This document describes a methodology for integrating hydrogen and electricity production with carbon capture. It introduces the motivation to improve the efficiency of carbon capture plants using an integrated approach. The methods and tools described include energy level composite curves to identify potential heat integration opportunities, and a sequential framework for generating heat exchanger networks that decomposes the problem into subproblems. The goal is to develop an engineer-driven, semi-automatic design tool that can solve large-scale industrial problems while including real-world constraints and complexity.
This document describes an integrated case study on energy optimization of a coal-fired IGCC plant for combined hydrogen and electricity production. It presents 4 integration options for the heat exchanger network that were evaluated using HENS methodology and modeling tools. The results showed improved efficiency over the baseline case while providing alternative designs for the engineer to consider based on complexity and other qualitative factors.
The document presents a sequential framework for near-optimal heat exchanger network synthesis. The framework uses a series of mixed integer linear programming (MILP) and nonlinear programming (NLP) models to iteratively optimize the heat exchanger network design. It begins with a MILP model to determine the minimum number of units. Subsequent MILP and NLP models then optimize variables like the minimum approach temperature to generate promising heat load durations, with the overall goal of minimizing total investment cost for industrial-scale problems with multiple constraints. An example application to a 30-stream problem is provided to illustrate the sequential solution approach.
This document is the 2016 annual report for the Christian Medical & Dental Associations (CMDA). It discusses CMDA's mission to equip Christian healthcare professionals to glorify God and their vision of transformed doctors transforming the world. It provides examples of how CMDA is living out this mission through global mission work, advocacy, and members being agents of transformation in their communities and professions. It highlights stories of lives being transformed through encounters with CMDA mission work and ministries both across the street and around the world.
This document presents a research proposal to study a co-design approach involving teachers, students, and researchers to generate inquiry-based learning scenarios for universities. The proposal aims to 1) study and propose an inquiry-based model to inform new learning scenario designs, 2) develop and analyze a co-design strategy involving key stakeholders, and 3) design and analyze scenarios promoting mature, autonomous ICT use by students. The research would apply a design-based methodology to explain the co-design process and support changes to teaching practices.
This document describes a methodology for integrating hydrogen and electricity production with carbon capture. It introduces the motivation to improve the efficiency of carbon capture plants using an integrated approach. The methods and tools described include energy level composite curves to identify potential heat integration opportunities, and a sequential framework for generating heat exchanger networks that decomposes the problem into subproblems. The goal is to develop an engineer-driven, semi-automatic design tool that can solve large-scale industrial problems while including real-world constraints and complexity.
This document describes an integrated case study on energy optimization of a coal-fired IGCC plant for combined hydrogen and electricity production. It presents 4 integration options for the heat exchanger network that were evaluated using HENS methodology and modeling tools. The results showed improved efficiency over the baseline case while providing alternative designs for the engineer to consider based on complexity and other qualitative factors.
The document presents a sequential framework for near-optimal heat exchanger network synthesis. The framework uses a series of mixed integer linear programming (MILP) and nonlinear programming (NLP) models to iteratively optimize the heat exchanger network design. It begins with a MILP model to determine the minimum number of units. Subsequent MILP and NLP models then optimize variables like the minimum approach temperature to generate promising heat load durations, with the overall goal of minimizing total investment cost for industrial-scale problems with multiple constraints. An example application to a 30-stream problem is provided to illustrate the sequential solution approach.
This document is the 2016 annual report for the Christian Medical & Dental Associations (CMDA). It discusses CMDA's mission to equip Christian healthcare professionals to glorify God and their vision of transformed doctors transforming the world. It provides examples of how CMDA is living out this mission through global mission work, advocacy, and members being agents of transformation in their communities and professions. It highlights stories of lives being transformed through encounters with CMDA mission work and ministries both across the street and around the world.
This document presents a research proposal to study a co-design approach involving teachers, students, and researchers to generate inquiry-based learning scenarios for universities. The proposal aims to 1) study and propose an inquiry-based model to inform new learning scenario designs, 2) develop and analyze a co-design strategy involving key stakeholders, and 3) design and analyze scenarios promoting mature, autonomous ICT use by students. The research would apply a design-based methodology to explain the co-design process and support changes to teaching practices.
The document contains a collection of quotes related to customer service, empathy, learning, and growth. Some key themes that emerge are the importance of understanding customers, keeping customers happy, learning from unhappy customers, having empathy, allowing for growth and learning, focusing on contribution and win-win relationships, and maintaining a spirit of vivacity.
Energy efficiency in process plants with an emphasis on hensRahulA
The document discusses developing new methods for energy integration of industrial processes. It proposes using energy level as a quality parameter for this purpose. Energy level is defined as the ratio of exergy to energy of a stream. It aims to develop a graphical tool based on this parameter to allow visualization of energy transfer between process units and streams, incorporating pressure, composition, and temperature changes for a thermodynamic approach. This would address limitations of existing pinch analysis and exergy analysis methods.
Process design and analysis of dual phase membanesRahulA
This document summarizes the design and analysis of a process using dual-phase membranes for post-combustion carbon capture from gas turbines on an offshore floating production storage and offloading (FPSO) unit. It presents the challenges of offshore carbon capture and compares the potential performance of a dual-phase membrane process to a conventional monoethanolamine (MEA) absorption process. The analysis shows the membrane process could provide comparable or lower energy penalties for carbon capture while requiring less equipment volume than the MEA reference case. However, further development is still needed for the novel dual-phase membrane technology.
The document outlines a presentation on optimal synthesis of steam and power plants. It discusses early thermodynamic-based heuristic methods for designing combined heat and power (CHP) systems, including approaches that differentiated between steam-dominant and power-dominant cases and included gas turbines and combined gas-steam cycles. It also notes the use of exergy analysis and optimization methods for CHP system design.
Integration of Oxygen Transport Membranes in an IGCC power plant with CO2 cap...RahulA
The document discusses integrating oxygen transport membranes (OTMs) into an integrated gasification combined cycle (IGCC) power plant with carbon dioxide capture to improve efficiency. OTMs are dense ceramic membranes that can selectively separate oxygen from air. The objectives are to develop efficient IGCC cycles using OTMs as an air separation unit to reduce the efficiency penalty of carbon capture. Various membrane operating methods and considerations for integrating OTMs into an IGCC are examined.
Process design of Ca-L process for CO2 capture from NGCCRahulA
The document summarizes research on using a calcium looping process to capture CO2 from a natural gas combined cycle power plant. The calcium looping process was modeled and several improvements were analyzed, including heat integration, advanced steam cycles, improved sorbents, and integrating oxygen transport membranes. These improvements increased the process efficiency by 8.4 percentage points compared to conventional post-combustion capture using MEA. The research is part of an ongoing effort in the BIGCCS Centre to systematically evaluate CO2 capture processes and identify directions for further improvements like sorbent development.
The document contains a collection of quotes related to customer service, empathy, learning, and growth. Some key themes that emerge are the importance of understanding customers, keeping customers happy, learning from unhappy customers, having empathy, allowing for growth and learning, focusing on contribution and win-win relationships, and maintaining a spirit of vivacity.
Energy efficiency in process plants with an emphasis on hensRahulA
The document discusses developing new methods for energy integration of industrial processes. It proposes using energy level as a quality parameter for this purpose. Energy level is defined as the ratio of exergy to energy of a stream. It aims to develop a graphical tool based on this parameter to allow visualization of energy transfer between process units and streams, incorporating pressure, composition, and temperature changes for a thermodynamic approach. This would address limitations of existing pinch analysis and exergy analysis methods.
Process design and analysis of dual phase membanesRahulA
This document summarizes the design and analysis of a process using dual-phase membranes for post-combustion carbon capture from gas turbines on an offshore floating production storage and offloading (FPSO) unit. It presents the challenges of offshore carbon capture and compares the potential performance of a dual-phase membrane process to a conventional monoethanolamine (MEA) absorption process. The analysis shows the membrane process could provide comparable or lower energy penalties for carbon capture while requiring less equipment volume than the MEA reference case. However, further development is still needed for the novel dual-phase membrane technology.
The document outlines a presentation on optimal synthesis of steam and power plants. It discusses early thermodynamic-based heuristic methods for designing combined heat and power (CHP) systems, including approaches that differentiated between steam-dominant and power-dominant cases and included gas turbines and combined gas-steam cycles. It also notes the use of exergy analysis and optimization methods for CHP system design.
Integration of Oxygen Transport Membranes in an IGCC power plant with CO2 cap...RahulA
The document discusses integrating oxygen transport membranes (OTMs) into an integrated gasification combined cycle (IGCC) power plant with carbon dioxide capture to improve efficiency. OTMs are dense ceramic membranes that can selectively separate oxygen from air. The objectives are to develop efficient IGCC cycles using OTMs as an air separation unit to reduce the efficiency penalty of carbon capture. Various membrane operating methods and considerations for integrating OTMs into an IGCC are examined.
Process design of Ca-L process for CO2 capture from NGCCRahulA
The document summarizes research on using a calcium looping process to capture CO2 from a natural gas combined cycle power plant. The calcium looping process was modeled and several improvements were analyzed, including heat integration, advanced steam cycles, improved sorbents, and integrating oxygen transport membranes. These improvements increased the process efficiency by 8.4 percentage points compared to conventional post-combustion capture using MEA. The research is part of an ongoing effort in the BIGCCS Centre to systematically evaluate CO2 capture processes and identify directions for further improvements like sorbent development.
2. Per separar el numero enter del decimal
utilitzem el «separador decimal»,
que és una coma.
A la nostra tradició no hi utilitzem mai el punt.
Com s’escriu?
7’9
7,9
7,9
7.9
Es pot utilitzar apòstrof
quan hi hagi risc de confusió
3. Els números amb moltes xifres es poden repartir
en grups de tres xifres separades per un espai.
En una taula el format ha de ser el mateix.
Com s’escriu?
6.780.345,5
6 780.345,5
1
6 780 345,5
6.780.345’5
6 780 345,5 No s’hi utilitzen comes
(excepte la decimal)
ni punts
4. En una llista els números cal separar-los
amb una coma i un espai
Com s’escriu?
4,3,5,8
4, 3,5,8
4, 3,5, 8
4, 3,5, 8
4-3,5-8 També en coordenades cartesianes.
Ex: (1,2, 2,4)
5. Els símbols de les unitats no són abreviatures,
no van seguits d’un punt.
No s’hi utilitza el plural, ni es poden barrejar símbols d’unitats
amb noms d’unitats en una mateixa expressió.
Com s’escriu?
8m
8m
8 mts
8 m.
7s
7” S’admet el punt quan correspon
al final d’una frase:
7 seg ...ha trigat 3,2 s.
7s
6. Només s’utilitza una unitat.
Per a angles plans, és millor dividir el grau de forma decimal
(és preferible escriure 22,50° que 22° 30 ′)
Com s’escriu?
5,06 m
5,06 m
5 m 6 cm
506 cm
506 cm
5 m 0 dm 6 cm Però no en la navegació, la cartografia,
l’astronomia, i per a la mesura
d’angles molt petits.
7. Sempre es deixa un espai
entre el número i la unitat
Com s’escriu?
5kg
5 kg
5 kg
20°C
20 °C
20 °C Excepte als símbols del
grau °, el minut ’ i el segon ” d’angle pla,
als quals no es deixa espai.
Ex: 90°
8. Convé deixar un espai
també entre el número i el símbol %
Com s’escriu?
68,3 %
68,3%
68,3 %
9. Els símbols de les unitats sempre s’escriuen
en caràcters romans (rectes) i en minúscula,
excepte si deriven d’un nom propi
Com s’escriu?
3m
3m
3m
3M
80,5 N
80,5 n Es recomana l’ús de la lletra L en majúscula
per evitar de confondre el símbol de litre
80,5 N amb la xifra 1 (u):
5L
80,5 N
10. La multiplicació s’indica amb espai o un punt volat (·).
La divisió, amb una línia horitzontal o una barra obliqua (/)
Com s’escriu?
Nxm
N m N·m
N·m
Nm
m/s
Nm Al combinar símbols d’unitats,
pot ser necessari utilitzar claudàtors
m/s i parèntesis per agrupar
m:s