Multi-energy-system design and experimental research of natural-energy-driven unmanned surface vehicle

In developed countries like Austria the renewable energy potential might outpace the demand. This requires primary energy efficiency measures as well as an energy system design that enables the integration of variable renewable energy sources. Municipal energy systems, which supply customers with heat and electricity, will play an important role in this task. The cumulative exergy consumption methodology considers resource consumption from the raw material to the final product. It includes the exergetic expenses for imported energy as well as for building the energy infrastructure. In this paper, we determine the exergy optimal energy system design of an exemplary municipal energy system by using cumulative exergy consumption minimisation. The results of a case study show that well a linked electricity and heat system using heat pumps, combined heat power plants and battery and thermal storages is necessary. This enables an efficient supply and also provides the necessary flexibilities for integrating variable renewable energy sources.

Download Full-text

A policy-based multi-objective optimisation framework for residential distributed energy system design

Renewable Energy and Environmental Sustainability ◽

10.1051/rees/2017011 ◽

2017 ◽

Vol 2 ◽

pp. 5

Author(s):

Carmen Wouters ◽

Eric Fraga ◽

Adrian M. James

Keyword(s):

System Design ◽

Energy System ◽

Distributed Energy ◽

Multi Objective ◽

Distributed Energy System

Download Full-text

DISTRICT HEATING SYSTEM DESIGN FOR RURAL NOVA SCOTIAN COMMUNITIES USING BUILDING SIMULATION AND ENERGY USAGE DATABASES

Transactions of the Canadian Society for Mechanical Engineering ◽

10.1139/tcsme-2009-0006 ◽

2009 ◽

Vol 33 (1) ◽

pp. 51-64 ◽

Cited By ~ 11

Author(s):

Jaspreet S. Nijjar ◽

Alan S. Fung ◽

Larry Hughes ◽

Hessam Taherian

Keyword(s):

System Design ◽

Energy Demand ◽

District Heating ◽

Heating System ◽

Energy System ◽

Building Simulation ◽

Energy Usage ◽

District Heating System ◽

District Energy ◽

Heating Profiles

There are several benefits to district heating systems. The system design requires knowledge of community peak heating load and annual heating energy requirements. For this purpose, a residential energy model was developed using several energy usage databases. Hourly, peak, and annual heating demands were estimated by simulating 15 archetype houses using an hour-by-hour building simulation program, ENERPASS. Estimated heating profiles from model houses were used to design a district heating system for a hypothetical rural community in Nova Scotia. The findings show that building simulation is a very flexible and valuable tool in identifying the required peak and hourly energy demand of a community for the design of district energy system, and biomass district heating system can reduce community greenhouse gas emissions.

Download Full-text