive the flow of heated water from the photo voltaic collector to the new water tank, as shown in the figure at the left.
Subsequently, it solely needs small pump, tank, and small area to install. Due to this fact, the water isn`t circulated for further heating, and remains inside the tank. The scale of closed system is comparatively small; therefore, they`re utilized in massive industrial and industrial purposes. The dimensions of the tank utilized in drain again system is significantly larger than that used closed loop system. There are two types of solar drain again systems; a drain-back system and closed loop system. This component has completely different structures for drain-back photo voltaic systems and closed loop photo voltaic systems. In homes with well and septic methods the salt run off could end in the ground water after which again in the well. Nonetheless, if excessive temperature water is required then a closed loop system must be used. When the temperature of the tank is decrease than the collector it senses the state of affairs and turns the circulator on.
In closed loop system, a closed loop piping is used between the collector and the tank, wherein the mixture of water and glycol is circulated. A tank, called an enlargement tank, is put in in a tee in the road. Any such system, sometimes called a thermosyphon solar heating system, is simple, because there aren`t any pumps required. This system is also known as an open loop system. You won’t face the freezing issues on this system. These issues overpressurize the fluid, which is very dangerous. A water softening system can reduce or even get rid of these problems. We hope this article has helped define a few of your options, has explained a few of the systems that can be found and what may very well be implemented in your Solar Thermal system. There are several varieties of selections for solar scorching water techniques. The parts of both kinds of solar sizzling water system are the same.
共0篇回复 每页10篇 页次:1/1
共0篇回复 每页10篇 页次:1/1
我要回复
回复内容
验 证 码
看不清?更换一张
匿名发表 
当前位置
脚注信息
版权所有 Copyright(C)2009-2010 2022年世界杯_举办国家卡塔尔