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Based on the design and operational conditions of Guangdong Huaying LNG Terminal and its surrounding industrial environment, a cascade utilization scheme integrating thermodynamic power generation with shallow cold storage was developed. Moreover, key process parameters were modeled and solved using HYSYS software to enhance energy efficiency and maximize cold energy utilization. The results show that, under the condition of minimum daily send-out (228 t/h), the original single-stage thermodynamic cycle coupled with cold storage achieved an annual power generation exceeding 32.83 GW·h while meeting the cooling demand of a 7 500 m³ cold storage facility. The optimized scheme adopts a two-stage thermodynamic cycle with shallow cold storage, via employing a 40% (weight percentage) ethane and 60% (weight percentage) propane mixed working fluid, and elevating heat source temperature, this improved design increased the annual power generation to 62.04 GW·h, and raised the net power output per unit mass of LNG from 17.54(kW·h)/t to 33.02 (kW·h)/t, with estimated annual electricity cost savings of approximately 53.641 million yuan. Although multi-stage heat engine cycles can reduce irreversible losses caused by temperature differences, considering factors such as cost-benefit ratio and operational reliability, the second scheme demonstrates strong engineering feasibility and economic viability by closely aligning with the actual conditions of the Huaying LNG Receiving Terminal. Both cascade utilization designs demonstrate distinct advantages for different development stages of the receiving terminal and different evaluation indicators for LNG cold energy utilization, providing valuable references for post-commissioning cold energy applications.
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基于广东华瀛液化天然气(LNG)接收站的设计运行条件和周边产业环境,首先设计了一套热机循环发电耦合浅冷冻库的LNG冷能梯级利用方案,并采用专业软件HYSYS建模求解流程中的关键参数,以提升能效和大规模消纳冷能为目标,对原有方案进一步优化改进。结果表明:在全年最低气化日LNG外输量为228 t/h的条件下,原方案采用一级热机循环与冻库结合,年发电量超过3 283×104 kW·h,并满足了7 500 m3冻库的冷负荷需求;而优化设计后的新方案采用“两级热机循环-浅冷冻库”设计,通过提升热源温度,并改用质量分数40%乙烷和60%丙烷的混合工质,使热机循环系统的设计年发电量可提升至6 204×104 kW·h,单位质量LNG的净发电量从原先的17.54 (kW·h)/t增加到33.02 (kW·h)/t,还可节约约5 364.1万元/年电费。尽管多级的热机循环能够减少温差造成的不可逆损失,但考虑投入产出比及运行可靠性等因素,第二方案能与华瀛LNG接收站实际条件紧密结合,具有较好的工程可行性和经济性。上述2种冷能梯级利用设计方案各有优势,适用于接收站的不同发展阶段和LNG冷能利用的不同评价指标,为华瀛LNG接收站全面投产后的冷能利用提供了有益参考。
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黄华(1984),男,硕士,高级工程师,主要研究方向为LNG储运及能源综合利用,hh18513102383@163.com。
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黄华(1984),男,硕士,高级工程师,主要研究方向为LNG储运及能源综合利用,hh18513102383@163.com。
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1.Huating Natural Gas Co., Ltd., Chaozhou 521000, China), AuthorCompanyExt(id=1217836025498485756, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, companyId=1217836025485902842, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.华瀛天然气股份有限公司,广东 潮州 521000)]), AuthorCompany(id=1217836025590759427, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, xref=2., ext=[AuthorCompanyExt(id=1217836025594953731, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, companyId=1217836025590759427, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.Institute of Resource Recycling and Carbon Neutral Technology, Chongqing University of Science and Technology, Chongqing 400000, China), AuthorCompanyExt(id=1217836025603342340, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, companyId=1217836025590759427, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.重庆科技大学资源循环利用与碳中和技术研究院,重庆 400000)])], figs=[ArticleFig(id=1217836031932547384, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=EN, label=Fig.1, caption=
The cascade utilization route of cold energy in Huaying LNG Terminal, figureFileSmall=4k42QMHCowtpQQEYlc7u1Q==, figureFileBig=DQBf6qJrzTWvwSmker/5rA==, tableContent=null), ArticleFig(id=1217836032020627776, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=CN, label=图1, caption=
华瀛LNG接收站冷能梯级利用路线, figureFileSmall=4k42QMHCowtpQQEYlc7u1Q==, figureFileBig=DQBf6qJrzTWvwSmker/5rA==, tableContent=null), ArticleFig(id=1217836032213565773, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=EN, label=Fig.2, caption=
Process flow of LNG cold energy cascade utilization, figureFileSmall=tH1jv0dryz1r8xuvjntAMw==, figureFileBig=oxHVY63dc2gPbcmNuC+K8Q==, tableContent=null), ArticleFig(id=1217836032318423379, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=CN, label=图2, caption=
LNG冷能梯级利用工艺流程Q1、Q2为对应设备的输出功;Q3、Q4为对应设备的输入功
, figureFileSmall=tH1jv0dryz1r8xuvjntAMw==, figureFileBig=oxHVY63dc2gPbcmNuC+K8Q==, tableContent=null), ArticleFig(id=1217836032419086681, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=EN, label=Fig.3, caption=
The heat transfer situation inside the heat exchanger E1, figureFileSmall=WmPzQeU80p9c5R4bC4auQg==, figureFileBig=Zh68gZ5yNrsjR129e5Fxjw==, tableContent=null), ArticleFig(id=1217836032507167073, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=CN, label=图3, caption=
E1换热器内部换热情况, figureFileSmall=WmPzQeU80p9c5R4bC4auQg==, figureFileBig=Zh68gZ5yNrsjR129e5Fxjw==, tableContent=null), ArticleFig(id=1217836032578470245, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=EN, label=Fig.4, caption=
The improved process flow of LNG cold energy cascade utilization (two-stage power cycle coupled with shallow freezer), figureFileSmall=pX5NiEC30sChqBqNvvXldw==, figureFileBig=w1/qCJtxZbvrWLo4R8aV4Q==, tableContent=null), ArticleFig(id=1217836032700105069, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=CN, label=图4, caption=
改进后的LNG冷能梯级利用工艺流程(两级热机循环-浅冷冻库), figureFileSmall=pX5NiEC30sChqBqNvvXldw==, figureFileBig=w1/qCJtxZbvrWLo4R8aV4Q==, tableContent=null), ArticleFig(id=1217836032800768369, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=EN, label=Tab.1, caption=
The advantages and disadvantages of common power generation methods
, figureFileSmall=null, figureFileBig=null, tableContent=
| 发电方式 | 优点 | 缺点 | 适用性 |
|---|
| 直接膨胀法 | 简单易实现 | 利用效率较低 | 主要用于小型LNG气化站,国外已投用多套 |
| 低温朗肯循环法 | 投资不高,原理简单,环保 | 利用效率较低 | 适用性强,国外已投用多套 |
| 联合法 | 整合不同技术优势,效率高 | 系统较复杂,初始投资和管理成本高 | 主要用于低压外输管网,国外已投用多套 |
| 混合媒体法 | 效率较高,可覆盖LNG更大的冷能温域 | 系统较复杂,混合工质选择比较关键 | 适用于大型LNG气化站 |
), ArticleFig(id=1217836032918208889, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=CN, label=表1, caption=
常见发电方式优缺点对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 发电方式 | 优点 | 缺点 | 适用性 |
|---|
| 直接膨胀法 | 简单易实现 | 利用效率较低 | 主要用于小型LNG气化站,国外已投用多套 |
| 低温朗肯循环法 | 投资不高,原理简单,环保 | 利用效率较低 | 适用性强,国外已投用多套 |
| 联合法 | 整合不同技术优势,效率高 | 系统较复杂,初始投资和管理成本高 | 主要用于低压外输管网,国外已投用多套 |
| 混合媒体法 | 效率较高,可覆盖LNG更大的冷能温域 | 系统较复杂,混合工质选择比较关键 | 适用于大型LNG气化站 |
), ArticleFig(id=1217836033014677889, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=EN, label=Tab.2, caption=
Physical properties of common working fluids
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工质 | 常压沸点/℃ | 凝固点/℃ | 临界温度/℃ | 临界压力/MPa |
|---|
| 乙烷 | –88.6 | –182.5 | 32.2 | 4.6 |
| 丙烷 | –42.1 | –187.7 | 36.0 | 4.3 |
| 正丁烷 | –0.5 | –138.3 | 38.0 | 3.8 |
| 异丁烷 | –11.7 | –140.3 | 36.0 | 3.7 |
| 乙烯 | –103.7 | –169.2 | 9.2 | 5.0 |
| 丙烯 | –47.7 | –103.8 | 8.4 | 4.6 |
), ArticleFig(id=1217836033123729801, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=CN, label=表2, caption=
几种常见工质物性参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工质 | 常压沸点/℃ | 凝固点/℃ | 临界温度/℃ | 临界压力/MPa |
|---|
| 乙烷 | –88.6 | –182.5 | 32.2 | 4.6 |
| 丙烷 | –42.1 | –187.7 | 36.0 | 4.3 |
| 正丁烷 | –0.5 | –138.3 | 38.0 | 3.8 |
| 异丁烷 | –11.7 | –140.3 | 36.0 | 3.7 |
| 乙烯 | –103.7 | –169.2 | 9.2 | 5.0 |
| 丙烯 | –47.7 | –103.8 | 8.4 | 4.6 |
), ArticleFig(id=1217836033241170318, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=EN, label=Tab.3, caption=
Input conditions for LNG cold energy cascade utilization
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 内容 |
|---|
| LNG的摩尔组分/% | 甲烷 | 99.81 |
| 氮气 | 0.18 |
| 乙烷 | 0.01 |
| LNG设计质量流量/(t·h–1) | 228 | |
| LNG入口温度/℃ | –162.0 | |
| LNG入口压力(绝对压力)/kPa | 7 300 | |
| 海水入口温度/℃ | 26.6 | |
| 海水设计质量流量/(t·h–1) | 8 000 | |
| 热机循环发电介质 | 丙烷 | |
| 冻库冷媒循环介质 | 质量分数68%的乙二醇溶液 |
| 丙烷循环泵的压差/kPa | 850 | |
| 膨胀机内效率% | 80 | |
| 丙烷循环泵绝热效率/% | 75 | |
| 换热器压差的沿程损失/kPa | 10~50 | |
), ArticleFig(id=1217836033316667794, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=CN, label=表3, caption=
LNG冷能梯级利用输入条件
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 内容 |
|---|
| LNG的摩尔组分/% | 甲烷 | 99.81 |
| 氮气 | 0.18 |
| 乙烷 | 0.01 |
| LNG设计质量流量/(t·h–1) | 228 | |
| LNG入口温度/℃ | –162.0 | |
| LNG入口压力(绝对压力)/kPa | 7 300 | |
| 海水入口温度/℃ | 26.6 | |
| 海水设计质量流量/(t·h–1) | 8 000 | |
| 热机循环发电介质 | 丙烷 | |
| 冻库冷媒循环介质 | 质量分数68%的乙二醇溶液 |
| 丙烷循环泵的压差/kPa | 850 | |
| 膨胀机内效率% | 80 | |
| 丙烷循环泵绝热效率/% | 75 | |
| 换热器压差的沿程损失/kPa | 10~50 | |
), ArticleFig(id=1217836033392165269, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=EN, label=Tab.4, caption=
Power generation and cooling supply under simulated conditions
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 模拟计算结果 |
|---|
| 发电系统LNG冷能/kW | 54 720.0 |
| 膨胀机输出功率/kW | 4 104.0 |
| 循环泵功耗/kW | 105.5 |
| 热机(发电)效率/% | 7.5 |
| 单位质量LNG的净发电量/(kW·h·t–1) | 17.54 |
| 冻库系统中NG的质量流量/(t·h–1) | 9.5 |
| 冻库供冷功率/kW | 958.6 |
| LNG冷能综合利用率/% | 9.3 |
), ArticleFig(id=1217836033568326045, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=CN, label=表4, caption=
模拟工况下系统发电、供冷情况
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 模拟计算结果 |
|---|
| 发电系统LNG冷能/kW | 54 720.0 |
| 膨胀机输出功率/kW | 4 104.0 |
| 循环泵功耗/kW | 105.5 |
| 热机(发电)效率/% | 7.5 |
| 单位质量LNG的净发电量/(kW·h·t–1) | 17.54 |
| 冻库系统中NG的质量流量/(t·h–1) | 9.5 |
| 冻库供冷功率/kW | 958.6 |
| LNG冷能综合利用率/% | 9.3 |
), ArticleFig(id=1217836033668989345, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=EN, label=Tab.5, caption=
Exergy values of key equipment in power generation
, figureFileSmall=null, figureFileBig=null, tableContent=
| 关键设备 | 支付㶲/kW | 收益㶲/kW | 㶲损/kW | 㶲效率/% |
|---|
| E1换热器 | 19 988 | 6 513 | 13 475.00 | 32.58 |
| E4换热器 | 1 159.17 | 160.67 | 998.50 | 13.86 |
| 膨胀机 | 5 418.83 | 4 104 | 1 314.83 | 75.74 |
| 发电系统 | 19 988 | 4 264.67 | 15 723.33 | 21.34 |
), ArticleFig(id=1217836033752875429, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=CN, label=表5, caption=
发电关键设备的㶲值情况
, figureFileSmall=null, figureFileBig=null, tableContent=
| 关键设备 | 支付㶲/kW | 收益㶲/kW | 㶲损/kW | 㶲效率/% |
|---|
| E1换热器 | 19 988 | 6 513 | 13 475.00 | 32.58 |
| E4换热器 | 1 159.17 | 160.67 | 998.50 | 13.86 |
| 膨胀机 | 5 418.83 | 4 104 | 1 314.83 | 75.74 |
| 发电系统 | 19 988 | 4 264.67 | 15 723.33 | 21.34 |
), ArticleFig(id=1217836033828372906, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=EN, label=Tab.6, caption=
The optimized parameter design
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| 节点 | 介质 | 温度/℃ | 压力/kPa | 质量流量/(t·h–1) |
|---|
| 1 | 丙烷 | –38.9 | 110 | 150 |
| 2 | 丙烷 | –42.5 | 100 | 150 |
| 3 | 丙烷 | –41.8 | 1 100 | 150 |
| 4 | 丙烷 | 30.4 | 1 090 | 150 |
| 5 | 乙烷、丙烷(2:3) | –53.4 | 110 | 160 |
| 6 | 乙烷、丙烷(2:3) | –76.5 | 100 | 160 |
| 7 | 乙烷、丙烷(2:3) | –75.7 | 1 400 | 160 |
| 8 | 乙烷、丙烷(2:3) | 19.0 | 1 390 | 160 |
| 9 | LNG | –162 | 7 300 | 228 |
| 10 | LNG | –81.8 | 7 280 | 228 |
| 11 | NG | –40.5 | 7 260 | 228 |
| 12 | NG | –36.8 | 7 240 | 228 |
| 13 | NG | 20.0 | 7 220 | 228 |
| 14 | 热排海水 | 34.6 | 300 | 5 000 |
| 15 | 热排海水 | 31.1 | 270 | 5 000 |
| 16 | 热排海水 | 26.9 | 240 | 5 000 |
| 17 | 热排海水 | 25.0 | 210 | 5 000 |
| 18 | 乙二醇水溶液 | 0 | 200 | 40 |
| 19 | 乙二醇水溶液 | –35.0 | 200 | 40 |
), ArticleFig(id=1217836033929036207, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=CN, label=表6, caption=
优化后的参数设计
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| 节点 | 介质 | 温度/℃ | 压力/kPa | 质量流量/(t·h–1) |
|---|
| 1 | 丙烷 | –38.9 | 110 | 150 |
| 2 | 丙烷 | –42.5 | 100 | 150 |
| 3 | 丙烷 | –41.8 | 1 100 | 150 |
| 4 | 丙烷 | 30.4 | 1 090 | 150 |
| 5 | 乙烷、丙烷(2:3) | –53.4 | 110 | 160 |
| 6 | 乙烷、丙烷(2:3) | –76.5 | 100 | 160 |
| 7 | 乙烷、丙烷(2:3) | –75.7 | 1 400 | 160 |
| 8 | 乙烷、丙烷(2:3) | 19.0 | 1 390 | 160 |
| 9 | LNG | –162 | 7 300 | 228 |
| 10 | LNG | –81.8 | 7 280 | 228 |
| 11 | NG | –40.5 | 7 260 | 228 |
| 12 | NG | –36.8 | 7 240 | 228 |
| 13 | NG | 20.0 | 7 220 | 228 |
| 14 | 热排海水 | 34.6 | 300 | 5 000 |
| 15 | 热排海水 | 31.1 | 270 | 5 000 |
| 16 | 热排海水 | 26.9 | 240 | 5 000 |
| 17 | 热排海水 | 25.0 | 210 | 5 000 |
| 18 | 乙二醇水溶液 | 0 | 200 | 40 |
| 19 | 乙二醇水溶液 | –35.0 | 200 | 40 |
), ArticleFig(id=1217836034025505203, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=EN, label=Tab.7, caption=
Simulation results of key equipment for the original and new schemes
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 原方案 | 新方案 |
|---|
| 发电系统LNG冷能/kW | 54 720.0 | 54 720.0 |
| 膨胀机输出功/kW | 4 104.0 | Q1为3 377.0 |
| Q2为4 378.0 |
| 循环泵功耗/kW | 105.5 | Q3为95.5 |
| Q4为132.0 |
| 发电效率/% | 7.5 | 14.2 |
| 单位质量LNG的净发电量/((kW·h)·t–1) | 17.54 | 33.02 |
| 冻库系统供冷功率/kW | 960.0 | 960.0 |
| LNG冷能综合利用率/% | 9.3 | 15.9 |
), ArticleFig(id=1217836034147140024, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=CN, label=表7, caption=
原、新方案各关键设备模拟结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 原方案 | 新方案 |
|---|
| 发电系统LNG冷能/kW | 54 720.0 | 54 720.0 |
| 膨胀机输出功/kW | 4 104.0 | Q1为3 377.0 |
| Q2为4 378.0 |
| 循环泵功耗/kW | 105.5 | Q3为95.5 |
| Q4为132.0 |
| 发电效率/% | 7.5 | 14.2 |
| 单位质量LNG的净发电量/((kW·h)·t–1) | 17.54 | 33.02 |
| 冻库系统供冷功率/kW | 960.0 | 960.0 |
| LNG冷能综合利用率/% | 9.3 | 15.9 |
), ArticleFig(id=1217836034243609022, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=EN, label=Tab.8, caption=
Performance comparison of the proposed process with other existing processes
, figureFileSmall=null, figureFileBig=null, tableContent=
| 发电方式 | 单位质量LNG净发电率/(kW·h·t–1) | 㶲效率HEx/% | 海水温度/℃ |
|---|
| 二级朗肯串联+直接膨胀[26](CCC系统) | 21.34 | 20.75 | 20.0 |
| 三级朗肯循环-独立混联[27] | 24.26 | 25.70 | 25.0 |
| 两级朗肯循环-混联[28](TCRC系统) | 23.87 | 24.62 | 15.0~20.0 |
| 三级朗肯循环-独立混联[29] | 29.17(非LNG做冷源) | 34.30 | 15.0 |
| 两级朗肯串联+直接膨胀[25] | | 42.70 | 15.0~20.0 |
| 两级热机循环串联 | 33.02 | 35.05 | 34.6 |
), ArticleFig(id=1217836034323300802, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=CN, label=表8, caption=
本研究工艺与其他现有工艺的性能对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 发电方式 | 单位质量LNG净发电率/(kW·h·t–1) | 㶲效率HEx/% | 海水温度/℃ |
|---|
| 二级朗肯串联+直接膨胀[26](CCC系统) | 21.34 | 20.75 | 20.0 |
| 三级朗肯循环-独立混联[27] | 24.26 | 25.70 | 25.0 |
| 两级朗肯循环-混联[28](TCRC系统) | 23.87 | 24.62 | 15.0~20.0 |
| 三级朗肯循环-独立混联[29] | 29.17(非LNG做冷源) | 34.30 | 15.0 |
| 两级朗肯串联+直接膨胀[25] | | 42.70 | 15.0~20.0 |
| 两级热机循环串联 | 33.02 | 35.05 | 34.6 |
), ArticleFig(id=1217836034453324232, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=EN, label=Tab.9, caption=
Economic and carbon reduction effect analysis
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案类型 | 方式 | 节约电量/(万kW·h·a–1) | 节约电费/(万元·a–1) | 减碳量(标准煤)/(t·a–1) | CO2减排量/(t·a–1) | SO2减排量/(t·a–1) | 年需LNG/(万t·a–1) |
|---|
| 原方案 | 发电 | 3 283.2 | 2 593.7 | 11 852.3 | 32 733.5 | 985.0 | 182.4 |
| 冻库 | 256.0 | 202.2 | 924.2 | 2 552.3 | 76.8 |
| 总计 | 3 539.2 | 2 795.9 | 12 776.5 | 35 285.8 | 1 061.8 |
| 新方案 | 发电 | 6 204.0 | 4 902.2 | 22 396.4 | 61 853.9 | 1 861.2 | 182.4 |
| 冻库 | 256.0 | 202.2 | 924.2 | 2 552.3 | 76.8 |
| 节约泵功耗 | 330.0 | 260.7 | 1 191.3 | 3 290.1 | 99.0 |
| 总计 | 6 790.0 | 5 364.1 | 24 511.9 | 67 696.3 | 2 037.0 |
), ArticleFig(id=1217836034574959054, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836021903967056, language=CN, label=表9, caption=
经济性和降碳效果分析
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案类型 | 方式 | 节约电量/(万kW·h·a–1) | 节约电费/(万元·a–1) | 减碳量(标准煤)/(t·a–1) | CO2减排量/(t·a–1) | SO2减排量/(t·a–1) | 年需LNG/(万t·a–1) |
|---|
| 原方案 | 发电 | 3 283.2 | 2 593.7 | 11 852.3 | 32 733.5 | 985.0 | 182.4 |
| 冻库 | 256.0 | 202.2 | 924.2 | 2 552.3 | 76.8 |
| 总计 | 3 539.2 | 2 795.9 | 12 776.5 | 35 285.8 | 1 061.8 |
| 新方案 | 发电 | 6 204.0 | 4 902.2 | 22 396.4 | 61 853.9 | 1 861.2 | 182.4 |
| 冻库 | 256.0 | 202.2 | 924.2 | 2 552.3 | 76.8 |
| 节约泵功耗 | 330.0 | 260.7 | 1 191.3 | 3 290.1 | 99.0 |
| 总计 | 6 790.0 | 5 364.1 | 24 511.9 | 67 696.3 | 2 037.0 |
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