H.Stars (Guangzhou) Refrigerating Equipment Group Ltd.

  With increasing environmental regulations and the demand for higher energy efficiency, many industries are rethinking traditional boilers.   Scroll heat pumps   are emerging as a leading, eco-friendly alternative in boiler retrofitting. But why are they the ideal choice? How Scroll Heat Pumps Outperform Traditional Boilers Scroll heat pumps utilize advanced scroll compressor technology to absorb low-grade ambient heat, which they compress and convert into a stable source of high-temperature hot water or steam. Unlike traditional boilers, scroll heat pumps don’t burn fossil fuels, reducing CO₂ emissions and aligning with global green initiatives. Simplified Installation and Cost Savings Switching to scroll heat pumps also simplifies the retrofit process. Their installation and commissioning are less invasive to existing structures, reducing retrofit timelines. With an intelligent control system, scroll heat pumps adjust to real-time demand, optimizing energy efficiency a...

  Ultra-low temperature chillers   play a vital role across various industries and research fields that require precise temperature control. But just how low can the temperature of these chillers go? Understanding How Ultra-Low Temperature Chillers Work Ultra-low temperature chillers function by utilizing refrigerant cycles. The refrigerant absorbs heat in the evaporator, which lowers the temperature of the target object. Then, the compressor compresses the refrigerant into a high-temperature, high-pressure vapor, which moves to the condenser to release heat into a cooling medium (usually water or air) and transitions into a high-pressure liquid. Afterward, the refrigerant passes through an expansion valve, re-entering the evaporator to repeat the cooling cycle. Typical Temperature Ranges The cooling capacity of a chiller depends on the choice of refrigerant and system design. Standard low-temperature chillers generally operate within a cooling range of -15°C to -40°C. However...

  Ensuring proper water quality and temperature settings is crucial in the operation and maintenance of HVAC chiller systems. This not only guarantees efficient system performance but also extends the equipment's lifespan and reduces operational costs. This article provides an in-depth look into the standards for water quality and temperature settings in chiller system maintenance. 1.Water Quality Standards 1. 1 Total Hardness • Limit: Total hardness should not exceed 300mg/L. • Definition: Total hardness primarily refers to the concentration of calcium ions (Ca²⁺) and magnesium ions (Mg²⁺) in water. • Impacts of Exceeding the Limit: • Pipe Narrowing: High hardness causes mineral deposits on pipe walls, forming scale, which reduces pipe diameter, increases water resistance, decreases chilled water flow, and impairs cooling efficiency. • Increased Energy Consumption: Scale increases water resistance, requiring the chilled water pump to work harder, thus increasing energy consumption...