Building decarbonization means cutting the fossil-carbon intensity of how a building is heated, cooled, and powered. Heat recovery is the cheapest decarbonization step there is — it shrinks the load before you ever pay for clean supply. This article frames recovery inside the electrify-and-recover strategy. Recovery First, Then Electrify The decarbonization sequence that costs the […]
Building Performance Standards Carbon
Building Performance Standards (BPS) are laws that cap a building’s greenhouse-gas emissions and tighten the cap over time, with penalties for exceeding it. The flagship is New York City’s Local Law 97 (LL97) of 2019; this article summarizes how it works and the role of heat recovery in compliance. NYC Local Law 97 — Scope […]
Carbon Accounting HVAC
Carbon accounting for HVAC turns “we upgraded the system” into a defensible number for audits, ratings, and regulation. This article maps the frameworks a building owner or engineer must know to report HVAC-related emissions correctly. GHG Protocol Scopes Scope HVAC relevance Scope 1 On-site combustion: gas boilers, furnaces, backup generators (direct CO2) Scope 2 Purchased […]
Net-Zero Operational Carbon Buildings: Pathway and Verification
Defining Net-Zero Operational Carbon A net-zero operational carbon building is highly energy efficient and fully powered by renewables, with any remaining operational emissions offset. Frameworks include the World Green Building Council Net Zero Carbon Buildings Commitment, LEED Zero Carbon, and ILFI Zero Carbon. Operational carbon covers Scope 1, on-site combustion, and Scope 2, purchased electricity. […]
Embodied Carbon of HVAC and Heat Recovery Systems
Embodied vs Operational Carbon in HVAC Whole-building life-cycle assessment per EN 15978 splits carbon into embodied, product, construction, end-of-life, and operational, use. For HVAC, embodied carbon has two big drivers, refrigerant leakage and equipment manufacturing. Refrigerant Leakage Dominates A system lifetime refrigerant emissions are counted as CO2-equivalent using GWP. A leaky R-410A, GWP 2088, or […]
SCAC 活性炭フィルターカートリッジ
What Is an SCAC Activated Carbon Filter Cartridge? The SCAC activated charcoal filter cylinder is a modular gas-phase filtration unit for commercial and industrial HVAC systems. It is engineered to strip odours and harmful gases from ventilation air, protecting occupants, equipment and stored collections. How Activated Carbon Works Granular activated carbon contains a vast network […]