With the rapid development of the AI industry, high-voltage direct current (HVDC) power supply is gradually replacing traditional AC UPS systems and becoming the mainstream power solution for new-generation computing centers due to its high efficiency, low loss, and high reliability. Many owners are concerned: when the power supply is changed from AC to HVDC, is exhaust gas treatment equipment still required for backup generator sets?
Answer: Whether AC or HVDC is used, exhaust gas treatment is essential whenever the backup generator set is started.
The HVDC system is responsible for mains power conversion and distribution. Batteries only provide short-term emergency power, and generator sets must be started to ensure continuous operation during long-term power outages. Diesel generators produce pollutants such as particulate matter, nitrogen oxides, and carbon monoxide. Regardless of whether AC or HVDC is adopted, generator sets must be equipped with exhaust gas treatment devices in accordance with national environmental protection standards to meet national and local emission limits.
Green Valley Environmental Protection Provides One‑Stop Exhaust Gas Treatment Solutions for AI Computing Centers
Green ValleyEnvironmental Protection has deep expertise in generator exhaust purification. To meet the high reliability, low emission, and long‑term operation requirements of AI centers, we provide particulate filter (DPF), SCR denitrification, DOC, DCOF+SCR integrated systems, etc., which efficiently remove black smoke, PM, NOₓ and other pollutants. The purification efficiency meets stricter requirements of domestic and international regulations, and is compatible with diesel generator sets of all power ratings.
Green Valley DPF — The Ultimate Solution for Black Smoke & PM Control
Specially designed for backup generators in computing centers, it efficiently intercepts particulate matter and ensures stable unit operation. It uses imported French 316L alloy metal felt filters, which are high‑temperature resistant and corrosion resistant, adapting to the high‑temperature exhaust conditions of generator sets.
Purification efficiency: up to 98%
- Ringelmann blackness: stably ≤ Grade 1
- Snap‑in extractable design, filter washable and renewable, extremely low maintenance cost
- Intelligent electric control and automatic bypass system: automatically alarms and activates bypass under high backpressure from filter clogging, without affecting normal operation
- Also provides 10–15 dB noise reduction
Green Valley SCR Denitrification System — Ultra‑Low NOₓ Emissions
Precisely controls NOₓ emissions, meeting China Stage IV, China Stage V, stricter local standards, EU Stage V, and US EPA Tier 4 Final (T4F).
Urea solution is accurately injected; under proper temperature and catalyst, NOₓ is reduced to N₂ and H₂O
- Denitrification efficiency: ≥ 97%
- Patented mixing technology ensures full mixing of urea and exhaust
- Adapts to load fluctuations; ammonia slip < 3 ppm, no secondary pollution
- Real‑time monitoring of NOₓ, temperature, and flow; closed‑loop control of urea injection to ensure stable compliance under all operating conditions
Product Advantages of Green Valley Exhaust Gas Treatment Systems
- High efficiency in removing black smoke, high purification rate
- Precise denitrification, stable NOₓ compliance
- High system compatibility, no impact on generator performance
- Remote fault diagnosis and early warning
- Intelligent control system, stable operation, reduced O&M labor cost
- Easy maintenance and simple operation
The upgrade of AI computing centers to HVDC is key to improving energy efficiency, and environmental compliance of backup power supplies is indispensable. With mature technology, reliable products, and customized solutions, Green Valley Environmental Protection helps computing centers achieve a win‑win situation of safe power supply and green emissions, supporting the construction of green computing and low‑carbon data centers.
Post time: Mar-06-2026