ASME TES-1-2020 pdf free

ASME TES-1-2020 pdf free.Safety Standard for Thermal Energy Storage Systems: Molten Salt.
Planning shall be conducted in a manner that supports the safety of the molten salt TES system from system design initiation through construction, installation,testing, commissioning, maintenance, and operation,ending with its decommissioning. Planning shall identify special precautions that shall be taken to protect operating personnel and personnel working near the molten salt TES system.
The designer shall take the following steps during the planning phase of the project:
Step 1. Develop a design basis document that includes
(a) system description
(b) scope of supply
(c) design codes and standards
(d) general design requirements
(e) specific design requirements (e.g., design temperature, heat rate, thermal cycles)
(f) material requirements
(g) salt specification
Step 2. ldentifr and consider environmental and relevant site-related issues associated with the proposed project.
Step 3. Conduct hazard analysis, such as failure modes and effects analysis (FM EA), hazards and operability study (HAZOP), or hazard mitigation analysis (HMA).
Step 4. Prepare a project-specific safety-basis document that defines the safety analysis and hazard mitigation controls intended to ensure that the molten salt TES system can be operated in a manner that protects workers, the public, and the environment.
Step 5. Identil’ and comply with laws, rules, and regulations applicable to the project site and the proposed project.
Step 6. Preliminarily develop a commissioning plan as described in para. 5.2, an operations and maintenance manual as described in para. 6.3, and an emergency response plan as described in para. 5.2.4.
Step 7. Provide means to contain any possible leaks from the system.
4.2 Design
Molten salt 1E5 systems shall he designed in accordance with the provisions of this Standard. The design of the system shall also comply with the instructions provided by the manufacturer of the equipment, controls, and other components comprising the system. Any change in design requirements or material substitutions by the manufacturer shall be approved by the designer.
4.2.1 GeneraL
(a) The system shall be designed to withstand the specified temperature and pressure conditions of the molten salt.
(b) Systems employing nitrate salts that may exceed 450°C (842°F) shall be designed to safely manage vaporization of the salt and production of oxygen and NOx gas from salt decomposition.
(e) The system shall be designed to safely contain or relieve pressures where there is a possibility that the salts and the heat transfer fluids can be mixed.
4.2.2 Signs and LabeLing. All equipment shall be labeled and signage shall be provided in accordance with ASME Alil or in accordance with local regulations.
(a) Molten salt storage tanks shall be marked to identify the
(1) associated hazards in accordance with NFPA 704
(2) tank number
(3) type of molten salt
(4) maximum allowable amount of salt in the tank by weight
(5) maximum operating pressure and temperature
(b) All heat exchangers shall have signs indicating the maximum operating temperature of the heat exchanger in accordance with the standard to which it is manufactured. Signage shall include the chemical formula or types of salt(s) that are suitable for use in the system.
(c) All system components with a heat tracing system shall have labels indicating the presence of heat tracing. The heat trace itself shall include a permanent marking indicating its maximum operating temperature. Cladding shall be marked with the heat trace manufacturer’s warning label indicating that the equipment is heat traced. Stainless steel tags shall be affixed to all heat trace elements indicating circuit information.
4.2.3 Storage Tank Systems
4.2.3.1 Tank Requirements. The minimum requirements for the design. construction. installation, commissioning. inspection, and decommissioning of molten salt storage tanks are provided herein. These requirements shall also apply to piping connected internally or externally to the roof, shell, or bottom of the tank up to the face othe first flange of bolted connections, the first threaded joint on threaded pipe connections, and the first circumferential joint in welding-end pipe connections that are not welded to a flange.ASME TES-1 pdf download.