Research

Peer-style research articles by the MEPVAULT Editorial Team on Indian MEP design, codes, and applied engineering.

Research

Smoke Control & Pressurisation — NBC 2016 vs NFPA 92 vs BS EN 12101-6
This article applies analytical smoke-layer descent and tenability calculations to three representative Indian high-rise atrium configurations. Available Safe Egress Time (ASET) is computed using the steady-state Heskestad plume + smoke-layer equilibrium method per NFPA 92 §6.2; … Read more →

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This article applies analytical smoke-layer descent and tenability calculations to three representative Indian high-rise atrium configurations. Available Safe Egress Time (ASET) is computed using the steady-state Heskestad plume + smoke-layer equilibrium method per NFPA 92 §6.2; …

Research

Indian VRF Refrigerant Transition — R-22 to R-410A to R-32 to R-454B
This article presents a comparative performance and lifecycle-cost analysis of three low-GWP refrigerants — R32, R454B, and R-1234yf — applied to Indian Variable Refrigerant Flow (VRF) systems. A 100-ton VRF reference system is analyzed for capacity, IEER (Integrated Energy Effic… Read more →

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This article presents a comparative performance and lifecycle-cost analysis of three low-GWP refrigerants — R32, R454B, and R-1234yf — applied to Indian Variable Refrigerant Flow (VRF) systems. A 100-ton VRF reference system is analyzed for capacity, IEER (Integrated Energy Effic…

Research

PUE Performance of Free-Cooling Strategies in Indian Tier-III Data Centres: A Climate-Zone Analysis
This article quantifies the Power Usage Effectiveness (PUE) reduction achievable through free-cooling strategies in Indian Tier-III data centres across five climate zones. A 1 MW reference data centre is analyzed using airside economiser, waterside economiser, and combined approa… Read more →

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This article quantifies the Power Usage Effectiveness (PUE) reduction achievable through free-cooling strategies in Indian Tier-III data centres across five climate zones. A 1 MW reference data centre is analyzed using airside economiser, waterside economiser, and combined approa…

Research

Thermal Comfort — NBC vs ASHRAE 55 vs ISO 7730 vs Adaptive Model
This article synthesises published field-survey data and standards-based predictions to quantify thermal comfort compliance with ASHRAE 55-2020 in Indian mixed-mode commercial offices. Six published Indian field studies are reviewed, covering 1,800+ surveyed occupants across Bang… Read more →

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This article synthesises published field-survey data and standards-based predictions to quantify thermal comfort compliance with ASHRAE 55-2020 in Indian mixed-mode commercial offices. Six published Indian field studies are reviewed, covering 1,800+ surveyed occupants across Bang…

Research

ASHRAE 62.1 VRP vs NBC 2016 Pt 8 vs EN 16798-1 — How Much Outdoor Air Do Indian Buildings Actually Need?
This article presents a comparative analysis of ASHRAE 62.1-2022 Ventilation Rate Procedure (VRP) and NBC 2016 Part 8 ventilation requirements applied to representative Indian commercial occupancies. Five building types are analyzed: open-plan office (200 m², 50 occupants), confe… Read more →

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This article presents a comparative analysis of ASHRAE 62.1-2022 Ventilation Rate Procedure (VRP) and NBC 2016 Part 8 ventilation requirements applied to representative Indian commercial occupancies. Five building types are analyzed: open-plan office (200 m², 50 occupants), confe…

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