Make safety part of the developing design
Hydrogen system safety depends on how the complete installation behaves, including its process, utilities, electrical equipment and controls. Hy-7’s safety and documentation scope includes HAZOP, risk assessment, COSHH and standard operating procedures. These activities connect the design decisions with the way a rig is commissioned, operated and maintained.
The work sits alongside hydrogen test rig design, electrolyser balance of plant and CCUS demonstrator engineering. Considering documentation during the design helps keep equipment changes, operating limits and control responses connected as the system develops.
Use the process as the basis for review
A HAZOP examines deviations from the intended operation. For a hydrogen rig, examples include loss of flow, excess pressure, cooling failure and unintended gas mixing. The P&ID and operating sequence provide a shared basis for discussing causes, consequences and the responses required.
The review should lead to assigned actions and a way to verify their closure before commissioning. Normal operating limits, protective trip settings and equipment design limits serve different purposes. Their relationship needs to be understood when reviewing a proposed response to a deviation.
Connect safeguards with operating behaviour
Venting, pressure control, gas detection and ventilation must be considered as parts of the installation. Discharge arrangements depend on the site as well as the equipment. A response to gas detection or ventilation failure needs a defined relationship with the operating sequence and the equipment state.
Routine controls and protective functions also require a clear boundary. The control architecture should follow the required functions and their assessment. A displayed alarm or an individual component specification does not, by itself, demonstrate the adequacy of the whole system’s protection.
Put practical procedures in place
SOPs should cover operation, purging, maintenance, emergencies and restart. They need to match the system as assembled, including the controls and operating limits. COSHH addresses health risks from substances, such as alkaline electrolyte, alongside the other risks considered for the installation.
Hy-7’s approach is Scope → Design → Build → Test & hand over. Safety assessment and documentation belong throughout that sequence. For an initial discussion, bring the process diagrams, intended operating conditions, substance information and existing risk documents. These help establish the scope of a hydrogen safety and HAZOP engagement, with remote and on-site support available in the UK, Poland, the USA and worldwide. The scope reflects the site and applicable local requirements.