H.Stars (Guangzhou) Refrigerating Equipment Group Ltd.

  In the pursuit of building energy efficiency, ice thermal storage systems stand out as a transformative solution. By producing ice during off-peak nighttime hours and utilizing it for cooling during daytime peak periods, these systems significantly cut energy costs and reduce grid strain. At the core of this technology lies a critical decision: choosing the right chiller technology—centrifugal or screw. This guide explores their differences and offers insights into making the best choice for your specific needs. Centrifugal vs. Screw Chillers: Core Advantages Centrifugal Chillers Centrifugal units compress refrigerant using high-speed impellers, boasting high single-unit capacity (often >2,000 RT) and exceptional energy efficiency (IPLV ratings over 10.0). Ideal for super-large commercial projects, they maintain strong partial load performance between 40%–100%. However, they are prone to surge effects at low loads and typically require variable frequency drives or multi-head d...

  How Fast Can an Air-Cooled Scroll Chiller Cool? Air-cooled scroll chillers  have become a go-to choice for commercial and industrial cooling applications thanks to their compact size, low noise, and high efficiency. But when it comes to cooling speed—how fast do they really work? The answer depends on three key factors: Unlocking Cooling Speed: How Air-Cooled Scroll Chillers Deliver Results. 1. Design Matters: Single-Stage vs. Two-Stage Cooling Cooling speed begins with design. Air-cooled scroll chillers typically come in single-stage or two-stage configurations. Two-stage units naturally offering enhanced cooling efficiency and faster results due to better refrigerant compression dynamics. Moreover, state-of-the-art heat exchangers and optimized refrigerant circulation systems ensure seamless operation. When designed with precision, these systems achieve quicker cooling without compromising energy efficiency, making them ideal for high-demand environments. 2. Intelligent Fe...

  In the world of industrial cooling, scroll air-cooled chillers are spearheading an energy-efficiency revolution. Among them, the newly launched 800kW chiller by   H.Stars Group   has quickly become a topic of industry discussion. But what qualifies as a “large-scale” unit in this field? Let’s decode the standards of industrial chiller classification from a technical perspective. 1. Understanding Chiller Size Classifications In the HVAC industry, the size of a chiller is defined by more than just its physical footprint. According to ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning Engineers),  scroll air-cooled chillers  can be categorized by cooling capacity as follows (for reference): • Small Units: <200kW • Medium Units: 200–500kW • Large Units: >500kW This classification considers system integration, efficiency curves, and actual application environments—not just output power. International giants like Trane and Carrier follow s...

  In the maritime industry,   heat exchangers   play a vital role in ensuring the efficiency and safety of ship operations. Marine heat exchangers made with stainless steel tubes and nickel-copper tube sheets have emerged as the preferred solution due to their exceptional performance and durability. Advantages of Stainless Steel Tubes in Marine Heat Exchangers Stainless steel is renowned for its outstanding corrosion resistance and high-temperature tolerance. In the harsh marine environment, where seawater and various working media pose significant corrosion risks,  stainless steel tubes  offer long-lasting protection and efficiency. Their high strength and excellent processability enable them to withstand high pressure, making them well-suited for the complex and variable conditions ships often encounter. Benefits of Nickel-Copper Alloy Tube Sheets The use of nickel-copper alloy combined with carbon steel for tube sheets provides superior corrosion resistance, ...

  Among the many pieces of equipment in industrial settings,   dual-mode screw inverter chillers   shine like unique gems, offering exceptional value. For businesses, understanding their special features not only maximizes their efficiency but also brings unexpected benefits in cost control and productivity improvement. Whether in the production workshops of large factories or the server rooms of data centers, dual-mode screw inverter chillers play a vital role. Today, let’s explore what makes them so special. 1. Dual-Mode Operation One of the standout features of dual-mode screw inverter chillers is their ability to operate in two distinct modes: cooling and ice-making. They can seamlessly switch between these modes based on actual needs. In cooling mode, they provide a stable low-temperature environment for production equipment and office spaces, effectively reducing temperatures and ensuring smooth operations while preventing overheating-related failures or reduced lif...

  In the chemical industry,  heat exchangers  are critical equipment for achieving material heat exchange and improving energy efficiency. United Factory, a professional heat exchanger manufacturer, has customized a stainless steel spray heat exchanger tailored to the specific n eeds of chemical plants, meeting the high-performance requirements of heat exchange equipment in chemical production. Material selection is crucial. United Factory uses high-quality 316L stainless steel as the main material for the  spray heat exchanger . This material not only offers excellent corrosion resistance, capable of withstanding the acidic and alkaline environments common in chemical production, but also ensures stable operation under complex working conditions due to its high thermal conductivity and excellent processing properties. The design structure reflects innovation and practicality. The spray heat exchanger improves heat exchange efficiency by uniformly spraying the coolin...