heat (48)

Swimming pool heat pump absorb heat from the air, and then use a small amount of electricity to drive the compressor to air heat used to heat water. Swimming pool heat pump has many advantages, such as energy conservation, environmental protection, take up less space. It is suitable for various swim pools.

But it is not perfect, swimming pool heat pump also has some disadvantages.

There are two main disadvantages of swimming pool heaters. It is easy to frost in cold area winter and reduce heating rate and efficiency. The second is the swimming pool heaters operation, machine start-up, shutdown, if the frequency can reduce the service life of heat pump.

Finally, expert proposal, to solve these two problems, suggest to buy a full-inverter swimming pool heat pump. Aquark's Mr. Silence series swimming pool heat pump, for example, is the perfect solution to the problem.

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She worked for 15 years as a commercial artist in Gulfport, Miss.
The terra cotta colored porcelain tile floor has the look of old leather with small colorful clay tiles with religious symbols on them inserted into the tiles.
She also had to sell her idea to the church's congregation. Today, a flag flies above the site of the church.
A year ago she decided it was time to relocate, so she headed west.
"It unifies everything in the chapel beautifully," Moline said."I knew it would be beautiful, but this is far more attractive than I imagined," the Rev.
"I feel with the tile floor and religious symbol tiles in the chapel has an old world look, which is what I wanted," Laird said., Laird holds a bachelor of fine arts degree in commercial art from the University of Southern Mississippi.
When Laird re-entered the workplace, she got into pottery and making mosaic tiles in Gulfport.
., before taking time off to raise her son, Hunter.
"I use a lot of symbols and animals in my work so when I saw how bad the floor was I saw a chance to give back to my church," she said.
In February and March, Laird met with the church's board of directors to get its approval. Peter's.
"It was a very educational experience. Heat Sink Manufacturer She ended up in Prescott Valley, where friends of her mother live.
"I tried to mimic the colors in the stained glass windows in the chapel," she said. Mark Moline said Thursday about St. "This is one of the few things that came out exactly like I wanted it to. Luke's Episcopal Church's Paul Crowell Chapel's new floor. I learned a lot I didn't know about the apostles and my church," she said
Once the research was done, Laird designed 16 small tiles.
Once she received the green light, Laird researched what symbols represent each of the 12 disciples and other symbols the church uses.
It was the brainchild of Linda Laird, a professional commercial artist and potter who survived Hurricane Katrina while living in Gulfport, Miss.
A native of Baton Rouge, La.
She designed 10 tiles to spell out the life of Jesus and the four evangelists who taught the world about Christ's life across the front of the step to the chapel's sanctuary. She relocated to Prescott Valley a year ago. These tiles include one for each of the 12 disciples, and one for Judas, Mary, eternity and the nine gifts of the spirit. One is at the end of each row of seats.
She is back making decorative pottery, tile and mosaics.
She then spent a year rebuilding her father's house and her own.
"Many times my mosaic was all that was left standing in their houses," she said.
On the front of the next step in the sanctuary she designed two tiles for unity and faith.
Katrina destroyed all five Episcopal churches in Gulfport, including the one she attended - St.
Laird designed tiles with the symbol of trinity, Holy Eucharist and Lamb of God for the front of the step at the base of the altar."
She hopes the church will use the tiles to educate children, as each one tells a story.
"I make mosaics in houses in addition to doing pottery," she said. Laird said Gulfport residents also hired her to go into what was left of their houses and save their mosaic and make it into a coffee table.

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Heat transfer fluids play a crucial role in making chemical fiber and polyester products. Processes such as polymerization, melting, extension and drying during synthesizing PET, PU, PA6 and PA all require high temperatures. Except for providing stable and accurate heat, fluids used in these processes shall also meet the strict safety demands.




SCHULTZ® S760 completely satisfies the strict demand of polyester and chemical fiber processing based on its remarkable thermal stability.




SCHULTZ® S750 is the first choice for a lot of chemical fiber and polyester manufacturers as their systems usually require operation temperature above 300℃.



The melt spinning and drying processes in chemical fiber production require accurate temperature control. SCHULTZ® S740 can be use in gas phase system and provide accurate and well-distributed temperature supply to system.


SCHULTZ® S720 is widely used in polymerization, extension and drying process in chemical fiber and polyester manufacture.



SCHULTZ® S715 satisfies the high demand of temperature control accuracy of chemical fiber and polyester manufacture for providing constant, stable and accurate heat.





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Thermal cracking occurs inevitably when heat transfer fluid is heated in system. Oxidation happens when fluid contacts with air. These reactions will change the fluid structure and generate high and low molecular substances called low boilers. Accumulation of low boilers adversely affects the system safety and causes potential risk.

There is an exponential relationship between fluid temperature and thermal cracking rate. Fluid thermal cracking rate doubles when its temperature rises 10℃ each time. Factors influence fluid thermal cracking rate are fluid chemical structure, purity, operation temperature and system heating conditions including temperature distribution and system impurities. Fluid starts to thermal crack when its operation temperature is 50℃ below the allowable maximum operation temperature. Poor quality fluid, over-temperature operation, oxidation and contamination accelerate fluid thermal cracking and oxidation decomposition, leading to deteriorated substances accumulation and speeding up fluid degradation.


Initial boiling point of low boilers is lower than the boiling point of fresh fluid. Low boilers are in gaseous state in system, which increases system pressure fluctuation. More low boilers cause higher fluid vapor pressure and bigger pressure fluctuation, leading to system circulation pump cavitation and heat transfer process deterioration which aggravates low boilers formation. Fluid flash point obviously decreases when it’s full with low boilers, triggering the risk of fire hazard and explosion under inappropriate measures.


Periodic system exhaust helps decrease low boiler contents, control fluid degradation rate and extends fluid service life, guaranteeing system stable operation in long term. Experts from Schultz fluid suggest to exhaust system when the content of low boilers in fluid exceeds 5%.


It is necessary to take protective measures in heat transfer fluid operation avoiding fluid degradation acceleration. Keep fluid away from contacting with water and acid base materials before filling into system. Processes of dehydration, light component removal and other operations should be taken before system first startup. System operator shall strictly comply withthe operation instruction and avoid overheating. It is suggested to sample in-used fluid semiannually to analyze fluid performance in time.

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