Hot air infiltration at doors
Creates thermal discomfort; RMPU overworks
Why Railways Need Advanced Air-Barrier Solutions
The [Industry] sector demands consistent environmental control, reliable hygiene standards, and efficient entryway management. Whether it involves maintaining temperature balance, preventing insects, controlling contamination, or ensuring smooth customer and staff movement, Mitzvah provides engineered solutions tailored to real operational challenges. Our products are trusted across India by leading brands in the [Industry] segment for their durability, ease of installation, and long-term performance.
Uneven temperature distribution
Hot spots near doors, cold spots mid-coach
High compressor load
Increased energy consumption & HVAC wear
Passenger complaints
Impacts overall service experience
Temperature leakage during halts & direction changes
Significant heat spike across the coach
High operational cost
Lower RMPU set-points = higher AC load
Solution
High-Performance Rail-Grade Air Curtains
Our air curtains are engineered for rail environments:
Optimized for high-speed airflow isolation Maintain indoor comfort at higher RMPU set-points (24°C instead of 21°C) Reduce compressor run-time Prevent heat, dust, insects, and odor from entering coaches Enhance passenger comfort, especially at door-entry zones Improve system reliability under dynamic train motion
Additional Rail-Ready Options:
• Custom mounting designs for LHB / Vande Bharat coaches • Low-noise rail-specific blower configurations • Fire-safe materials • OEM integration support
Benefits
Mitzvah Solutions for [Industry]
Unknown
Operational Benefits
Up to 20–30% reduction in compressor load Higher RMPU efficiency & reduced cycling Longer HVAC system lifespan
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Unknown
Passenger Comfort Benefits
Major comfort improvement near doors Elimination of sudden heat blasts Uniform cooling across saloon area
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Unknown
Environmental Benefits
Lower energy consumption Reduced peak AC load Supports Indian Railways’ sustainability push
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Unknown
Performance Benefits
Maintains climatic separation despite: #Direction changes of train #Open-door conditions #Pantry-side heat surges #Extreme outdoor temperatures
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Case Studies
Vande Bharat Express (Indian Railways)
Trial conducted on Coach C6 (with air curtain) vs. Coach C5 (without) Train route: NZM → Khajuraho → NZM Dates: 27 March 2025 & 8 April 2025 38 temperature sensors + airflow measurements Goal: Assess comfort, AC load, temperature uniformity, and climatic separation
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Vande Bharat Express (Indian Railways)
Trial conducted on Coach C6 (with air curtain) vs. Coach C5 (without) Train route: NZM → Khajuraho → NZM Dates: 27 March 2025 & 8 April 2025 38 temperature sensors + airflow measurements Goal: Assess comfort, AC load, temperature uniformity, and climatic separation
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Why Air Curtains Work on Trains
Using controlled airflow at ~2.7 m/s (reported during test) to create an invisible barrier, air curtains prevent mixing of hot outdoor air with cooled indoor air. Recommendations suggest increasing blower speed to 3.0–3.5 m/s for optimal performance per AMCA guidelines. Uniform temperature maps from the trial show significantly flatter spatial gradients in C6 (with air curtain) compared to C5 (without).
Recommendation
Mitzvah Solutions for Railways
Vande Bharat / LHB Coaches
• High-speed air curtains (rail-grade)
Pantry Areas
• Heavy-duty high-temperature barrier air curtains
Door Areas
• Low-noise air curtains with optimized throw
OEM / Modern Coach Factories
• Custom integration + testing & commissioning support
Customer Impact Summary
Reduced passenger complaints Improved energy efficiency (higher RMPU setpoints) More balanced cabin temperatures Less thermal shock during direction changes Improved AC reliability in Indian summers Optimized operational cost for Railways
FAQs
Frequently Asked Questions
Do air curtains affect air-conditioning efficiency?
Yes, positively. Trials show reduced compressor load and ability to operate at higher set-points.