Standards

DB31/T 1396-2023 Fan system operating energy efficiency evaluation technical specification

This document specifies the method for evaluating the energy efficiency of fan systems, including the organization and preparation for the evaluation of fan systems, the implementation of the evaluation, data analysis, optimization of operating energy efficiency, and requirements for the preparation of evaluation reports and documents.
This document is applicable to the evaluation of the operation of centrifugal and axial fan systems with a power of 11 kW or more, and the analysis of their energy-saving potential. Other types of fan systems can be implemented in accordance with this document.

Publish Date: 2023-01-31

DB31/T 1393-2023 White Magnolia planting and maintenance techniques specifications

This document stipulates the requirements for seedling selection, pre-planting preparation, planting, maintenance, and pest and disease control during the planting and maintenance of magnolia trees.
This document is applicable to the planting and maintenance of magnolia trees in the Shanghai area.

Publish Date: 2023-01-31

DB31/T 522-2023 Ventilation system energy-saving renovation technical specifications

This document stipulates the basic principles, implementation process, technical measures, technical requirements, testing methods, and effect evaluation for the energy-saving transformation of ventilator systems.
This document is applicable to the energy-saving transformation of AC-driven ventilator systems (with a working pressure of <15 kPa), and other types of ventilator systems can also be implemented in accordance with it.

Publish Date: 2023-01-31

DB31/T 960-2023 Cooling tower energy-saving monitoring

Publish Date: 2023-01-31

DB31/T 728-2023 The economic operation management requirements for food cold storage

This document stipulates the basic requirements for the economic operation and management of food cold storage facilities primarily used for storage, including economic operation and management, evaluation indicators and methods, and energy efficiency testing methods for cold storage facilities.
This document is applicable to the economic operation and management of existing large and medium-sized food cold storage facilities primarily used for storage. The management of small cold storage facilities can be implemented with reference to this document. Newly built cold storage facilities should follow these requirements during the design process.

Publish Date: 2023-01-31

DB31/T 616-2023 Pump system energy-saving renovation technical specifications

This document stipulates the basic principles for identifying energy-saving modifications to pump systems, the technical route for energy-saving modifications, technical measures, testing methods, and effect evaluation.
This document is applicable to the energy-saving modification of pump systems used for transporting clean water and similar media.

Publish Date: 2023-01-31

DB31/T 853-2023 Cyclic cooling water system surplus energy optimization and evaluation technical requirements

This document specifies the preliminary diagnosis, optimization utilization technical requirements and measures for the recovery and utilization of surplus energy in the circulating cooling water system (hereinafter referred to as "surplus energy utilization"), as well as the calculation and evaluation of surplus energy utilization.
This document is applicable to water-driven fans and cooling towers and their systems, and also to cooling towers driven by a combination of water and electricity, jet cooling towers and their systems.

Publish Date: 2023-01-31