scholarly journals The Significance of a Building’s Energy Consumption Profiles for the Optimum Sizing of a Combined Heat and Power (CHP) System—A Case Study for a Student Residence Hall

2018 ◽  
Vol 10 (6) ◽  
pp. 2069 ◽  
Author(s):  
Khuram Amber ◽  
Antony Day ◽  
Naeem Ratyal ◽  
Rizwan Ahmad ◽  
Muhammad Amar
Keyword(s):  
Energy Consumption ◽  
Combined Heat And Power ◽  
Residence Hall ◽  
System A ◽  
Student Residence ◽  
Chp System

scholarly journals Techno, Economic and Environmental Assessment of a Combined Heat and Power (CHP) System—A Case Study for a University Campus

Energies ◽  
2018 ◽  
Vol 11 (5) ◽  
pp. 1133 ◽  
Author(s):  
Khuram Amber ◽  
Tony Day ◽  
Naeem Ratyal ◽  
Adnan Kiani ◽  
Rizwan Ahmad
Keyword(s):  
Environmental Assessment ◽  
Combined Heat And Power ◽  
University Campus ◽  
System A ◽  
Chp System

scholarly journals Optimization of Energy-Efficient Speed Profile for Electrified Vehicles

2018 ◽  
Author(s):  
Hadi Abbas ◽  
Youngki Kim ◽  
Jason B. Siegel ◽  
Denise M. Rizzo
Keyword(s):  
Energy Consumption ◽  
Energy Efficient ◽  
Minimum Energy ◽  
Efficient Operation ◽  
Operating Modes ◽  
Minimum Energy Consumption ◽  
System A ◽  
Trip Time ◽  
Route Information

This paper presents a study of energy-efficient operation of vehicles with electrified powertrains leveraging route information, such as road grades, to adjust the speed trajectory. First, Pontryagin’s Maximum Principle (PMP) is applied to derive necessary conditions and to determine the possible operating modes. The analysis shows that only 5 modes are required to achieve minimum energy consumption; full propulsion, cruising, coasting, full regeneration, and full regeneration with conventional braking. The minimum energy consumption problem is reformulated and solved in the distance domain using Dynamic Programming to optimize speed profiles. A case study is shown for a light weight military robot including road grades. For this system, a tradeoff between energy consumption and trip time was found. The optimal cycle uses 20% less energy for the same trip duration, or could reduce the travel time by 14% with the same energy consumption compared to the baseline operation.

scholarly journals The application of the TES technology in CHP heating system with Chinese demand profiles——A techno-economic feasibility case study

2019 ◽  
Vol 111 ◽  
pp. 06010
Author(s):  
Ruoyu Zhang ◽  
Haichao Wang ◽  
Xiaozhou Wu ◽  
Xiangli Li ◽  
Lin Duanmu
Keyword(s):  
Mathematical Model ◽  
Heating System ◽  
Combined Heat And Power ◽  
Economic Benefits ◽  
Economic Feasibility ◽  
Electricity Pricing ◽  
Peak Shaving ◽  
Optimum Type ◽  
Chp System

The thermal energy storage (TES) technology is an effective method to enhance the planning and the economy of the combined heat and power (CHP) plants, while it has still not been broadly promoted in China. In this paper we firstly establish a mathematical model for a Chinese CHP plant with TES. Then the EnergyPRO software is used to find the optimum type of the TES tank in a three-tariff electricity pricing market and the operation strategy of the CHP plant with the selected TES tank is studied. Thirdly, the economic benefits of the system with/without TES is evaluated. The results show that adding a TES tank with volume of 24000m3 can significantly increase operational profits of the CHP system and reduce the use of peak-shaving heat source.

The Impact of Australia’s Carbon Price on the Optimisation and Selection of Gas Turbine CHP System

2013 ◽  
Author(s):  
Chanel A. Gibson ◽  
Mehdi Aghaei Meybodi ◽  
Masud Behnia
Keyword(s):  
Gas Turbine ◽  
Carbon Price ◽  
Combined Heat And Power ◽  
Present Worth ◽  
Dual Connection ◽  
Chp System ◽  
The Impact ◽  
Optimum Working ◽  
Selection Of

This paper aims to indentify the impact of Australia’s carbon pricing mechanism on the optimization of a gas turbine combined heat and power (CHP) system using a thermo-economic approach. Three economic scenarios were considered: no carbon price (case one); carbon price and not liable (case two); and a carbon price and liable (case three). With the intention of demonstrating the methodology used and to identify the impact of the carbon price quantitatively, a case study was utilized. Pricing data sourced from an ongoing investigation at this institution was employed to facilitate the three economic scenarios in addition to the yearly price fluctuations. The system was permitted to operate at off-design conditions in order to determine the optimum working conditions for each month. The analysis drew on the economic indicators of net present worth and payback period. Two connection modes to the grid were considered: a single connection that allowed only for the purchasing of supplementary electricity from the grid and a dual connection which allowed both purchasing and selling of electricity.

Technoeconomic modelling and environmental assessment of a modern PEMFC CHP system: a case study of an eco-house at University of Nottingham

2019 ◽  
Vol 26 (29) ◽  
pp. 29883-29895 ◽  
Author(s):  
Sheng Sui ◽  
Rizwan Rasheed ◽  
Qinglin Li ◽  
Yuehong Su ◽  
Saffa Riffat
Keyword(s):  
Environmental Assessment ◽  
System A ◽  
Chp System

Optimization of a Small Size CHP System by Means of a Fully Transient Numerical Approach

2017 ◽  
Author(s):  
Luigi Chiantera ◽  
Massimo Milani ◽  
Luca Montorsi ◽  
Matteo Stefani
Keyword(s):  
Energy Efficiency ◽  
Ad Hoc ◽  
Electric Energy ◽  
Numerical Approach ◽  
Combined Heat And Power ◽  
Battery Capacity ◽  
Energy Conversion Systems ◽  
One Year ◽  
Chp System

The paper investigates the performance of a combined heat and power system by means of a fully dynamic numerical approach. An ad-hoc library for the simulation of energy conversion systems is developed under the OpenModelica open source platform; the library includes the main components that usually equip a Combined Heat and Power (CHP) system and they can be connected as they are logically connected in the real plant. Each component is modelled by means of equations and correlations that calculate their performance on a time dependent basis. Therefore, many configurations can be evaluated not only in terms of cumulative annual results or average performance, but the instantaneous behavior can be investigated. The numerical library is constructed using the lumped and distributed parameter approach and it is validated by comparing the numerical results with the measured values over a one-year time period. The prediction capabilities of the proposed numerical approach are evaluated by simulating a case study of a health spa. This case study is selected since it is characterized by significant requirements of both thermal and electric energy. The comparison demonstrated that the calculated results are in good agreement with the measurements in terms of both annual values and distribution over the reference period. Furthermore, an optimization algorithm is adopted and linked to the developed library in order to estimate the best size of different components of the CHP system according to a number of constraints. This feature is particularly important when addressing the energy efficiency of a complete system that is depending on a number of interdependent variables. Therefore, the case study is investigated by accounting also for additional technologies that can be further enhance the performance of the system both in terms of energy consumption and economic investment. In particular, the numerical model is used to optimized the CHP energy efficiency by estimating the best trade-off between the reduction of the energy purchased and the overall cost of the system. The application of PV panels and electric energy accumulators is also investigated and the simulation demonstrates that the size of the cogeneration unit equal to 48 kW, the number of PV panels of 299 and the battery capacity of 45 kWh provide the lowest amount of energy purchased, while the best return of investment is obtained by the CHP unit of 40 kW along with 109 PV panels and a battery of 40 kWh.

scholarly journals A smart energy consumption manager based on protues simulation

2020 ◽  
Vol 11 (1) ◽  
pp. 143
Author(s):  
Mohammed Abdulhussein Mohammed ◽  
Alaa Desher Farhood ◽  
Ahmed Jabbar Abid
Keyword(s):  
Energy Consumption ◽  
Real Time ◽  
Energy Production ◽  
Power Line ◽  
Power Line Communication ◽  
Home Appliances ◽  
System A ◽  
Production And Consumption

<p>In the proposed system, a strategy for the control of energy consumption by home appliances is provided. The statistics of previous energy production and consumption of a case study city are used in providing the strategy. In the design of the proposed system, home appliances are categorized into three levels of priority, even though it can be more than three. In this article the control of energy consumption is achieved using a real time energy consumption manager (ECM) based on stored data without the need for real time communication. The system which is proposed here is affordable and simple. Also, it does not require grid upgrade or power line communication through the grid. </p>

DEMAND-SIDE MANAGEMENT FOR ENERGY PRODUCTION USING MICRO COMBINED HEAT AND POWER SYSTEM – A REVIEW

2021 ◽  
Vol 5 (2) ◽  
pp. 18-25
Author(s):  
Hassan Abdulsalam ◽  
Ibrahim Nuhu
Keyword(s):  
Energy Consumption ◽  
Energy Demand ◽  
Industrial Revolution ◽  
Demand Side Management ◽  
Combined Heat And Power ◽  
Demand Side ◽  
Solar Panels ◽  
System A ◽  
System Optimisation ◽  
Second World

World development increased dramatically ever since the Industrial Revolution, in particular after  second world war (WWII), which drove the rise of energy consumption. Thus, energy consumption in the World has been growing continuously in the past 50 years. Using micro Combined Heat and Power (mCHP) allows energy scheduling and demand-side management depending on different variables which will benefit users and suppliers. Different researches have been conducted due to increasing interest from researchers to increase and optimise the advantages of energy scheduling. In addition to the mCHP system, optimisation process also includes distributed energy sources (solar panels) with electricity storage. On the demand side, various devices with different load profiles which can be controlled over time can be considered. This study therefore, being a desktop based one, sought to review the energy demand-side management as it applies to the use of mCHP in residential settings.

A case study of the conversion of grey water to a flush water source in a Turkish student residence hall

2016 ◽  
Vol 16 (6) ◽  
pp. 1659-1667 ◽  
Author(s):  
E. Giresunlu ◽  
B. Beler Baykal
Keyword(s):  
Water Quality ◽  
Organic Matter ◽  
Domestic Wastewater ◽  
Water Source ◽  
Residence Hall ◽  
Fecal Coliforms ◽  
Grey Water ◽  
Student Residence ◽  
Microbiological Indicators

A case study of the conversion to grey water to a flush water source in a student residence hall of the Turkish megacity Istanbul is presented. Grey water from bathtubs/showers and washbasins is treated and reused for flushing toilets. Raw and membrane bio-reactor (MBR) treated grey water quality was monitored throughout one academic year using parameters to characterize organic matter (COD/BOD), suspended solids (TSS/VSS), nutrients (N/P) and microbiological indicators (total/fecal coliform, Escherichia coli, Enterococcus). For raw grey water, all mean concentrations are below the characteristic concentrations for weak conventional domestic wastewater in terms of physicochemical parameters. However, total coliform concentrations were 7 logs, which is compatible with weak/intermediate conventional domestic wastewater and the mean concentration of fecal coliforms was 6 logs, corresponding to intermediate/strong conventional domestic wastewater. Results of this work revealed that organic matter and microbiological indicators were the important pollutants for this specific grey water. After treatment in an MBR system, grey water quality complied with standards given for reuse as flush water. The student residence hall was a successful example of conversion to grey water as a flush water source. As such, 25% of the wastewater could be revaluated and 25% of the regular daily water supply could be saved.

Sign in / Sign up

Export Citation Format

Share Document