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What should I do if the air source heat pump unit is frosted in winter?
2018-12-11
What should I do if the air source heat pump unit is frosted in winter? How to quickly defrosting it ? Every heating season, there is always frosting problem, because once the frost can not be timely defrosted, the heating effect will be affected, and it might break down the system . However, there is no product that does not frost, and whether it is possible to defrost in time is the key. If the ...
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How to descale the water-cooled condenser
2024-04-11
How does the chiller descale the water-cooled condenser? Many refrigeration units adpot water-cooled cooling system. The inner wall of the water-cooled condenser is easy to scale. These scales will affect the heat exchange effect, resulting in an increase the condensing temperature, which will badly lower cooling capacity and increased unit power consumption. Water-cooled condensers should be regu...
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Dry Type and Flooded Type evaporator structure, principle, difference and advantages and disadvantages
2023-06-12
As we all know, the four major components of the refrigeration system are: compressor, evaporator, condenser, and throttling device. Among them, the type and characteristics of the compressor as the heart of the refrigeration system are more well known than the other three components. In addition, the evaporator is another key component. Do you know about the type and characteristics of the evapor...
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How dose sewage source heat pump works?
2019-04-16
Using domestic sewage? We are saving your MONEY! Sewage source heat pump is one of the most promising heat pump technologies in the world.It is estimated that by 2020, the new residential heating demand area in seven major provinces and cities in north China will exceed 400 million square meters.At present, the area of central heating (non-clean energy) in north China is 5.13 billion square meters...
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The difference between square type crossflow closed circuit cooling tower and traditional open cooling tower
2019-05-08
H.Stars Group water cooled chiller unit always need to adopt cooling tower to supply water to the cooling system . Hence, H.Stars has summarizes the difference between square type cross flow closed circuit cooling tower and traditional open cooling tower. The cooling water of the open cooling tower is directly contact with the air for heat exchange in the packing process, so the purity of the...
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Square Type Contra-flow closed Circuit Cooling Tower Working Principle
2019-05-14
Regarding to water cooled chiller working system, normally it needs to adopt water cooled chiller, cooling tower, water pump or tank etc. To familiar with H.Stars Group water cooled chiller system, here we are introducing you the working principle of square type contra-flow closed circuit cooling towers first. The working fluid (water, oil or other liquid) flows in the coil clock, ...
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What should you pay attention in the Design and Construction of 5000RT cold room
2019-09-12
The 5000RT cold room generally equipped with various refrigeration equipment, which can be controlled and maintained stable low temperature facilities. Its basic components are: refrigeration system, warehouse with certain thermal insulation performance, attribute buildings, etc. H.Stars Group has been committed to providing customers with complete low temperature condensing c...
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The Difference between sewage source heat pump and air source heat pump
2020-01-16
The heat pump is based on the reverse Carnot cycle principle. It doesn’t cost many electricity by refrigerant system. Using refrigerant as carrier to continuously absorb the free low-grade heat energy in the heat source and convert it into high-grade heat energy, thus realizing the transfer of low-temperature heat energy to high-temperature heat energy. According to the different heat source ,H.St...
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H.Stars Group has launched the first batch of catalogs with 9 different types
2020-03-25
H.Stars Group has launched the first batch of catalogs with 9 different types. For more details or soft copy of our catalogs, welcome to contact us sales@hstars.com.cn . After launching the first batch of 9 new catalogs, H.Stars Group has been informed by clients overseas that they start to understand our products more. The first batch of catalogs is mainly for medium and large centrifugal and scr...
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Application of double source heat pump unit in automobile painting workshop
2020-07-16
Automobile production and manufacturing process includes stamping, welding, coating and general assembly. According to relevant statistics, coating workshop involves heating, cooling, power, communication control, lighting, etc. energy consumption accounts for a large proportion in the whole manufacturing process (stamping, welding, coating, etc.), accounting for more than 70% of the cost. The gen...
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The Role and Characteristics of Condenser in Refrigeration System
2020-11-16
The four major components of the refrigeration system are compressor, evaporator, condenser and throttling device. The role of the condenser in the refrigeration system is mainly to cool and liquefy the gaseous refrigerant in the high temperature and high pressure state discharged from the compressor, so as to meet the requirements of the circulating use of the refrigerant in the system. The selec...
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Tips for seasonal water chiller system shutdown in winter
2021-03-12
Introduction: Winter is coming, and the ambient temperature is about to drop below zero. This will cause great damage to the chillers, water pumps, cooling towers, terminals and other equipment. In order to ensure that chillers work normally during winter, the chiller has to survive in the low temperature environment, because it will cause a great loss to users if the unit is not maintained with p...
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90℃ dual source heat pump | Hstarschiller.com
2021-12-07
H.Stars Group has recently signed a contract with 90℃ dual source heat pump unit project for one of the famous automobile factory to replace the traditional boiler. Below are the features of high-efficiency 90-degree dual source heat pump: 1. Special design and customized size for easy installation. 2. Adopt the special compressor of Hanbell high temperature heat pump, with high compression ratio,...
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How to design an intelligent high efficiency air cooled chiller especially for Offshore Drilling Platform
2021-08-27
Nowadays, oil and gas has become very important and essential to our lives. However, how does the workers to work at the drilling platform with comfortable air conditioning system ? It’s very important for HVAC engineers to make sure how to design an intelligent high efficiency air cooled chiller especially for Offshore Drilling Platform. Today H.Stars Group will give you an actual real case to di...
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How to design cooling system for commercial office building to reduce the emission of carbon dioxide
2022-02-15
First of all we need to understand what is meaning by "carbon dioxide " here. Generally speaking, carbon dioxide emissions refer to the emissions of greenhouse gases such as carbon dioxide and methane. Carbon reduction action is to reduce greenhouse gas emissions, thereby reducing the greenhouse effect. If too much greenhouse gas emissions cause the earth's average temperature to be too high...
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How to design heating system for a pharmaceutical factory dormitory building
2022-04-15
As we know that the simplest way to build heating system for hot water for dormitory is adopting boiler with coal burning ,which will cause CO2 increase for the earth. Here is the good example how to design the heating system with energy saving heat pumps to protect the environment. The project is the central air conditioning project and hot water project of a pharmaceutical factory dormitory buil...
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How to design the energy saving cooling system for factory production line and office building
2022-06-15
Project Overview This project is for one of the new factory buildings for one of the 500 fortune company of Dairy industry . The factory new workshop building area is about 17,000 square meters, with a total of 2 floors. H.Stars Group has helped this company to design the energy saving cooling system by adopting low-temperature chiller and low-ambient temperature air source heat pump unit Pr...
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How H.Stars help you save energy by adopting water-cooled magnetic oil free centrifugal VFD chiller
2023-01-09
As we all know , the society is urging all enterprises to fulfil their obligation on energy saving to keep the earth green for our next generations. H.Stars Group has developed a ner product of magnetic VFD oil-free centrifugal chiller to be able to provide comprehensive partial efficiency IPLV of the unit upto 10, and the partial load energy efficiency value exceeds 13. The operating noise ...
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