GB/T 51396-2019 English PDF
Basic dataStandard ID: GB/T 51396-2019 (GB/T51396-2019)Description (Translated English): Standard for design of parabolic trough solar thermal power plant Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: P60 Classification of International Standard: 29.100.01 Word Count Estimation: 180,162 Date of Issue: 2019-11-22 Date of Implementation: 2020-06-01 Quoted Standard: GB 50007; GB 50009; GB 50010; GB 50011; GB 50013; GB 50014; GB 50015; GB 50016; GB 50019; GB 50028; GB 50034; GB 50040; GB/T 50046; GB/T 50050; GB 50057; GB 50058; GB 50060; GB/T 50063; GB/T 50064; GB/T 50065; GB 50069; GB 50074; GB 50084; GB/T 50102 Regulation (derived from): Ministry of Housing and Urban-Rural Development Announcement No. 316 of 2019 Issuing agency(ies): Ministry of Housing and Urban-Rural Development of the People's Republic of China; State Administration for Market Regulation Summary: This standard applies to new, expanded and rebuilt trough solar thermal power stations using steam turbine generator sets, as well as the trough solar thermal power utilization part combined with other forms of power generation. GB/T 51396-2019: Standard for design of parabolic trough solar thermal power plant---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.1 General 1.0.1 This standard is formulated to standardize the design of trough-type solar thermal power plants and meet the requirements of safety, reliability, advanced technology, and economical rationality. 1.0.2 This standard applies to new construction, expansion and reconstruction of trough solar thermal power plants using steam turbine generator sets, and also applies to trough solar thermal utilization parts combined with other forms of power generation. 1.0.3 The design of trough solar thermal power station should be based on grid access conditions, solar energy resources, hydrology, meteorology, geology and other relevant data. 1.0.4 The design of the trough-type solar thermal power station shall not only comply with the provisions of this standard, but also comply with the provisions of the current relevant national standards. 2 terms 2.0.1 collector The equipment that tracks the movement of the sun, receives solar radiation and transfers heat to the heat transfer medium is usually composed of a series of modules in series, driven by the same common unit and has only one tracking system. 2.0.2 Concentrator concentrator The component of the collector consists of reflective elements that focus solar radiation energy onto the collector tubes. 2.0.3 parabolic trough collector The concentrator has a parabolic section and a trough-shaped heat collector, referred to as a heat collector. 2.0.4 receiver tube A transparent tubular device that receives and transmits heat in the collector. A certain degree of vacuum is drawn between the tube wall and the heat absorber, and the heat absorber has a selective absorption surface. 2.0.5 Parabolic mirror parabolic mirror The concentrator has a reflective mirror with a parabolic section, and the reflective mirror is installed on the curved base of the concentrator. 2.0.6 active length of a receiver When the temperature of the heat-absorbing body of the heat-collecting tube is 25°C, the length from the heat collector to the top of the heat-absorbing body. 2.0.7 collector loop The trough collectors are connected in series, and the heat transfer fluid flows sequentially through the collector tubes in each collector. A collector circuit consists of one or more rows of collectors connected in series. 2.0.8 solar field The area where solar energy is collected and converted into heat, generally consisting of a trough collector circuit and its connections. 2.0.9 solar field net collection area The sum of the net daylighting areas of the collectors on the collector field. The vertical projection of the reflection/refraction component of the collector through the plane of the daylight opening constitutes the net heat collection area of the collector, which needs to be added to the non-overlapping vertical projection of the steel receiver pipe on the daylight plane. 2.0.10 solar thermal power plant A facility that collects solar energy and converts direct solar radiation into electrical energy through a thermal process, generally consisting of a heat collection field and a power generation area. 2.0.11 parabolic trough solar thermal power plant The heat collection field is a solar thermal power station composed of trough collectors and their connections. 2.0.12 irradiance The radiant energy received by an object in unit time and unit area, the unit is. W/m2. 2.0.13 normal direct irradiance direct normal irradiance (DNI) The irradiance of direct radiation in a plane perpendicular to the beam. 2.0.14 transmittance The ratio of bin transmission to incident radiant flux. 2.0.15 absorption ratio absorption The ratio of absorbed to incident radiant flux on a bin. 2.0.16 emission ratio emittance Under the same conditions, the ratio of the radiant energy emitted by the surface of a certain material to the radiant energy emitted by a black body. 2.0.17 heat transfer fluid heat transfer fluid The fluid used to transfer heat between the various components in the system in a solar thermal power plant. 2.0.18 heat transfer oil A kind of special oil with good thermal stability for indirect heat transfer. 2.0.19 molten salt molten salt A non-aqueous inorganic salt melt, most of which are ionic crystals in solid state, form an ionic melt after melting at high temperature. Usually composed of alkali or alkaline earth metals and halides, nitrates, carbonates, sulfates and phosphates. 2.0.20 Low-boiling-point substance The substance whose distillation temperature is lower than the initial boiling point when not in use in the organic heat carrier. 2.0.21 high-boiling-point substance Through the heating test by the simulated distillation method, the boiling point of the sample is higher than that of the substance without the final boiling point of the organic heat carrier. 2.0.22 design point design point In a solar thermal power generation system, it is used to determine a certain year, a certain day, a certain time of the system parameters and the corresponding meteorological conditions and direct solar normal irradiance, etc. 2.0.23 solar multiple When the unit is running under rated load conditions, the ratio of the heat absorbed by the heat collector field to the heat provided by the heat collector field to the generator set under the design point condition. The heat provided by the collector field to the generator set includes the heat loss of the steam generation system. 2.0.24 Sensible heat thermal storage It is a method to make the system store or release heat by changing the temperature of the heat storage medium without phase change. 2.0.25 Storage capacity of heat storage system The complete heat release that can be provided by the heat storage system under certain start-up conditions. 2.0.26 rated charge power rated charge power Thermal power entering the storage system at rated flow and temperature. 2.0.27 rated discharge power rated discharge power Thermal power provided by the thermal storage system under rated flow and temperature conditions. 2.0.28 identification system identification system A coding system that gives a physical object a unique mark to distinguish it from other physical objects. 3 Basic Regulations3.0.1 The site selection of the trough solar thermal power station should comprehensively consider local planning, resources, construction conditions and other factors, and be determined after technical and economic comparison. 3.0.2 The design of the trough solar thermal power station should make rational use of the resource conditions of the site, and coordinate the planning of the current project and the long-term project. 3.0.3 The trough-type solar thermal power station is divided into large, medium and small according to the planned capacity, large is greater than or equal to 400MW, medium is less than 400MW and greater than or equal to 50MW, and small is less than 50MW. 3.0.4 The unit capacity, heat storage system capacity, power generation and operation mode of the trough solar thermal power station shall be determined through technical and economic comparison under the condition of meeting the requirements of the power system. 3.0.5 The heat transfer and heat storage medium, process system, and unit selection of the trough solar thermal power station should be selected through technical and economic comparison. 3.0.6 When the trough solar thermal power station bears the heat supply load, the unit type selection and heat supply mode should be determined through technical and economic comparison. 3.0.7 The system capacity matching of the trough solar thermal power station shall comply with the following regulations. 1 The net daylighting area of the heat collecting field shall match the rated capacity of the turbogenerator set and the capacity of the heat storage system; 2 The maximum continuous evaporation capacity of the steam generation system shall match the maximum steam intake capacity of the steam turbine; 3 The capacity of the generator should match the maximum output of the steam turbine. 3.0.8 The design of trough solar thermal power station should actively apply the advanced technology, advanced process, advanced material and advanced equipment proved by operation practice or industrial test. 3.0.9 The service life of the process system of the trough solar thermal power station should be designed for 25 years. 3.0.10 The design of the trough solar thermal power station should adopt a unified identification system for the whole station.4 Power system4.1 General provisions 4.1.1 The planning and design of the power station shall comply with the overall socio-economic planning of the region and the special planning for the power industry approved by the power authority. 4.3.6 The power station should not be used as the main control station of the system safety automatic control system. When the system requires it, safety automatic devices such as machine cutting actuators can be installed. 4.3.7 If the unit adopts self-shunt excitation system, the generator should be equipped with a power system stabilizer. 4.4 Scheduling automation 4.4.1 The remote control function of the power station should be incorporated into the computer monitoring system, and no separate remote control terminal (RTU) should be provided. The telecontrol information shall comply with the provisions of the current industry standard DL/T 5003 "Code for Design of Power System Dispatch Automation". 4.4.2 Large and medium trough solar thermal power stations should be equipped with automatic generation control system (AGC) and automatic voltage control system (AVC). 4.4.3 The power station should install power dispatching data network access equipment according to the requirements of the power grid dispatching organization. 4.4.4 The power station connected to the 220kV and above voltage system can be equipped with a phasor measurement unit (PMU) as required. 4.4.5 The power station should be equipped with a solar power forecasting and forecasting system, which has the function of uploading real-time information such as power prediction results, normal direct irradiance, and heat storage capacity of the power station to the dispatching department. 4.5 System communication 4.5.1 The communication design of the power station shall comply with the provisions of the current industry standard "Power System Communication Operation Management Regulations" DL/T 544 and "Power System Automatic Switched Telephone Network Technical Specifications" DL/T 598.The communication system shall meet the requirements of dispatching automation, relay protection, safety automatic device, electric energy metering and dispatching telephone. 4.5.2 Two independent dispatching channels should be set up between the large and medium-sized solar trough power station and the power dispatching department, and at least one channel should be an optical fiber digital channel. 4.5.3 The power station should be equipped with a production dispatching communication system, which can take into account the production management communication function. The production dispatching communication system should have the function of networking with the local power dispatching communication system. 4.6 Energy Metering 4.6.1 The electric energy metering point of the power station should be set at the property boundary or settlement point between the power station and the grid facilities, and the high-voltage side of the starting/standby transformer should also be set at the additional electric energy metering gate point. Electric energy metering devices shall comply with the current national standards "Technical Management Regulations for Electric Energy Metering Devices" DL/T 448 and "Code for Design of Electric Measuring Instrument Devices for Power Plants" GB/T 50063.It is advisable to install electric energy meters for assessment at the generator outlet, the high-voltage side of the main transformer and the transformer branch of the high-voltage station. 4.6.2 One set of main and auxiliary electric energy meters of the same model, same specification and same accuracy shall be installed at the same metering point, and the main and auxiliary electric energy meters shall be clearly marked. 4.6.3 The power station should be equipped with an electric energy metering device and an electric energy collection terminal with communication functions, and transmit the information to the grid dispatching and marketing agency.5 Solar resource analysis5.1 General provisions 5.1.1 The design of the trough solar thermal power station should analyze the solar energy resources in the area where the site is located, and carry out adaptability analysis on the relevant geographical conditions, climate characteristics and basic meteorological elements. 5.1.2 When analyzing solar energy resources, a reference meteorological station with long-term observation records of solar radiation near the site should be selected to analyze the changing trends of total irradiance, normal direct irradiance, and air temperature. The selection of reference meteorological stations includes radiation observation stations and meteorological element observation stations. 4.The station site should avoid cultural relics under key protection, and should not be located on open-pit mines or shallow underground mining areas with mining value; when there are cultural relics and mineral deposits in the deep underground layer of the station site, approval documents from relevant departments of cultural relics and mineral deposits should be obtained, and conduct a security assessment. 5 The station site should be selected in a flat area. 6.0.4 When selecting the station site, the basic data of the geological conditions of the station site area shall be obtained to determine the foundation design scheme of each building (structure) in the station. 6.0.5 The seismic fortification intensity of the site shall comply with the provisions of the current national standard "Zoning Map of Earthquake Motion Parameters in China" GB 18306.For cities that have already compiled seismic fortification zoning, the seismic fortification shall be determined according to the approved seismic fortification intensity or design ground motion parameters.7 Master Plan7.1 General provisions 7.1.1 The overall planning of the power station should be coordinated with the overall planning of towns or industrial areas, and the occupied land should meet the requirements of the overall planning of local land use. When operating in conjunction with other forms of power stations, it is advisable to jointly construct public engineering facilities. 7... ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 51396-2019_English be delivered?Answer: Upon your order, we will start to translate GB/T 51396-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 51396-2019_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 51396-2019_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay. |
